[14] | 1 | /**CFile*********************************************************************** |
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| 2 | |
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| 3 | FileName [puresatIPUtil.c] |
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| 4 | |
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| 5 | PackageName [puresat] |
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| 6 | |
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| 7 | Synopsis [Abstraction refinement for large scale invariant checking.] |
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| 8 | |
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| 9 | Description [This file contains the functions to check invariant properties |
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| 10 | by the PureSAT abstraction refinement algorithm, which is entirely based on |
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| 11 | SAT solver, the input of which could be either CNF or AIG. It has several |
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| 12 | parts: |
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| 13 | |
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| 14 | * Localization-reduction base Abstraction |
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| 15 | * K-induction or interpolation to prove the truth of a property |
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| 16 | * Bounded Model Checking to find bugs |
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| 17 | * Incremental concretization based methods to verify abstract bugs |
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| 18 | * Incremental SAT solver to improve efficiency |
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| 19 | * UNSAT proof based method to obtain refinement |
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| 20 | * AROSAT to bring in only necessary latches into unsat proofs |
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| 21 | * Bridge abstraction to get compact coarse refinement |
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| 22 | * Refinement minization to guarrantee minimal refinements |
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| 23 | * Unsat proof-based refinement minimization to eliminate multiple candidate |
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| 24 | by on SAT test |
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| 25 | * Refinement prediction to decrease the number of refinement iterations |
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| 26 | * Dynamic switching to redistribute computional resources to improve |
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| 27 | efficiency |
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| 28 | |
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| 29 | For more information, please check the BMC'03, ICCAD'04, STTT'05 and TACAS'05 |
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| 30 | paper of Li et al., "A satisfiability-based appraoch to abstraction |
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| 31 | refinement in model checking", " Abstraction in symbolic model checking |
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| 32 | using satisfiability as the only decision procedure", "Efficient computation |
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| 33 | of small abstraction refinements", and "Efficient abstraction refinement in |
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| 34 | interpolation-based unbounded model checking"] |
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| 35 | |
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| 36 | Author [Bing Li] |
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| 37 | |
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| 38 | Copyright [Copyright (c) 2004 The Regents of the Univ. of Colorado. |
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| 39 | All rights reserved. |
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| 40 | |
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| 41 | Permission is hereby granted, without written agreement and without |
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| 42 | license or royalty fees, to use, copy, modify, and distribute this |
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| 43 | software and its documentation for any purpose, provided that the |
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| 44 | above copyright notice and the following two paragraphs appear in |
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| 45 | all copies of this software.] |
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| 46 | |
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| 47 | ******************************************************************************/ |
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| 48 | |
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| 49 | #include "puresatInt.h" |
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| 50 | |
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| 51 | /*---------------------------------------------------------------------------*/ |
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| 52 | /* Constant declarations */ |
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| 53 | /*---------------------------------------------------------------------------*/ |
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| 54 | |
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| 55 | /*---------------------------------------------------------------------------*/ |
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| 56 | /* Type declarations */ |
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| 57 | /*---------------------------------------------------------------------------*/ |
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| 58 | |
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| 59 | |
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| 60 | /*---------------------------------------------------------------------------*/ |
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| 61 | /* Structure declarations */ |
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| 62 | /*---------------------------------------------------------------------------*/ |
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| 63 | |
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| 64 | |
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| 65 | /*---------------------------------------------------------------------------*/ |
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| 66 | /* Variable declarations */ |
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| 67 | /*---------------------------------------------------------------------------*/ |
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| 68 | |
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| 69 | /*---------------------------------------------------------------------------*/ |
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| 70 | /* Macro declarations */ |
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| 71 | /*---------------------------------------------------------------------------*/ |
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| 72 | |
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| 73 | /**AutomaticStart*************************************************************/ |
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| 74 | |
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| 75 | /*---------------------------------------------------------------------------*/ |
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| 76 | /* Static function prototypes */ |
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| 77 | /*---------------------------------------------------------------------------*/ |
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| 78 | |
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| 79 | |
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| 80 | /**AutomaticEnd***************************************************************/ |
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| 81 | |
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| 82 | /*---------------------------------------------------------------------------*/ |
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| 83 | /* Definition of exported functions */ |
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| 84 | /*---------------------------------------------------------------------------*/ |
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| 85 | |
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| 86 | |
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| 87 | /*---------------------------------------------------------------------------*/ |
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| 88 | /* Definition of internal functions */ |
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| 89 | /*---------------------------------------------------------------------------*/ |
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| 90 | |
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| 91 | /**Function******************************************************************** |
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| 92 | |
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| 93 | Synopsis [] |
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| 94 | |
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| 95 | Description [] |
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| 96 | |
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| 97 | SideEffects [] |
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| 98 | |
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| 99 | SeeAlso [] |
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| 100 | |
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| 101 | ******************************************************************************/ |
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| 102 | |
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| 103 | /**Function******************************************************************** |
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| 104 | |
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| 105 | Synopsis [Comparison function for sorting] |
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| 106 | |
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| 107 | Description [Comparison function for sorting] |
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| 108 | |
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| 109 | SideEffects [] |
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| 110 | |
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| 111 | SeeAlso [] |
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| 112 | |
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| 113 | ******************************************************************************/ |
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| 114 | |
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| 115 | static int |
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| 116 | NodeIndexCompare(const void *x, const void *y) |
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| 117 | { |
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| 118 | int n1, n2; |
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| 119 | |
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| 120 | n1 = *(int *)x; |
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| 121 | n2 = *(int *)y; |
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| 122 | return(n1 > n2); |
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| 123 | } |
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| 124 | |
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| 125 | /**Function******************************************************************** |
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| 126 | |
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| 127 | Synopsis [] |
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| 128 | |
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| 129 | Description [] |
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| 130 | |
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| 131 | SideEffects [] |
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| 132 | |
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| 133 | SeeAlso [] |
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| 134 | |
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| 135 | ******************************************************************************/ |
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| 136 | |
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| 137 | static int |
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| 138 | StringCheckIsInteger( |
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| 139 | char *string, |
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| 140 | int *value) |
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| 141 | { |
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| 142 | char *ptr; |
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| 143 | long l; |
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| 144 | |
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| 145 | l = strtol (string, &ptr, 0) ; |
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| 146 | if(*ptr != '\0') |
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| 147 | return 0; |
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| 148 | if ((l > MAXINT) || (l < -1 - MAXINT)) |
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| 149 | return 1 ; |
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| 150 | *value = (int) l; |
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| 151 | return 2 ; |
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| 152 | } |
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| 153 | |
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| 154 | |
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| 155 | /**AutomaticEnd***************************************************************/ |
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| 156 | |
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| 157 | /*---------------------------------------------------------------------------*/ |
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| 158 | /* Definition of exported functions */ |
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| 159 | /*---------------------------------------------------------------------------*/ |
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| 160 | /**Function******************************************************************** |
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| 161 | |
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| 162 | Synopsis [Create a node for resolution tree] |
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| 163 | |
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| 164 | Description [Create a node for resolution tree] |
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| 165 | |
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| 166 | SideEffects [] |
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| 167 | |
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| 168 | SeeAlso [] |
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| 169 | |
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| 170 | ******************************************************************************/ |
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| 171 | |
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| 172 | |
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| 173 | RTnode_t RTCreateNode(RTManager_t * rm) |
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| 174 | { |
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| 175 | RTnode_t node; |
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| 176 | |
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| 177 | if(rm->nArray==0){ |
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| 178 | rm->nArray = ALLOC(long, RTnodeSize*RT_BLOCK); |
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| 179 | rm->maxSize = RTnodeSize*RT_BLOCK; |
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| 180 | rm->aSize = 0; |
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| 181 | } |
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| 182 | |
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| 183 | if(rm->maxSize<=rm->aSize+RTnodeSize){ |
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| 184 | rm->nArray = REALLOC(long, rm->nArray,rm->maxSize+RTnodeSize*RT_BLOCK); |
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| 185 | if(rm->nArray == 0){ |
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| 186 | fprintf(vis_stdout,"memout when alloc %ld bytes\n", |
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| 187 | (rm->maxSize+RTnodeSize*RT_BLOCK)*4); |
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| 188 | exit(0); |
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| 189 | } |
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| 190 | rm->maxSize = rm->maxSize+RTnodeSize*1000; |
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| 191 | } |
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| 192 | rm->aSize += RTnodeSize; |
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| 193 | node = rm->aSize; |
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| 194 | |
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| 195 | RT_fSize(node) = 0; |
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| 196 | RT_formula(node) = 0; |
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| 197 | RT_oriClsIdx(node) = 0; |
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| 198 | RT_pivot(node) = 0; |
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| 199 | RT_flag(node) = 0; |
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| 200 | RT_IPnode(node) = -1; |
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| 201 | RT_left(node) = 0; |
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| 202 | RT_right(node) = 0; |
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| 203 | |
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| 204 | if(rm->fArray==0){ |
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| 205 | rm->fArray = ALLOC(long,FORMULA_BLOCK); |
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| 206 | |
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| 207 | rm->cpos = 0; |
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| 208 | rm->maxpos = FORMULA_BLOCK; |
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| 209 | } |
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| 210 | |
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| 211 | return node; |
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| 212 | } |
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| 213 | |
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| 214 | /**Function******************************************************************** |
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| 215 | |
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| 216 | Synopsis [Allocate an interpolation manager] |
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| 217 | |
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| 218 | Description [Allocate an interpolation manager] |
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| 219 | |
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| 220 | SideEffects [] |
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| 221 | |
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| 222 | SeeAlso [] |
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| 223 | |
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| 224 | ******************************************************************************/ |
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| 225 | |
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| 226 | |
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| 227 | IP_Manager_t * IPManagerAlloc() |
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| 228 | { |
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| 229 | IP_Manager_t * ipm = ALLOC(IP_Manager_t, 1); |
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| 230 | memset(ipm,0,sizeof(IP_Manager_t)); |
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| 231 | return ipm; |
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| 232 | } |
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| 233 | |
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| 234 | |
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| 235 | /**Function******************************************************************** |
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| 236 | |
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| 237 | Synopsis [Free an interpolation manager] |
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| 238 | |
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| 239 | Description [Free an interpolation manager] |
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| 240 | |
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| 241 | SideEffects [] |
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| 242 | |
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| 243 | SeeAlso [] |
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| 244 | |
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| 245 | ******************************************************************************/ |
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| 246 | |
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| 247 | |
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| 248 | void IPManagerFree(IP_Manager_t *ipm) |
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| 249 | { |
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| 250 | FREE(ipm); |
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| 251 | } |
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| 252 | |
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| 253 | /**Function******************************************************************** |
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| 254 | |
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| 255 | Synopsis [Find the type of conflict, return the value to caller] |
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| 256 | |
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| 257 | Description [ |
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| 258 | |
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| 259 | |
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| 260 | 0 1 1 1 1 1 |
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| 261 | | | | | | | |
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| 262 | 20---33,49--- 9,13--- 17 --- 5 --- 1--- |
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| 263 | / \ / \ / \ / \ / \ / \ |
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| 264 | 1 1 X 0 0 X 1 0 0 1 0 0 |
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| 265 | |
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| 266 | Bing note: For case 1, maybe solving conflict with both childern is |
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| 267 | better, but in sat package, only conflict with left child is solved ] |
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| 268 | |
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| 269 | SideEffects [] |
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| 270 | |
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| 271 | SeeAlso [] |
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| 272 | |
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| 273 | ******************************************************************************/ |
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| 274 | |
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| 275 | |
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| 276 | |
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| 277 | int PureSat_IdentifyConflict( |
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| 278 | satManager_t *cm, |
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| 279 | long left, |
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| 280 | bAigEdge_t right, |
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| 281 | bAigEdge_t node) |
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| 282 | { |
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| 283 | int result; /*1:left 2:right 3:both*/ |
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| 284 | int value = SATgetValue(left,right,node); |
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| 285 | switch(value){ |
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| 286 | case 1: |
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| 287 | case 5: |
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| 288 | case 9: |
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| 289 | case 13: |
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| 290 | result = 1; |
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| 291 | break; |
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| 292 | case 17: |
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| 293 | case 33: |
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| 294 | case 49: |
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| 295 | result = 2; |
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| 296 | break; |
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| 297 | case 20: |
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| 298 | result = 3; |
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| 299 | break; |
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| 300 | default: |
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| 301 | fprintf(vis_stdout,"can't identify the conflict, exit\n"); |
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| 302 | exit(0); |
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| 303 | } |
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| 304 | |
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| 305 | return result; |
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| 306 | } |
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| 307 | |
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| 308 | /**Function******************************************************************** |
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| 309 | |
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| 310 | Synopsis [Get COI for a network node] |
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| 311 | |
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| 312 | Description [Get COI for a network node] |
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| 313 | |
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| 314 | SideEffects [] |
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| 315 | |
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| 316 | SeeAlso [] |
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| 317 | |
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| 318 | ******************************************************************************/ |
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| 319 | |
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| 320 | |
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| 321 | void |
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| 322 | PureSatBmcGetCoiForNtkNode_New( |
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| 323 | Ntk_Node_t *node, |
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| 324 | st_table *CoiTable, |
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| 325 | st_table *visited) |
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| 326 | { |
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| 327 | int i; |
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| 328 | Ntk_Node_t *faninNode; |
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| 329 | |
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| 330 | if(node == NIL(Ntk_Node_t)){ |
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| 331 | return; |
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| 332 | } |
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| 333 | |
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| 334 | |
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| 335 | if (st_lookup_int(visited, (char *) node, NIL(int))){ |
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| 336 | return; |
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| 337 | } |
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| 338 | st_insert(visited, (char *) node, (char *) 0); |
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| 339 | |
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| 340 | if(Ntk_NodeTestIsInput(node)) |
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| 341 | return; |
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| 342 | |
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| 343 | if (Ntk_NodeTestIsLatch(node)){ |
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| 344 | st_insert(CoiTable, (char *) node, (char *)0); |
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| 345 | } |
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| 346 | |
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| 347 | Ntk_NodeForEachFanin(node, i, faninNode) { |
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| 348 | PureSatBmcGetCoiForNtkNode_New(faninNode, CoiTable, visited); |
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| 349 | } |
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| 350 | |
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| 351 | return; |
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| 352 | } |
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| 353 | |
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| 354 | /**Function******************************************************************** |
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| 355 | |
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| 356 | Synopsis [Recursively get COI nodes for a LTL formula] |
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| 357 | |
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| 358 | Description [Recursively get COI nodes for a LTL formula] |
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| 359 | |
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| 360 | SideEffects [] |
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| 361 | |
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| 362 | SeeAlso [] |
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| 363 | |
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| 364 | ******************************************************************************/ |
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| 365 | |
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| 366 | void |
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| 367 | PureSatBmcGetCoiForLtlFormulaRecursive_New( |
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| 368 | Ntk_Network_t *network, |
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| 369 | Ctlsp_Formula_t *formula, |
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| 370 | st_table *ltlCoiTable, |
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| 371 | st_table *visited) |
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| 372 | { |
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| 373 | if (formula == NIL(Ctlsp_Formula_t)) { |
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| 374 | return; |
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| 375 | } |
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| 376 | /* leaf node */ |
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| 377 | if (formula->type == Ctlsp_ID_c){ |
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| 378 | char *name = Ctlsp_FormulaReadVariableName(formula); |
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| 379 | Ntk_Node_t *node = Ntk_NetworkFindNodeByName(network, name); |
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| 380 | int tmp; |
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| 381 | |
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| 382 | if (st_lookup_int(visited, (char *) node, &tmp)){ |
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| 383 | /* Node already visited */ |
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| 384 | return; |
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| 385 | } |
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| 386 | PureSatBmcGetCoiForNtkNode_New(node, ltlCoiTable, visited); |
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| 387 | return; |
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| 388 | } |
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| 389 | PureSatBmcGetCoiForLtlFormulaRecursive_New(network, formula->left, ltlCoiTable, visited); |
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| 390 | PureSatBmcGetCoiForLtlFormulaRecursive_New(network, formula->right, ltlCoiTable, visited); |
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| 391 | |
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| 392 | return; |
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| 393 | } |
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| 394 | |
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| 395 | /**Function******************************************************************** |
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| 396 | |
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| 397 | Synopsis [Get COI nodes for a LTL formula] |
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| 398 | |
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| 399 | Description [Get COI nodes for a LTL formula] |
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| 400 | |
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| 401 | SideEffects [] |
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| 402 | |
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| 403 | SeeAlso [] |
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| 404 | |
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| 405 | ******************************************************************************/ |
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| 406 | |
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| 407 | void |
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| 408 | PureSatBmcGetCoiForLtlFormula_New( |
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| 409 | Ntk_Network_t *network, |
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| 410 | Ctlsp_Formula_t *formula, |
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| 411 | st_table *ltlCoiTable) |
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| 412 | { |
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| 413 | st_table *visited = st_init_table(st_ptrcmp, st_ptrhash); |
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| 414 | |
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| 415 | PureSatBmcGetCoiForLtlFormulaRecursive_New(network, formula, ltlCoiTable, visited); |
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| 416 | st_free_table(visited); |
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| 417 | return; |
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| 418 | } /* BmcGetCoiForLtlFormula() */ |
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| 419 | |
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| 420 | |
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| 421 | /**Function******************************************************************** |
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| 422 | |
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| 423 | Synopsis [Mark transitive fanin for an aig node] |
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| 424 | |
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| 425 | Description [Mark transitive fanin for an aig node] |
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| 426 | |
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| 427 | SideEffects [] |
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| 428 | |
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| 429 | SeeAlso [] |
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| 430 | |
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| 431 | ******************************************************************************/ |
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| 432 | |
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| 433 | |
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| 434 | void PureSat_MarkTransitiveFaninForNode( |
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| 435 | satManager_t *cm, |
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| 436 | bAigEdge_t v, |
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| 437 | unsigned int mask) |
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| 438 | { |
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| 439 | if(v == bAig_NULL) return; |
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| 440 | |
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| 441 | v = SATnormalNode(v); |
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| 442 | |
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| 443 | if(SATflags(v) & mask) return; |
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| 444 | |
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| 445 | SATflags(v) |= mask; |
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| 446 | if(SATflags(v) & Visited3Mask) return; |
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| 447 | |
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| 448 | PureSat_MarkTransitiveFaninForNode(cm, SATleftChild(v), mask); |
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| 449 | PureSat_MarkTransitiveFaninForNode(cm, SATrightChild(v), mask); |
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| 450 | } |
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| 451 | |
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| 452 | /**Function******************************************************************** |
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| 453 | |
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| 454 | Synopsis [Mark transitive fanin for an array of aig nodes] |
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| 455 | |
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| 456 | Description [Mark transitive fanin for an array of aig nodes] |
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| 457 | |
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| 458 | SideEffects [] |
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| 459 | |
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| 460 | SeeAlso [] |
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| 461 | |
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| 462 | ******************************************************************************/ |
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| 463 | |
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| 464 | |
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| 465 | void PureSat_MarkTransitiveFaninForArray( |
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| 466 | satManager_t *cm, |
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| 467 | satArray_t *arr, |
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| 468 | unsigned int mask) |
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| 469 | { |
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| 470 | int i, size; |
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| 471 | bAigEdge_t v; |
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| 472 | |
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| 473 | if(arr == 0) return; |
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| 474 | size = arr->num; |
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| 475 | |
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| 476 | for(i=0; i<size; i++) { |
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| 477 | v = arr->space[i]; |
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| 478 | PureSat_MarkTransitiveFaninForNode(cm, v, mask); |
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| 479 | } |
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| 480 | } |
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| 481 | |
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| 482 | /**Function******************************************************************** |
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| 483 | |
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| 484 | Synopsis [Mark transitive fanin for an aig node] |
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| 485 | |
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| 486 | Description [Mark transitive fanin for an aig node] |
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| 487 | |
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| 488 | SideEffects [] |
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| 489 | |
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| 490 | SeeAlso [] |
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| 491 | |
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| 492 | ******************************************************************************/ |
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| 493 | |
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| 494 | void PureSat_MarkTransitiveFaninForNode2( |
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| 495 | mAig_Manager_t *manager, |
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| 496 | bAigEdge_t v, |
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| 497 | unsigned int mask) |
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| 498 | { |
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| 499 | if(v == bAig_NULL) return; |
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| 500 | |
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| 501 | v = SATnormalNode(v); |
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| 502 | |
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| 503 | if(flags(v) & mask) return; |
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| 504 | |
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| 505 | flags(v) |= mask; |
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| 506 | if(flags(v) & Visited3Mask) return; |
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| 507 | |
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| 508 | PureSat_MarkTransitiveFaninForNode2(manager, leftChild(v), mask); |
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| 509 | PureSat_MarkTransitiveFaninForNode2(manager, rightChild(v), mask); |
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| 510 | } |
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| 511 | |
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| 512 | /**Function******************************************************************** |
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| 513 | |
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| 514 | Synopsis [Mark transitive fanin for an array of aig nodes] |
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| 515 | |
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| 516 | Description [Mark transitive fanin for an array of aig nodes] |
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| 517 | |
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| 518 | SideEffects [] |
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| 519 | |
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| 520 | SeeAlso [] |
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| 521 | |
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| 522 | ******************************************************************************/ |
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| 523 | |
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| 524 | |
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| 525 | void PureSat_MarkTransitiveFaninForArray2( |
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| 526 | mAig_Manager_t *manager, |
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| 527 | satArray_t *arr, |
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| 528 | unsigned int mask) |
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| 529 | { |
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| 530 | bAigEdge_t v; |
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| 531 | int i, size; |
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| 532 | |
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| 533 | if(arr == 0) return; |
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| 534 | size = arr->num; |
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| 535 | |
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| 536 | for(i=0; i<size; i++) { |
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| 537 | v = arr->space[i]; |
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| 538 | PureSat_MarkTransitiveFaninForNode2(manager, v, mask); |
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| 539 | } |
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| 540 | } |
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| 541 | |
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| 542 | /**Function******************************************************************** |
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| 543 | |
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| 544 | Synopsis [Mark transitive fanin for an array of aig nodes] |
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| 545 | |
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| 546 | Description [Mark transitive fanin for an array of aig nodes] |
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| 547 | |
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| 548 | SideEffects [] |
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| 549 | |
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| 550 | SeeAlso [] |
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| 551 | |
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| 552 | ******************************************************************************/ |
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| 553 | |
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| 554 | |
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| 555 | |
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| 556 | void PureSat_MarkTransitiveFaninForNode3( |
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| 557 | mAig_Manager_t *manager, |
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| 558 | bAigEdge_t v, |
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| 559 | unsigned int mask) |
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| 560 | { |
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| 561 | if(v == 2) return; |
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| 562 | |
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| 563 | v = SATnormalNode(v); |
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| 564 | |
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| 565 | if(flags(v) & mask) return; |
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| 566 | |
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| 567 | flags(v) |= mask; |
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| 568 | |
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| 569 | PureSat_MarkTransitiveFaninForNode3(manager, leftChild(v), mask); |
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| 570 | PureSat_MarkTransitiveFaninForNode3(manager, rightChild(v), mask); |
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| 571 | } |
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| 572 | |
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| 573 | /**Function******************************************************************** |
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| 574 | |
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| 575 | Synopsis [Mark transitive fanin for an array of aig nodes] |
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| 576 | |
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| 577 | Description [Mark transitive fanin for an array of aig nodes] |
---|
| 578 | |
---|
| 579 | SideEffects [] |
---|
| 580 | |
---|
| 581 | SeeAlso [] |
---|
| 582 | |
---|
| 583 | ******************************************************************************/ |
---|
| 584 | |
---|
| 585 | void PureSat_MarkTransitiveFaninForArray3( |
---|
| 586 | mAig_Manager_t *manager, |
---|
| 587 | satArray_t *arr, |
---|
| 588 | unsigned int mask) |
---|
| 589 | { |
---|
| 590 | bAigEdge_t v; |
---|
| 591 | int i, size; |
---|
| 592 | |
---|
| 593 | if(arr == 0) return; |
---|
| 594 | size = arr->num; |
---|
| 595 | |
---|
| 596 | for(i=0; i<size; i++) { |
---|
| 597 | v = arr->space[i]; |
---|
| 598 | PureSat_MarkTransitiveFaninForNode3(manager, v, mask); |
---|
| 599 | } |
---|
| 600 | } |
---|
| 601 | |
---|
| 602 | |
---|
| 603 | /**Function******************************************************************** |
---|
| 604 | |
---|
| 605 | Synopsis [Mark transitive fanin for an array of aig nodes] |
---|
| 606 | |
---|
| 607 | Description [Mark transitive fanin for an array of aig nodes] |
---|
| 608 | |
---|
| 609 | SideEffects [] |
---|
| 610 | |
---|
| 611 | SeeAlso [] |
---|
| 612 | |
---|
| 613 | ******************************************************************************/ |
---|
| 614 | |
---|
| 615 | |
---|
| 616 | void PureSat_MarkTransitiveFaninForNode4( |
---|
| 617 | mAig_Manager_t *manager, |
---|
| 618 | bAigEdge_t v, |
---|
| 619 | unsigned int mask, |
---|
| 620 | int bound) |
---|
| 621 | { |
---|
| 622 | if(v == bAig_NULL) return; |
---|
| 623 | |
---|
| 624 | v = SATnormalNode(v); |
---|
| 625 | |
---|
| 626 | if(flags(v) & mask) return; |
---|
| 627 | |
---|
| 628 | flags(v) |= mask; |
---|
| 629 | |
---|
| 630 | if((flags(v)&StateBitMask)&& |
---|
| 631 | !(flags(v)&VisibleVarMask)&& |
---|
| 632 | (bAig_Class(v)>0)){ |
---|
| 633 | |
---|
| 634 | return; |
---|
| 635 | } |
---|
| 636 | |
---|
| 637 | PureSat_MarkTransitiveFaninForNode4(manager, leftChild(v), mask,bound); |
---|
| 638 | PureSat_MarkTransitiveFaninForNode4(manager, rightChild(v), mask,bound); |
---|
| 639 | } |
---|
| 640 | |
---|
| 641 | /**Function******************************************************************** |
---|
| 642 | |
---|
| 643 | Synopsis [Mark transitive fanin for an array of aig nodes] |
---|
| 644 | |
---|
| 645 | Description [Mark transitive fanin for an array of aig nodes] |
---|
| 646 | |
---|
| 647 | SideEffects [] |
---|
| 648 | |
---|
| 649 | SeeAlso [] |
---|
| 650 | |
---|
| 651 | ******************************************************************************/ |
---|
| 652 | |
---|
| 653 | void PureSat_MarkTransitiveFaninForArray4( |
---|
| 654 | mAig_Manager_t *manager, |
---|
| 655 | satArray_t *arr, |
---|
| 656 | unsigned int mask, |
---|
| 657 | int bound) |
---|
| 658 | { |
---|
| 659 | bAigEdge_t v; |
---|
| 660 | int i, size; |
---|
| 661 | |
---|
| 662 | if(arr == 0) return; |
---|
| 663 | size = arr->num; |
---|
| 664 | |
---|
| 665 | for(i=0; i<size; i++) { |
---|
| 666 | v = arr->space[i]; |
---|
| 667 | |
---|
| 668 | v = SATnormalNode(v); |
---|
| 669 | PureSat_MarkTransitiveFaninForNode4(manager,v,mask,bound); |
---|
| 670 | |
---|
| 671 | } |
---|
| 672 | } |
---|
| 673 | |
---|
| 674 | /**Function******************************************************************** |
---|
| 675 | |
---|
| 676 | Synopsis [clean a certain mask for all the aig nodes] |
---|
| 677 | |
---|
| 678 | Description [clean a certain mask for all the aig nodes] |
---|
| 679 | |
---|
| 680 | SideEffects [] |
---|
| 681 | |
---|
| 682 | SeeAlso [] |
---|
| 683 | |
---|
| 684 | ******************************************************************************/ |
---|
| 685 | |
---|
| 686 | |
---|
| 687 | |
---|
| 688 | void PureSat_CleanMask(mAig_Manager_t *manager, |
---|
| 689 | unsigned int mask) |
---|
| 690 | { |
---|
| 691 | bAigEdge_t i; |
---|
| 692 | |
---|
| 693 | for(i=bAigNodeSize; i<manager->nodesArraySize;i+=bAigNodeSize) |
---|
| 694 | flags(i)&=mask; |
---|
| 695 | |
---|
| 696 | } |
---|
| 697 | |
---|
| 698 | /**Function******************************************************************** |
---|
| 699 | |
---|
| 700 | Synopsis [Set COI mask for SAT solver] |
---|
| 701 | |
---|
| 702 | Description [Set COI mask for SAT solver] |
---|
| 703 | |
---|
| 704 | SideEffects [] |
---|
| 705 | |
---|
| 706 | SeeAlso [] |
---|
| 707 | |
---|
| 708 | ******************************************************************************/ |
---|
| 709 | |
---|
| 710 | |
---|
| 711 | void PureSat_SetCOI(satManager_t *cm) |
---|
| 712 | { |
---|
| 713 | |
---|
| 714 | PureSat_MarkTransitiveFaninForArray(cm, cm->auxObj, CoiMask); |
---|
| 715 | PureSat_MarkTransitiveFaninForArray(cm, cm->obj, CoiMask); |
---|
| 716 | PureSat_MarkTransitiveFaninForArray(cm, cm->assertArray, CoiMask); |
---|
| 717 | |
---|
| 718 | } |
---|
| 719 | |
---|
| 720 | |
---|
| 721 | /**Function******************************************************************** |
---|
| 722 | |
---|
| 723 | Synopsis [Reset COI mask for all nodes] |
---|
| 724 | |
---|
| 725 | Description [Reset COI mask for all nodes] |
---|
| 726 | |
---|
| 727 | SideEffects [] |
---|
| 728 | |
---|
| 729 | SeeAlso [] |
---|
| 730 | |
---|
| 731 | ******************************************************************************/ |
---|
| 732 | |
---|
| 733 | void PureSat_ResetCoi(satManager_t *cm) |
---|
| 734 | { |
---|
| 735 | bAigEdge_t i; |
---|
| 736 | for(i=satNodeSize;i<cm->nodesArraySize;i+=satNodeSize){ |
---|
| 737 | if(SATflags(i) & CoiMask) |
---|
| 738 | SATflags(i) &= ResetCoiMask; |
---|
| 739 | } |
---|
| 740 | } |
---|
| 741 | |
---|
| 742 | /**Function******************************************************************** |
---|
| 743 | |
---|
| 744 | Synopsis [Set COI for latch nodes] |
---|
| 745 | |
---|
| 746 | Description [Set COI for latch nodes] |
---|
| 747 | |
---|
| 748 | SideEffects [] |
---|
| 749 | |
---|
| 750 | SeeAlso [] |
---|
| 751 | |
---|
| 752 | ******************************************************************************/ |
---|
| 753 | |
---|
| 754 | void PureSatSetLatchCOI(Ntk_Network_t * network, |
---|
| 755 | PureSat_Manager_t *pm, |
---|
| 756 | satManager_t * cm, |
---|
| 757 | /*deletable*/ |
---|
| 758 | st_table * AbsTable, |
---|
| 759 | int from, |
---|
| 760 | int to) |
---|
| 761 | { |
---|
| 762 | |
---|
| 763 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 764 | |
---|
| 765 | bAigTimeFrame_t *tf = manager->timeframeWOI; |
---|
| 766 | int i,j; |
---|
| 767 | bAigEdge_t *L0,*L1,*bL0,*bL1; |
---|
| 768 | satArray_t * assert; |
---|
| 769 | int nLatches = tf->nLatches, nbLatches = tf->nbLatches; |
---|
| 770 | |
---|
| 771 | if(from>=to) return; |
---|
| 772 | |
---|
| 773 | PureSat_ResetCoi(cm); |
---|
| 774 | |
---|
| 775 | assert = sat_ArrayAlloc(1); |
---|
| 776 | sat_ArrayInsert(assert,manager->InitState); |
---|
| 777 | PureSat_MarkTransitiveFaninForArray3(manager,assert,CoiMask); |
---|
| 778 | sat_ArrayFree(assert); |
---|
| 779 | |
---|
| 780 | for(i=from; i<to; i++){ |
---|
| 781 | assert = sat_ArrayAlloc(1); |
---|
| 782 | |
---|
| 783 | L0 = tf->latchInputs[i]; |
---|
| 784 | L1 = tf->latchInputs[i+1]; |
---|
| 785 | bL0 = tf->blatchInputs[i]; |
---|
| 786 | bL1 = tf->blatchInputs[i+1]; |
---|
| 787 | |
---|
| 788 | for(j=0;j<nLatches;j++){ |
---|
| 789 | if(L1[j]!=bAig_One&&L1[j]!=bAig_Zero){ |
---|
| 790 | if(flags(L1[j])&VisibleVarMask) |
---|
| 791 | sat_ArrayInsert(assert,L1[j]); |
---|
| 792 | } |
---|
| 793 | if(L0[j]!=bAig_One&&L0[j]!=bAig_Zero&& |
---|
| 794 | !(flags(L0[j])&VisibleVarMask)) |
---|
| 795 | flags(L0[j]) |= Visited3Mask; |
---|
| 796 | } |
---|
| 797 | |
---|
| 798 | for(j=0;j<nbLatches;j++){ |
---|
| 799 | if(bL1[j]!=bAig_One&&bL1[j]!=bAig_Zero){ |
---|
| 800 | if(flags(bL1[j])&VisibleVarMask) |
---|
| 801 | sat_ArrayInsert(assert,bL1[j]); |
---|
| 802 | } |
---|
| 803 | if(bL0[j]!=bAig_One&&bL0[j]!=bAig_Zero&& |
---|
| 804 | !(flags(bL0[j])&VisibleVarMask)) |
---|
| 805 | flags(bL0[j]) |= Visited3Mask; |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | PureSat_MarkTransitiveFaninForArray2(manager,assert,CoiMask); |
---|
| 809 | sat_ArrayFree(assert); |
---|
| 810 | } |
---|
| 811 | |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | /**Function******************************************************************** |
---|
| 815 | |
---|
| 816 | Synopsis [Set COI for latch nodes] |
---|
| 817 | |
---|
| 818 | Description [Set COI for latch nodes] |
---|
| 819 | |
---|
| 820 | SideEffects [] |
---|
| 821 | |
---|
| 822 | SeeAlso [] |
---|
| 823 | |
---|
| 824 | ******************************************************************************/ |
---|
| 825 | |
---|
| 826 | |
---|
| 827 | void PureSatSetLatchCOI2(Ntk_Network_t * network, |
---|
| 828 | PureSat_Manager_t *pm, |
---|
| 829 | satManager_t * cm, |
---|
| 830 | bAigEdge_t obj, |
---|
| 831 | int bound) |
---|
| 832 | { |
---|
| 833 | |
---|
| 834 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 835 | satArray_t * assert; |
---|
| 836 | |
---|
| 837 | PureSat_ResetCoi(cm); |
---|
| 838 | |
---|
| 839 | assert = sat_ArrayAlloc(1); |
---|
| 840 | sat_ArrayInsert(assert,obj); |
---|
| 841 | PureSat_MarkTransitiveFaninForArray4(manager,assert,CoiMask,bound); |
---|
| 842 | PureSat_MarkTransitiveFaninForArray4(manager,cm->assertArray,CoiMask,bound); |
---|
| 843 | sat_ArrayFree(assert); |
---|
| 844 | |
---|
| 845 | } |
---|
| 846 | |
---|
| 847 | /**Function******************************************************************** |
---|
| 848 | |
---|
| 849 | Synopsis [Set COI for form the SAT problem] |
---|
| 850 | |
---|
| 851 | Description [Set COI for form the SAT problem] |
---|
| 852 | |
---|
| 853 | SideEffects [] |
---|
| 854 | |
---|
| 855 | SeeAlso [] |
---|
| 856 | |
---|
| 857 | ******************************************************************************/ |
---|
| 858 | |
---|
| 859 | void PureSatSetCOI(Ntk_Network_t * network, |
---|
| 860 | PureSat_Manager_t *pm, |
---|
| 861 | satManager_t * cm, |
---|
| 862 | st_table * AbsTable, |
---|
| 863 | int from, |
---|
| 864 | int to, |
---|
| 865 | int bound) |
---|
| 866 | { |
---|
| 867 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 868 | bAigEdge_t property; |
---|
| 869 | |
---|
| 870 | if(cm->obj->num>0){ |
---|
| 871 | property = cm->obj->space[0]; |
---|
| 872 | PureSatSetLatchCOI2(network,pm,cm,property,bound); |
---|
| 873 | } |
---|
| 874 | else{ |
---|
| 875 | PureSatSetLatchCOI(network,pm,cm,AbsTable,from,to); |
---|
| 876 | PureSat_CleanMask(manager,ResetVisited3Mask); |
---|
| 877 | } |
---|
| 878 | |
---|
| 879 | |
---|
| 880 | } |
---|
| 881 | |
---|
| 882 | /**Function******************************************************************** |
---|
| 883 | |
---|
| 884 | Synopsis [Build abstraction from concrete model] |
---|
| 885 | |
---|
| 886 | Description [Build abstraction from concrete model] |
---|
| 887 | |
---|
| 888 | SideEffects [] |
---|
| 889 | |
---|
| 890 | SeeAlso [] |
---|
| 891 | |
---|
| 892 | ******************************************************************************/ |
---|
| 893 | |
---|
| 894 | void PureSatAbstractLatch(bAig_Manager_t *manager, |
---|
| 895 | bAigEdge_t v, |
---|
| 896 | st_table * tmpTable) |
---|
| 897 | { |
---|
| 898 | bAigEdge_t nv; |
---|
| 899 | |
---|
| 900 | /*fanin: set left and right to bAig_NULL*/ |
---|
| 901 | nv = bAig_NonInvertedEdge(v); |
---|
| 902 | |
---|
| 903 | if(leftChild(nv)!=bAig_NULL){ |
---|
| 904 | if(!(flags(leftChild(nv))&CoiMask)) |
---|
| 905 | flags(leftChild(nv)) |= Visited3Mask; |
---|
| 906 | manager->NodesArray[nv+bAigLeft]=bAig_NULL; |
---|
| 907 | } |
---|
| 908 | |
---|
| 909 | if(rightChild(nv)!=bAig_NULL){ |
---|
| 910 | if(!(flags(rightChild(nv))&CoiMask)) |
---|
| 911 | flags(rightChild(nv)) |= Visited3Mask; |
---|
| 912 | manager->NodesArray[nv+bAigRight]=bAig_NULL; |
---|
| 913 | } |
---|
| 914 | |
---|
| 915 | } |
---|
| 916 | |
---|
| 917 | /**Function******************************************************************** |
---|
| 918 | |
---|
| 919 | Synopsis [Kill all pseudo global variables for one node for interpolation computation] |
---|
| 920 | |
---|
| 921 | Description [Kill all pseudo global variables for one node for interpolation computation] |
---|
| 922 | |
---|
| 923 | SideEffects [] |
---|
| 924 | |
---|
| 925 | SeeAlso [] |
---|
| 926 | |
---|
| 927 | ******************************************************************************/ |
---|
| 928 | |
---|
| 929 | void PureSatKillPseudoGVNode(bAig_Manager_t *manager, |
---|
| 930 | bAigEdge_t v, |
---|
| 931 | st_table * tmpTable) |
---|
| 932 | { |
---|
| 933 | long size = nFanout(v),i,inv=0; |
---|
| 934 | bAigEdge_t v1,v2,nv; |
---|
| 935 | bAigEdge_t * fan = (bAigEdge_t *)fanout(v),left; |
---|
| 936 | |
---|
| 937 | /*fanin: set left and right to bAig_NULL*/ |
---|
| 938 | nv = bAig_NonInvertedEdge(v); |
---|
| 939 | flags(nv) |= PGVMask; |
---|
| 940 | |
---|
| 941 | if(leftChild(nv)!=bAig_NULL){ |
---|
| 942 | if(!(flags(leftChild(nv))&CoiMask)) |
---|
| 943 | flags(leftChild(nv)) |= Visited3Mask; |
---|
| 944 | manager->NodesArray[nv+bAigLeft]=bAig_NULL; |
---|
| 945 | } |
---|
| 946 | |
---|
| 947 | if(rightChild(nv)!=bAig_NULL){ |
---|
| 948 | if(!(flags(rightChild(nv))&CoiMask)) |
---|
| 949 | flags(rightChild(nv)) |= Visited3Mask; |
---|
| 950 | manager->NodesArray[nv+bAigRight]=bAig_NULL; |
---|
| 951 | } |
---|
| 952 | |
---|
| 953 | |
---|
| 954 | manager->class_ = 2; |
---|
| 955 | |
---|
| 956 | /*fanout: connection to vars in next tf is disconnected, and a new pseudo var |
---|
| 957 | is created, and used as a replacement*/ |
---|
| 958 | for(i=0;i<size;i++){ |
---|
| 959 | v1 = bAig_NonInvertedEdge(fan[i]>>1); |
---|
| 960 | if(!(flags(v1)&CoiMask)) |
---|
| 961 | continue; |
---|
| 962 | if(bAig_Class(v1)>1){ |
---|
| 963 | /*igonre invSV since its left and right will be processed to 2*/ |
---|
| 964 | if(!(flags(v1)&VisibleVarMask)&&(flags(v1)&StateBitMask)) |
---|
| 965 | continue; |
---|
| 966 | /*if nonSV, create new Node as replacement*/ |
---|
| 967 | if(!st_lookup(tmpTable,(char*)nv,&v2)){ |
---|
| 968 | v2 = bAig_CreateNode(manager,bAig_NULL, bAig_NULL); |
---|
| 969 | |
---|
| 970 | flags(v2) |= DummyMask; |
---|
| 971 | st_insert(tmpTable,(char*)nv,(char*)v2); |
---|
| 972 | } |
---|
| 973 | |
---|
| 974 | left = 1; |
---|
| 975 | if(bAig_IsInverted(fan[i])) |
---|
| 976 | left = 0; |
---|
| 977 | inv = bAig_IsInverted(fan[i]>>1)?1:0; |
---|
| 978 | v2 = inv ? bAig_Not(v2) : v2; |
---|
| 979 | if(left){ |
---|
| 980 | #if DBG |
---|
| 981 | assert(manager->NodesArray[v1+bAigLeft] != v2); |
---|
| 982 | #endif |
---|
| 983 | manager->NodesArray[v1+bAigLeft] = v2; |
---|
| 984 | PureSat_connectOutput(manager, v2, v1,0); |
---|
| 985 | flags(v2) |= CoiMask; |
---|
| 986 | } |
---|
| 987 | else{ |
---|
| 988 | #if DBG |
---|
| 989 | assert(manager->NodesArray[v1+bAigRight] != v2); |
---|
| 990 | #endif |
---|
| 991 | manager->NodesArray[v1+bAigRight] = v2; |
---|
| 992 | PureSat_connectOutput(manager, v2, v1,1); |
---|
| 993 | flags(v2) |= CoiMask; |
---|
| 994 | } |
---|
| 995 | } |
---|
| 996 | } |
---|
| 997 | |
---|
| 998 | } |
---|
| 999 | |
---|
| 1000 | |
---|
| 1001 | /**Function******************************************************************** |
---|
| 1002 | |
---|
| 1003 | Synopsis [Kill all pseudo global variables for interpolation computation] |
---|
| 1004 | |
---|
| 1005 | Description [Kill all pseudo global variables for interpolation computation] |
---|
| 1006 | |
---|
| 1007 | SideEffects [] |
---|
| 1008 | |
---|
| 1009 | SeeAlso [] |
---|
| 1010 | |
---|
| 1011 | ******************************************************************************/ |
---|
| 1012 | |
---|
| 1013 | void PureSatKillPseudoGV(Ntk_Network_t * network, |
---|
| 1014 | PureSat_Manager_t *pm, |
---|
| 1015 | st_table * AbsTable, |
---|
| 1016 | int from, |
---|
| 1017 | int to) |
---|
| 1018 | { |
---|
| 1019 | bAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 1020 | bAigTimeFrame_t *tf = manager->timeframeWOI; |
---|
| 1021 | array_t *bVarList,*mVarList; |
---|
| 1022 | bAigEdge_t * li, *bli,node; |
---|
| 1023 | int i,j; |
---|
| 1024 | st_table * tmpTable, *DoneTable; |
---|
| 1025 | |
---|
| 1026 | |
---|
| 1027 | pm->oldPos = manager->nodesArraySize-bAigNodeSize; |
---|
| 1028 | |
---|
| 1029 | bVarList = mAigReadBinVarList(manager); |
---|
| 1030 | mVarList = mAigReadMulVarList(manager); |
---|
| 1031 | |
---|
| 1032 | if(from < 1) |
---|
| 1033 | from = 1; |
---|
| 1034 | |
---|
| 1035 | if(to>pm->Length) |
---|
| 1036 | to=pm->Length; |
---|
| 1037 | |
---|
| 1038 | li = tf->latchInputs[1]; |
---|
| 1039 | bli = tf->blatchInputs[1]; |
---|
| 1040 | for(j=0;j<tf->nLatches;j++) |
---|
| 1041 | flags(li[j])&=ResetPGVMask; |
---|
| 1042 | for(j=0;j<tf->nbLatches;j++) |
---|
| 1043 | flags(bli[j])&=ResetPGVMask; |
---|
| 1044 | |
---|
| 1045 | for(i=from;i<=to;i++){ |
---|
| 1046 | li = tf->latchInputs[i]; |
---|
| 1047 | bli = tf->blatchInputs[i]; |
---|
| 1048 | manager->class_ = i; |
---|
| 1049 | tmpTable = st_init_table(st_numcmp,st_numhash); |
---|
| 1050 | DoneTable = st_init_table(st_numcmp,st_numhash); |
---|
| 1051 | |
---|
| 1052 | for(j=0; j<tf->nLatches; j++){ |
---|
| 1053 | node = bAig_NonInvertedEdge(li[j]); |
---|
| 1054 | if(st_lookup(DoneTable,(char*)node,NIL(char*))) |
---|
| 1055 | continue; |
---|
| 1056 | st_insert(DoneTable,(char*)node,(char*)0); |
---|
| 1057 | if((flags(node)&StateBitMask)&& |
---|
| 1058 | !(flags(node)&VisibleVarMask)&& |
---|
| 1059 | (flags(node)&CoiMask)){ |
---|
| 1060 | if(i==1) |
---|
| 1061 | PureSatKillPseudoGVNode(manager,node,tmpTable); |
---|
| 1062 | else |
---|
| 1063 | PureSatAbstractLatch(manager,node,tmpTable); |
---|
| 1064 | } |
---|
| 1065 | } |
---|
| 1066 | |
---|
| 1067 | for(j=0; j<tf->nbLatches; j++){ |
---|
| 1068 | node = bAig_NonInvertedEdge(bli[j]); |
---|
| 1069 | if(st_lookup(DoneTable,(char*)node,NIL(char*))) |
---|
| 1070 | continue; |
---|
| 1071 | st_insert(DoneTable,(char*)node,(char*)0); |
---|
| 1072 | if((flags(node)&StateBitMask)&& |
---|
| 1073 | !(flags(node)&VisibleVarMask)&& |
---|
| 1074 | (flags(node)&CoiMask)){ |
---|
| 1075 | if(i==1) |
---|
| 1076 | PureSatKillPseudoGVNode(manager,node,tmpTable); |
---|
| 1077 | else |
---|
| 1078 | PureSatAbstractLatch(manager,node,tmpTable); |
---|
| 1079 | } |
---|
| 1080 | } |
---|
| 1081 | st_free_table(tmpTable); |
---|
| 1082 | st_free_table(DoneTable); |
---|
| 1083 | } |
---|
| 1084 | } |
---|
| 1085 | |
---|
| 1086 | |
---|
| 1087 | /**Function******************************************************************** |
---|
| 1088 | |
---|
| 1089 | Synopsis [Count number of nodes in COI] |
---|
| 1090 | |
---|
| 1091 | Description [Count number of nodes in COI] |
---|
| 1092 | |
---|
| 1093 | SideEffects [] |
---|
| 1094 | |
---|
| 1095 | SeeAlso [] |
---|
| 1096 | |
---|
| 1097 | ******************************************************************************/ |
---|
| 1098 | |
---|
| 1099 | |
---|
| 1100 | int PureSat_CountNodesInCoi(satManager_t* cm) |
---|
| 1101 | { |
---|
| 1102 | int ct=0; |
---|
| 1103 | bAigEdge_t i; |
---|
| 1104 | |
---|
| 1105 | for(i=satNodeSize;i<cm->nodesArraySize;i+=satNodeSize){ |
---|
| 1106 | if(SATflags(i) & CoiMask){ |
---|
| 1107 | ct++; |
---|
| 1108 | |
---|
| 1109 | } |
---|
| 1110 | } |
---|
| 1111 | /*fprintf(vis_stdout,"There are %d node in COI\n",ct);*/ |
---|
| 1112 | return ct; |
---|
| 1113 | } |
---|
| 1114 | |
---|
| 1115 | /**Function******************************************************************** |
---|
| 1116 | |
---|
| 1117 | Synopsis [Sanity check for one node for abstraction processsing] |
---|
| 1118 | |
---|
| 1119 | Description [Sanity check for one node for abstraction processsing] |
---|
| 1120 | |
---|
| 1121 | SideEffects [] |
---|
| 1122 | |
---|
| 1123 | SeeAlso [] |
---|
| 1124 | |
---|
| 1125 | ******************************************************************************/ |
---|
| 1126 | |
---|
| 1127 | |
---|
| 1128 | void PureSat_Check(bAig_Manager_t *manager, bAigEdge_t v) |
---|
| 1129 | { |
---|
| 1130 | bAigEdge_t *fan,*fan1,nfan1; |
---|
| 1131 | bAigEdge_t nfan,cur,child,tmpchild,v1,other,cur1; |
---|
| 1132 | int size,i,j,find=0,inver,left,left1; |
---|
| 1133 | |
---|
| 1134 | nfan = nFanout(v); |
---|
| 1135 | fan = (bAigEdge_t *)fanout(v); |
---|
| 1136 | if(fan == 0){ |
---|
| 1137 | assert(nfan==0); |
---|
| 1138 | return; |
---|
| 1139 | } |
---|
| 1140 | |
---|
| 1141 | size = 0; |
---|
| 1142 | |
---|
| 1143 | for(i=0; fan[i]!=0; i++){ |
---|
| 1144 | size++; |
---|
| 1145 | cur = fan[i]; |
---|
| 1146 | left = 1; |
---|
| 1147 | inver = 0; |
---|
| 1148 | if(SATisInverted(cur)) |
---|
| 1149 | left = 0; |
---|
| 1150 | cur >>= 1; |
---|
| 1151 | if(SATisInverted(cur)) |
---|
| 1152 | inver = 1; |
---|
| 1153 | cur = SATnormalNode(cur); |
---|
| 1154 | child = inver? SATnormalNode(v)+1:SATnormalNode(v); |
---|
| 1155 | if(left) |
---|
| 1156 | tmpchild = leftChild(cur); |
---|
| 1157 | else |
---|
| 1158 | tmpchild = rightChild(cur); |
---|
| 1159 | assert(tmpchild == child); |
---|
| 1160 | |
---|
| 1161 | /*check the other child*/ |
---|
| 1162 | find = 0; |
---|
| 1163 | other = left?rightChild(cur):leftChild(cur); |
---|
| 1164 | assert(other!=bAig_NULL); |
---|
| 1165 | v1 = SATnormalNode(other); |
---|
| 1166 | nfan1 = nFanout(v1); |
---|
| 1167 | fan1 = (bAigEdge_t *)fanout(v1); |
---|
| 1168 | assert(nfan1!=0&&fan1!=0); |
---|
| 1169 | for(j=0; fan1[j]!=0; j++){ |
---|
| 1170 | cur1 = fan1[j]; |
---|
| 1171 | left1 = 1; |
---|
| 1172 | if(SATisInverted(cur1)) |
---|
| 1173 | left1 = 0; |
---|
| 1174 | assert(j<nfan1); |
---|
| 1175 | if((SATnormalNode(cur1>>1)==cur)&&(left1!=left)){ |
---|
| 1176 | find = 1; |
---|
| 1177 | |
---|
| 1178 | break; |
---|
| 1179 | } |
---|
| 1180 | } |
---|
| 1181 | assert(find); |
---|
| 1182 | } |
---|
| 1183 | |
---|
| 1184 | assert(nfan==size); |
---|
| 1185 | } |
---|
| 1186 | |
---|
| 1187 | |
---|
| 1188 | /**Function******************************************************************** |
---|
| 1189 | |
---|
| 1190 | Synopsis [Sanity check for abstraction processsing] |
---|
| 1191 | |
---|
| 1192 | Description [Sanity check for abstraction processsing] |
---|
| 1193 | |
---|
| 1194 | SideEffects [] |
---|
| 1195 | |
---|
| 1196 | SeeAlso [] |
---|
| 1197 | |
---|
| 1198 | ******************************************************************************/ |
---|
| 1199 | |
---|
| 1200 | |
---|
| 1201 | void PureSat_CheckFanoutFanin(bAig_Manager_t *manager) |
---|
| 1202 | { |
---|
| 1203 | bAigEdge_t i,v; |
---|
| 1204 | |
---|
| 1205 | for(i=bAigNodeSize;i<manager->nodesArraySize;i+=bAigNodeSize){ |
---|
| 1206 | v = i; |
---|
| 1207 | if((flags(v) & IsCNFMask)) |
---|
| 1208 | continue; |
---|
| 1209 | PureSat_Check(manager,v); |
---|
| 1210 | } |
---|
| 1211 | } |
---|
| 1212 | |
---|
| 1213 | /**Function******************************************************************** |
---|
| 1214 | |
---|
| 1215 | Synopsis [Reset a sat manager] |
---|
| 1216 | |
---|
| 1217 | Description [Reset a sat manager] |
---|
| 1218 | |
---|
| 1219 | SideEffects [] |
---|
| 1220 | |
---|
| 1221 | SeeAlso [] |
---|
| 1222 | |
---|
| 1223 | ******************************************************************************/ |
---|
| 1224 | |
---|
| 1225 | /*1. eliminate concls, 2. free variableArray |
---|
| 1226 | 3. adjust nodeArray(size and new nodes)*/ |
---|
| 1227 | void PureSat_ResetManager(mAig_Manager_t *manager, |
---|
| 1228 | satManager_t *cm, int clean) |
---|
| 1229 | { |
---|
| 1230 | |
---|
| 1231 | int i; |
---|
| 1232 | satVariable_t var; |
---|
| 1233 | satLevel_t *d; |
---|
| 1234 | |
---|
| 1235 | if(cm->variableArray) { |
---|
| 1236 | for(i=0; i<cm->initNumVariables; i++) { |
---|
| 1237 | var = cm->variableArray[i]; |
---|
| 1238 | if(var.wl[0]) { |
---|
| 1239 | sat_ArrayFree(var.wl[0]); |
---|
| 1240 | var.wl[0] = 0; |
---|
| 1241 | } |
---|
| 1242 | if(var.wl[1]) { |
---|
| 1243 | sat_ArrayFree(var.wl[1]); |
---|
| 1244 | var.wl[1] = 0; |
---|
| 1245 | } |
---|
| 1246 | } |
---|
| 1247 | free(cm->variableArray); |
---|
| 1248 | cm->variableArray = 0; |
---|
| 1249 | } |
---|
| 1250 | |
---|
| 1251 | if(cm->decisionHead) { |
---|
| 1252 | for(i=0; i<cm->decisionHeadSize; i++) { |
---|
| 1253 | d = &(cm->decisionHead[i]); |
---|
| 1254 | if(d->implied) |
---|
| 1255 | sat_ArrayFree(d->implied); |
---|
| 1256 | if(d->satisfied) |
---|
| 1257 | sat_ArrayFree(d->satisfied); |
---|
| 1258 | } |
---|
| 1259 | free(cm->decisionHead); |
---|
| 1260 | cm->decisionHead = 0; |
---|
| 1261 | cm->decisionHeadSize = 0; |
---|
| 1262 | cm->currentDecision = 0; |
---|
| 1263 | } |
---|
| 1264 | |
---|
| 1265 | if(cm->literals){ |
---|
| 1266 | sat_FreeLiteralsDB(cm->literals); |
---|
| 1267 | cm->literals=0; |
---|
| 1268 | sat_AllocLiteralsDB(cm); |
---|
| 1269 | } |
---|
| 1270 | if(cm->each){ |
---|
| 1271 | FREE(cm->each); |
---|
| 1272 | cm->each = sat_InitStatistics(); |
---|
| 1273 | } |
---|
| 1274 | |
---|
| 1275 | if(cm->queue) sat_FreeQueue(cm->queue); |
---|
| 1276 | if(cm->BDDQueue) sat_FreeQueue(cm->BDDQueue); |
---|
| 1277 | if(cm->unusedAigQueue)sat_FreeQueue(cm->unusedAigQueue); |
---|
| 1278 | cm->queue = 0; |
---|
| 1279 | cm->BDDQueue = 0; |
---|
| 1280 | cm->unusedAigQueue = 0; |
---|
| 1281 | |
---|
| 1282 | |
---|
| 1283 | if(cm->nonobjUnitLitArray) sat_ArrayFree(cm->nonobjUnitLitArray); |
---|
| 1284 | if(cm->objUnitLitArray) sat_ArrayFree(cm->objUnitLitArray); |
---|
| 1285 | if(cm->orderedVariableArray) sat_ArrayFree(cm->orderedVariableArray); |
---|
| 1286 | if(cm->dormantConflictArray) sat_ArrayFree(cm->dormantConflictArray); |
---|
| 1287 | if(cm->shrinkArray) sat_ArrayFree(cm->shrinkArray); |
---|
| 1288 | |
---|
| 1289 | cm->nonobjUnitLitArray = 0; |
---|
| 1290 | cm->objUnitLitArray = 0; |
---|
| 1291 | cm->orderedVariableArray = 0; |
---|
| 1292 | cm->dormantConflictArray = 0; |
---|
| 1293 | cm->shrinkArray = 0; |
---|
| 1294 | |
---|
| 1295 | /*change initNumVariable after cm->variableArray has been freed, |
---|
| 1296 | otherwise, initNumVariable may change*/ |
---|
| 1297 | cm->nodesArray = manager->NodesArray; |
---|
| 1298 | cm->nodesArraySize = manager->nodesArraySize; |
---|
| 1299 | cm->initNodesArraySize = manager->nodesArraySize; |
---|
| 1300 | cm->maxNodesArraySize = manager->maxNodesArraySize; |
---|
| 1301 | cm->initNumVariables = (manager->nodesArraySize/bAigNodeSize)-1; |
---|
| 1302 | cm->initNumClauses = 0; |
---|
| 1303 | cm->initNumLiterals = 0; |
---|
| 1304 | |
---|
| 1305 | cm->ipm = manager->ipm; |
---|
| 1306 | cm->assertArray = manager->assertArray; |
---|
| 1307 | cm->assertArray2 = manager->assertArray2; |
---|
| 1308 | cm->InitState = manager->InitState; |
---|
| 1309 | cm->CoiAssertArray = manager->CoiAssertArray; |
---|
| 1310 | cm->EqArray = manager->EqArray; |
---|
| 1311 | |
---|
| 1312 | cm->currentVarPos = 0; |
---|
| 1313 | cm->currentTopConflict = 0; |
---|
| 1314 | cm->currentTopConflictCount = 0; |
---|
| 1315 | cm->lowestBacktrackLevel = 0; |
---|
| 1316 | cm->implicatedSoFar = 0; |
---|
| 1317 | //cm->status = 0; |
---|
| 1318 | |
---|
| 1319 | if(clean){ |
---|
| 1320 | for(i=bAigNodeSize;i<cm->nodesArraySize;i+=bAigNodeSize) |
---|
| 1321 | cm->nodesArray[i] = 2; |
---|
| 1322 | } |
---|
| 1323 | } |
---|
| 1324 | |
---|
| 1325 | |
---|
| 1326 | /**Function******************************************************************** |
---|
| 1327 | |
---|
| 1328 | Synopsis [Restore AIG to get rid of Dummy nodes] |
---|
| 1329 | |
---|
| 1330 | Description [Restore AIG to get rid of Dummy nodes] |
---|
| 1331 | |
---|
| 1332 | SideEffects [] |
---|
| 1333 | |
---|
| 1334 | SeeAlso [] |
---|
| 1335 | |
---|
| 1336 | ******************************************************************************/ |
---|
| 1337 | |
---|
| 1338 | void PureSat_RestoreAigForDummyNode(mAig_Manager_t *manager, |
---|
| 1339 | int oldPosition) |
---|
| 1340 | { |
---|
| 1341 | |
---|
| 1342 | bAigEdge_t i; |
---|
| 1343 | |
---|
| 1344 | for(i=manager->nodesArraySize-bAigNodeSize; |
---|
| 1345 | i>oldPosition;i=i-bAigNodeSize){ |
---|
| 1346 | #if DBG |
---|
| 1347 | assert(leftChild(i)==bAig_NULL&& |
---|
| 1348 | rightChild(i)==bAig_NULL); |
---|
| 1349 | assert(flags(i)&DummyMask); |
---|
| 1350 | #endif |
---|
| 1351 | FREE(fanout(i)); |
---|
| 1352 | } |
---|
| 1353 | |
---|
| 1354 | manager->nodesArraySize = oldPosition+bAigNodeSize; |
---|
| 1355 | |
---|
| 1356 | return; |
---|
| 1357 | |
---|
| 1358 | } |
---|
| 1359 | |
---|
| 1360 | /**Function******************************************************************** |
---|
| 1361 | |
---|
| 1362 | Synopsis [Process fanout nodes to generate abstraction] |
---|
| 1363 | |
---|
| 1364 | Description [Process fanout nodes to generate abstraction] |
---|
| 1365 | |
---|
| 1366 | SideEffects [] |
---|
| 1367 | |
---|
| 1368 | SeeAlso [] |
---|
| 1369 | |
---|
| 1370 | ******************************************************************************/ |
---|
| 1371 | |
---|
| 1372 | /*after this funct, all nodes' fanout, either COI or not |
---|
| 1373 | are in COI, not InvSV, and if this node is InvSV, not to a node in the next tf*/ |
---|
| 1374 | void PureSatProcessFanout(satManager_t * cm) |
---|
| 1375 | { |
---|
| 1376 | |
---|
| 1377 | long bufSize, bufIndex; |
---|
| 1378 | bAigEdge_t *buf,left,right,*fan,v,cur; |
---|
| 1379 | int i, j; |
---|
| 1380 | long size, tsize; |
---|
| 1381 | |
---|
| 1382 | int InvStateVar,l; |
---|
| 1383 | |
---|
| 1384 | |
---|
| 1385 | bufSize = 1024; |
---|
| 1386 | bufIndex = 0; |
---|
| 1387 | buf = malloc(sizeof(bAigEdge_t) * bufSize); |
---|
| 1388 | for(i=satNodeSize; i<cm->nodesArraySize; i+=satNodeSize) { |
---|
| 1389 | v = i; |
---|
| 1390 | |
---|
| 1391 | if(!(SATflags(v) & CoiMask)) |
---|
| 1392 | continue; |
---|
| 1393 | |
---|
| 1394 | InvStateVar = 0; |
---|
| 1395 | if((SATflags(v)&StateBitMask)&& |
---|
| 1396 | !(SATflags(v)&VisibleVarMask)) |
---|
| 1397 | InvStateVar = 1; |
---|
| 1398 | |
---|
| 1399 | size = SATnFanout(v); |
---|
| 1400 | if(size >= bufSize) { |
---|
| 1401 | bufSize <<= 1; |
---|
| 1402 | if(size >= bufSize) |
---|
| 1403 | bufSize = size + 1; |
---|
| 1404 | buf = realloc(buf, sizeof(bAigEdge_t) * bufSize); |
---|
| 1405 | } |
---|
| 1406 | |
---|
| 1407 | bufIndex = 0; |
---|
| 1408 | for(j=0, fan = SATfanout(v); j<size; j++) { |
---|
| 1409 | cur = fan[j]; |
---|
| 1410 | cur >>= 1; |
---|
| 1411 | cur = SATnormalNode(cur); |
---|
| 1412 | /*Not in COI , pass */ |
---|
| 1413 | if(!(SATflags(cur) & CoiMask)) |
---|
| 1414 | continue; |
---|
| 1415 | /*cur is invisible var*/ |
---|
| 1416 | left = SATleftChild(cur); |
---|
| 1417 | right = SATrightChild(cur); |
---|
| 1418 | if(left==bAig_NULL||right==bAig_NULL){ |
---|
| 1419 | #if DBG |
---|
| 1420 | |
---|
| 1421 | assert(left==bAig_NULL&&right==bAig_NULL); |
---|
| 1422 | assert((SATflags(cur)&StateBitMask)&& |
---|
| 1423 | !(SATflags(cur)&VisibleVarMask)); |
---|
| 1424 | #endif |
---|
| 1425 | continue; |
---|
| 1426 | } |
---|
| 1427 | /*v itself is InvStateVar and cur is not InvSV*/ |
---|
| 1428 | |
---|
| 1429 | if(SATflags(v)&PGVMask){ |
---|
| 1430 | |
---|
| 1431 | if(SATclass(cur)>=2){ |
---|
| 1432 | l = SATisInverted(fan[j]) ? 0 : 1; |
---|
| 1433 | if(l){ |
---|
| 1434 | #if DBG |
---|
| 1435 | bAigEdge_t v1 = SATnormalNode(SATleftChild(cur)); |
---|
| 1436 | assert(v1!=v); |
---|
| 1437 | assert(SATflags(v1)&DummyMask); |
---|
| 1438 | #endif |
---|
| 1439 | } |
---|
| 1440 | else{ |
---|
| 1441 | #if DBG |
---|
| 1442 | bAigEdge_t v1 = SATnormalNode(SATrightChild(cur)); |
---|
| 1443 | assert(v1!=v); |
---|
| 1444 | assert(SATflags(v1)&DummyMask); |
---|
| 1445 | #endif |
---|
| 1446 | } |
---|
| 1447 | continue; |
---|
| 1448 | } |
---|
| 1449 | } |
---|
| 1450 | buf[bufIndex++] = fan[j]; |
---|
| 1451 | } |
---|
| 1452 | |
---|
| 1453 | if(bufIndex > 0) { |
---|
| 1454 | tsize = bufIndex; |
---|
| 1455 | for(j=0, fan=SATfanout(v); j<size; j++) { |
---|
| 1456 | cur = fan[j]; |
---|
| 1457 | cur >>= 1; |
---|
| 1458 | cur = SATnormalNode(cur); |
---|
| 1459 | if(!(SATflags(cur) & CoiMask)) { |
---|
| 1460 | buf[bufIndex++] = fan[j]; |
---|
| 1461 | continue; |
---|
| 1462 | } |
---|
| 1463 | |
---|
| 1464 | left = SATleftChild(cur); |
---|
| 1465 | right = SATrightChild(cur); |
---|
| 1466 | |
---|
| 1467 | if(left==bAig_NULL||right==bAig_NULL){ |
---|
| 1468 | buf[bufIndex++] = fan[j]; |
---|
| 1469 | continue; |
---|
| 1470 | } |
---|
| 1471 | |
---|
| 1472 | |
---|
| 1473 | if(SATflags(v)&PGVMask){ |
---|
| 1474 | if(SATclass(cur)>=2){ |
---|
| 1475 | buf[bufIndex++] = fan[j]; |
---|
| 1476 | continue; |
---|
| 1477 | } |
---|
| 1478 | } |
---|
| 1479 | |
---|
| 1480 | }/*for(j=0, fan=SATfanout(v); j<size; j++) {*/ |
---|
| 1481 | buf[bufIndex] = 0; |
---|
| 1482 | memcpy(fan, buf, sizeof(bAigEdge_t)*(size+1)); |
---|
| 1483 | SATnFanout(v) = tsize; |
---|
| 1484 | } |
---|
| 1485 | else |
---|
| 1486 | SATnFanout(v) = 0; |
---|
| 1487 | } |
---|
| 1488 | |
---|
| 1489 | free(buf); |
---|
| 1490 | |
---|
| 1491 | for(i=satNodeSize; i<cm->nodesArraySize; i+=satNodeSize) { |
---|
| 1492 | v = i; |
---|
| 1493 | if(!(SATflags(v) & CoiMask)) |
---|
| 1494 | continue; |
---|
| 1495 | fan = SATfanout(v); |
---|
| 1496 | size = SATnFanout(v); |
---|
| 1497 | qsort(fan, size, sizeof(bAigEdge_t), NodeIndexCompare); |
---|
| 1498 | } |
---|
| 1499 | } |
---|
| 1500 | /**Function******************************************************************** |
---|
| 1501 | |
---|
| 1502 | Synopsis [Recover from abstractions] |
---|
| 1503 | |
---|
| 1504 | Description [Recover from abstractions] |
---|
| 1505 | |
---|
| 1506 | SideEffects [] |
---|
| 1507 | |
---|
| 1508 | SeeAlso [] |
---|
| 1509 | |
---|
| 1510 | ******************************************************************************/ |
---|
| 1511 | |
---|
| 1512 | long PureSatRecoverFanoutNode(satManager_t * cm, |
---|
| 1513 | bAigEdge_t v) |
---|
| 1514 | { |
---|
| 1515 | bAigEdge_t *fan,nfan,child,cur; |
---|
| 1516 | long i; |
---|
| 1517 | int left,inver; |
---|
| 1518 | int InvStateVar = 0; |
---|
| 1519 | |
---|
| 1520 | if(!(SATflags(v)&VisibleVarMask)&&(SATflags(v)&StateBitMask)) |
---|
| 1521 | InvStateVar = 1; |
---|
| 1522 | |
---|
| 1523 | nfan = SATnFanout(v); |
---|
| 1524 | |
---|
| 1525 | fan = SATfanout(v); |
---|
| 1526 | if(fan == 0) return(0); |
---|
| 1527 | |
---|
| 1528 | /*recover left and right children for latch nodes*/ |
---|
| 1529 | |
---|
| 1530 | for(i=nfan; fan[i]!=0; i++){ |
---|
| 1531 | cur = fan[i]; |
---|
| 1532 | if(!(SATflags(SATnormalNode(cur>>1))&CoiMask)) |
---|
| 1533 | continue; |
---|
| 1534 | /*cur is InvSV*/ |
---|
| 1535 | if((SATleftChild(SATnormalNode(cur>>1))==bAig_NULL)|| |
---|
| 1536 | (SATrightChild(SATnormalNode(cur>>1))==bAig_NULL)){ |
---|
| 1537 | #if DBG |
---|
| 1538 | assert((SATflags(SATnormalNode(cur>>1))&StateBitMask)&& |
---|
| 1539 | !(SATflags(SATnormalNode(cur>>1))&VisibleVarMask)); |
---|
| 1540 | #endif |
---|
| 1541 | left = 1; |
---|
| 1542 | inver = 0; |
---|
| 1543 | if(SATisInverted(cur)) |
---|
| 1544 | left = 0; |
---|
| 1545 | cur >>= 1; |
---|
| 1546 | if(SATisInverted(cur)) |
---|
| 1547 | inver = 1; |
---|
| 1548 | cur = SATnormalNode(cur); |
---|
| 1549 | child = inver? SATnormalNode(v)+1:SATnormalNode(v); |
---|
| 1550 | if(left) |
---|
| 1551 | SATleftChild(cur)=child; |
---|
| 1552 | else |
---|
| 1553 | SATrightChild(cur)=child; |
---|
| 1554 | continue; |
---|
| 1555 | } |
---|
| 1556 | |
---|
| 1557 | /*v is InvSV, cur is not InvSV*/ |
---|
| 1558 | |
---|
| 1559 | if(SATflags(v)&PGVMask){ |
---|
| 1560 | |
---|
| 1561 | if(SATclass(SATnormalNode(cur>>1))>=2){ |
---|
| 1562 | left = 1; |
---|
| 1563 | inver = 0; |
---|
| 1564 | if(SATisInverted(cur)) |
---|
| 1565 | left = 0; |
---|
| 1566 | cur >>= 1; |
---|
| 1567 | if(SATisInverted(cur)) |
---|
| 1568 | inver = 1; |
---|
| 1569 | cur = SATnormalNode(cur); |
---|
| 1570 | child = inver? SATnormalNode(v)+1:SATnormalNode(v); |
---|
| 1571 | if(left) |
---|
| 1572 | SATleftChild(cur)=child; |
---|
| 1573 | else |
---|
| 1574 | SATrightChild(cur)=child; |
---|
| 1575 | } |
---|
| 1576 | } |
---|
| 1577 | } |
---|
| 1578 | //recover all fanout |
---|
| 1579 | return(i); |
---|
| 1580 | } |
---|
| 1581 | |
---|
| 1582 | /**Function******************************************************************** |
---|
| 1583 | |
---|
| 1584 | Synopsis [Recover invisible state variable node] |
---|
| 1585 | |
---|
| 1586 | Description [Recover invisible state variable node] |
---|
| 1587 | |
---|
| 1588 | SideEffects [] |
---|
| 1589 | |
---|
| 1590 | SeeAlso [] |
---|
| 1591 | |
---|
| 1592 | ******************************************************************************/ |
---|
| 1593 | void |
---|
| 1594 | PureSatRecoverISVNode(satManager_t *cm, |
---|
| 1595 | bAigEdge_t v) |
---|
| 1596 | { |
---|
| 1597 | |
---|
| 1598 | bAigEdge_t size = SATnFanout(v),cur,node,child; |
---|
| 1599 | bAigEdge_t * fan = SATfanout(v); |
---|
| 1600 | int inv,i,left; |
---|
| 1601 | |
---|
| 1602 | for(i=0;i<size;i++){ |
---|
| 1603 | cur = fan[i]>>1; |
---|
| 1604 | node = SATnormalNode(cur); |
---|
| 1605 | /*not in coi*/ |
---|
| 1606 | if(!(SATflags(node)&CoiMask)) |
---|
| 1607 | continue; |
---|
| 1608 | /*not invisible var*/ |
---|
| 1609 | if(!((SATflags(node)&StateBitMask)&& |
---|
| 1610 | !(SATflags(node)&VisibleVarMask))) |
---|
| 1611 | continue; |
---|
| 1612 | |
---|
| 1613 | left=SATisInverted(fan[i])?0:1; |
---|
| 1614 | inv=SATisInverted(cur)?1:0; |
---|
| 1615 | child = inv?SATnormalNode(v)+1:SATnormalNode(v); |
---|
| 1616 | if(left) |
---|
| 1617 | SATleftChild(node) = child; |
---|
| 1618 | else |
---|
| 1619 | SATrightChild(node) = child; |
---|
| 1620 | } |
---|
| 1621 | } |
---|
| 1622 | |
---|
| 1623 | /**Function******************************************************************** |
---|
| 1624 | |
---|
| 1625 | Synopsis [Recover fanout of nodes] |
---|
| 1626 | |
---|
| 1627 | Description [Recover fanout of nodes] |
---|
| 1628 | |
---|
| 1629 | SideEffects [] |
---|
| 1630 | |
---|
| 1631 | SeeAlso [] |
---|
| 1632 | |
---|
| 1633 | ******************************************************************************/ |
---|
| 1634 | |
---|
| 1635 | void PureSatRecoverFanout(satManager_t * cm, |
---|
| 1636 | PureSat_Manager_t *pm) |
---|
| 1637 | { |
---|
| 1638 | bAigEdge_t i, v; |
---|
| 1639 | |
---|
| 1640 | /*dummy node can't be recovered*/ |
---|
| 1641 | for(i=satNodeSize; i<=pm->oldPos; i+=satNodeSize) { |
---|
| 1642 | v = i; |
---|
| 1643 | if(SATflags(v) & IsCNFMask) |
---|
| 1644 | continue; |
---|
| 1645 | |
---|
| 1646 | if((SATflags(v)&CoiMask)){ |
---|
| 1647 | SATnFanout(v) = PureSatRecoverFanoutNode(cm, v); |
---|
| 1648 | continue; |
---|
| 1649 | } |
---|
| 1650 | /*for some node not in coi, but a child of one coi(ISV) node*/ |
---|
| 1651 | if(SATflags(v)&Visited3Mask){ |
---|
| 1652 | PureSatRecoverISVNode(cm,v); |
---|
| 1653 | continue; |
---|
| 1654 | } |
---|
| 1655 | } |
---|
| 1656 | |
---|
| 1657 | } |
---|
| 1658 | |
---|
| 1659 | /**Function******************************************************************** |
---|
| 1660 | |
---|
| 1661 | Synopsis [sanity check for one node for abstraction processing] |
---|
| 1662 | |
---|
| 1663 | Description [sanity check for one node for abstraction processing] |
---|
| 1664 | |
---|
| 1665 | SideEffects [] |
---|
| 1666 | |
---|
| 1667 | SeeAlso [] |
---|
| 1668 | |
---|
| 1669 | ******************************************************************************/ |
---|
| 1670 | |
---|
| 1671 | void PureSatCheckCoiNode(bAig_Manager_t * manager, |
---|
| 1672 | bAigEdge_t node) |
---|
| 1673 | { |
---|
| 1674 | int i; |
---|
| 1675 | long *fan; |
---|
| 1676 | long nfan,child, cur; |
---|
| 1677 | int left,inv; |
---|
| 1678 | |
---|
| 1679 | nfan = nFanout(node); |
---|
| 1680 | fan = (bAigEdge_t*)fanout(node); |
---|
| 1681 | if(fan==0) return; |
---|
| 1682 | /*check child*/ |
---|
| 1683 | assert((leftChild(node)==bAig_NULL)|| |
---|
| 1684 | (flags(leftChild(node))&CoiMask)); |
---|
| 1685 | assert((rightChild(node)==bAig_NULL)|| |
---|
| 1686 | (flags(rightChild(node))&CoiMask)); |
---|
| 1687 | if((leftChild(node)==bAig_NULL)||(rightChild(node)==bAig_NULL)) |
---|
| 1688 | assert((leftChild(node)==bAig_NULL)&&(rightChild(node)==bAig_NULL)); |
---|
| 1689 | /*check fanout*/ |
---|
| 1690 | for(i=0; i<nfan; i++){ |
---|
| 1691 | cur = fan[i]>>1; |
---|
| 1692 | assert(flags(cur)&CoiMask); |
---|
| 1693 | left=SATisInverted(fan[i])?0:1; |
---|
| 1694 | inv=SATisInverted(cur)?1:0; |
---|
| 1695 | child = inv?SATnormalNode(node)+1:SATnormalNode(node); |
---|
| 1696 | if(left){ |
---|
| 1697 | assert(child==leftChild(cur)); |
---|
| 1698 | } |
---|
| 1699 | else{ |
---|
| 1700 | assert(child==rightChild(cur)); |
---|
| 1701 | } |
---|
| 1702 | } |
---|
| 1703 | |
---|
| 1704 | } |
---|
| 1705 | |
---|
| 1706 | /**Function******************************************************************** |
---|
| 1707 | |
---|
| 1708 | Synopsis [sanity check for abstraction processing] |
---|
| 1709 | |
---|
| 1710 | Description [sanity check for abstraction processing] |
---|
| 1711 | |
---|
| 1712 | SideEffects [] |
---|
| 1713 | |
---|
| 1714 | SeeAlso [] |
---|
| 1715 | |
---|
| 1716 | ******************************************************************************/ |
---|
| 1717 | |
---|
| 1718 | void PureSatCheckCoi(bAig_Manager_t *manager) |
---|
| 1719 | { |
---|
| 1720 | long i; |
---|
| 1721 | for(i=bAigNodeSize;i<manager->nodesArraySize;i+=bAigNodeSize){ |
---|
| 1722 | if(flags(i) & IsCNFMask) |
---|
| 1723 | continue; |
---|
| 1724 | if(!(flags(i) & CoiMask)) |
---|
| 1725 | continue; |
---|
| 1726 | PureSatCheckCoiNode(manager,i); |
---|
| 1727 | } |
---|
| 1728 | |
---|
| 1729 | } |
---|
| 1730 | |
---|
| 1731 | /**Function******************************************************************** |
---|
| 1732 | |
---|
| 1733 | Synopsis [Preprocess to form SAT instances] |
---|
| 1734 | |
---|
| 1735 | Description [Preprocess to form SAT instances] |
---|
| 1736 | |
---|
| 1737 | SideEffects [] |
---|
| 1738 | |
---|
| 1739 | SeeAlso [] |
---|
| 1740 | |
---|
| 1741 | ******************************************************************************/ |
---|
| 1742 | |
---|
| 1743 | |
---|
| 1744 | void PureSatPreprocess(Ntk_Network_t * network, |
---|
| 1745 | satManager_t *cm, |
---|
| 1746 | PureSat_Manager_t *pm, |
---|
| 1747 | st_table *vertexTable, |
---|
| 1748 | int Length) |
---|
| 1749 | |
---|
| 1750 | { |
---|
| 1751 | bAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 1752 | |
---|
| 1753 | PureSatSetCOI(network,pm,cm,vertexTable,0, Length,Length); |
---|
| 1754 | /*for interpolation*/ |
---|
| 1755 | PureSatKillPseudoGV(network,pm,vertexTable,1,Length); |
---|
| 1756 | PureSat_ResetManager(manager,cm,0); |
---|
| 1757 | /*for abstraction*/ |
---|
| 1758 | PureSatProcessFanout(cm); |
---|
| 1759 | } |
---|
| 1760 | |
---|
| 1761 | /**Function******************************************************************** |
---|
| 1762 | |
---|
| 1763 | Synopsis [Recovery step after SAT solving] |
---|
| 1764 | |
---|
| 1765 | Description [Recovery step after SAT solving] |
---|
| 1766 | |
---|
| 1767 | SideEffects [] |
---|
| 1768 | |
---|
| 1769 | SeeAlso [] |
---|
| 1770 | |
---|
| 1771 | ******************************************************************************/ |
---|
| 1772 | |
---|
| 1773 | |
---|
| 1774 | void PureSatPostprocess(bAig_Manager_t *manager, |
---|
| 1775 | satManager_t *cm, |
---|
| 1776 | PureSat_Manager_t *pm) |
---|
| 1777 | { |
---|
| 1778 | |
---|
| 1779 | PureSatRecoverFanout(cm,pm); |
---|
| 1780 | PureSat_RestoreAigForDummyNode(manager,pm->oldPos); |
---|
| 1781 | PureSat_CleanMask(manager,ResetVisited3Mask); |
---|
| 1782 | } |
---|
| 1783 | |
---|
| 1784 | |
---|
| 1785 | /**Function******************************************************************** |
---|
| 1786 | |
---|
| 1787 | Synopsis [Convergence test for flat interpolation algorithm] |
---|
| 1788 | |
---|
| 1789 | Description [Convergence test for flat interpolation algorithm] |
---|
| 1790 | |
---|
| 1791 | SideEffects [] |
---|
| 1792 | |
---|
| 1793 | SeeAlso [] |
---|
| 1794 | |
---|
| 1795 | ******************************************************************************/ |
---|
| 1796 | |
---|
| 1797 | |
---|
| 1798 | /*test if state1 contains state2*/ |
---|
| 1799 | int PureSat_TestConvergeForIP(mAig_Manager_t *manager, |
---|
| 1800 | PureSat_Manager_t *pm, |
---|
| 1801 | satManager_t *cm, |
---|
| 1802 | bAigEdge_t state1, |
---|
| 1803 | bAigEdge_t state2) |
---|
| 1804 | { |
---|
| 1805 | satArray_t * tmp1,*tmp2,*tmp3, *tmp4,*tmp5, *tmp6, *tmp7; |
---|
| 1806 | int status, nodes_in_coi = 0; |
---|
| 1807 | |
---|
| 1808 | if(state2 == bAig_Zero) |
---|
| 1809 | return 1; |
---|
| 1810 | if(state1 == bAig_One) |
---|
| 1811 | return 1; |
---|
| 1812 | if(state1 == bAig_Zero && state2 != bAig_Zero) |
---|
| 1813 | return 0; |
---|
| 1814 | if(state1 != bAig_One && state2 == bAig_One) |
---|
| 1815 | return 0; |
---|
| 1816 | |
---|
| 1817 | if(pm->verbosity>=1) |
---|
| 1818 | fprintf(vis_stdout,"Test convergence:\n"); |
---|
| 1819 | PureSat_ResetCoi(cm); |
---|
| 1820 | if(pm->verbosity>=1){ |
---|
| 1821 | fprintf(vis_stdout,"after reset COI\n"); |
---|
| 1822 | nodes_in_coi = PureSat_CountNodesInCoi(cm); |
---|
| 1823 | fprintf(vis_stdout,"There are %d node in COI\n",nodes_in_coi); |
---|
| 1824 | } |
---|
| 1825 | tmp1 = cm->obj; |
---|
| 1826 | tmp2 = cm->auxObj; |
---|
| 1827 | tmp3 = cm->assertion; |
---|
| 1828 | tmp4 = cm->assertArray; |
---|
| 1829 | //Bing: |
---|
| 1830 | tmp5 = cm->unitLits; |
---|
| 1831 | tmp6 = cm->pureLits; |
---|
| 1832 | tmp7 = cm->nonobjUnitLitArray; |
---|
| 1833 | cm->obj = 0; |
---|
| 1834 | cm->auxObj = 0; |
---|
| 1835 | cm->assertion = 0; |
---|
| 1836 | //cm->assertArray2 = 0; |
---|
| 1837 | cm->assertArray = sat_ArrayAlloc(1); |
---|
| 1838 | sat_ArrayInsert(cm->assertArray,SATnot(state1)); |
---|
| 1839 | sat_ArrayInsert(cm->assertArray,state2); |
---|
| 1840 | sat_SetConeOfInfluence(cm); |
---|
| 1841 | if(pm->verbosity>=1){ |
---|
| 1842 | fprintf(vis_stdout,"after add new init states:\n"); |
---|
| 1843 | nodes_in_coi = PureSat_CountNodesInCoi(cm); |
---|
| 1844 | fprintf(vis_stdout,"There are %d node in COI\n",nodes_in_coi); |
---|
| 1845 | } |
---|
| 1846 | cm->option->coreGeneration = 0; |
---|
| 1847 | //cm->option->effIP = 0; |
---|
| 1848 | cm->option->IP = 0; |
---|
| 1849 | cm->status = 0; |
---|
| 1850 | sat_Main(cm); |
---|
| 1851 | if(manager->NodesArray!=cm->nodesArray) |
---|
| 1852 | /*cm->nodesArray may be reallocated*/ |
---|
| 1853 | manager->NodesArray = cm->nodesArray; |
---|
| 1854 | cm->obj = tmp1; |
---|
| 1855 | cm->auxObj = tmp2; |
---|
| 1856 | cm->assertion = tmp3; |
---|
| 1857 | sat_ArrayFree(cm->assertArray); |
---|
| 1858 | cm->assertArray = tmp4; |
---|
| 1859 | |
---|
| 1860 | cm->unitLits = tmp5; |
---|
| 1861 | cm->pureLits = tmp6; |
---|
| 1862 | cm->nonobjUnitLitArray = tmp7; |
---|
| 1863 | |
---|
| 1864 | cm->option->coreGeneration = 1; |
---|
| 1865 | |
---|
| 1866 | cm->option->IP = 1; |
---|
| 1867 | status = cm->status; |
---|
| 1868 | #if DBG |
---|
| 1869 | assert(cm->currentDecision>=-1); |
---|
| 1870 | #endif |
---|
| 1871 | if(cm->currentDecision!=-1) |
---|
| 1872 | sat_Backtrack(cm,-1); |
---|
| 1873 | cm->status = 0; |
---|
| 1874 | |
---|
| 1875 | if(status == SAT_UNSAT) |
---|
| 1876 | /*state2 contains state1, reach convergence*/ |
---|
| 1877 | return 1; |
---|
| 1878 | else |
---|
| 1879 | return 0; |
---|
| 1880 | } |
---|
| 1881 | |
---|
| 1882 | /**Function******************************************************************** |
---|
| 1883 | |
---|
| 1884 | Synopsis [Convergence test for interpolation algorithm with abstraction |
---|
| 1885 | refinement ] |
---|
| 1886 | |
---|
| 1887 | Description [Convergence test for flat interpolation algorithmwith abstraction |
---|
| 1888 | refinement ] |
---|
| 1889 | |
---|
| 1890 | SideEffects [] |
---|
| 1891 | |
---|
| 1892 | SeeAlso [] |
---|
| 1893 | |
---|
| 1894 | ******************************************************************************/ |
---|
| 1895 | |
---|
| 1896 | |
---|
| 1897 | |
---|
| 1898 | /*test if state1 contains state2 for abstract refinement*/ |
---|
| 1899 | int PureSat_TestConvergeForIP_AbRf(Ntk_Network_t *network, |
---|
| 1900 | satManager_t *cm, |
---|
| 1901 | PureSat_Manager_t *pm, |
---|
| 1902 | array_t * CoiArray, |
---|
| 1903 | bAigEdge_t state1, |
---|
| 1904 | bAigEdge_t state2) |
---|
| 1905 | { |
---|
| 1906 | satArray_t * tmp1,*tmp2,*tmp3, *tmp4,*tmp5, *tmp6, *tmp7; |
---|
| 1907 | int status, nodes_in_coi = 0; |
---|
| 1908 | mAig_Manager_t * manager; |
---|
| 1909 | |
---|
| 1910 | |
---|
| 1911 | if(state2 == bAig_Zero) |
---|
| 1912 | return 1; |
---|
| 1913 | if(state1 == bAig_One) |
---|
| 1914 | return 1; |
---|
| 1915 | if(state1 == bAig_Zero && state2 != bAig_Zero) |
---|
| 1916 | return 0; |
---|
| 1917 | if(state1 != bAig_One && state2 == bAig_One) |
---|
| 1918 | return 0; |
---|
| 1919 | |
---|
| 1920 | |
---|
| 1921 | manager = Ntk_NetworkReadMAigManager(network); |
---|
| 1922 | |
---|
| 1923 | if(pm->verbosity>=1) |
---|
| 1924 | fprintf(vis_stdout,"Test convergence:\n"); |
---|
| 1925 | PureSat_ResetCoi(cm); |
---|
| 1926 | if(pm->verbosity>=1){ |
---|
| 1927 | fprintf(vis_stdout,"after reset COI\n"); |
---|
| 1928 | nodes_in_coi = PureSat_CountNodesInCoi(cm); |
---|
| 1929 | fprintf(vis_stdout,"There are %d node in COI\n",nodes_in_coi); |
---|
| 1930 | } |
---|
| 1931 | tmp1 = cm->obj; |
---|
| 1932 | tmp2 = cm->auxObj; |
---|
| 1933 | tmp3 = cm->assertion; |
---|
| 1934 | tmp4 = cm->assertArray; |
---|
| 1935 | |
---|
| 1936 | tmp5 = cm->unitLits; |
---|
| 1937 | tmp6 = cm->pureLits; |
---|
| 1938 | tmp7 = cm->nonobjUnitLitArray; |
---|
| 1939 | cm->obj = 0; |
---|
| 1940 | cm->auxObj = 0; |
---|
| 1941 | cm->assertion = 0; |
---|
| 1942 | cm->unitLits = 0; |
---|
| 1943 | cm->pureLits = 0; |
---|
| 1944 | cm->nonobjUnitLitArray = 0; |
---|
| 1945 | cm->assertArray = sat_ArrayAlloc(1); |
---|
| 1946 | sat_ArrayInsert(cm->assertArray,SATnot(state1)); |
---|
| 1947 | sat_ArrayInsert(cm->assertArray,state2); |
---|
| 1948 | |
---|
| 1949 | sat_MarkTransitiveFaninForArray(cm, cm->assertArray, CoiMask); |
---|
| 1950 | |
---|
| 1951 | if(pm->verbosity>=1){ |
---|
| 1952 | fprintf(vis_stdout,"after add new init states:\n"); |
---|
| 1953 | nodes_in_coi = PureSat_CountNodesInCoi(cm); |
---|
| 1954 | fprintf(vis_stdout,"There are %d node in COI\n",nodes_in_coi); |
---|
| 1955 | } |
---|
| 1956 | cm->option->coreGeneration = 0; |
---|
| 1957 | cm->status = 0; |
---|
| 1958 | cm->option->AbRf = 0; |
---|
| 1959 | sat_Main(cm); |
---|
| 1960 | cm->option->AbRf = 1; |
---|
| 1961 | if(manager->NodesArray!=cm->nodesArray) |
---|
| 1962 | /*cm->nodesArray may be reallocated*/ |
---|
| 1963 | manager->NodesArray = cm->nodesArray; |
---|
| 1964 | sat_ArrayFree(cm->assertArray); |
---|
| 1965 | manager->assertArray = tmp4; |
---|
| 1966 | cm->obj = tmp1; |
---|
| 1967 | cm->auxObj = tmp2; |
---|
| 1968 | cm->assertion = tmp3; |
---|
| 1969 | cm->assertArray = tmp4; |
---|
| 1970 | |
---|
| 1971 | cm->unitLits = tmp5; |
---|
| 1972 | cm->pureLits = tmp6; |
---|
| 1973 | cm->nonobjUnitLitArray = tmp7; |
---|
| 1974 | cm->option->coreGeneration = 1; |
---|
| 1975 | status = cm->status; |
---|
| 1976 | if(cm->currentDecision!=-1) |
---|
| 1977 | sat_Backtrack(cm,-1); |
---|
| 1978 | cm->status = 0; |
---|
| 1979 | |
---|
| 1980 | if(status == SAT_UNSAT) |
---|
| 1981 | /*state2 contains state1, reach convergence*/ |
---|
| 1982 | return 1; |
---|
| 1983 | else |
---|
| 1984 | return 0; |
---|
| 1985 | } |
---|
| 1986 | |
---|
| 1987 | /**Function******************************************************************** |
---|
| 1988 | |
---|
| 1989 | Synopsis [Allocate a PureSAT Manager] |
---|
| 1990 | |
---|
| 1991 | Description [Allocate a PureSAT Manager] |
---|
| 1992 | |
---|
| 1993 | SideEffects [] |
---|
| 1994 | |
---|
| 1995 | SeeAlso [] |
---|
| 1996 | |
---|
| 1997 | ******************************************************************************/ |
---|
| 1998 | |
---|
| 1999 | satManager_t * PureSat_SatManagerAlloc(bAig_Manager_t *manager, |
---|
| 2000 | PureSat_Manager_t *pm, |
---|
| 2001 | bAigEdge_t object, |
---|
| 2002 | array_t *auxObjectArray) |
---|
| 2003 | { |
---|
| 2004 | satManager_t * cm; |
---|
| 2005 | satOption_t *option; |
---|
| 2006 | int i,size; |
---|
| 2007 | bAigEdge_t tv; |
---|
| 2008 | |
---|
| 2009 | cm = ALLOC(satManager_t, 1); |
---|
| 2010 | memset(cm, 0, sizeof(satManager_t)); |
---|
| 2011 | cm->nodesArraySize = manager->nodesArraySize; |
---|
| 2012 | cm->initNodesArraySize = manager->nodesArraySize; |
---|
| 2013 | cm->maxNodesArraySize = manager->maxNodesArraySize; |
---|
| 2014 | cm->nodesArray = manager->NodesArray; |
---|
| 2015 | |
---|
| 2016 | cm->HashTable = manager->HashTable; |
---|
| 2017 | cm->literals = manager->literals; |
---|
| 2018 | |
---|
| 2019 | cm->initNumVariables = (manager->nodesArraySize/bAigNodeSize)-1; |
---|
| 2020 | cm->initNumClauses = 0; |
---|
| 2021 | cm->initNumLiterals = 0; |
---|
| 2022 | cm->comment = ALLOC(char, 2); |
---|
| 2023 | cm->comment[0] = ' '; |
---|
| 2024 | cm->comment[1] = '\0'; |
---|
| 2025 | cm->stdErr = vis_stderr; |
---|
| 2026 | cm->stdOut = vis_stdout; |
---|
| 2027 | cm->status = 0; |
---|
| 2028 | cm->orderedVariableArray = 0; |
---|
| 2029 | cm->unitLits = sat_ArrayAlloc(16); |
---|
| 2030 | cm->pureLits = sat_ArrayAlloc(16); |
---|
| 2031 | cm->option = 0; |
---|
| 2032 | cm->each = 0; |
---|
| 2033 | cm->decisionHead = 0; |
---|
| 2034 | cm->variableArray = 0; |
---|
| 2035 | cm->queue = 0; |
---|
| 2036 | cm->BDDQueue = 0; |
---|
| 2037 | cm->unusedAigQueue = 0; |
---|
| 2038 | |
---|
| 2039 | cm->ipm = manager->ipm; |
---|
| 2040 | cm->assertArray = manager->assertArray; |
---|
| 2041 | cm->assertArray2 = manager->assertArray2; |
---|
| 2042 | cm->InitState = manager->InitState; |
---|
| 2043 | cm->CoiAssertArray = manager->CoiAssertArray; |
---|
| 2044 | cm->EqArray = manager->EqArray; |
---|
| 2045 | |
---|
| 2046 | if(auxObjectArray) { |
---|
| 2047 | cm->auxObj = sat_ArrayAlloc(auxObjectArray->num+1); |
---|
| 2048 | size = auxObjectArray->num; |
---|
| 2049 | for(i=0; i<size; i++) { |
---|
| 2050 | tv = array_fetch(bAigEdge_t, auxObjectArray, i); |
---|
| 2051 | if(tv == 1) continue; |
---|
| 2052 | else if(tv == 0) { |
---|
| 2053 | cm->status = SAT_UNSAT; |
---|
| 2054 | break; |
---|
| 2055 | } |
---|
| 2056 | sat_ArrayInsert(cm->auxObj, tv); |
---|
| 2057 | } |
---|
| 2058 | } |
---|
| 2059 | if(object == 0) cm->status = SAT_UNSAT; |
---|
| 2060 | else if(object == 1) cm->status = SAT_SAT; |
---|
| 2061 | |
---|
| 2062 | |
---|
| 2063 | if(cm->status == 0) { |
---|
| 2064 | if(object!=-1){ |
---|
| 2065 | cm->obj = sat_ArrayAlloc(1); |
---|
| 2066 | sat_ArrayInsert(cm->obj, object); |
---|
| 2067 | } |
---|
| 2068 | /* initialize option*/ |
---|
| 2069 | option = sat_InitOption(); |
---|
| 2070 | |
---|
| 2071 | option->coreGeneration = 1; |
---|
| 2072 | option->ForceFinish = 1; |
---|
| 2073 | |
---|
| 2074 | option->clauseDeletionHeuristic = 0; |
---|
| 2075 | option->includeLevelZeroLiteral = 1; |
---|
| 2076 | option->minimizeConflictClause = 0; |
---|
| 2077 | option->IP = 1; |
---|
| 2078 | option->RT = 1; |
---|
| 2079 | option->verbose = pm->verbosity; |
---|
| 2080 | |
---|
| 2081 | cm->anteTable = st_init_table(st_numcmp,st_numhash); |
---|
| 2082 | cm->RTreeTable = st_init_table(st_ptrcmp,st_ptrhash); |
---|
| 2083 | |
---|
| 2084 | cm->option = option; |
---|
| 2085 | cm->each = sat_InitStatistics(); |
---|
| 2086 | |
---|
| 2087 | BmcRestoreAssertion(manager,cm); |
---|
| 2088 | |
---|
| 2089 | /* value reset..*/ |
---|
| 2090 | sat_CleanDatabase(cm); |
---|
| 2091 | |
---|
| 2092 | /* set cone of influence*/ |
---|
| 2093 | sat_SetConeOfInfluence(cm); |
---|
| 2094 | sat_AllocLiteralsDB(cm); |
---|
| 2095 | } |
---|
| 2096 | return cm; |
---|
| 2097 | } |
---|
| 2098 | |
---|
| 2099 | |
---|
| 2100 | /**Function******************************************************************** |
---|
| 2101 | |
---|
| 2102 | Synopsis [Allocate a PureSAT Manager without setting COI] |
---|
| 2103 | |
---|
| 2104 | Description [Allocate a PureSAT Manager without setting COI] |
---|
| 2105 | |
---|
| 2106 | SideEffects [] |
---|
| 2107 | |
---|
| 2108 | SeeAlso [] |
---|
| 2109 | |
---|
| 2110 | ******************************************************************************/ |
---|
| 2111 | satManager_t * PureSat_SatManagerAlloc_WOCOI(mAig_Manager_t *manager, |
---|
| 2112 | PureSat_Manager_t *pm, |
---|
| 2113 | bAigEdge_t object, |
---|
| 2114 | array_t *auxObjectArray) |
---|
| 2115 | { |
---|
| 2116 | satManager_t * cm; |
---|
| 2117 | satOption_t *option; |
---|
| 2118 | int i,size; |
---|
| 2119 | bAigEdge_t tv; |
---|
| 2120 | |
---|
| 2121 | cm = ALLOC(satManager_t, 1); |
---|
| 2122 | memset(cm, 0, sizeof(satManager_t)); |
---|
| 2123 | cm->nodesArraySize = manager->nodesArraySize; |
---|
| 2124 | cm->initNodesArraySize = manager->nodesArraySize; |
---|
| 2125 | cm->maxNodesArraySize = manager->maxNodesArraySize; |
---|
| 2126 | cm->nodesArray = manager->NodesArray; |
---|
| 2127 | |
---|
| 2128 | cm->HashTable = manager->HashTable; |
---|
| 2129 | cm->literals = manager->literals; |
---|
| 2130 | |
---|
| 2131 | cm->initNumVariables = (manager->nodesArraySize/bAigNodeSize)-1; |
---|
| 2132 | cm->initNumClauses = 0; |
---|
| 2133 | cm->initNumLiterals = 0; |
---|
| 2134 | cm->comment = ALLOC(char, 2); |
---|
| 2135 | cm->comment[0] = ' '; |
---|
| 2136 | cm->comment[1] = '\0'; |
---|
| 2137 | cm->stdErr = vis_stderr; |
---|
| 2138 | cm->stdOut = vis_stdout; |
---|
| 2139 | cm->status = 0; |
---|
| 2140 | cm->orderedVariableArray = 0; |
---|
| 2141 | cm->unitLits = sat_ArrayAlloc(16); |
---|
| 2142 | cm->pureLits = sat_ArrayAlloc(16); |
---|
| 2143 | cm->option = 0; |
---|
| 2144 | cm->each = 0; |
---|
| 2145 | cm->decisionHead = 0; |
---|
| 2146 | cm->variableArray = 0; |
---|
| 2147 | cm->queue = 0; |
---|
| 2148 | cm->BDDQueue = 0; |
---|
| 2149 | cm->unusedAigQueue = 0; |
---|
| 2150 | |
---|
| 2151 | cm->ipm = manager->ipm; |
---|
| 2152 | cm->assertArray = manager->assertArray; |
---|
| 2153 | cm->assertArray2 = manager->assertArray2; |
---|
| 2154 | cm->InitState = manager->InitState; |
---|
| 2155 | cm->CoiAssertArray = manager->CoiAssertArray; |
---|
| 2156 | cm->EqArray = manager->EqArray; |
---|
| 2157 | |
---|
| 2158 | if(auxObjectArray) { |
---|
| 2159 | cm->auxObj = sat_ArrayAlloc(auxObjectArray->num+1); |
---|
| 2160 | size = auxObjectArray->num; |
---|
| 2161 | for(i=0; i<size; i++) { |
---|
| 2162 | tv = array_fetch(bAigEdge_t, auxObjectArray, i); |
---|
| 2163 | if(tv == 1) continue; |
---|
| 2164 | else if(tv == 0) { |
---|
| 2165 | cm->status = SAT_UNSAT; |
---|
| 2166 | break; |
---|
| 2167 | } |
---|
| 2168 | sat_ArrayInsert(cm->auxObj, tv); |
---|
| 2169 | } |
---|
| 2170 | } |
---|
| 2171 | if(object == 0) cm->status = SAT_UNSAT; |
---|
| 2172 | else if(object == 1) cm->status = SAT_SAT; |
---|
| 2173 | |
---|
| 2174 | |
---|
| 2175 | if(cm->status == 0) { |
---|
| 2176 | if(object!=-1){ |
---|
| 2177 | cm->obj = sat_ArrayAlloc(1); |
---|
| 2178 | sat_ArrayInsert(cm->obj, object); |
---|
| 2179 | } |
---|
| 2180 | |
---|
| 2181 | option = sat_InitOption(); |
---|
| 2182 | option->ForceFinish = 1; |
---|
| 2183 | |
---|
| 2184 | option->coreGeneration = 1; |
---|
| 2185 | option->clauseDeletionHeuristic = 0; |
---|
| 2186 | option->includeLevelZeroLiteral = 1; |
---|
| 2187 | option->minimizeConflictClause = 0; |
---|
| 2188 | option->IP = 0; |
---|
| 2189 | option->RT = 1; |
---|
| 2190 | option->verbose = pm->verbosity; |
---|
| 2191 | |
---|
| 2192 | cm->anteTable = st_init_table(st_numcmp,st_numhash); |
---|
| 2193 | cm->RTreeTable = st_init_table(st_ptrcmp,st_ptrhash); |
---|
| 2194 | |
---|
| 2195 | cm->option = option; |
---|
| 2196 | cm->each = sat_InitStatistics(); |
---|
| 2197 | |
---|
| 2198 | BmcRestoreAssertion(manager,cm); |
---|
| 2199 | |
---|
| 2200 | sat_CleanDatabase(cm); |
---|
| 2201 | |
---|
| 2202 | /* WOCOI: NO set cone of influence*/ |
---|
| 2203 | sat_AllocLiteralsDB(cm); |
---|
| 2204 | } |
---|
| 2205 | return cm; |
---|
| 2206 | } |
---|
| 2207 | |
---|
| 2208 | /**Function******************************************************************** |
---|
| 2209 | |
---|
| 2210 | Synopsis [Free a PureSAT manager] |
---|
| 2211 | |
---|
| 2212 | Description [Free a PureSAT manager] |
---|
| 2213 | |
---|
| 2214 | SideEffects [] |
---|
| 2215 | |
---|
| 2216 | SeeAlso [] |
---|
| 2217 | |
---|
| 2218 | ******************************************************************************/ |
---|
| 2219 | |
---|
| 2220 | |
---|
| 2221 | void PureSat_SatFreeManager(satManager_t*cm) |
---|
| 2222 | { |
---|
| 2223 | satVariable_t var; |
---|
| 2224 | satLevel_t *d; |
---|
| 2225 | int i; |
---|
| 2226 | |
---|
| 2227 | |
---|
| 2228 | if(cm->option->coreGeneration){ |
---|
| 2229 | st_free_table(cm->anteTable); |
---|
| 2230 | st_free_table(cm->RTreeTable); |
---|
| 2231 | |
---|
| 2232 | cm->anteTable=0; |
---|
| 2233 | cm->RTreeTable=0; |
---|
| 2234 | } |
---|
| 2235 | |
---|
| 2236 | /*timeframe, timeframeWOI,HashTable can't be freed*/ |
---|
| 2237 | |
---|
| 2238 | if(cm->option) sat_FreeOption(cm->option); |
---|
| 2239 | if(cm->total) sat_FreeStatistics(cm->total); |
---|
| 2240 | if(cm->each) sat_FreeStatistics(cm->each); |
---|
| 2241 | |
---|
| 2242 | if(cm->literals) sat_FreeLiteralsDB(cm->literals); |
---|
| 2243 | |
---|
| 2244 | cm->option=0; |
---|
| 2245 | cm->total=0; |
---|
| 2246 | cm->each=0; |
---|
| 2247 | cm->literals=0; |
---|
| 2248 | |
---|
| 2249 | if(cm->decisionHead) { |
---|
| 2250 | for(i=0; i<cm->decisionHeadSize; i++) { |
---|
| 2251 | d = &(cm->decisionHead[i]); |
---|
| 2252 | if(d->implied) |
---|
| 2253 | sat_ArrayFree(d->implied); |
---|
| 2254 | if(d->satisfied) |
---|
| 2255 | sat_ArrayFree(d->satisfied); |
---|
| 2256 | } |
---|
| 2257 | free(cm->decisionHead); |
---|
| 2258 | cm->decisionHead = 0; |
---|
| 2259 | cm->decisionHeadSize = 0; |
---|
| 2260 | } |
---|
| 2261 | |
---|
| 2262 | if(cm->queue) sat_FreeQueue(cm->queue); |
---|
| 2263 | if(cm->BDDQueue) sat_FreeQueue(cm->BDDQueue); |
---|
| 2264 | if(cm->unusedAigQueue)sat_FreeQueue(cm->unusedAigQueue); |
---|
| 2265 | cm->queue = 0; |
---|
| 2266 | cm->BDDQueue = 0; |
---|
| 2267 | cm->unusedAigQueue = 0; |
---|
| 2268 | |
---|
| 2269 | if(cm->auxObj) sat_ArrayFree(cm->auxObj); |
---|
| 2270 | if(cm->obj) sat_ArrayFree(cm->obj); |
---|
| 2271 | if(cm->unitLits) sat_ArrayFree(cm->unitLits); |
---|
| 2272 | if(cm->pureLits) sat_ArrayFree(cm->pureLits); |
---|
| 2273 | if(cm->assertion) sat_ArrayFree(cm->assertion); |
---|
| 2274 | if(cm->auxArray) sat_ArrayFree(cm->auxArray); |
---|
| 2275 | if(cm->nonobjUnitLitArray) sat_ArrayFree(cm->nonobjUnitLitArray); |
---|
| 2276 | if(cm->objUnitLitArray) sat_ArrayFree(cm->objUnitLitArray); |
---|
| 2277 | if(cm->orderedVariableArray) sat_ArrayFree(cm->orderedVariableArray); |
---|
| 2278 | if(cm->savedConflictClauses) sat_ArrayFree(cm->savedConflictClauses); |
---|
| 2279 | |
---|
| 2280 | cm->auxObj = 0; |
---|
| 2281 | cm->obj = 0; |
---|
| 2282 | cm->unitLits = 0; |
---|
| 2283 | cm->pureLits = 0; |
---|
| 2284 | cm->assertion = 0; |
---|
| 2285 | cm->auxArray = 0; |
---|
| 2286 | cm->nonobjUnitLitArray = 0; |
---|
| 2287 | cm->objUnitLitArray = 0; |
---|
| 2288 | cm->orderedVariableArray = 0; |
---|
| 2289 | |
---|
| 2290 | if(cm->variableArray) { |
---|
| 2291 | for(i=0; i<cm->initNumVariables; i++) { |
---|
| 2292 | var = cm->variableArray[i]; |
---|
| 2293 | if(var.wl[0]) { |
---|
| 2294 | sat_ArrayFree(var.wl[0]); |
---|
| 2295 | var.wl[0] = 0; |
---|
| 2296 | } |
---|
| 2297 | if(var.wl[1]) { |
---|
| 2298 | sat_ArrayFree(var.wl[1]); |
---|
| 2299 | var.wl[1] = 0; |
---|
| 2300 | } |
---|
| 2301 | } |
---|
| 2302 | free(cm->variableArray); |
---|
| 2303 | cm->variableArray = 0; |
---|
| 2304 | } |
---|
| 2305 | |
---|
| 2306 | if(cm->comment) free(cm->comment); |
---|
| 2307 | cm->comment=0; |
---|
| 2308 | |
---|
| 2309 | FREE(cm); |
---|
| 2310 | } |
---|
| 2311 | |
---|
| 2312 | /**Function******************************************************************** |
---|
| 2313 | |
---|
| 2314 | Synopsis [Print the status of AIG] |
---|
| 2315 | |
---|
| 2316 | Description [Print the status of AIG] |
---|
| 2317 | |
---|
| 2318 | SideEffects [] |
---|
| 2319 | |
---|
| 2320 | SeeAlso [] |
---|
| 2321 | |
---|
| 2322 | ******************************************************************************/ |
---|
| 2323 | |
---|
| 2324 | |
---|
| 2325 | void PureSat_PrintAigStatus(mAig_Manager_t *manager) |
---|
| 2326 | { |
---|
| 2327 | (void) fprintf(vis_stdout,"Maximum number of nodes: %ld\n", |
---|
| 2328 | manager->maxNodesArraySize/bAigNodeSize); |
---|
| 2329 | (void) fprintf(vis_stdout,"Current number of nodes: %ld\n", |
---|
| 2330 | manager->nodesArraySize/bAigNodeSize); |
---|
| 2331 | fprintf(vis_stdout,"Current Max Node Index: %ld\n\n", |
---|
| 2332 | manager->nodesArraySize); |
---|
| 2333 | } |
---|
| 2334 | |
---|
| 2335 | /**Function******************************************************************** |
---|
| 2336 | |
---|
| 2337 | Synopsis [Mark global variables] |
---|
| 2338 | |
---|
| 2339 | Description [Mark global variables] |
---|
| 2340 | |
---|
| 2341 | SideEffects [] |
---|
| 2342 | |
---|
| 2343 | SeeAlso [] |
---|
| 2344 | |
---|
| 2345 | ******************************************************************************/ |
---|
| 2346 | |
---|
| 2347 | void PureSat_MarkGlobalVar(bAig_Manager_t *manager, |
---|
| 2348 | int length) |
---|
| 2349 | { |
---|
| 2350 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 2351 | bAigEdge_t * li,* bli,node; |
---|
| 2352 | int i; |
---|
| 2353 | |
---|
| 2354 | li = tf->latchInputs[length]; |
---|
| 2355 | bli = tf->blatchInputs[length]; |
---|
| 2356 | |
---|
| 2357 | for(i=0; i<tf->nLatches; i++){ |
---|
| 2358 | node = bAig_NonInvertedEdge(li[i]); |
---|
| 2359 | manager->NodesArray[node+bAigFlags] |= IsGlobalVarMask; |
---|
| 2360 | } |
---|
| 2361 | |
---|
| 2362 | for(i=0; i<tf->nbLatches; i++){ |
---|
| 2363 | node = bAig_NonInvertedEdge(bli[i]); |
---|
| 2364 | manager->NodesArray[node+bAigFlags] |= IsGlobalVarMask; |
---|
| 2365 | } |
---|
| 2366 | } |
---|
| 2367 | |
---|
| 2368 | /**Function******************************************************************** |
---|
| 2369 | |
---|
| 2370 | Synopsis [UnMark global variables] |
---|
| 2371 | |
---|
| 2372 | Description [UnMark global variables] |
---|
| 2373 | |
---|
| 2374 | SideEffects [] |
---|
| 2375 | |
---|
| 2376 | SeeAlso [] |
---|
| 2377 | |
---|
| 2378 | ******************************************************************************/ |
---|
| 2379 | |
---|
| 2380 | void PureSat_UnMarkGlobalVar(bAig_Manager_t *manager, |
---|
| 2381 | int length) |
---|
| 2382 | { |
---|
| 2383 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 2384 | bAigEdge_t * li,* bli,node; |
---|
| 2385 | int i; |
---|
| 2386 | |
---|
| 2387 | li = tf->latchInputs[length]; |
---|
| 2388 | bli = tf->blatchInputs[length]; |
---|
| 2389 | |
---|
| 2390 | for(i=0; i<tf->nLatches; i++){ |
---|
| 2391 | node = bAig_NonInvertedEdge(li[i]); |
---|
| 2392 | manager->NodesArray[node+bAigFlags] &= ResetGlobalVarMask; |
---|
| 2393 | } |
---|
| 2394 | |
---|
| 2395 | for(i=0; i<tf->nbLatches; i++){ |
---|
| 2396 | node = bAig_NonInvertedEdge(bli[i]); |
---|
| 2397 | manager->NodesArray[node+bAigFlags] &= ResetGlobalVarMask; |
---|
| 2398 | } |
---|
| 2399 | } |
---|
| 2400 | |
---|
| 2401 | |
---|
| 2402 | /**Function******************************************************************** |
---|
| 2403 | |
---|
| 2404 | Synopsis [Makr global variable for abstraction refinement] |
---|
| 2405 | |
---|
| 2406 | Description [] |
---|
| 2407 | |
---|
| 2408 | SideEffects [] |
---|
| 2409 | |
---|
| 2410 | SeeAlso [] |
---|
| 2411 | |
---|
| 2412 | ******************************************************************************/ |
---|
| 2413 | |
---|
| 2414 | void PureSat_MarkGlobalVar_AbRf(bAig_Manager_t *manager, |
---|
| 2415 | int length) |
---|
| 2416 | { |
---|
| 2417 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 2418 | bAigEdge_t * li,* bli,node; |
---|
| 2419 | int i; |
---|
| 2420 | |
---|
| 2421 | |
---|
| 2422 | li = tf->latchInputs[length]; |
---|
| 2423 | bli = tf->blatchInputs[length]; |
---|
| 2424 | |
---|
| 2425 | for(i=0; i<tf->nLatches; i++){ |
---|
| 2426 | node = bAig_NonInvertedEdge(li[i]); |
---|
| 2427 | if(flags(node)&VisibleVarMask) |
---|
| 2428 | manager->NodesArray[node+bAigFlags] |= IsGlobalVarMask; |
---|
| 2429 | } |
---|
| 2430 | |
---|
| 2431 | for(i=0; i<tf->nbLatches; i++){ |
---|
| 2432 | node = bAig_NonInvertedEdge(bli[i]); |
---|
| 2433 | if(flags(node)&VisibleVarMask) |
---|
| 2434 | manager->NodesArray[node+bAigFlags] |= IsGlobalVarMask; |
---|
| 2435 | } |
---|
| 2436 | |
---|
| 2437 | } |
---|
| 2438 | |
---|
| 2439 | |
---|
| 2440 | /**Function******************************************************************** |
---|
| 2441 | |
---|
| 2442 | Synopsis [Mark visible variable and also mark visible pseudo global variable] |
---|
| 2443 | |
---|
| 2444 | Description [] |
---|
| 2445 | |
---|
| 2446 | SideEffects [] |
---|
| 2447 | |
---|
| 2448 | SeeAlso [] |
---|
| 2449 | |
---|
| 2450 | ******************************************************************************/ |
---|
| 2451 | |
---|
| 2452 | void PuresatMarkVisibleVarWithVPGV(Ntk_Network_t *network, |
---|
| 2453 | array_t * visibleArray, |
---|
| 2454 | PureSat_Manager_t *pm, |
---|
| 2455 | int from, |
---|
| 2456 | int to) |
---|
| 2457 | { |
---|
| 2458 | |
---|
| 2459 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 2460 | st_table * node2MvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, |
---|
| 2461 | MVFAIG_NETWORK_APPL_KEY); |
---|
| 2462 | MvfAig_Function_t *mvfAig; |
---|
| 2463 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 2464 | mAigMvar_t lmVar; |
---|
| 2465 | mAigBvar_t bVar; |
---|
| 2466 | array_t *bVarList,*mVarList; |
---|
| 2467 | int i,j,k,lmAigId,index,index1; |
---|
| 2468 | char * name; |
---|
| 2469 | Ntk_Node_t * latch; |
---|
| 2470 | bAigEdge_t node,v, *li, *bli; |
---|
| 2471 | |
---|
| 2472 | bVarList = mAigReadBinVarList(manager); |
---|
| 2473 | mVarList = mAigReadMulVarList(manager); |
---|
| 2474 | |
---|
| 2475 | /*Although some SV in tf 0 are not marked as visiblevar, |
---|
| 2476 | //they actually visible since all SV of tf 0 are visible*/ |
---|
| 2477 | if(from<0) |
---|
| 2478 | from=0; |
---|
| 2479 | if(to>pm->Length+1) |
---|
| 2480 | to=pm->Length+1; |
---|
| 2481 | |
---|
| 2482 | /*clean VPGV mask*/ |
---|
| 2483 | li = tf->latchInputs[1]; |
---|
| 2484 | bli = tf->blatchInputs[1]; |
---|
| 2485 | for(j=0;j<tf->nLatches;j++) |
---|
| 2486 | flags(li[j])&=ResetVPGVMask; |
---|
| 2487 | for(j=0;j<tf->nbLatches;j++) |
---|
| 2488 | flags(bli[j])&=ResetVPGVMask; |
---|
| 2489 | |
---|
| 2490 | for(i=from;i<=to;i++){ |
---|
| 2491 | li = tf->latchInputs[i]; |
---|
| 2492 | bli = tf->blatchInputs[i]; |
---|
| 2493 | arrayForEachItem(char *,visibleArray,k,name){ |
---|
| 2494 | int retVal; |
---|
| 2495 | latch = Ntk_NetworkFindNodeByName(network,name); |
---|
| 2496 | st_lookup(node2MvfAigTable,latch,&mvfAig); |
---|
| 2497 | for(j=0;j<mvfAig->num;j++){ |
---|
| 2498 | v = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(mvfAig,j)); |
---|
| 2499 | if(v==bAig_Zero||v==bAig_One) |
---|
| 2500 | continue; |
---|
| 2501 | retVal = st_lookup(tf->li2index,(char*)v,&index); |
---|
| 2502 | assert(retVal); |
---|
| 2503 | if(li[index]==bAig_Zero||li[index]==bAig_One) |
---|
| 2504 | continue; |
---|
| 2505 | node = bAig_NonInvertedEdge(li[index]); |
---|
| 2506 | manager->NodesArray[node+bAigFlags] |= VisibleVarMask; |
---|
| 2507 | /*marking PGV*/ |
---|
| 2508 | if(i==1){ |
---|
| 2509 | if(!st_lookup(pm->vertexTable,name,NIL(char*))){ |
---|
| 2510 | flags(node) |= VPGVMask; |
---|
| 2511 | |
---|
| 2512 | } |
---|
| 2513 | } |
---|
| 2514 | } |
---|
| 2515 | |
---|
| 2516 | |
---|
| 2517 | lmAigId = Ntk_NodeReadMAigId(latch); |
---|
| 2518 | lmVar = array_fetch(mAigMvar_t, mVarList,lmAigId); |
---|
| 2519 | for(j=0,index1=lmVar.bVars;j<lmVar.encodeLength;j++,index1++){ |
---|
| 2520 | int retVal; |
---|
| 2521 | bVar = array_fetch(mAigBvar_t,bVarList,index1); |
---|
| 2522 | if(bVar.node==bAig_Zero||bVar.node==bAig_One) |
---|
| 2523 | continue; |
---|
| 2524 | retVal = st_lookup(tf->bli2index,(char*)bVar.node,&index); |
---|
| 2525 | assert(retVal); |
---|
| 2526 | if(bli[index]==bAig_Zero||bli[index]==bAig_One) |
---|
| 2527 | continue; |
---|
| 2528 | node = bAig_NonInvertedEdge(bli[index]); |
---|
| 2529 | manager->NodesArray[node+bAigFlags] |= VisibleVarMask; |
---|
| 2530 | /*marking PGV*/ |
---|
| 2531 | if(i==1){ |
---|
| 2532 | if(!st_lookup(pm->vertexTable,name,NIL(char*))) |
---|
| 2533 | flags(node) |= VPGVMask; |
---|
| 2534 | } |
---|
| 2535 | } |
---|
| 2536 | } |
---|
| 2537 | } |
---|
| 2538 | return; |
---|
| 2539 | |
---|
| 2540 | } |
---|
| 2541 | |
---|
| 2542 | |
---|
| 2543 | /**Function******************************************************************** |
---|
| 2544 | |
---|
| 2545 | Synopsis [Mark visible latch variables] |
---|
| 2546 | |
---|
| 2547 | Description [] |
---|
| 2548 | |
---|
| 2549 | SideEffects [] |
---|
| 2550 | |
---|
| 2551 | SeeAlso [] |
---|
| 2552 | |
---|
| 2553 | ******************************************************************************/ |
---|
| 2554 | |
---|
| 2555 | void PuresatMarkVisibleVar(Ntk_Network_t *network, |
---|
| 2556 | array_t * visibleArray, |
---|
| 2557 | PureSat_Manager_t *pm, |
---|
| 2558 | int from, |
---|
| 2559 | int to) |
---|
| 2560 | { |
---|
| 2561 | |
---|
| 2562 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 2563 | st_table * node2MvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, |
---|
| 2564 | MVFAIG_NETWORK_APPL_KEY); |
---|
| 2565 | MvfAig_Function_t *mvfAig; |
---|
| 2566 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 2567 | mAigMvar_t lmVar; |
---|
| 2568 | mAigBvar_t bVar; |
---|
| 2569 | array_t *bVarList,*mVarList; |
---|
| 2570 | int i,j,k,lmAigId,index,index1; |
---|
| 2571 | char * name; |
---|
| 2572 | Ntk_Node_t * latch; |
---|
| 2573 | bAigEdge_t node,v, *li, *bli; |
---|
| 2574 | |
---|
| 2575 | bVarList = mAigReadBinVarList(manager); |
---|
| 2576 | mVarList = mAigReadMulVarList(manager); |
---|
| 2577 | |
---|
| 2578 | |
---|
| 2579 | if(from<0) |
---|
| 2580 | from=0; |
---|
| 2581 | if(to>pm->Length+1) |
---|
| 2582 | to=pm->Length+1; |
---|
| 2583 | |
---|
| 2584 | for(i=from;i<=to;i++){ |
---|
| 2585 | li = tf->latchInputs[i]; |
---|
| 2586 | bli = tf->blatchInputs[i]; |
---|
| 2587 | arrayForEachItem(char *,visibleArray,k,name){ |
---|
| 2588 | latch = Ntk_NetworkFindNodeByName(network,name); |
---|
| 2589 | st_lookup(node2MvfAigTable,latch,&mvfAig); |
---|
| 2590 | /*multi val var*/ |
---|
| 2591 | for(j=0;j<mvfAig->num;j++){ |
---|
| 2592 | int retVal; |
---|
| 2593 | v = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(mvfAig,j)); |
---|
| 2594 | if(v==bAig_Zero||v==bAig_One) |
---|
| 2595 | continue; |
---|
| 2596 | retVal = st_lookup(tf->li2index,(char*)v,&index); |
---|
| 2597 | assert(retVal); |
---|
| 2598 | if(li[index]==bAig_Zero||li[index]==bAig_One) |
---|
| 2599 | continue; |
---|
| 2600 | node = bAig_NonInvertedEdge(li[index]); |
---|
| 2601 | manager->NodesArray[node+bAigFlags] |= VisibleVarMask; |
---|
| 2602 | } |
---|
| 2603 | |
---|
| 2604 | /*binary var*/ |
---|
| 2605 | lmAigId = Ntk_NodeReadMAigId(latch); |
---|
| 2606 | lmVar = array_fetch(mAigMvar_t, mVarList,lmAigId); |
---|
| 2607 | for(j=0,index1=lmVar.bVars;j<lmVar.encodeLength;j++,index1++){ |
---|
| 2608 | int retVal; |
---|
| 2609 | bVar = array_fetch(mAigBvar_t,bVarList,index1); |
---|
| 2610 | if(bVar.node==bAig_Zero||bVar.node==bAig_One) |
---|
| 2611 | continue; |
---|
| 2612 | retVal = st_lookup(tf->bli2index,(char*)bVar.node,&index); |
---|
| 2613 | assert(retVal); |
---|
| 2614 | if(bli[index]==bAig_Zero||bli[index]==bAig_One) |
---|
| 2615 | continue; |
---|
| 2616 | node = bAig_NonInvertedEdge(bli[index]); |
---|
| 2617 | manager->NodesArray[node+bAigFlags] |= VisibleVarMask; |
---|
| 2618 | } |
---|
| 2619 | }// arrayForEachItem(char *,visibleArray,k,name) |
---|
| 2620 | } |
---|
| 2621 | |
---|
| 2622 | return; |
---|
| 2623 | |
---|
| 2624 | } |
---|
| 2625 | |
---|
| 2626 | |
---|
| 2627 | /**Function******************************************************************** |
---|
| 2628 | |
---|
| 2629 | Synopsis [Recursively mapping interpolant from a timeframe to another timeframe] |
---|
| 2630 | |
---|
| 2631 | Description [] |
---|
| 2632 | |
---|
| 2633 | SideEffects [] |
---|
| 2634 | |
---|
| 2635 | SeeAlso [] |
---|
| 2636 | |
---|
| 2637 | ******************************************************************************/ |
---|
| 2638 | |
---|
| 2639 | bAigEdge_t PureSat_MapIPRecur(mAig_Manager_t *manager, |
---|
| 2640 | bAigEdge_t node, |
---|
| 2641 | st_table * tmpTable) |
---|
| 2642 | { |
---|
| 2643 | bAigEdge_t v,result,left,right; |
---|
| 2644 | int isInverted; |
---|
| 2645 | |
---|
| 2646 | #if DBG |
---|
| 2647 | assert(node!=bAig_NULL); |
---|
| 2648 | #endif |
---|
| 2649 | if(node == bAig_One || node == bAig_Zero){ |
---|
| 2650 | return node; |
---|
| 2651 | } |
---|
| 2652 | |
---|
| 2653 | if(st_lookup(tmpTable,(char *)bAig_NonInvertedEdge(node),&v)){ |
---|
| 2654 | if(bAig_IsInverted(node)) |
---|
| 2655 | result = bAig_Not(v); |
---|
| 2656 | else |
---|
| 2657 | result = v; |
---|
| 2658 | |
---|
| 2659 | return result; |
---|
| 2660 | } |
---|
| 2661 | |
---|
| 2662 | left = PureSat_MapIPRecur(manager,leftChild(node),tmpTable); |
---|
| 2663 | right = PureSat_MapIPRecur(manager,rightChild(node),tmpTable); |
---|
| 2664 | |
---|
| 2665 | v = PureSat_And(manager,left,right); |
---|
| 2666 | isInverted = bAig_IsInverted(node); |
---|
| 2667 | result = isInverted ? bAig_Not(v) : v; |
---|
| 2668 | st_insert(tmpTable,(char *)bAig_NonInvertedEdge(node),(char *)v); |
---|
| 2669 | |
---|
| 2670 | //fprintf(vis_stdout,"return %d->%d\n",node,result); |
---|
| 2671 | return result; |
---|
| 2672 | } |
---|
| 2673 | |
---|
| 2674 | |
---|
| 2675 | |
---|
| 2676 | /**Function******************************************************************** |
---|
| 2677 | |
---|
| 2678 | Synopsis [Maping interpolant from a timeframe to another timeframe] |
---|
| 2679 | |
---|
| 2680 | Description [] |
---|
| 2681 | |
---|
| 2682 | SideEffects [] |
---|
| 2683 | |
---|
| 2684 | SeeAlso [] |
---|
| 2685 | |
---|
| 2686 | ******************************************************************************/ |
---|
| 2687 | |
---|
| 2688 | bAigEdge_t PureSat_MapIP(mAig_Manager_t *manager, |
---|
| 2689 | bAigEdge_t node, |
---|
| 2690 | int from, |
---|
| 2691 | int to) |
---|
| 2692 | { |
---|
| 2693 | bAigTimeFrame_t *tf = manager->timeframeWOI; |
---|
| 2694 | st_table *tmpTable = st_init_table(st_numcmp,st_numhash); |
---|
| 2695 | bAigEdge_t * L1,*L0,result,v1,v0; |
---|
| 2696 | int i; |
---|
| 2697 | |
---|
| 2698 | if(node==bAig_One||node==bAig_Zero) |
---|
| 2699 | return node; |
---|
| 2700 | |
---|
| 2701 | L1 = tf->latchInputs[from]; |
---|
| 2702 | L0 = tf->latchInputs[to]; |
---|
| 2703 | for(i=0;i<tf->nLatches;i++){ |
---|
| 2704 | v1 = L1[i]; |
---|
| 2705 | v0 = L0[i]; |
---|
| 2706 | if(SATisInverted(v1)){ |
---|
| 2707 | v1 = SATnot(v1); |
---|
| 2708 | v0 = SATnot(v0); |
---|
| 2709 | } |
---|
| 2710 | st_insert(tmpTable,(char*)v1,(char*)v0); |
---|
| 2711 | |
---|
| 2712 | } |
---|
| 2713 | L1 = tf->blatchInputs[from]; |
---|
| 2714 | L0 = tf->blatchInputs[to]; |
---|
| 2715 | for(i=0;i<tf->nbLatches;i++){ |
---|
| 2716 | v1 = L1[i]; |
---|
| 2717 | v0 = L0[i]; |
---|
| 2718 | if(SATisInverted(v1)){ |
---|
| 2719 | v1 = SATnot(v1); |
---|
| 2720 | v0 = SATnot(v0); |
---|
| 2721 | } |
---|
| 2722 | st_insert(tmpTable,(char*)v1,(char*)v0); |
---|
| 2723 | |
---|
| 2724 | } |
---|
| 2725 | |
---|
| 2726 | manager->class_ = to; |
---|
| 2727 | result = PureSat_MapIPRecur(manager,node,tmpTable); |
---|
| 2728 | |
---|
| 2729 | st_free_table(tmpTable); |
---|
| 2730 | |
---|
| 2731 | return result; |
---|
| 2732 | } |
---|
| 2733 | |
---|
| 2734 | |
---|
| 2735 | /**Function******************************************************************** |
---|
| 2736 | |
---|
| 2737 | Synopsis [process dummy nodes] |
---|
| 2738 | |
---|
| 2739 | Description [In UNSAT core, there may be dummy nodes, but in manager, |
---|
| 2740 | they don't exist any more. This funct is to mark them] |
---|
| 2741 | |
---|
| 2742 | SideEffects [] |
---|
| 2743 | |
---|
| 2744 | SeeAlso [] |
---|
| 2745 | |
---|
| 2746 | ******************************************************************************/ |
---|
| 2747 | |
---|
| 2748 | void PureSatProcessDummy(bAig_Manager_t *manager, |
---|
| 2749 | satManager_t *cm, |
---|
| 2750 | RTnode_t RTnode) |
---|
| 2751 | { |
---|
| 2752 | int i; |
---|
| 2753 | bAigEdge_t *lp,node; |
---|
| 2754 | RTManager_t *rm = cm->rm; |
---|
| 2755 | |
---|
| 2756 | if(RT_flag(RTnode)&RT_VisitedMask){ |
---|
| 2757 | return; |
---|
| 2758 | } |
---|
| 2759 | RT_flag(RTnode) |= RT_VisitedMask; |
---|
| 2760 | |
---|
| 2761 | if(RT_pivot(RTnode)==0){ /*leaf*/ |
---|
| 2762 | #if DBG |
---|
| 2763 | assert(RT_oriClsIdx(RTnode)==0); |
---|
| 2764 | #endif |
---|
| 2765 | if(RT_oriClsIdx(RTnode)) |
---|
| 2766 | lp = (long*)SATfirstLit(RT_oriClsIdx(RTnode)); |
---|
| 2767 | else |
---|
| 2768 | |
---|
| 2769 | lp = RT_formula(RTnode) + cm->rm->fArray; |
---|
| 2770 | for(i=0;i<RT_fSize(RTnode);i++,lp++){ |
---|
| 2771 | assert(*lp>0);/* not processed yet*/ |
---|
| 2772 | if(RT_oriClsIdx(RTnode))/*is CNF*/ |
---|
| 2773 | node = SATgetNode(*lp); |
---|
| 2774 | else /*is AIG*/ |
---|
| 2775 | node = *lp; |
---|
| 2776 | node = SATnormalNode(node); |
---|
| 2777 | if(node>=manager->nodesArraySize){ |
---|
| 2778 | #if DBG |
---|
| 2779 | assert(flags(node)&DummyMask); |
---|
| 2780 | #endif |
---|
| 2781 | *lp = DUMMY; |
---|
| 2782 | } |
---|
| 2783 | } |
---|
| 2784 | } /*leaf*/ |
---|
| 2785 | |
---|
| 2786 | /*not leaf*/ |
---|
| 2787 | else{ |
---|
| 2788 | if(RT_pivot(RTnode)>=manager->nodesArraySize){ |
---|
| 2789 | int class_ = bAig_Class(RT_pivot(RTnode)); |
---|
| 2790 | RT_pivot(RTnode) = DUMMY+class_; |
---|
| 2791 | } |
---|
| 2792 | PureSatProcessDummy(manager,cm,RT_left(RTnode)); |
---|
| 2793 | PureSatProcessDummy(manager,cm,RT_right(RTnode)); |
---|
| 2794 | } |
---|
| 2795 | |
---|
| 2796 | return ; |
---|
| 2797 | |
---|
| 2798 | } |
---|
| 2799 | |
---|
| 2800 | |
---|
| 2801 | /**Function******************************************************************** |
---|
| 2802 | |
---|
| 2803 | Synopsis [Find an aig node from its name] |
---|
| 2804 | |
---|
| 2805 | Description [] |
---|
| 2806 | |
---|
| 2807 | SideEffects [] |
---|
| 2808 | |
---|
| 2809 | SeeAlso [] |
---|
| 2810 | |
---|
| 2811 | ******************************************************************************/ |
---|
| 2812 | |
---|
| 2813 | |
---|
| 2814 | bAigEdge_t |
---|
| 2815 | PureSat_FindNodeByName( |
---|
| 2816 | bAig_Manager_t *manager, |
---|
| 2817 | nameType_t *name, |
---|
| 2818 | int bound) |
---|
| 2819 | { |
---|
| 2820 | |
---|
| 2821 | bAigEdge_t node; |
---|
| 2822 | |
---|
| 2823 | if (!st_lookup(manager->SymbolTableArray[bound], name, &node)){ |
---|
| 2824 | node = bAig_NULL; |
---|
| 2825 | } |
---|
| 2826 | |
---|
| 2827 | return bAig_GetCanonical(manager, node); |
---|
| 2828 | } |
---|
| 2829 | |
---|
| 2830 | |
---|
| 2831 | /**Function******************************************************************** |
---|
| 2832 | |
---|
| 2833 | Synopsis [Create Aig for a ltl formula] |
---|
| 2834 | |
---|
| 2835 | Description [] |
---|
| 2836 | |
---|
| 2837 | SideEffects [] |
---|
| 2838 | |
---|
| 2839 | SeeAlso [] |
---|
| 2840 | |
---|
| 2841 | ******************************************************************************/ |
---|
| 2842 | |
---|
| 2843 | bAigEdge_t |
---|
| 2844 | PureSatCreatebAigOfPropFormula( |
---|
| 2845 | Ntk_Network_t *network, |
---|
| 2846 | bAig_Manager_t *manager, |
---|
| 2847 | int bound, |
---|
| 2848 | Ctlsp_Formula_t *ltl, |
---|
| 2849 | int withInitialState) |
---|
| 2850 | { |
---|
| 2851 | int index; |
---|
| 2852 | bAigEdge_t result, left, right, *li; |
---|
| 2853 | bAigTimeFrame_t *timeframe; |
---|
| 2854 | |
---|
| 2855 | if (ltl == NIL(Ctlsp_Formula_t)) return bAig_NULL; |
---|
| 2856 | if (ltl->type == Ctlsp_TRUE_c) return bAig_One; |
---|
| 2857 | if (ltl->type == Ctlsp_FALSE_c) return bAig_Zero; |
---|
| 2858 | |
---|
| 2859 | assert(Ctlsp_isPropositionalFormula(ltl)); |
---|
| 2860 | |
---|
| 2861 | if(withInitialState) timeframe = manager->timeframe; |
---|
| 2862 | else timeframe = manager->timeframeWOI; |
---|
| 2863 | |
---|
| 2864 | if (ltl->type == Ctlsp_ID_c){ |
---|
| 2865 | char *nodeNameString = Ctlsp_FormulaReadVariableName(ltl); |
---|
| 2866 | char *nodeValueString = Ctlsp_FormulaReadValueName(ltl); |
---|
| 2867 | Ntk_Node_t *node = Ntk_NetworkFindNodeByName(network, nodeNameString); |
---|
| 2868 | |
---|
| 2869 | Var_Variable_t *nodeVar; |
---|
| 2870 | int nodeValue; |
---|
| 2871 | |
---|
| 2872 | MvfAig_Function_t *tmpMvfAig; |
---|
| 2873 | st_table *nodeToMvfAigTable; /* maps each node to its mvfAig */ |
---|
| 2874 | |
---|
| 2875 | if (node == NIL(Ntk_Node_t)) { |
---|
| 2876 | char *nameKey; |
---|
| 2877 | char tmpName[100]; |
---|
| 2878 | |
---|
| 2879 | sprintf(tmpName, "%s_%d", nodeNameString, bound); |
---|
| 2880 | nameKey = util_strsav(tmpName); |
---|
| 2881 | |
---|
| 2882 | result = PureSat_FindNodeByName(manager, nameKey,bound); |
---|
| 2883 | if(result == bAig_NULL){ |
---|
| 2884 | result = PureSat_CreateVarNode(manager, nameKey); |
---|
| 2885 | } else { |
---|
| 2886 | |
---|
| 2887 | FREE(nameKey); |
---|
| 2888 | } |
---|
| 2889 | return result; |
---|
| 2890 | } |
---|
| 2891 | |
---|
| 2892 | nodeToMvfAigTable = (st_table *) Ntk_NetworkReadApplInfo(network, MVFAIG_NETWORK_APPL_KEY); |
---|
| 2893 | assert(nodeToMvfAigTable != NIL(st_table)); |
---|
| 2894 | |
---|
| 2895 | tmpMvfAig = Bmc_ReadMvfAig(node, nodeToMvfAigTable); |
---|
| 2896 | if (tmpMvfAig == NIL(MvfAig_Function_t)){ |
---|
| 2897 | tmpMvfAig = Bmc_NodeBuildMVF(network, node); |
---|
| 2898 | array_free(tmpMvfAig); |
---|
| 2899 | tmpMvfAig = Bmc_ReadMvfAig(node, nodeToMvfAigTable); |
---|
| 2900 | } |
---|
| 2901 | |
---|
| 2902 | nodeVar = Ntk_NodeReadVariable(node); |
---|
| 2903 | if (Var_VariableTestIsSymbolic(nodeVar)) { |
---|
| 2904 | nodeValue = Var_VariableReadIndexFromSymbolicValue(nodeVar, nodeValueString); |
---|
| 2905 | if ( nodeValue == -1 ) { |
---|
| 2906 | (void) fprintf(vis_stderr, "Value specified in RHS is not in domain of variable\n"); |
---|
| 2907 | (void) fprintf(vis_stderr,"%s = %s\n", nodeNameString, nodeValueString); |
---|
| 2908 | return bAig_NULL; |
---|
| 2909 | } |
---|
| 2910 | } |
---|
| 2911 | else { |
---|
| 2912 | int check; |
---|
| 2913 | check = StringCheckIsInteger(nodeValueString, &nodeValue); |
---|
| 2914 | if( check == 0 ) { |
---|
| 2915 | (void) fprintf(vis_stderr,"Illegal value in the RHS\n"); |
---|
| 2916 | (void) fprintf(vis_stderr,"%s = %s\n", nodeNameString, nodeValueString); |
---|
| 2917 | return bAig_NULL; |
---|
| 2918 | } |
---|
| 2919 | if( check == 1 ) { |
---|
| 2920 | (void) fprintf(vis_stderr,"Value in the RHS is out of range of int\n"); |
---|
| 2921 | (void) fprintf(vis_stderr,"%s = %s", nodeNameString, nodeValueString); |
---|
| 2922 | return bAig_NULL; |
---|
| 2923 | } |
---|
| 2924 | if ( !(Var_VariableTestIsValueInRange(nodeVar, nodeValue))) { |
---|
| 2925 | (void) fprintf(vis_stderr,"Value specified in RHS is not in domain of variable\n"); |
---|
| 2926 | (void) fprintf(vis_stderr,"%s = %s\n", nodeNameString, nodeValueString); |
---|
| 2927 | return bAig_NULL; |
---|
| 2928 | |
---|
| 2929 | } |
---|
| 2930 | } |
---|
| 2931 | result = MvfAig_FunctionReadComponent(tmpMvfAig, nodeValue); |
---|
| 2932 | result = bAig_GetCanonical(manager, result); |
---|
| 2933 | if(st_lookup(timeframe->li2index, (char *)result, &index)) { |
---|
| 2934 | li = timeframe->latchInputs[bound]; |
---|
| 2935 | result = bAig_GetCanonical(manager, li[index]); |
---|
| 2936 | } |
---|
| 2937 | else if(st_lookup(timeframe->o2index, (char *)result, &index)) { |
---|
| 2938 | li = timeframe->outputs[bound]; |
---|
| 2939 | result = bAig_GetCanonical(manager, li[index]); |
---|
| 2940 | |
---|
| 2941 | } |
---|
| 2942 | else if(st_lookup(timeframe->i2index, (char *)result, &index)) { |
---|
| 2943 | li = timeframe->internals[bound]; |
---|
| 2944 | result = bAig_GetCanonical(manager, li[index]); |
---|
| 2945 | |
---|
| 2946 | } |
---|
| 2947 | return result; |
---|
| 2948 | } |
---|
| 2949 | |
---|
| 2950 | left = PureSatCreatebAigOfPropFormula(network, manager, bound, ltl->left, withInitialState); |
---|
| 2951 | if (left == bAig_NULL){ |
---|
| 2952 | return bAig_NULL; |
---|
| 2953 | } |
---|
| 2954 | right = PureSatCreatebAigOfPropFormula(network, manager, bound, ltl->right, withInitialState); |
---|
| 2955 | if (right == bAig_NULL && ltl->type ==Ctlsp_NOT_c ){ |
---|
| 2956 | return bAig_Not(left); |
---|
| 2957 | } |
---|
| 2958 | else if(right == bAig_NULL) { |
---|
| 2959 | return bAig_NULL; |
---|
| 2960 | } |
---|
| 2961 | |
---|
| 2962 | switch(ltl->type) { |
---|
| 2963 | |
---|
| 2964 | case Ctlsp_OR_c: |
---|
| 2965 | result = PureSat_Or(manager, left, right); |
---|
| 2966 | break; |
---|
| 2967 | case Ctlsp_AND_c: |
---|
| 2968 | result = PureSat_And(manager, left, right); |
---|
| 2969 | break; |
---|
| 2970 | case Ctlsp_THEN_c: |
---|
| 2971 | result = PureSat_Then(manager, left, right); |
---|
| 2972 | break; |
---|
| 2973 | case Ctlsp_EQ_c: |
---|
| 2974 | result = PureSat_Eq(manager, left, right); |
---|
| 2975 | break; |
---|
| 2976 | case Ctlsp_XOR_c: |
---|
| 2977 | result = PureSat_Xor(manager, left, right); |
---|
| 2978 | break; |
---|
| 2979 | default: |
---|
| 2980 | fail("Unexpected type"); |
---|
| 2981 | } |
---|
| 2982 | return result; |
---|
| 2983 | } /* BmcCirCUsCreatebAigOfPropFormula */ |
---|
| 2984 | |
---|
| 2985 | |
---|
| 2986 | |
---|
| 2987 | |
---|
| 2988 | /**Function******************************************************************** |
---|
| 2989 | |
---|
| 2990 | Synopsis [Mark all node between from and to with obj mask] |
---|
| 2991 | |
---|
| 2992 | Description [] |
---|
| 2993 | |
---|
| 2994 | SideEffects [] |
---|
| 2995 | |
---|
| 2996 | SeeAlso [] |
---|
| 2997 | |
---|
| 2998 | ******************************************************************************/ |
---|
| 2999 | |
---|
| 3000 | |
---|
| 3001 | |
---|
| 3002 | void PureSatMarkObj(bAig_Manager_t * manager, |
---|
| 3003 | long from, |
---|
| 3004 | long to) |
---|
| 3005 | { |
---|
| 3006 | long v; |
---|
| 3007 | |
---|
| 3008 | for(v=from;v<=to;v+=bAigNodeSize) |
---|
| 3009 | flags(v)|=ObjMask; |
---|
| 3010 | } |
---|
| 3011 | |
---|
| 3012 | |
---|
| 3013 | |
---|
| 3014 | /**Function******************************************************************** |
---|
| 3015 | |
---|
| 3016 | Synopsis [procedure of concretization] |
---|
| 3017 | |
---|
| 3018 | Description [] |
---|
| 3019 | |
---|
| 3020 | SideEffects [] |
---|
| 3021 | |
---|
| 3022 | SeeAlso [] |
---|
| 3023 | |
---|
| 3024 | ******************************************************************************/ |
---|
| 3025 | |
---|
| 3026 | |
---|
| 3027 | boolean PureSat_ConcretTest(Ntk_Network_t *network, |
---|
| 3028 | PureSat_Manager_t *pm, |
---|
| 3029 | array_t *sufArray, |
---|
| 3030 | bAigEdge_t property, |
---|
| 3031 | array_t *previousResultArray, |
---|
| 3032 | int Con, |
---|
| 3033 | int satStat, |
---|
| 3034 | int inc) |
---|
| 3035 | { |
---|
| 3036 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 3037 | int status,i,nodes_in_coi=0; |
---|
| 3038 | satManager_t *cm; |
---|
| 3039 | char *name; |
---|
| 3040 | double t1,t2; |
---|
| 3041 | satArray_t *saved; |
---|
| 3042 | st_table * SufAbsNameTable = st_init_table(strcmp,st_strhash); |
---|
| 3043 | bAigEdge_t from,*lp; |
---|
| 3044 | |
---|
| 3045 | arrayForEachItem(char *,sufArray,i,name){ |
---|
| 3046 | st_insert(SufAbsNameTable,name,(char*)0); |
---|
| 3047 | } |
---|
| 3048 | |
---|
| 3049 | manager->assertArray = sat_ArrayAlloc(1); |
---|
| 3050 | sat_ArrayInsert(manager->assertArray,manager->InitState); |
---|
| 3051 | cm = PureSat_SatManagerAlloc_WOCOI(manager,pm,property,previousResultArray); |
---|
| 3052 | |
---|
| 3053 | cm->option->coreGeneration = 0; |
---|
| 3054 | cm->option->RT = 0; |
---|
| 3055 | cm->option->AbRf = 1; |
---|
| 3056 | if(inc){ |
---|
| 3057 | cm->option->incTraceObjective = 1; |
---|
| 3058 | cm->savedConflictClauses = pm->savedConCls; |
---|
| 3059 | pm->savedConCls = 0; |
---|
| 3060 | } |
---|
| 3061 | t1 = util_cpu_ctime(); |
---|
| 3062 | PureSat_CleanMask(manager,ResetVisibleVarMask); |
---|
| 3063 | PuresatMarkVisibleVar(network,sufArray,pm,0,pm->Length+1); |
---|
| 3064 | if(!Con){ |
---|
| 3065 | from = manager->nodesArraySize; |
---|
| 3066 | PureSatSetCOI(network,pm,cm,SufAbsNameTable,0,pm->Length,pm->Length); |
---|
| 3067 | PureSatKillPseudoGV(network,pm,SufAbsNameTable,1,pm->Length); |
---|
| 3068 | if(inc){ |
---|
| 3069 | PureSatMarkObj(manager,from,manager->nodesArraySize-bAigNodeSize); |
---|
| 3070 | } |
---|
| 3071 | PureSat_ResetManager(manager,cm,0); |
---|
| 3072 | PureSatProcessFanout(cm); |
---|
| 3073 | } |
---|
| 3074 | else{ |
---|
| 3075 | sat_MarkTransitiveFaninForNode(cm,property,CoiMask); |
---|
| 3076 | sat_MarkTransitiveFaninForNode(cm,manager->InitState,CoiMask); |
---|
| 3077 | cm->option->AbRf = 0; |
---|
| 3078 | } |
---|
| 3079 | t2 = util_cpu_ctime(); |
---|
| 3080 | pm->tPro += t2-t1; |
---|
| 3081 | if(pm->verbosity>=2) |
---|
| 3082 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
| 3083 | (double)((t2-t1)/1000.0),pm->tPro/1000); |
---|
| 3084 | if(pm->verbosity>=1){ |
---|
| 3085 | nodes_in_coi = PureSat_CountNodesInCoi(cm); |
---|
| 3086 | fprintf(vis_stdout,"There are %d node in COI\n",nodes_in_coi); |
---|
| 3087 | } |
---|
| 3088 | st_free_table(SufAbsNameTable); |
---|
| 3089 | manager->assertArray2 = cm->assertArray2; |
---|
| 3090 | sat_Main(cm); |
---|
| 3091 | if(satStat) |
---|
| 3092 | sat_ReportStatistics(cm,cm->each); |
---|
| 3093 | cm->option->AbRf = 1; |
---|
| 3094 | manager->NodesArray = cm->nodesArray; |
---|
| 3095 | t1 = util_cpu_ctime(); |
---|
| 3096 | if(!Con){ |
---|
| 3097 | PureSatRecoverFanout(cm,pm); |
---|
| 3098 | PureSat_RestoreAigForDummyNode(manager,pm->oldPos); |
---|
| 3099 | PureSat_CleanMask(manager,ResetVisited3Mask); |
---|
| 3100 | } |
---|
| 3101 | /*record conflict*/ |
---|
| 3102 | if(inc && cm->savedConflictClauses ){ |
---|
| 3103 | if(!Con){ |
---|
| 3104 | int num=0; |
---|
| 3105 | saved = cm->savedConflictClauses; |
---|
| 3106 | pm->savedConCls = sat_ArrayAlloc(1); |
---|
| 3107 | for(i=0, lp=saved->space; i<saved->num; i++, lp++){ |
---|
| 3108 | sat_ArrayInsert(pm->savedConCls,*lp); |
---|
| 3109 | if(*lp<0) |
---|
| 3110 | num++; |
---|
| 3111 | } |
---|
| 3112 | assert(num%2==0); |
---|
| 3113 | if(pm->verbosity>=2) |
---|
| 3114 | fprintf(vis_stdout,"record %d ConCls for incremental concretization\n",num/2); |
---|
| 3115 | } |
---|
| 3116 | else |
---|
| 3117 | pm->savedConCls = 0; |
---|
| 3118 | sat_ArrayFree(cm->savedConflictClauses); |
---|
| 3119 | cm->savedConflictClauses = 0; |
---|
| 3120 | } |
---|
| 3121 | t2 = util_cpu_ctime(); |
---|
| 3122 | pm->tPro += t2-t1; |
---|
| 3123 | if(pm->verbosity>=2) |
---|
| 3124 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
| 3125 | (double)((t2-t1)/1000.0),pm->tPro/1000); |
---|
| 3126 | sat_ArrayFree(manager->assertArray); |
---|
| 3127 | status = cm->status; |
---|
| 3128 | cm->option->coreGeneration = 1; |
---|
| 3129 | PureSat_SatFreeManager(cm); |
---|
| 3130 | if(status == SAT_SAT){ |
---|
| 3131 | if(pm->verbosity>=1) |
---|
| 3132 | fprintf(vis_stdout,"CEX exist\n"); |
---|
| 3133 | return FALSE; /* cex exists*/ |
---|
| 3134 | } |
---|
| 3135 | else{ |
---|
| 3136 | if(pm->verbosity>=1) |
---|
| 3137 | fprintf(vis_stdout,"no CEX\n"); |
---|
| 3138 | return TRUE; /* no cex*/ |
---|
| 3139 | } |
---|
| 3140 | |
---|
| 3141 | } |
---|
| 3142 | |
---|
| 3143 | |
---|
| 3144 | |
---|
| 3145 | /**Function******************************************************************** |
---|
| 3146 | |
---|
| 3147 | Synopsis [Concretization procedure for unsat proof-based refinement minimization] |
---|
| 3148 | |
---|
| 3149 | Description [] |
---|
| 3150 | |
---|
| 3151 | SideEffects [] |
---|
| 3152 | |
---|
| 3153 | SeeAlso [] |
---|
| 3154 | |
---|
| 3155 | ******************************************************************************/ |
---|
| 3156 | |
---|
| 3157 | |
---|
| 3158 | |
---|
| 3159 | boolean PureSat_ConcretTest_Core(Ntk_Network_t *network, |
---|
| 3160 | PureSat_Manager_t *pm, |
---|
| 3161 | array_t *sufArray, |
---|
| 3162 | bAigEdge_t property, |
---|
| 3163 | array_t *previousResultArray, |
---|
| 3164 | st_table * junkTable) |
---|
| 3165 | { |
---|
| 3166 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 3167 | int status,i,nodes_in_coi=0; |
---|
| 3168 | satManager_t *cm; |
---|
| 3169 | char *name; |
---|
| 3170 | double t1,t2; |
---|
| 3171 | st_table * SufAbsNameTable = st_init_table(strcmp,st_strhash); |
---|
| 3172 | array_t * tmpRef1; |
---|
| 3173 | st_table *refTable = st_init_table(strcmp,st_strhash); |
---|
| 3174 | |
---|
| 3175 | arrayForEachItem(char *,sufArray,i,name){ |
---|
| 3176 | st_insert(SufAbsNameTable,name,(char*)0); |
---|
| 3177 | } |
---|
| 3178 | |
---|
| 3179 | manager->assertArray = sat_ArrayAlloc(1); |
---|
| 3180 | sat_ArrayInsert(manager->assertArray,manager->InitState); |
---|
| 3181 | cm = PureSat_SatManagerAlloc_WOCOI(manager,pm,property,previousResultArray); |
---|
| 3182 | cm->option->coreGeneration = 1; |
---|
| 3183 | cm->option->AbRf = 1; |
---|
| 3184 | cm->option->IP = 1; |
---|
| 3185 | t1 = util_cpu_ctime(); |
---|
| 3186 | PureSat_CleanMask(manager,ResetVisibleVarMask); |
---|
| 3187 | PuresatMarkVisibleVarWithVPGV(network,sufArray,pm,0,pm->Length+1); |
---|
| 3188 | |
---|
| 3189 | PureSatSetCOI(network,pm,cm,SufAbsNameTable,0,pm->Length,pm->Length); |
---|
| 3190 | PureSatKillPseudoGV(network,pm,SufAbsNameTable,1,pm->Length); |
---|
| 3191 | PureSat_ResetManager(manager,cm,0); |
---|
| 3192 | PureSatProcessFanout(cm); |
---|
| 3193 | |
---|
| 3194 | t2 = util_cpu_ctime(); |
---|
| 3195 | pm->tPro += t2-t1; |
---|
| 3196 | if(pm->verbosity>=2) |
---|
| 3197 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
| 3198 | (double)((t2-t1)/1000.0),pm->tPro/1000); |
---|
| 3199 | if(pm->verbosity>=1){ |
---|
| 3200 | nodes_in_coi = PureSat_CountNodesInCoi(cm); |
---|
| 3201 | fprintf(vis_stdout,"There are %d node in COI\n",nodes_in_coi); |
---|
| 3202 | } |
---|
| 3203 | manager->assertArray2 = cm->assertArray2; |
---|
| 3204 | sat_Main(cm); |
---|
| 3205 | manager->NodesArray = cm->nodesArray; |
---|
| 3206 | t1 = util_cpu_ctime(); |
---|
| 3207 | PureSatRecoverFanout(cm,pm); |
---|
| 3208 | PureSat_RestoreAigForDummyNode(manager,pm->oldPos); |
---|
| 3209 | PureSat_CleanMask(manager,ResetVisited3Mask); |
---|
| 3210 | if(cm->status==SAT_UNSAT){ |
---|
| 3211 | PureSatProcessDummy(manager,cm,cm->rm->root); |
---|
| 3212 | ResetRTree(cm->rm); |
---|
| 3213 | } |
---|
| 3214 | t2 = util_cpu_ctime(); |
---|
| 3215 | pm->tPro += t2-t1; |
---|
| 3216 | if(pm->verbosity>=2) |
---|
| 3217 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
| 3218 | (double)((t2-t1)/1000.0),pm->tPro/1000); |
---|
| 3219 | |
---|
| 3220 | if(cm->status==SAT_UNSAT){ |
---|
| 3221 | tmpRef1 = PureSat_GetSufAbsFromCore(network,cm,pm,property,SufAbsNameTable); |
---|
| 3222 | |
---|
| 3223 | arrayForEachItem(char*,tmpRef1,i,name) |
---|
| 3224 | st_insert(refTable,name,(char*)0); |
---|
| 3225 | |
---|
| 3226 | arrayForEachItem(char*,sufArray,i,name){ |
---|
| 3227 | if(!st_lookup(refTable,name,NIL(char*))&& |
---|
| 3228 | !st_lookup(pm->vertexTable,name,NIL(char*))){ |
---|
| 3229 | if(pm->verbosity>=2) |
---|
| 3230 | fprintf(vis_stdout,"%s can be gotten rid of\n",name); |
---|
| 3231 | st_insert(junkTable,name,(char*)0); |
---|
| 3232 | } |
---|
| 3233 | } |
---|
| 3234 | array_free(tmpRef1); |
---|
| 3235 | } |
---|
| 3236 | |
---|
| 3237 | st_free_table(SufAbsNameTable); |
---|
| 3238 | st_free_table(refTable); |
---|
| 3239 | RT_Free(cm->rm); |
---|
| 3240 | sat_ArrayFree(manager->assertArray); |
---|
| 3241 | status = cm->status; |
---|
| 3242 | cm->option->coreGeneration = 1; |
---|
| 3243 | PureSat_SatFreeManager(cm); |
---|
| 3244 | if(status == SAT_SAT){ |
---|
| 3245 | if(pm->verbosity>=1) |
---|
| 3246 | fprintf(vis_stdout,"CEX exist\n"); |
---|
| 3247 | return FALSE; // cex exists |
---|
| 3248 | } |
---|
| 3249 | else{ |
---|
| 3250 | if(pm->verbosity>=1) |
---|
| 3251 | fprintf(vis_stdout,"no CEX\n"); |
---|
| 3252 | return TRUE; // no cex |
---|
| 3253 | } |
---|
| 3254 | |
---|
| 3255 | } |
---|
| 3256 | |
---|
| 3257 | |
---|
| 3258 | /**Function******************************************************************** |
---|
| 3259 | |
---|
| 3260 | Synopsis [Generate BFS ring for a network node] |
---|
| 3261 | |
---|
| 3262 | Description [] |
---|
| 3263 | |
---|
| 3264 | SideEffects [] |
---|
| 3265 | |
---|
| 3266 | SeeAlso [] |
---|
| 3267 | |
---|
| 3268 | ******************************************************************************/ |
---|
| 3269 | |
---|
| 3270 | |
---|
| 3271 | void PureSatGenerateRingForNode(Ntk_Network_t *network, |
---|
| 3272 | PureSat_Manager_t *pm, |
---|
| 3273 | Ntk_Node_t * node1, |
---|
| 3274 | array_t * ringArray, |
---|
| 3275 | int *dfs) |
---|
| 3276 | { |
---|
| 3277 | Ntk_Node_t *node; |
---|
| 3278 | char *name; |
---|
| 3279 | int i; |
---|
| 3280 | |
---|
| 3281 | if(PureSatNodeReadColor(node1) == dfsBlack_c) |
---|
| 3282 | return; |
---|
| 3283 | PureSatNodeSetColor(node1,dfsBlack_c); |
---|
| 3284 | if(Ntk_NodeTestIsLatch(node1)){ |
---|
| 3285 | name = Ntk_NodeReadName(node1); |
---|
| 3286 | st_insert(pm->node2dfsTable,name,(char*)(long)(*dfs)); |
---|
| 3287 | array_insert_last(char *,ringArray,name); |
---|
| 3288 | return; |
---|
| 3289 | } |
---|
| 3290 | |
---|
| 3291 | Ntk_NodeForEachFanin(node1,i,node){ |
---|
| 3292 | PureSatGenerateRingForNode(network,pm,node,ringArray, |
---|
| 3293 | dfs); |
---|
| 3294 | } |
---|
| 3295 | return; |
---|
| 3296 | } |
---|
| 3297 | |
---|
| 3298 | |
---|
| 3299 | /**Function******************************************************************** |
---|
| 3300 | |
---|
| 3301 | Synopsis [Generate BFS ring for one array] |
---|
| 3302 | |
---|
| 3303 | Description [] |
---|
| 3304 | |
---|
| 3305 | SideEffects [] |
---|
| 3306 | |
---|
| 3307 | SeeAlso [] |
---|
| 3308 | |
---|
| 3309 | ******************************************************************************/ |
---|
| 3310 | |
---|
| 3311 | array_t * PureSatGenerateRing(Ntk_Network_t *network, |
---|
| 3312 | PureSat_Manager_t *pm, |
---|
| 3313 | array_t * coreArray, |
---|
| 3314 | int * dfs) |
---|
| 3315 | { |
---|
| 3316 | array_t * ringArray = array_alloc(char *,0); |
---|
| 3317 | int i,j; |
---|
| 3318 | char *name; |
---|
| 3319 | Ntk_Node_t *node1,*node; |
---|
| 3320 | |
---|
| 3321 | arrayForEachItem(char *,coreArray,i,name){ |
---|
| 3322 | node1 = Ntk_NetworkFindNodeByName(network,name); |
---|
| 3323 | Ntk_NodeForEachFanin(node1,j,node){ |
---|
| 3324 | PureSatGenerateRingForNode(network,pm,node, |
---|
| 3325 | ringArray,dfs); |
---|
| 3326 | } |
---|
| 3327 | } |
---|
| 3328 | return ringArray; |
---|
| 3329 | } |
---|
| 3330 | |
---|
| 3331 | |
---|
| 3332 | /**Function******************************************************************** |
---|
| 3333 | |
---|
| 3334 | Synopsis [Generate the ring information for the whole circuit] |
---|
| 3335 | |
---|
| 3336 | Description [] |
---|
| 3337 | |
---|
| 3338 | SideEffects [] |
---|
| 3339 | |
---|
| 3340 | SeeAlso [] |
---|
| 3341 | |
---|
| 3342 | ******************************************************************************/ |
---|
| 3343 | |
---|
| 3344 | void PureSatGenerateDfs(Ntk_Network_t *network, |
---|
| 3345 | PureSat_Manager_t *pm, |
---|
| 3346 | array_t * vertexArray) |
---|
| 3347 | { |
---|
| 3348 | |
---|
| 3349 | int dfs = 1,i,ct=0; |
---|
| 3350 | char *name; |
---|
| 3351 | Ntk_Node_t *node; |
---|
| 3352 | array_t * ringArray = array_alloc(char *,0); |
---|
| 3353 | array_t * coreArray; |
---|
| 3354 | lsGen gen; |
---|
| 3355 | st_generator * stgen; |
---|
| 3356 | |
---|
| 3357 | Ntk_NetworkForEachNode( network, gen, node ) { |
---|
| 3358 | PureSatNodeSetColor( node, dfsWhite_c ); |
---|
| 3359 | } |
---|
| 3360 | |
---|
| 3361 | arrayForEachItem(char *,vertexArray,i,name){ |
---|
| 3362 | st_insert(pm->node2dfsTable,name,(char*)(long)dfs); |
---|
| 3363 | node = Ntk_NetworkFindNodeByName(network,name); |
---|
| 3364 | PureSatNodeSetColor(node,dfsBlack_c); |
---|
| 3365 | ct++; |
---|
| 3366 | } |
---|
| 3367 | |
---|
| 3368 | coreArray = array_dup(vertexArray); |
---|
| 3369 | |
---|
| 3370 | while(coreArray->num>0){ |
---|
| 3371 | dfs++; |
---|
| 3372 | ringArray = PureSatGenerateRing(network,pm,coreArray, |
---|
| 3373 | &dfs); |
---|
| 3374 | arrayForEachItem(char*,ringArray,i,name){ |
---|
| 3375 | st_insert(pm->node2dfsTable,name,(char*)(long)dfs); |
---|
| 3376 | |
---|
| 3377 | ct++; |
---|
| 3378 | } |
---|
| 3379 | array_free(coreArray); |
---|
| 3380 | coreArray = ringArray; |
---|
| 3381 | } |
---|
| 3382 | |
---|
| 3383 | st_foreach_item(pm->CoiTable,stgen,&node,NIL(char*)){ |
---|
| 3384 | name = Ntk_NodeReadName(node); |
---|
| 3385 | if(!st_lookup(pm->node2dfsTable,name,NIL(char*))){ |
---|
| 3386 | st_insert(pm->node2dfsTable,name,(char*)LARGEDFS); |
---|
| 3387 | if(pm->verbosity>=2) |
---|
| 3388 | fprintf(vis_stdout,"%s LARGEDFS is inserted into node2dfsTable\n",name); |
---|
| 3389 | } |
---|
| 3390 | } |
---|
| 3391 | |
---|
| 3392 | return; |
---|
| 3393 | |
---|
| 3394 | } |
---|
| 3395 | |
---|
| 3396 | /**Function******************************************************************** |
---|
| 3397 | |
---|
| 3398 | Synopsis [Sort latch candidate based on BFS ring and RC information] |
---|
| 3399 | |
---|
| 3400 | Description [] |
---|
| 3401 | |
---|
| 3402 | SideEffects [] |
---|
| 3403 | |
---|
| 3404 | SeeAlso [] |
---|
| 3405 | |
---|
| 3406 | ******************************************************************************/ |
---|
| 3407 | |
---|
| 3408 | |
---|
| 3409 | array_t * PureSatComputeOrder_2(Ntk_Network_t *network, |
---|
| 3410 | PureSat_Manager_t *pm, |
---|
| 3411 | array_t * vertexArray, |
---|
| 3412 | array_t * invisibleArray, |
---|
| 3413 | int * sccArray, |
---|
| 3414 | int * NumInSecondLevel) |
---|
| 3415 | { |
---|
| 3416 | |
---|
| 3417 | array_t * RCArray; |
---|
| 3418 | |
---|
| 3419 | PureSatGenerateDfs(network,pm,vertexArray); |
---|
| 3420 | RCArray = PureSatGenerateRCArray_2(network,pm,invisibleArray, |
---|
| 3421 | NumInSecondLevel); |
---|
| 3422 | |
---|
| 3423 | return RCArray; |
---|
| 3424 | } |
---|
| 3425 | |
---|
| 3426 | |
---|
| 3427 | |
---|
| 3428 | /**Function******************************************************************** |
---|
| 3429 | |
---|
| 3430 | Synopsis [Some latches have the same aig node, add them all to |
---|
| 3431 | abstractions once one is added. ] |
---|
| 3432 | |
---|
| 3433 | Description [] |
---|
| 3434 | |
---|
| 3435 | SideEffects [] |
---|
| 3436 | |
---|
| 3437 | SeeAlso [] |
---|
| 3438 | |
---|
| 3439 | ******************************************************************************/ |
---|
| 3440 | |
---|
| 3441 | void PureSatAddIdenLatchToAbs(Ntk_Network_t *network, |
---|
| 3442 | PureSat_Manager_t *pm, |
---|
| 3443 | array_t *nameArray) |
---|
| 3444 | { |
---|
| 3445 | int i; |
---|
| 3446 | st_generator * stgen; |
---|
| 3447 | st_table* table; |
---|
| 3448 | char *name,*name1; |
---|
| 3449 | st_table *table1 = st_init_table(st_ptrcmp,st_ptrhash); |
---|
| 3450 | array_t * tmpArray = array_alloc(char*,0); |
---|
| 3451 | |
---|
| 3452 | st_foreach_item(pm->vertexTable,stgen,&name,NIL(char*)) |
---|
| 3453 | st_insert(table1,name,(char*)0); |
---|
| 3454 | arrayForEachItem(char*,nameArray,i,name) |
---|
| 3455 | st_insert(table1,name,(char*)0); |
---|
| 3456 | |
---|
| 3457 | arrayForEachItem(char*,nameArray,i,name){ |
---|
| 3458 | |
---|
| 3459 | if(st_lookup(pm->IdenLatchTable,name,&table)){ |
---|
| 3460 | st_foreach_item(table,stgen,&name1,NIL(char*)){ |
---|
| 3461 | if(!st_lookup(table1,name1,NIL(char*))){ |
---|
| 3462 | st_insert(table1,name1,(char*)0); |
---|
| 3463 | array_insert_last(char*,tmpArray,name1); |
---|
| 3464 | } |
---|
| 3465 | } |
---|
| 3466 | } |
---|
| 3467 | } |
---|
| 3468 | |
---|
| 3469 | arrayForEachItem(char*,tmpArray,i,name){ |
---|
| 3470 | array_insert_last(char*,nameArray,name); |
---|
| 3471 | if(pm->verbosity>=2) |
---|
| 3472 | fprintf(vis_stdout,"add %s to refineArray\n",name); |
---|
| 3473 | } |
---|
| 3474 | |
---|
| 3475 | array_free(tmpArray); |
---|
| 3476 | st_free_table(table1); |
---|
| 3477 | } |
---|
| 3478 | |
---|
| 3479 | |
---|
| 3480 | /**Function******************************************************************** |
---|
| 3481 | |
---|
| 3482 | Synopsis [Create initial abstraction from aig] |
---|
| 3483 | |
---|
| 3484 | Description [] |
---|
| 3485 | |
---|
| 3486 | SideEffects [] |
---|
| 3487 | |
---|
| 3488 | SeeAlso [] |
---|
| 3489 | |
---|
| 3490 | ******************************************************************************/ |
---|
| 3491 | void |
---|
| 3492 | PureSatCreateInitAbsByAIG(bAig_Manager_t *manager, |
---|
| 3493 | PureSat_Manager_t *pm, |
---|
| 3494 | bAigEdge_t node, |
---|
| 3495 | st_table * tmpTable) |
---|
| 3496 | { |
---|
| 3497 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 3498 | char * name; |
---|
| 3499 | st_table * table; |
---|
| 3500 | st_generator * stgen; |
---|
| 3501 | |
---|
| 3502 | if(node==bAig_NULL) |
---|
| 3503 | return; |
---|
| 3504 | |
---|
| 3505 | node = bAig_NonInvertedEdge(node); |
---|
| 3506 | |
---|
| 3507 | if(flags(node)&VisitedMask) |
---|
| 3508 | return; |
---|
| 3509 | |
---|
| 3510 | flags(node) |= VisitedMask; |
---|
| 3511 | |
---|
| 3512 | |
---|
| 3513 | if(flags(node)&StateBitMask){ |
---|
| 3514 | if(!st_lookup(tf->MultiLatchTable,(char*)node,&table)){ |
---|
| 3515 | int retVal = st_lookup(tf->idx2name,(char*)node,&name); |
---|
| 3516 | assert(retVal); |
---|
| 3517 | if(!st_lookup(tmpTable,name,NIL(char*))){ |
---|
| 3518 | st_insert(tmpTable,name,(char*)0); |
---|
| 3519 | |
---|
| 3520 | } |
---|
| 3521 | } |
---|
| 3522 | else{ |
---|
| 3523 | st_foreach_item(table,stgen,&name,NIL(char*)){ |
---|
| 3524 | if(!st_lookup(tmpTable,name,NIL(char*))){ |
---|
| 3525 | st_insert(tmpTable,name,(char*)0); |
---|
| 3526 | |
---|
| 3527 | } |
---|
| 3528 | } |
---|
| 3529 | } |
---|
| 3530 | } |
---|
| 3531 | |
---|
| 3532 | if(flags(node)&StateBitMask) |
---|
| 3533 | return; |
---|
| 3534 | |
---|
| 3535 | PureSatCreateInitAbsByAIG(manager,pm,leftChild(node),tmpTable); |
---|
| 3536 | PureSatCreateInitAbsByAIG(manager,pm,rightChild(node),tmpTable); |
---|
| 3537 | } |
---|
| 3538 | |
---|
| 3539 | |
---|
| 3540 | /**Function******************************************************************** |
---|
| 3541 | |
---|
| 3542 | Synopsis [Get support latches for one aig node] |
---|
| 3543 | |
---|
| 3544 | Description [] |
---|
| 3545 | |
---|
| 3546 | SideEffects [] |
---|
| 3547 | |
---|
| 3548 | SeeAlso [] |
---|
| 3549 | |
---|
| 3550 | ******************************************************************************/ |
---|
| 3551 | |
---|
| 3552 | |
---|
| 3553 | void |
---|
| 3554 | PureSat_GetLatchForNode(bAig_Manager_t *manager, |
---|
| 3555 | PureSat_Manager_t *pm, |
---|
| 3556 | bAigEdge_t node, |
---|
| 3557 | array_t * nameArray, |
---|
| 3558 | st_table *tmpTable, |
---|
| 3559 | int cut) |
---|
| 3560 | { |
---|
| 3561 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 3562 | char * name; |
---|
| 3563 | st_table * table; |
---|
| 3564 | st_generator * stgen; |
---|
| 3565 | |
---|
| 3566 | if(node==bAig_NULL) |
---|
| 3567 | return; |
---|
| 3568 | |
---|
| 3569 | node = bAig_NonInvertedEdge(node); |
---|
| 3570 | |
---|
| 3571 | if(flags(node)&VisitedMask) |
---|
| 3572 | return; |
---|
| 3573 | |
---|
| 3574 | flags(node) |= VisitedMask; |
---|
| 3575 | |
---|
| 3576 | |
---|
| 3577 | if(flags(node)&StateBitMask){ |
---|
| 3578 | if(!st_lookup(tf->MultiLatchTable,(char*)node,&table)){ |
---|
| 3579 | int retVal = st_lookup(tf->idx2name,(char*)node,&name); |
---|
| 3580 | assert(retVal); |
---|
| 3581 | if(!st_lookup(tmpTable,name,NIL(char*))){ |
---|
| 3582 | st_insert(tmpTable,name,(char*)0); |
---|
| 3583 | array_insert_last(char *,nameArray,name); |
---|
| 3584 | if(pm->verbosity>=2) |
---|
| 3585 | fprintf(vis_stdout,"insert %s\n",name); |
---|
| 3586 | } |
---|
| 3587 | } |
---|
| 3588 | else{ |
---|
| 3589 | st_foreach_item(table,stgen,&name,NIL(char*)){ |
---|
| 3590 | if(!st_lookup(tmpTable,name,NIL(char*))){ |
---|
| 3591 | st_insert(tmpTable,name,(char*)0); |
---|
| 3592 | array_insert_last(char *,nameArray,name); |
---|
| 3593 | if(pm->verbosity>=2) |
---|
| 3594 | fprintf(vis_stdout,"insert %s\n",name); |
---|
| 3595 | } |
---|
| 3596 | } |
---|
| 3597 | } |
---|
| 3598 | } |
---|
| 3599 | |
---|
| 3600 | if(cut==2){ |
---|
| 3601 | if(flags(node)&Visited2Mask) |
---|
| 3602 | return; |
---|
| 3603 | } |
---|
| 3604 | else{ |
---|
| 3605 | if(cut==1){ |
---|
| 3606 | if(flags(node)&Visited3Mask) |
---|
| 3607 | return; |
---|
| 3608 | } |
---|
| 3609 | else{ |
---|
| 3610 | fprintf(vis_stdout,"wrong cut\n"); |
---|
| 3611 | exit(0); |
---|
| 3612 | } |
---|
| 3613 | } |
---|
| 3614 | |
---|
| 3615 | PureSat_GetLatchForNode(manager,pm,leftChild(node),nameArray,tmpTable,cut); |
---|
| 3616 | PureSat_GetLatchForNode(manager,pm,rightChild(node),nameArray,tmpTable,cut); |
---|
| 3617 | } |
---|
| 3618 | |
---|
| 3619 | |
---|
| 3620 | /**Function******************************************************************** |
---|
| 3621 | |
---|
| 3622 | Synopsis [Get COI reduction based on aig, not ntk] |
---|
| 3623 | |
---|
| 3624 | Description [] |
---|
| 3625 | |
---|
| 3626 | SideEffects [] |
---|
| 3627 | |
---|
| 3628 | SeeAlso [] |
---|
| 3629 | |
---|
| 3630 | ******************************************************************************/ |
---|
| 3631 | |
---|
| 3632 | st_table * PureSatGetAigCoi(Ntk_Network_t *network, |
---|
| 3633 | PureSat_Manager_t *pm, |
---|
| 3634 | bAigEdge_t property) |
---|
| 3635 | { |
---|
| 3636 | bAig_Manager_t *manager; |
---|
| 3637 | st_table * node2MvfAigTable,*tmpTable; |
---|
| 3638 | array_t * nameArray,*nameArray1; |
---|
| 3639 | bAigTimeFrame_t *tf; |
---|
| 3640 | char * name; |
---|
| 3641 | Ntk_Node_t *latch; |
---|
| 3642 | MvfAig_Function_t *mvfAig; |
---|
| 3643 | mAigMvar_t lmVar; |
---|
| 3644 | mAigBvar_t bVar; |
---|
| 3645 | array_t *bVarList,*mVarList; |
---|
| 3646 | int i,j,lmAigId; |
---|
| 3647 | long index,index1; |
---|
| 3648 | bAigEdge_t v, *li, *bli; |
---|
| 3649 | |
---|
| 3650 | manager = Ntk_NetworkReadMAigManager(network); |
---|
| 3651 | if (manager == NIL(mAig_Manager_t)) { |
---|
| 3652 | (void) fprintf(vis_stdout, |
---|
| 3653 | "** bmc error: run build_partition_maigs command first\n"); |
---|
| 3654 | exit(0);; |
---|
| 3655 | } |
---|
| 3656 | node2MvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, |
---|
| 3657 | MVFAIG_NETWORK_APPL_KEY); |
---|
| 3658 | tf = manager->timeframeWOI; |
---|
| 3659 | |
---|
| 3660 | bVarList = mAigReadBinVarList(manager); |
---|
| 3661 | mVarList = mAigReadMulVarList(manager); |
---|
| 3662 | |
---|
| 3663 | assert(manager->timeframeWOI->currentTimeframe>=2); |
---|
| 3664 | PureSat_CleanMask(manager,ResetVisitedMask); |
---|
| 3665 | PureSat_CleanMask(manager,ResetVisited2Mask); |
---|
| 3666 | PureSat_CleanMask(manager,ResetVisited3Mask); |
---|
| 3667 | li = tf->latchInputs[1]; |
---|
| 3668 | for(i=0;i<tf->nLatches;i++) |
---|
| 3669 | flags(li[i])|=Visited3Mask; |
---|
| 3670 | li = tf->blatchInputs[1]; |
---|
| 3671 | for(i=0;i<tf->nbLatches;i++) |
---|
| 3672 | flags(li[i])|=Visited3Mask; |
---|
| 3673 | li = tf->latchInputs[2]; |
---|
| 3674 | for(i=0;i<tf->nLatches;i++) |
---|
| 3675 | flags(li[i])|=Visited2Mask; |
---|
| 3676 | li = tf->blatchInputs[2]; |
---|
| 3677 | for(i=0;i<tf->nbLatches;i++) |
---|
| 3678 | flags(li[i])|=Visited2Mask; |
---|
| 3679 | |
---|
| 3680 | nameArray = array_alloc(char *,0); |
---|
| 3681 | tmpTable = st_init_table(st_ptrcmp,st_ptrhash); |
---|
| 3682 | PureSat_GetLatchForNode(manager,pm,property,nameArray,tmpTable,2); |
---|
| 3683 | PureSat_CleanMask(manager,ResetVisitedMask); |
---|
| 3684 | |
---|
| 3685 | |
---|
| 3686 | li = tf->latchInputs[2]; |
---|
| 3687 | bli = tf->blatchInputs[2]; |
---|
| 3688 | while(nameArray->num>0){ |
---|
| 3689 | nameArray1 = nameArray; |
---|
| 3690 | nameArray = array_alloc(char *,0); |
---|
| 3691 | arrayForEachItem(char*,nameArray1,i,name){ |
---|
| 3692 | latch = Ntk_NetworkFindNodeByName(network,name); |
---|
| 3693 | st_lookup(node2MvfAigTable,latch,&mvfAig); |
---|
| 3694 | for(j=0;j<mvfAig->num;j++){ |
---|
| 3695 | int retVal; |
---|
| 3696 | v = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(mvfAig,j)); |
---|
| 3697 | if(v==bAig_Zero||v==bAig_One) |
---|
| 3698 | continue; |
---|
| 3699 | retVal = st_lookup(tf->li2index,(char*)v,&index); |
---|
| 3700 | assert(retVal); |
---|
| 3701 | if(li[index]==bAig_Zero||li[index]==bAig_One) |
---|
| 3702 | continue; |
---|
| 3703 | PureSat_GetLatchForNode(manager,pm,li[index],nameArray,tmpTable,1); |
---|
| 3704 | } |
---|
| 3705 | |
---|
| 3706 | |
---|
| 3707 | lmAigId = Ntk_NodeReadMAigId(latch); |
---|
| 3708 | lmVar = array_fetch(mAigMvar_t, mVarList,lmAigId); |
---|
| 3709 | for(j=0,index1=lmVar.bVars;j<lmVar.encodeLength;j++,index1++){ |
---|
| 3710 | int retVal; |
---|
| 3711 | bVar = array_fetch(mAigBvar_t,bVarList,index1); |
---|
| 3712 | if(bVar.node==bAig_Zero||bVar.node==bAig_One) |
---|
| 3713 | continue; |
---|
| 3714 | retVal = st_lookup(tf->bli2index,(char*)bVar.node,&index); |
---|
| 3715 | assert(retVal); |
---|
| 3716 | if(bli[index]==bAig_Zero||bli[index]==bAig_One) |
---|
| 3717 | continue; |
---|
| 3718 | PureSat_GetLatchForNode(manager,pm,bli[index],nameArray,tmpTable,1); |
---|
| 3719 | } |
---|
| 3720 | } |
---|
| 3721 | |
---|
| 3722 | array_free(nameArray1); |
---|
| 3723 | } |
---|
| 3724 | |
---|
| 3725 | array_free(nameArray); |
---|
| 3726 | PureSat_CleanMask(manager,ResetVisitedMask); |
---|
| 3727 | PureSat_CleanMask(manager,ResetVisited2Mask); |
---|
| 3728 | PureSat_CleanMask(manager,ResetVisited3Mask); |
---|
| 3729 | |
---|
| 3730 | return tmpTable; |
---|
| 3731 | } |
---|
| 3732 | |
---|
| 3733 | |
---|
| 3734 | /**Function******************************************************************** |
---|
| 3735 | |
---|
| 3736 | Synopsis [There are some latches whose DI is empty, put them |
---|
| 3737 | into abstraction will not add any burden to model checker] |
---|
| 3738 | |
---|
| 3739 | Description [] |
---|
| 3740 | |
---|
| 3741 | SideEffects [] |
---|
| 3742 | |
---|
| 3743 | SeeAlso [] |
---|
| 3744 | |
---|
| 3745 | ******************************************************************************/ |
---|
| 3746 | |
---|
| 3747 | |
---|
| 3748 | void PureSatPreProcLatch(Ntk_Network_t *network, |
---|
| 3749 | PureSat_Manager_t *pm) |
---|
| 3750 | { |
---|
| 3751 | st_generator * stgen; |
---|
| 3752 | bAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
| 3753 | st_table * node2MvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, |
---|
| 3754 | MVFAIG_NETWORK_APPL_KEY); |
---|
| 3755 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 3756 | mAigMvar_t lmVar; |
---|
| 3757 | mAigBvar_t bVar; |
---|
| 3758 | array_t *bVarList,*mVarList; |
---|
| 3759 | int j,lmAigId,id,index1; |
---|
| 3760 | char * name; |
---|
| 3761 | Ntk_Node_t * latch; |
---|
| 3762 | bAigEdge_t v, **li, **bli; |
---|
| 3763 | MvfAig_Function_t *mvfAig; |
---|
| 3764 | |
---|
| 3765 | bVarList = mAigReadBinVarList(manager); |
---|
| 3766 | mVarList = mAigReadMulVarList(manager); |
---|
| 3767 | li = tf->latchInputs; |
---|
| 3768 | bli = tf->blatchInputs; |
---|
| 3769 | |
---|
| 3770 | st_foreach_item(pm->CoiTable,stgen,&latch,NIL(char*)){ |
---|
| 3771 | int checkbin=1; |
---|
| 3772 | st_lookup(node2MvfAigTable,latch,&mvfAig); |
---|
| 3773 | for(j=0;j<mvfAig->num;j++){ |
---|
| 3774 | int retVal; |
---|
| 3775 | v = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(mvfAig,j)); |
---|
| 3776 | if(v==bAig_Zero||v==bAig_One) |
---|
| 3777 | continue; |
---|
| 3778 | retVal = st_lookup(tf->li2index,(char*)v,&id); |
---|
| 3779 | assert(retVal); |
---|
| 3780 | if(li[0][id]==li[1][id]&&li[1][id]==li[2][id]){ |
---|
| 3781 | name = Ntk_NodeReadName(latch); |
---|
| 3782 | st_insert(pm->vertexTable,name,(char*)0); |
---|
| 3783 | if(pm->verbosity>=2) |
---|
| 3784 | fprintf(vis_stdout,"preproc: add %s to abs\n",name); |
---|
| 3785 | checkbin = 0; |
---|
| 3786 | break; |
---|
| 3787 | } |
---|
| 3788 | } |
---|
| 3789 | if(checkbin){ |
---|
| 3790 | lmAigId = Ntk_NodeReadMAigId(latch); |
---|
| 3791 | lmVar = array_fetch(mAigMvar_t, mVarList,lmAigId); |
---|
| 3792 | for(j=0,index1=lmVar.bVars;j<lmVar.encodeLength;j++,index1++){ |
---|
| 3793 | int retVal; |
---|
| 3794 | bVar = array_fetch(mAigBvar_t,bVarList,index1); |
---|
| 3795 | if(bVar.node==bAig_Zero||bVar.node==bAig_One) |
---|
| 3796 | continue; |
---|
| 3797 | retVal = st_lookup(tf->bli2index,(char*)bVar.node,&id); |
---|
| 3798 | assert(retVal); |
---|
| 3799 | if(bli[0][id]==bli[1][id]&&bli[1][id]==bli[2][id]){ |
---|
| 3800 | name = Ntk_NodeReadName(latch); |
---|
| 3801 | st_insert(pm->vertexTable,name,(char*)0); |
---|
| 3802 | if(pm->verbosity>=2) |
---|
| 3803 | fprintf(vis_stdout,"preproc BINARY: add %s to abs\n",name); |
---|
| 3804 | break; |
---|
| 3805 | } |
---|
| 3806 | } |
---|
| 3807 | } |
---|
| 3808 | } |
---|
| 3809 | |
---|
| 3810 | } |
---|
| 3811 | |
---|
| 3812 | |
---|
| 3813 | /**Function******************************************************************** |
---|
| 3814 | |
---|
| 3815 | Synopsis [Generate identical latch clusters] |
---|
| 3816 | |
---|
| 3817 | Description [] |
---|
| 3818 | |
---|
| 3819 | SideEffects [] |
---|
| 3820 | |
---|
| 3821 | SeeAlso [] |
---|
| 3822 | |
---|
| 3823 | ******************************************************************************/ |
---|
| 3824 | |
---|
| 3825 | void PureSatGetIndenticalLatch(Ntk_Network_t *network, |
---|
| 3826 | PureSat_Manager_t *pm) |
---|
| 3827 | { |
---|
| 3828 | bAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
---|
| 3829 | bAigTimeFrame_t * tf = manager->timeframeWOI; |
---|
| 3830 | bAigEdge_t *li=tf->latchInputs[2],*bli = tf->blatchInputs[2]; |
---|
| 3831 | int i; |
---|
| 3832 | bAigEdge_t v; |
---|
| 3833 | st_table *table; |
---|
| 3834 | st_generator *stgen,*stgen1; |
---|
| 3835 | char *name,*name1; |
---|
| 3836 | st_table *table2,*table1=st_init_table(st_ptrcmp,st_ptrhash); |
---|
| 3837 | |
---|
| 3838 | pm->IdenLatchTable = st_init_table(st_ptrcmp,st_ptrhash); |
---|
| 3839 | |
---|
| 3840 | for(i=0;i<tf->nLatches;i++){ |
---|
| 3841 | v=bAig_NonInvertedEdge(li[i]); |
---|
| 3842 | if(!st_lookup(table1,(char*)v,NIL(char*))){ |
---|
| 3843 | if(st_lookup(tf->MultiLatchTable,(char*)v,&table)){ |
---|
| 3844 | int init=0; |
---|
| 3845 | st_foreach_item(table,stgen,&name,NIL(char*)){ |
---|
| 3846 | if(!st_lookup(pm->IdenLatchTable,name,&table2)){ |
---|
| 3847 | st_insert(pm->IdenLatchTable,name,table); |
---|
| 3848 | if(pm->verbosity>=2) |
---|
| 3849 | fprintf(vis_stdout,"%s and ",name); |
---|
| 3850 | init = 1; |
---|
| 3851 | } |
---|
| 3852 | /*insert everything in table 2 into table |
---|
| 3853 | name is already in another group, put everything of current group |
---|
| 3854 | into that group*/ |
---|
| 3855 | else{ |
---|
| 3856 | st_foreach_item(table,stgen1,&name1,NIL(char*)){ |
---|
| 3857 | st_insert(table2,name1,(char*)0); |
---|
| 3858 | st_insert(pm->IdenLatchTable,name1,table2); |
---|
| 3859 | if(pm->verbosity>=2) |
---|
| 3860 | fprintf(vis_stdout,"%s and ",name1); |
---|
| 3861 | } |
---|
| 3862 | if(pm->verbosity>=2) |
---|
| 3863 | fprintf(vis_stdout,"are the same\n"); |
---|
| 3864 | break; |
---|
| 3865 | } |
---|
| 3866 | } |
---|
| 3867 | if(init){ |
---|
| 3868 | if(pm->verbosity>=2) |
---|
| 3869 | fprintf(vis_stdout,"are the same\n"); |
---|
| 3870 | } |
---|
| 3871 | } |
---|
| 3872 | st_insert(table1,(char*)v,(char*)0); |
---|
| 3873 | } |
---|
| 3874 | } |
---|
| 3875 | |
---|
| 3876 | |
---|
| 3877 | for(i=0;i<tf->nbLatches;i++){ |
---|
| 3878 | v=bAig_NonInvertedEdge(bli[i]); |
---|
| 3879 | if(!st_lookup(table1,(char*)v,NIL(char*))){ |
---|
| 3880 | if(st_lookup(tf->MultiLatchTable,(char*)v,&table)){ |
---|
| 3881 | int init=0; |
---|
| 3882 | st_foreach_item(table,stgen,&name,NIL(char*)){ |
---|
| 3883 | |
---|
| 3884 | if(!st_lookup(pm->IdenLatchTable,name,table2)){ |
---|
| 3885 | st_insert(pm->IdenLatchTable,name,table); |
---|
| 3886 | if(pm->verbosity>=2) |
---|
| 3887 | fprintf(vis_stdout,"%s and ",name); |
---|
| 3888 | init = 1; |
---|
| 3889 | } |
---|
| 3890 | /*insert everything in table 2 into table |
---|
| 3891 | name is already in another group, put everything of current group |
---|
| 3892 | into that group*/ |
---|
| 3893 | else{ |
---|
| 3894 | st_foreach_item(table,stgen1,&name1,NIL(char*)){ |
---|
| 3895 | |
---|
| 3896 | st_insert(table2,name1,(char*)0); |
---|
| 3897 | st_insert(pm->IdenLatchTable,name1,table2); |
---|
| 3898 | if(pm->verbosity>=2) |
---|
| 3899 | fprintf(vis_stdout,"%s and ",name1); |
---|
| 3900 | } |
---|
| 3901 | if(pm->verbosity>=2) |
---|
| 3902 | fprintf(vis_stdout,"are the same\n"); |
---|
| 3903 | break; |
---|
| 3904 | } |
---|
| 3905 | } |
---|
| 3906 | if(init){ |
---|
| 3907 | if(pm->verbosity>=2) |
---|
| 3908 | fprintf(vis_stdout,"are the same\n"); |
---|
| 3909 | } |
---|
| 3910 | } |
---|
| 3911 | st_insert(table1,(char*)v,(char*)0); |
---|
| 3912 | } |
---|
| 3913 | } |
---|
| 3914 | |
---|
| 3915 | st_free_table(table1); |
---|
| 3916 | } |
---|