1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [puresatMain.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 | #include "puresatInt.h" |
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49 | |
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50 | /*---------------------------------------------------------------------------*/ |
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51 | /* Constant declarations */ |
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52 | /*---------------------------------------------------------------------------*/ |
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53 | |
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54 | /*---------------------------------------------------------------------------*/ |
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55 | /* Structure declarations */ |
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56 | /*---------------------------------------------------------------------------*/ |
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57 | |
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58 | /*---------------------------------------------------------------------------*/ |
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59 | /* Type declarations */ |
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60 | /*---------------------------------------------------------------------------*/ |
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61 | |
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62 | /*---------------------------------------------------------------------------*/ |
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63 | /* Variable declarations */ |
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64 | /*---------------------------------------------------------------------------*/ |
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65 | |
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66 | /*---------------------------------------------------------------------------*/ |
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67 | /* Macro declarations */ |
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68 | /*---------------------------------------------------------------------------*/ |
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69 | |
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70 | /**AutomaticStart*************************************************************/ |
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71 | |
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72 | /*---------------------------------------------------------------------------*/ |
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73 | /* Static function prototypes */ |
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74 | /*---------------------------------------------------------------------------*/ |
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75 | |
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76 | |
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77 | /**AutomaticEnd***************************************************************/ |
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78 | |
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79 | /*---------------------------------------------------------------------------*/ |
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80 | /* Definition of exported functions */ |
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81 | /*---------------------------------------------------------------------------*/ |
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82 | |
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83 | |
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84 | /*---------------------------------------------------------------------------*/ |
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85 | /* Definition of internal functions */ |
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86 | /*---------------------------------------------------------------------------*/ |
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87 | |
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88 | /**Function******************************************************************** |
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89 | |
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90 | Synopsis [Insert clauses of (Si!=Sj) for k-induction checking] |
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91 | |
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92 | Description [Insert clauses of (Si!=Sj) for k-induction checking] |
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93 | |
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94 | SideEffects [] |
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95 | |
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96 | SeeAlso [] |
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97 | |
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98 | ******************************************************************************/ |
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99 | |
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100 | void PureSatInsertNewClauseForSimplePath(array_t *vertexArray, |
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101 | Ntk_Network_t *network, |
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102 | int step1, |
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103 | int step2, |
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104 | BmcCnfClauses_t *cnfClauses, |
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105 | st_table *nodeToMvfAigTable) |
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106 | { |
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107 | int i,j,k,mvfSize,index1,index2, cnfIndex; |
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108 | Ntk_Node_t * latch; |
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109 | MvfAig_Function_t *latchMvfAig; |
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110 | bAigEdge_t * latchBAig; |
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111 | array_t * tmpclause, *clauseArray, * clause, * clause1,*latchClause; |
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112 | mAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
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113 | char * Name; |
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114 | boolean nextLatch = FALSE; |
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115 | |
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116 | latchClause = array_alloc(int,0); |
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117 | arrayForEachItem(char *,vertexArray,j,Name) |
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118 | { |
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119 | nextLatch = FALSE; |
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120 | clause = array_alloc(int,0); /*(-A + -A1 + -A2 + -A3)*/ |
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121 | clauseArray = array_alloc(array_t *,0);/*(A + -A1)(A + -A2)(A + -A3)*/ |
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122 | latch = Ntk_NetworkFindNodeByName(network,Name); |
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123 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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124 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
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125 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
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126 | array_free(latchMvfAig); |
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127 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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128 | } |
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129 | mvfSize = array_n(latchMvfAig); |
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130 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
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131 | |
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132 | for(i=0; i< mvfSize; i++){ |
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133 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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134 | } |
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135 | for(i=0; i< mvfSize; i++){ |
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136 | if (latchBAig[i] == bAig_One) |
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137 | nextLatch=TRUE;break; /* the clause is always true */ |
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138 | } |
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139 | |
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140 | if(!nextLatch) |
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141 | { |
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142 | for(i=0; i< mvfSize; i++){ |
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143 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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144 | index1 = BmcGenerateCnfFormulaForAigFunction(manager,latchBAig[i],step1,cnfClauses); |
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145 | index2 = BmcGenerateCnfFormulaForAigFunction(manager,latchBAig[i],step2,cnfClauses); |
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146 | |
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147 | cnfIndex = cnfClauses->cnfGlobalIndex++; |
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148 | tmpclause = array_alloc(int, 3); |
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149 | array_insert(int, tmpclause, 0, -index2); |
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150 | array_insert(int, tmpclause, 1, -index1); |
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151 | array_insert(int, tmpclause, 2, cnfIndex); |
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152 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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153 | array_free(tmpclause); |
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154 | |
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155 | tmpclause = array_alloc(int, 2); |
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156 | array_insert(int, tmpclause, 0, index2); |
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157 | array_insert(int, tmpclause, 1, -cnfIndex); |
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158 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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159 | array_free(tmpclause); |
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160 | |
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161 | tmpclause = array_alloc(int, 2); |
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162 | array_insert(int, tmpclause, 0, index1); |
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163 | array_insert(int, tmpclause, 1, -cnfIndex); |
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164 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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165 | array_free(tmpclause); |
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166 | |
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167 | /*(-A + A1 + A2 + A3)*/ |
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168 | array_insert_last(int,clause,cnfIndex); |
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169 | /*(A + -A1)(A + -A2)(A + -A3)*/ |
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170 | clause1 = array_alloc(int,0);/*(A + -A1/2/3)*/ |
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171 | array_insert_last(int,clause1,-cnfIndex); |
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172 | array_insert_last(array_t *,clauseArray,clause1); |
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173 | |
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174 | } |
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175 | |
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176 | cnfIndex = cnfClauses->cnfGlobalIndex++; /*A*/ |
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177 | /*(A + -A1)(A + -A2)(A + -A3)*/ |
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178 | arrayForEachItem(array_t *,clauseArray,k,clause1) |
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179 | { |
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180 | array_insert_last(int,clause1,cnfIndex); |
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181 | BmcCnfInsertClause(cnfClauses,clause1); |
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182 | array_free(clause1); |
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183 | } |
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184 | array_free(clauseArray); |
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185 | |
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186 | /*(-A + A1 + A2 + A3)*/ |
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187 | array_insert_last(int,clause,-cnfIndex); |
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188 | BmcCnfInsertClause(cnfClauses,clause); |
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189 | array_free(clause); |
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190 | |
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191 | /*(C + -A + -B)*/ |
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192 | array_insert_last(int,latchClause,-cnfIndex); |
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193 | } |
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194 | FREE(latchBAig); |
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195 | } |
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196 | cnfIndex = cnfClauses->cnfGlobalIndex++; /* C*/ |
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197 | array_insert_last(int,latchClause,cnfIndex); /*(C + -A + -B)*/ |
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198 | BmcCnfInsertClause(cnfClauses,latchClause); |
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199 | array_free(latchClause); |
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200 | |
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201 | /*(-C)*/ |
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202 | latchClause = array_alloc(int,0); |
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203 | array_insert_last(int,latchClause,-cnfIndex); |
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204 | BmcCnfInsertClause(cnfClauses,latchClause); |
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205 | array_free(latchClause); |
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206 | } |
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207 | |
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208 | |
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209 | /**Function******************************************************************** |
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210 | |
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211 | Synopsis [Insert clauses of (Si!=I) for k-induction checking] |
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212 | |
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213 | Description [Insert clauses of (Si!=I) for k-induction checking] |
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214 | |
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215 | SideEffects [] |
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216 | |
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217 | SeeAlso [] |
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218 | |
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219 | ******************************************************************************/ |
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220 | |
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221 | void PureSatInsertNewClauseForInit(array_t *vertexArray, |
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222 | Ntk_Network_t *network, |
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223 | int step1, |
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224 | int step2, |
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225 | BmcCnfClauses_t *cnfClauses, |
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226 | st_table *nodeToMvfAigTable) |
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227 | { |
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228 | int i,j,k,mvfSize,index1=0,index2=0, cnfIndex; |
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229 | Ntk_Node_t * latch, *latchInit; |
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230 | MvfAig_Function_t *initMvfAig,*latchMvfAig; |
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231 | bAigEdge_t * latchBAig,* initBAig; |
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232 | array_t * tmpclause, *clauseArray, * clause, * clause1,*latchClause; |
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233 | mAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
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234 | char * Name; |
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235 | boolean nextLatch = FALSE; |
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236 | |
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237 | latchClause = array_alloc(int,0); |
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238 | arrayForEachItem(char *,vertexArray,j,Name) |
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239 | { |
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240 | nextLatch = FALSE; |
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241 | clause = array_alloc(int,0); /*(-A + -A1 + -A2 + -A3)*/ |
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242 | clauseArray = array_alloc(array_t *,0);/*(A + -A1)(A + -A2)(A + -A3)*/ |
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243 | latch = Ntk_NetworkFindNodeByName(network,Name); |
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244 | latchInit = Ntk_LatchReadInitialInput(latch); |
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245 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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246 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
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247 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
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248 | array_free(latchMvfAig); |
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249 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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250 | } |
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251 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
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252 | |
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253 | |
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254 | mvfSize = array_n(latchMvfAig); |
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255 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
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256 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
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257 | /* printf("mvfSize = %d \n",mvfSize);*/ |
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258 | |
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259 | for(i=0; i< mvfSize; i++){ |
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260 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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261 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
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262 | } |
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263 | |
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264 | for(i=0; i< mvfSize; i++){ |
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265 | if ((initBAig[i] == bAig_One) && (latchBAig[i] == bAig_One)) |
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266 | { |
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267 | nextLatch=TRUE; |
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268 | break; /* the clause is always true */ |
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269 | } |
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270 | } |
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271 | |
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272 | |
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273 | if(!nextLatch) |
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274 | { |
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275 | for(i=0; i< mvfSize; i++){ |
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276 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
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277 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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278 | if(initBAig[i]==bAig_Zero ||latchBAig[i]==bAig_Zero) |
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279 | { |
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280 | continue; |
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281 | } |
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282 | if(initBAig[i]!=bAig_One) |
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283 | { |
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284 | index1 = BmcGenerateCnfFormulaForAigFunction(manager,initBAig[i],step1,cnfClauses); |
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285 | } |
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286 | if(latchBAig[i]!=bAig_One) |
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287 | { |
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288 | index2 = BmcGenerateCnfFormulaForAigFunction(manager,latchBAig[i],step2,cnfClauses); |
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289 | } |
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290 | |
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291 | cnfIndex = cnfClauses->cnfGlobalIndex++; |
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292 | if (initBAig[i] == bAig_One){ |
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293 | tmpclause = array_alloc(int, 2); |
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294 | array_insert(int, tmpclause, 0, -index2); |
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295 | array_insert(int, tmpclause, 1, cnfIndex); |
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296 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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297 | array_free(tmpclause); |
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298 | |
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299 | tmpclause = array_alloc(int, 2); |
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300 | array_insert(int, tmpclause, 0, index2); |
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301 | array_insert(int, tmpclause, 1, -cnfIndex); |
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302 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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303 | array_free(tmpclause); |
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304 | |
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305 | } else if (latchBAig[i] == bAig_One){ |
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306 | tmpclause = array_alloc(int, 2); |
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307 | array_insert(int, tmpclause, 0, -index1); |
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308 | array_insert(int, tmpclause, 1, cnfIndex); |
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309 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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310 | array_free(tmpclause); |
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311 | |
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312 | tmpclause = array_alloc(int, 2); |
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313 | array_insert(int, tmpclause, 0, index1); |
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314 | array_insert(int, tmpclause, 1, -cnfIndex); |
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315 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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316 | array_free(tmpclause); |
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317 | |
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318 | } else { |
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319 | tmpclause = array_alloc(int, 3); |
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320 | array_insert(int, tmpclause, 0, -index2); |
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321 | array_insert(int, tmpclause, 1, -index1); |
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322 | array_insert(int, tmpclause, 2, cnfIndex); |
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323 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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324 | array_free(tmpclause); |
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325 | |
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326 | tmpclause = array_alloc(int, 2); |
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327 | array_insert(int, tmpclause, 0, index2); |
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328 | array_insert(int, tmpclause, 1, -cnfIndex); |
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329 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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330 | array_free(tmpclause); |
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331 | |
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332 | tmpclause = array_alloc(int, 2); |
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333 | array_insert(int, tmpclause, 0, index1); |
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334 | array_insert(int, tmpclause, 1, -cnfIndex); |
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335 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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336 | array_free(tmpclause); |
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337 | } |
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338 | /*(-A + A1 + A2 + A3)*/ |
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339 | array_insert_last(int,clause,cnfIndex); |
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340 | /*(A + -A1)(A + -A2)(A + -A3)*/ |
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341 | clause1 = array_alloc(int,0);/*(A + -A1/2/3)*/ |
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342 | array_insert_last(int,clause1,-cnfIndex); |
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343 | array_insert_last(array_t *,clauseArray,clause1); |
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344 | |
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345 | }/* for(i=0; i< mvfSize;*/ |
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346 | |
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347 | cnfIndex = cnfClauses->cnfGlobalIndex++; /*A*/ |
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348 | /*(A + -A1)(A + -A2)(A + -A3)*/ |
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349 | arrayForEachItem(array_t *,clauseArray,k,clause1) |
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350 | { |
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351 | array_insert_last(int,clause1,cnfIndex); |
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352 | BmcCnfInsertClause(cnfClauses,clause1); |
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353 | array_free(clause1); |
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354 | } |
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355 | array_free(clauseArray); |
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356 | |
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357 | /*(-A + A1 + A2 + A3)*/ |
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358 | array_insert_last(int,clause,-cnfIndex); |
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359 | BmcCnfInsertClause(cnfClauses,clause); |
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360 | array_free(clause); |
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361 | |
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362 | /*(C + -A + -B)*/ |
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363 | array_insert_last(int,latchClause,-cnfIndex); |
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364 | }/* if(!nextLatch)*/ |
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365 | FREE(latchBAig); |
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366 | FREE(initBAig); |
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367 | }/*arrayForEach..*/ |
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368 | cnfIndex = cnfClauses->cnfGlobalIndex++; /* C*/ |
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369 | array_insert_last(int,latchClause,cnfIndex); /*(C + -A + -B)*/ |
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370 | BmcCnfInsertClause(cnfClauses,latchClause); |
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371 | array_free(latchClause); |
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372 | |
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373 | /*(-C)*/ |
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374 | latchClause = array_alloc(int,0); |
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375 | array_insert_last(int,latchClause,-cnfIndex); |
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376 | BmcCnfInsertClause(cnfClauses,latchClause); |
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377 | array_free(latchClause); |
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378 | } |
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379 | |
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380 | |
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381 | /**Function******************************************************************** |
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382 | |
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383 | Synopsis [Insert clauses of initial states for k-induction checking] |
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384 | |
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385 | Description [Insert clauses of initial states for k-induction checking] |
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386 | |
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387 | SideEffects [] |
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388 | |
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389 | SeeAlso [] |
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390 | |
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391 | ******************************************************************************/ |
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392 | void PureSatSetInitStatesForSimplePath(array_t * vertexArray, |
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393 | Ntk_Network_t *network, |
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394 | BmcCnfClauses_t *cnfClauses, |
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395 | st_table * nodeToMvfAigTable) |
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396 | { |
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397 | mAig_Manager_t *maigManager = Ntk_NetworkReadMAigManager(network); |
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398 | Ntk_Node_t *latch, *latchInit; |
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399 | MvfAig_Function_t *initMvfAig, *latchMvfAig; |
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400 | bAigEdge_t *initBAig, *latchBAig; |
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401 | int i,j, mvfSize; |
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402 | char *nodeName; |
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403 | |
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404 | for(j=0;j<array_n(vertexArray);j++) |
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405 | { |
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406 | nodeName = array_fetch(char *,vertexArray,j); |
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407 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
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408 | latchInit = Ntk_LatchReadInitialInput(latch); |
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409 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
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410 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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411 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
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412 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
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413 | array_free(latchMvfAig); |
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414 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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415 | } |
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416 | |
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417 | mvfSize = array_n(initMvfAig); |
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418 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
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419 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
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420 | |
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421 | for(i=0; i< mvfSize; i++){ |
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422 | latchBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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423 | initBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
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424 | } |
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425 | BmcGenerateClausesFromStateTostate(maigManager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
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426 | FREE(initBAig); |
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427 | FREE(latchBAig); |
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428 | } |
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429 | } |
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430 | |
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431 | |
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432 | /**Function******************************************************************** |
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433 | |
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434 | Synopsis [k-induction checking from SSS'00 FMCAD paper ] |
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435 | |
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436 | Description [k-induction checking from SSS'00 FMCAD paper ] |
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437 | |
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438 | SideEffects [] |
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439 | |
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440 | SeeAlso [] |
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441 | |
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442 | ******************************************************************************/ |
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443 | boolean PureSatExistASimplePath(Ntk_Network_t *network, |
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444 | PureSat_IncreSATManager_t * pism, |
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445 | array_t * vertexArray, |
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446 | bAigEdge_t property, |
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447 | PureSat_Manager_t * pm) |
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448 | { |
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449 | mAig_Manager_t *maigManager = Ntk_NetworkReadMAigManager(network); |
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450 | Ntk_Node_t *latch, *latchData, *latchInit; |
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451 | MvfAig_Function_t *initMvfAig, *dataMvfAig, *latchMvfAig; |
---|
452 | bAigEdge_t *initBAig, *latchBAig, *dataBAig; |
---|
453 | int i,j, k, mvfSize,propertyIndex; |
---|
454 | char *nodeName; |
---|
455 | array_t * Pclause = array_alloc(int,0); |
---|
456 | st_table *nodeToMvfAigTable; |
---|
457 | BmcCnfStates_t *cnfstate1,*cnfstate2; |
---|
458 | array_t *supportLatches; |
---|
459 | int status; |
---|
460 | int beginPosition = pism->beginPosition; |
---|
461 | int Length = pism->Length; |
---|
462 | int oldLength = pism->oldLength; |
---|
463 | BmcCnfClauses_t * cnfClauses = pism->cnfClauses; |
---|
464 | satManager_t * cm = pism->cm; |
---|
465 | |
---|
466 | /* construct loopfree path;*/ |
---|
467 | nodeToMvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, MVFAIG_NETWORK_APPL_KEY); |
---|
468 | if (nodeToMvfAigTable == NIL(st_table)){ |
---|
469 | (void) fprintf(vis_stderr,"** bmc error: please run buid_partiton_maigs first"); |
---|
470 | exit(0); |
---|
471 | } |
---|
472 | |
---|
473 | for(j=beginPosition;j<array_n(vertexArray);j++){ |
---|
474 | nodeName = array_fetch(char *,vertexArray,j); |
---|
475 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
476 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
477 | latchData = Ntk_LatchReadDataInput(latch); |
---|
478 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
479 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
480 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
481 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
482 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
483 | array_free(latchMvfAig); |
---|
484 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
485 | } |
---|
486 | |
---|
487 | mvfSize = array_n(initMvfAig); |
---|
488 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
489 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
490 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
491 | |
---|
492 | for(i=0; i< mvfSize; i++){ |
---|
493 | dataBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
494 | latchBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
495 | initBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
496 | } |
---|
497 | |
---|
498 | /* BmcGenerateClausesFromStateTostate(maigManager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0);*/ |
---|
499 | for (k=0; k < oldLength; k++){ |
---|
500 | BmcGenerateClausesFromStateTostate(maigManager, dataBAig,latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
501 | } |
---|
502 | FREE(initBAig); |
---|
503 | FREE(dataBAig); |
---|
504 | FREE(latchBAig); |
---|
505 | } /*st_foreach_item(vertexTable,*/ |
---|
506 | |
---|
507 | if(oldLength<Length){ |
---|
508 | for(j=0;j<array_n(vertexArray);j++){ |
---|
509 | nodeName = array_fetch(char *,vertexArray,j); |
---|
510 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
511 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
512 | latchData = Ntk_LatchReadDataInput(latch); |
---|
513 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
514 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
515 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
516 | |
---|
517 | mvfSize = array_n(initMvfAig); |
---|
518 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
519 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
520 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
521 | |
---|
522 | for(i=0; i< mvfSize; i++){ |
---|
523 | dataBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
524 | latchBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
525 | initBAig[i] = bAig_GetCanonical(maigManager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
526 | } |
---|
527 | |
---|
528 | for (k=oldLength; k <Length; k++){ |
---|
529 | BmcGenerateClausesFromStateTostate(maigManager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
530 | } |
---|
531 | FREE(initBAig); |
---|
532 | FREE(dataBAig); |
---|
533 | FREE(latchBAig); |
---|
534 | } |
---|
535 | }/*if(oldLength!=0){*/ |
---|
536 | |
---|
537 | if(pm->verbosity>=1) |
---|
538 | fprintf(vis_stdout,"forward simple path testing...\n"); |
---|
539 | cnfstate1 = BmcCnfClausesFreeze(cnfClauses); |
---|
540 | |
---|
541 | /*generate NODE(i)!=NODE(i+1)*/ |
---|
542 | for(i=1;i<Length;i++) |
---|
543 | for(j=i+1;j<=Length;j++) |
---|
544 | PureSatInsertNewClauseForSimplePath(vertexArray,network,i,j,cnfClauses,nodeToMvfAigTable); /*Si!=Sj*/ |
---|
545 | |
---|
546 | cnfstate2 = BmcCnfClausesFreeze(cnfClauses); |
---|
547 | supportLatches = PureSatGetImmediateSupportLatches(network, 0, vertexArray); |
---|
548 | /*I(S0)*/ |
---|
549 | PureSatSetInitStatesForSimplePath(supportLatches/*vertexArray*/,network,cnfClauses,nodeToMvfAigTable); |
---|
550 | /*generate all.!I(S(1...i)), the first constraint*/ |
---|
551 | for(i=1;i<=Length;i++) |
---|
552 | PureSatInsertNewClauseForInit(supportLatches/*vertexArray*/,network,-1,i,cnfClauses,nodeToMvfAigTable); |
---|
553 | array_free(supportLatches); |
---|
554 | |
---|
555 | pism->propertyPos = cnfstate1->nextIndex; |
---|
556 | PureSatReadClauses(pism,pm); |
---|
557 | /*no incremental */ |
---|
558 | if(!pm->incre){ |
---|
559 | if(cm->savedConflictClauses) |
---|
560 | sat_ArrayFree(cm->savedConflictClauses); |
---|
561 | cm->savedConflictClauses = 0; |
---|
562 | } |
---|
563 | sat_Main(cm); |
---|
564 | status = cm->status; |
---|
565 | PureSatCleanSat(cm); |
---|
566 | BmcCnfClausesRestore(cnfClauses, cnfstate1); |
---|
567 | |
---|
568 | if(status == SAT_SAT) |
---|
569 | { |
---|
570 | if(pm->verbosity>=1) |
---|
571 | fprintf(vis_stdout,"backward simple path testing...\n"); |
---|
572 | cnfstate2 = BmcCnfClausesFreeze(cnfClauses); |
---|
573 | /*generate NODE(i)!=NODE(i+1)*/ |
---|
574 | for(i=1;i<Length;i++) |
---|
575 | for(j=i+1;j<=Length;j++) |
---|
576 | PureSatInsertNewClauseForSimplePath(vertexArray,network,i,j,cnfClauses,nodeToMvfAigTable); |
---|
577 | /*!P(S(i))*/ |
---|
578 | propertyIndex = BmcGenerateCnfFormulaForAigFunction(maigManager,property, Length, cnfClauses); |
---|
579 | array_insert_last(int, Pclause,propertyIndex); |
---|
580 | BmcCnfInsertClause(cnfClauses, Pclause); |
---|
581 | array_free(Pclause); |
---|
582 | /*all.P(S(0,...i-1))*/ |
---|
583 | property = bAig_Not(property); |
---|
584 | for(k=0; k <= Length-1; k++){ |
---|
585 | propertyIndex = BmcGenerateCnfFormulaForAigFunction(maigManager,property,k, cnfClauses); |
---|
586 | Pclause = array_alloc(int,0); |
---|
587 | array_insert_last(int, Pclause, propertyIndex); |
---|
588 | BmcCnfInsertClause(cnfClauses, Pclause); |
---|
589 | array_free(Pclause); |
---|
590 | } |
---|
591 | |
---|
592 | pism->propertyPos = cnfstate2->nextIndex; |
---|
593 | PureSatReadClauses(pism,pm); |
---|
594 | /*no incremental */ |
---|
595 | if(!pm->incre){ |
---|
596 | if(cm->savedConflictClauses) |
---|
597 | sat_ArrayFree(cm->savedConflictClauses); |
---|
598 | cm->savedConflictClauses = 0; |
---|
599 | } |
---|
600 | sat_Main(cm); |
---|
601 | status = cm->status; |
---|
602 | PureSatCleanSat(cm); |
---|
603 | if(status == SAT_SAT) |
---|
604 | { |
---|
605 | BmcCnfClausesRestore(cnfClauses, cnfstate1); |
---|
606 | FREE(cnfstate1); |
---|
607 | FREE(cnfstate2); |
---|
608 | return TRUE; |
---|
609 | } |
---|
610 | } |
---|
611 | FREE(cnfstate1); |
---|
612 | FREE(cnfstate2); |
---|
613 | return FALSE; |
---|
614 | } |
---|
615 | |
---|
616 | /**Function******************************************************************** |
---|
617 | |
---|
618 | Synopsis [checking the existence of a path of certain length] |
---|
619 | |
---|
620 | Description [checking the existence of a path of certain length ] |
---|
621 | |
---|
622 | SideEffects [] |
---|
623 | |
---|
624 | SeeAlso [] |
---|
625 | |
---|
626 | ******************************************************************************/ |
---|
627 | |
---|
628 | boolean PureSatExistCE(Ntk_Network_t * network, |
---|
629 | PureSat_IncreSATManager_t * pism, |
---|
630 | BmcOption_t *options, |
---|
631 | array_t *vertexArray, |
---|
632 | bAigEdge_t property, |
---|
633 | PureSat_Manager_t * pm, |
---|
634 | int extractCexInfo) |
---|
635 | { |
---|
636 | mAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
---|
637 | Ntk_Node_t *latch, *latchData, *latchInit; |
---|
638 | MvfAig_Function_t *initMvfAig, *dataMvfAig, *latchMvfAig; |
---|
639 | bAigEdge_t *initBAig, *latchBAig, *dataBAig; |
---|
640 | int i,j, k, mvfSize; |
---|
641 | char *nodeName; |
---|
642 | array_t *result; |
---|
643 | array_t *Pclause = array_alloc(int, 0); |
---|
644 | FILE *cnfFile; |
---|
645 | st_table *nodeToMvfAigTable; |
---|
646 | BmcCnfStates_t *cnfstate; |
---|
647 | int beginPosition = pism->beginPosition; |
---|
648 | int oldLength = pism->oldLength; |
---|
649 | int Length = pism->Length; |
---|
650 | BmcCnfClauses_t *cnfClauses = pism->cnfClauses; |
---|
651 | |
---|
652 | double t2, t1 = util_cpu_ctime(); |
---|
653 | |
---|
654 | options->verbosityLevel = (Bmc_VerbosityLevel) pm->verbosity; |
---|
655 | nodeToMvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, MVFAIG_NETWORK_APPL_KEY); |
---|
656 | if (nodeToMvfAigTable == NIL(st_table)){ |
---|
657 | (void) fprintf(vis_stderr,"** bmc error: please run buid_partiton_maigs first"); |
---|
658 | exit(0); |
---|
659 | } |
---|
660 | |
---|
661 | |
---|
662 | #if 1 |
---|
663 | { |
---|
664 | array_t *supportLatches = PureSatGetImmediateSupportLatches(network, beginPosition, vertexArray); |
---|
665 | arrayForEachItem(char *, supportLatches, j, nodeName) { |
---|
666 | latch = Ntk_NetworkFindNodeByName(network, nodeName); |
---|
667 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
668 | latchData = Ntk_LatchReadDataInput(latch); |
---|
669 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
670 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
671 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
672 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
673 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
674 | array_free(latchMvfAig); |
---|
675 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
676 | } |
---|
677 | |
---|
678 | mvfSize = array_n(initMvfAig); |
---|
679 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
680 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
681 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
682 | |
---|
683 | for(i=0; i< mvfSize; i++){ |
---|
684 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
685 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
686 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
687 | } |
---|
688 | |
---|
689 | BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
---|
690 | FREE(initBAig); |
---|
691 | FREE(dataBAig); |
---|
692 | FREE(latchBAig); |
---|
693 | } |
---|
694 | array_free(supportLatches); |
---|
695 | } |
---|
696 | |
---|
697 | |
---|
698 | for(j=beginPosition;j<array_n(vertexArray);j++){ |
---|
699 | nodeName = array_fetch(char *,vertexArray,j); |
---|
700 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
701 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
702 | latchData = Ntk_LatchReadDataInput(latch); |
---|
703 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
704 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
705 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
706 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
707 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
708 | array_free(latchMvfAig); |
---|
709 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
710 | } |
---|
711 | |
---|
712 | mvfSize = array_n(initMvfAig); |
---|
713 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
714 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
715 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
716 | |
---|
717 | for(i=0; i< mvfSize; i++){ |
---|
718 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
719 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
720 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
721 | } |
---|
722 | /* BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0);*/ |
---|
723 | for (k=0; k <oldLength; k++){ |
---|
724 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
725 | } |
---|
726 | FREE(initBAig); |
---|
727 | FREE(dataBAig); |
---|
728 | FREE(latchBAig); |
---|
729 | } /*st_foreach_item(vertexTable,*/ |
---|
730 | #else |
---|
731 | /*build TR for more latches*/ |
---|
732 | |
---|
733 | for(j=beginPosition;j<array_n(vertexArray);j++){ |
---|
734 | nodeName = array_fetch(char *,vertexArray,j); |
---|
735 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
736 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
737 | latchData = Ntk_LatchReadDataInput(latch); |
---|
738 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
739 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
740 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
741 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
742 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
743 | array_free(latchMvfAig); |
---|
744 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
745 | } |
---|
746 | |
---|
747 | mvfSize = array_n(initMvfAig); |
---|
748 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
749 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
750 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
751 | |
---|
752 | for(i=0; i< mvfSize; i++){ |
---|
753 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
754 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
755 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
756 | } |
---|
757 | BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
---|
758 | for (k=0; k <oldLength; k++){ |
---|
759 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
760 | } |
---|
761 | FREE(initBAig); |
---|
762 | FREE(dataBAig); |
---|
763 | FREE(latchBAig); |
---|
764 | } /*st_foreach_item(vertexTable,*/ |
---|
765 | #endif |
---|
766 | |
---|
767 | /* for more length*/ |
---|
768 | if(oldLength<Length){ |
---|
769 | for(j=0;j<array_n(vertexArray);j++){ |
---|
770 | nodeName = array_fetch(char *,vertexArray,j); |
---|
771 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
772 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
773 | latchData = Ntk_LatchReadDataInput(latch); |
---|
774 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
775 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
776 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
777 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
778 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
779 | array_free(latchMvfAig); |
---|
780 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
781 | } |
---|
782 | |
---|
783 | mvfSize = array_n(initMvfAig); |
---|
784 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
785 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
786 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
787 | |
---|
788 | for(i=0; i< mvfSize; i++){ |
---|
789 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
790 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
791 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
792 | } |
---|
793 | |
---|
794 | for (k=oldLength; k<Length; k++){ |
---|
795 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
796 | } |
---|
797 | FREE(initBAig); |
---|
798 | FREE(dataBAig); |
---|
799 | FREE(latchBAig); |
---|
800 | } |
---|
801 | } |
---|
802 | |
---|
803 | |
---|
804 | k=Length; |
---|
805 | cnfstate = BmcCnfClausesFreeze(cnfClauses); |
---|
806 | /* for(k=0; k <= Length; k++){*/ |
---|
807 | array_insert_last(int, Pclause, BmcGenerateCnfFormulaForAigFunction(manager, property,k, cnfClauses)); |
---|
808 | /* } */ |
---|
809 | BmcCnfInsertClause(cnfClauses, Pclause); |
---|
810 | array_free(Pclause); |
---|
811 | cnfFile = Cmd_FileOpen(options->satInFile, "w", NIL(char *), 0); |
---|
812 | BmcWriteClauses(manager, cnfFile, cnfClauses, options); |
---|
813 | (void) fclose(cnfFile); |
---|
814 | result = BmcCheckSAT(options); |
---|
815 | BmcCnfClausesRestore(cnfClauses, cnfstate); |
---|
816 | FREE(cnfstate); |
---|
817 | |
---|
818 | t2 = util_cpu_ctime(); |
---|
819 | /*timeElapse_Sol += t2-t1;*/ |
---|
820 | if(pm->verbosity>=2) |
---|
821 | fprintf(vis_stdout, "timeElapse_sol_noIncre: += %g\n", (double)((t2-t1)/1000.0)); |
---|
822 | |
---|
823 | |
---|
824 | if(extractCexInfo && pm->dbgLevel>=1 && result!=NIL(array_t)){ |
---|
825 | pm->result = array_dup(result); |
---|
826 | } |
---|
827 | |
---|
828 | if(result!=NIL(array_t)) |
---|
829 | { |
---|
830 | if(pm->verbosity>=2) |
---|
831 | fprintf(vis_stdout, "find CEX\n"); |
---|
832 | array_free(result); |
---|
833 | return TRUE; |
---|
834 | } |
---|
835 | else |
---|
836 | { |
---|
837 | if(pm->verbosity>=2) |
---|
838 | fprintf(vis_stdout, "didn't find CEX\n"); |
---|
839 | return FALSE; |
---|
840 | } |
---|
841 | } |
---|
842 | |
---|
843 | /**Function******************************************************************** |
---|
844 | |
---|
845 | Synopsis [Incrementally checking the existence of a path of certain length] |
---|
846 | |
---|
847 | Description [Incrementally checking the existence of a path of certain length ] |
---|
848 | |
---|
849 | SideEffects [] |
---|
850 | |
---|
851 | SeeAlso [] |
---|
852 | |
---|
853 | ******************************************************************************/ |
---|
854 | |
---|
855 | boolean PureSatIncreExistCE(Ntk_Network_t * network, |
---|
856 | PureSat_IncreSATManager_t *pism, |
---|
857 | array_t *vertexArray, |
---|
858 | bAigEdge_t property, |
---|
859 | PureSat_Manager_t * pm) |
---|
860 | { |
---|
861 | mAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
---|
862 | Ntk_Node_t *latch, *latchData, *latchInit; |
---|
863 | MvfAig_Function_t *initMvfAig, *dataMvfAig, *latchMvfAig; |
---|
864 | bAigEdge_t *initBAig, *latchBAig, *dataBAig; |
---|
865 | int i,j, k, mvfSize; |
---|
866 | int status; |
---|
867 | char *nodeName; |
---|
868 | array_t *Pclause = array_alloc(int, 0); |
---|
869 | st_table *nodeToMvfAigTable; |
---|
870 | BmcCnfStates_t *cnfstate; |
---|
871 | int beginPosition = pism->beginPosition; |
---|
872 | int Length = pism->Length; |
---|
873 | int oldLength = pism->oldLength; |
---|
874 | BmcCnfClauses_t * cnfClauses = pism->cnfClauses; |
---|
875 | satManager_t * cm = pism->cm; |
---|
876 | |
---|
877 | nodeToMvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, MVFAIG_NETWORK_APPL_KEY); |
---|
878 | if (nodeToMvfAigTable == NIL(st_table)){ |
---|
879 | (void) fprintf(vis_stderr,"** bmc error: please run buid_partiton_maigs first"); |
---|
880 | exit(0); |
---|
881 | } |
---|
882 | |
---|
883 | { |
---|
884 | array_t *supportLatches = PureSatGetImmediateSupportLatches(network, beginPosition, vertexArray); |
---|
885 | arrayForEachItem(char *, supportLatches, j, nodeName) { |
---|
886 | latch = Ntk_NetworkFindNodeByName(network, nodeName); |
---|
887 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
888 | latchData = Ntk_LatchReadDataInput(latch); |
---|
889 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
890 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
891 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
892 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
893 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
894 | array_free(latchMvfAig); |
---|
895 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
896 | } |
---|
897 | |
---|
898 | mvfSize = array_n(initMvfAig); |
---|
899 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
900 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
901 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
902 | |
---|
903 | for(i=0; i< mvfSize; i++){ |
---|
904 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
905 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
906 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
907 | } |
---|
908 | |
---|
909 | BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
---|
910 | FREE(initBAig); |
---|
911 | FREE(dataBAig); |
---|
912 | FREE(latchBAig); |
---|
913 | } |
---|
914 | array_free(supportLatches); |
---|
915 | } |
---|
916 | |
---|
917 | for(j=beginPosition;j<array_n(vertexArray);j++){ |
---|
918 | nodeName = array_fetch(char *,vertexArray,j); |
---|
919 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
920 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
921 | latchData = Ntk_LatchReadDataInput(latch); |
---|
922 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
923 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
924 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
925 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
926 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
927 | array_free(latchMvfAig); |
---|
928 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
929 | } |
---|
930 | |
---|
931 | mvfSize = array_n(initMvfAig); |
---|
932 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
933 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
934 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
935 | |
---|
936 | for(i=0; i< mvfSize; i++){ |
---|
937 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
938 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
939 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
940 | } |
---|
941 | BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
---|
942 | for (k=0; k <oldLength; k++){ |
---|
943 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
944 | } |
---|
945 | FREE(initBAig); |
---|
946 | FREE(dataBAig); |
---|
947 | FREE(latchBAig); |
---|
948 | } |
---|
949 | |
---|
950 | /* for more length*/ |
---|
951 | if(oldLength<Length){ |
---|
952 | for(j=0;j<array_n(vertexArray);j++){ |
---|
953 | nodeName = array_fetch(char *,vertexArray,j); |
---|
954 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
955 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
956 | latchData = Ntk_LatchReadDataInput(latch); |
---|
957 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
958 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
959 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
960 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
961 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
962 | array_free(latchMvfAig); |
---|
963 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
964 | } |
---|
965 | |
---|
966 | mvfSize = array_n(initMvfAig); |
---|
967 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
968 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
969 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
970 | |
---|
971 | for(i=0; i< mvfSize; i++){ |
---|
972 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
973 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
974 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
975 | } |
---|
976 | |
---|
977 | for (k=oldLength; k<Length; k++){ |
---|
978 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
979 | } |
---|
980 | FREE(initBAig); |
---|
981 | FREE(dataBAig); |
---|
982 | FREE(latchBAig); |
---|
983 | } |
---|
984 | } |
---|
985 | |
---|
986 | k=Length; |
---|
987 | cnfstate = BmcCnfClausesFreeze(cnfClauses); |
---|
988 | /* for(k=0; k <= Length; k++){*/ |
---|
989 | array_insert_last(int, Pclause, BmcGenerateCnfFormulaForAigFunction(manager, property,k, cnfClauses)); |
---|
990 | /* }*/ |
---|
991 | BmcCnfInsertClause(cnfClauses, Pclause); |
---|
992 | array_free(Pclause); |
---|
993 | pism->propertyPos = cnfstate->nextIndex; |
---|
994 | PureSatReadClauses(pism, pm); |
---|
995 | |
---|
996 | /*no incremental */ |
---|
997 | if(!pm->incre){ |
---|
998 | if(cm->savedConflictClauses) |
---|
999 | sat_ArrayFree(cm->savedConflictClauses); |
---|
1000 | cm->savedConflictClauses = 0; |
---|
1001 | } |
---|
1002 | cm->status = 0; |
---|
1003 | sat_Main(cm); |
---|
1004 | status = cm->status; |
---|
1005 | PureSatCleanSat(cm); |
---|
1006 | BmcCnfClausesRestore(cnfClauses, cnfstate); |
---|
1007 | FREE(cnfstate); |
---|
1008 | if(status == SAT_SAT) |
---|
1009 | { |
---|
1010 | if(pm->verbosity>=1) |
---|
1011 | fprintf(vis_stdout, "find CEX\n"); |
---|
1012 | return TRUE; |
---|
1013 | } |
---|
1014 | else |
---|
1015 | { |
---|
1016 | if(pm->verbosity>=1) |
---|
1017 | fprintf(vis_stdout, "didn't find CEX\n"); |
---|
1018 | return FALSE; |
---|
1019 | } |
---|
1020 | } |
---|
1021 | |
---|
1022 | /**Function******************************************************************** |
---|
1023 | |
---|
1024 | Synopsis [Incrementally checking the existence of a path of certain length |
---|
1025 | used by incremental concretization. For more information of incremental |
---|
1026 | concretization, please check the BMC'03 and STTT'05 |
---|
1027 | paper of Li et al., "A satisfiability-based appraoch to abstraction |
---|
1028 | refinement in model checking", and " Abstraction in symbolic model checking |
---|
1029 | using satisfiability as the only decision procedure"] |
---|
1030 | |
---|
1031 | Description [Incrementally checking the existence of a path of certain length |
---|
1032 | used by incremental concretization. For more information of incremental |
---|
1033 | concretization, please check the BMC'03 and STTT'05 |
---|
1034 | paper of Li et al., "A satisfiability-based appraoch to abstraction |
---|
1035 | refinement in model checking", and " Abstraction in symbolic model checking |
---|
1036 | using satisfiability as the only decision procedure"] |
---|
1037 | |
---|
1038 | SideEffects [] |
---|
1039 | |
---|
1040 | SeeAlso [] |
---|
1041 | |
---|
1042 | ******************************************************************************/ |
---|
1043 | |
---|
1044 | boolean PureSatIncreExistCEForRefineOnAbs(Ntk_Network_t *network, |
---|
1045 | PureSat_IncreSATManager_t *pism, |
---|
1046 | array_t *vertexArray, |
---|
1047 | bAigEdge_t property, |
---|
1048 | boolean firstTime, |
---|
1049 | PureSat_Manager_t * pm) |
---|
1050 | |
---|
1051 | { |
---|
1052 | mAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
---|
1053 | Ntk_Node_t *latch, *latchData, *latchInit; |
---|
1054 | MvfAig_Function_t *initMvfAig, *dataMvfAig, *latchMvfAig; |
---|
1055 | bAigEdge_t *initBAig, *latchBAig, *dataBAig; |
---|
1056 | int i,j, k, mvfSize, status; |
---|
1057 | char *nodeName; |
---|
1058 | array_t *Pclause = array_alloc(int, 0); |
---|
1059 | st_table *nodeToMvfAigTable; |
---|
1060 | int beginPosition = pism->beginPosition; |
---|
1061 | int Length = pism->Length; |
---|
1062 | int oldLength = pism->oldLength; |
---|
1063 | BmcCnfClauses_t * cnfClauses = pism->cnfClauses; |
---|
1064 | satManager_t * cm = pism->cm; |
---|
1065 | |
---|
1066 | nodeToMvfAigTable =(st_table *) Ntk_NetworkReadApplInfo(network, MVFAIG_NETWORK_APPL_KEY); |
---|
1067 | if (nodeToMvfAigTable == NIL(st_table)){ |
---|
1068 | (void) fprintf(vis_stderr,"** bmc error: please run buid_partiton_maigs first"); |
---|
1069 | exit(0); |
---|
1070 | } |
---|
1071 | |
---|
1072 | { |
---|
1073 | array_t *supportLatches = PureSatGetImmediateSupportLatches(network, beginPosition, vertexArray); |
---|
1074 | arrayForEachItem(char *, supportLatches, j, nodeName) { |
---|
1075 | latch = Ntk_NetworkFindNodeByName(network, nodeName); |
---|
1076 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
1077 | latchData = Ntk_LatchReadDataInput(latch); |
---|
1078 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
1079 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
1080 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
1081 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
1082 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
1083 | array_free(latchMvfAig); |
---|
1084 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
1085 | } |
---|
1086 | |
---|
1087 | mvfSize = array_n(initMvfAig); |
---|
1088 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1089 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1090 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1091 | |
---|
1092 | for(i=0; i< mvfSize; i++){ |
---|
1093 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
1094 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
1095 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
1096 | } |
---|
1097 | |
---|
1098 | BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
---|
1099 | FREE(initBAig); |
---|
1100 | FREE(dataBAig); |
---|
1101 | FREE(latchBAig); |
---|
1102 | } |
---|
1103 | array_free(supportLatches); |
---|
1104 | } |
---|
1105 | |
---|
1106 | |
---|
1107 | for(j=beginPosition;j<array_n(vertexArray);j++){ |
---|
1108 | nodeName = array_fetch(char *,vertexArray,j); |
---|
1109 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
1110 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
1111 | latchData = Ntk_LatchReadDataInput(latch); |
---|
1112 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
1113 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
1114 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
1115 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
1116 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
1117 | array_free(latchMvfAig); |
---|
1118 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
1119 | } |
---|
1120 | |
---|
1121 | mvfSize = array_n(initMvfAig); |
---|
1122 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1123 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1124 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1125 | |
---|
1126 | for(i=0; i< mvfSize; i++){ |
---|
1127 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
1128 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
1129 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
1130 | } |
---|
1131 | |
---|
1132 | /*BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0);*/ |
---|
1133 | for (k=0; k <oldLength; k++){ |
---|
1134 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
1135 | } |
---|
1136 | FREE(initBAig); |
---|
1137 | FREE(dataBAig); |
---|
1138 | FREE(latchBAig); |
---|
1139 | } |
---|
1140 | |
---|
1141 | /*for more length */ |
---|
1142 | if(oldLength<Length){ |
---|
1143 | for(j=0;j<array_n(vertexArray);j++){ |
---|
1144 | nodeName = array_fetch(char *,vertexArray,j); |
---|
1145 | latch = Ntk_NetworkFindNodeByName(network,nodeName); |
---|
1146 | latchInit = Ntk_LatchReadInitialInput(latch); |
---|
1147 | latchData = Ntk_LatchReadDataInput(latch); |
---|
1148 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
---|
1149 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
---|
1150 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
1151 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
---|
1152 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
---|
1153 | array_free(latchMvfAig); |
---|
1154 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
---|
1155 | } |
---|
1156 | |
---|
1157 | mvfSize = array_n(initMvfAig); |
---|
1158 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1159 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1160 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
---|
1161 | |
---|
1162 | for(i=0; i< mvfSize; i++){ |
---|
1163 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
---|
1164 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
---|
1165 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
1166 | } |
---|
1167 | |
---|
1168 | for (k=oldLength; k<Length; k++){ |
---|
1169 | BmcGenerateClausesFromStateTostate(manager, dataBAig, latchBAig, mvfSize, k, k+1, cnfClauses, 0); |
---|
1170 | } |
---|
1171 | FREE(initBAig); |
---|
1172 | FREE(dataBAig); |
---|
1173 | FREE(latchBAig); |
---|
1174 | } |
---|
1175 | } |
---|
1176 | |
---|
1177 | |
---|
1178 | /*cnfstate = BmcCnfClausesFreeze(cnfClauses);*/ |
---|
1179 | if(firstTime){ |
---|
1180 | /* pism->propertyPos = cnfstate->nextIndex;*/ |
---|
1181 | array_insert_last(int, Pclause, BmcGenerateCnfFormulaForAigFunction(manager, |
---|
1182 | property,Length, cnfClauses)); |
---|
1183 | BmcCnfInsertClause(cnfClauses, Pclause); |
---|
1184 | array_free(Pclause); |
---|
1185 | } |
---|
1186 | PureSatReadClauses(pism,pm); |
---|
1187 | sat_Main(cm); |
---|
1188 | if(pm->dbgLevel>=1 && cm->status==SAT_SAT){ |
---|
1189 | pm->result = array_alloc(int, 0); |
---|
1190 | { |
---|
1191 | int size, value; |
---|
1192 | size = cm->initNumVariables * satNodeSize; |
---|
1193 | for(i=satNodeSize; i<=size; i+=satNodeSize) { |
---|
1194 | value = SATvalue(i); |
---|
1195 | if(value == 1) { |
---|
1196 | array_insert_last(int, pm->result, SATnodeID(i)); |
---|
1197 | } |
---|
1198 | else if(value == 0) { |
---|
1199 | array_insert_last(int, pm->result, -(SATnodeID(i))); |
---|
1200 | } |
---|
1201 | } |
---|
1202 | } |
---|
1203 | } |
---|
1204 | status = cm->status; |
---|
1205 | PureSatCleanSat(cm); |
---|
1206 | /*FREE(cnfstate);*/ |
---|
1207 | if(status == SAT_SAT) |
---|
1208 | { |
---|
1209 | if(pm->verbosity>=1) |
---|
1210 | fprintf(vis_stdout, "find CEX\n"); |
---|
1211 | return TRUE; |
---|
1212 | } |
---|
1213 | else |
---|
1214 | { |
---|
1215 | if(pm->verbosity>=1) |
---|
1216 | fprintf(vis_stdout, "didn't find CEX\n"); |
---|
1217 | return FALSE; |
---|
1218 | } |
---|
1219 | } |
---|
1220 | |
---|
1221 | |
---|
1222 | /**Function******************************************************************** |
---|
1223 | |
---|
1224 | Synopsis [Building the path together with ClsidxToLatchTable for later use |
---|
1225 | by refinement extraction] |
---|
1226 | |
---|
1227 | Description [Building the path together with ClsidxToLatchTable for later use |
---|
1228 | by refinement extraction] |
---|
1229 | |
---|
1230 | SideEffects [] |
---|
1231 | |
---|
1232 | SeeAlso [] |
---|
1233 | |
---|
1234 | ******************************************************************************/ |
---|
1235 | |
---|
1236 | void |
---|
1237 | PureSatGenerateClausesFromStateTostateWithTable( |
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1238 | bAig_Manager_t *manager, |
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1239 | bAigEdge_t *fromAigArray, |
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1240 | bAigEdge_t *toAigArray, |
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1241 | int mvfSize, |
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1242 | int fromState, |
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1243 | int toState, |
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1244 | BmcCnfClauses_t *cnfClauses, |
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1245 | int outIndex, |
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1246 | st_table *ClsidxToLatchTable, |
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1247 | char *nodeName) |
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1248 | { |
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1249 | array_t *clause, *tmpclause; |
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1250 | int toIndex, fromIndex, cnfIndex; |
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1251 | int i; |
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1252 | |
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1253 | toIndex =0; |
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1254 | fromIndex = 0; |
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1255 | |
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1256 | for(i=0; i< mvfSize; i++){ |
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1257 | if ((fromAigArray[i] == bAig_One) && (toAigArray[i] == bAig_One)){ |
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1258 | return; /* the clause is always true */ |
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1259 | } |
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1260 | } |
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1261 | clause = array_alloc(int, 0); |
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1262 | for(i=0; i< mvfSize; i++){ |
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1263 | if ((fromAigArray[i] != bAig_Zero) && (toAigArray[i] != bAig_Zero)){ |
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1264 | if (toAigArray[i] != bAig_One){ |
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1265 | toIndex = BmcGenerateCnfFormulaForAigFunction(manager,toAigArray[i], |
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1266 | toState,cnfClauses); |
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1267 | } |
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1268 | if (fromAigArray[i] != bAig_One){ |
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1269 | fromIndex = BmcGenerateCnfFormulaForAigFunction(manager,fromAigArray[i], |
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1270 | fromState,cnfClauses); |
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1271 | } |
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1272 | cnfIndex = cnfClauses->cnfGlobalIndex++; /* index of the output of the OR of T(from, to) */ |
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1273 | if (toAigArray[i] == bAig_One){ |
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1274 | tmpclause = array_alloc(int, 2); |
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1275 | array_insert(int, tmpclause, 0, -fromIndex); |
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1276 | array_insert(int, tmpclause, 1, cnfIndex); |
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1277 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1278 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1279 | array_free(tmpclause); |
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1280 | |
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1281 | tmpclause = array_alloc(int, 2); |
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1282 | array_insert(int, tmpclause, 0, fromIndex); |
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1283 | array_insert(int, tmpclause, 1, -cnfIndex); |
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1284 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1285 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1286 | array_free(tmpclause); |
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1287 | |
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1288 | } else if (fromAigArray[i] == bAig_One){ |
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1289 | tmpclause = array_alloc(int, 2); |
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1290 | array_insert(int, tmpclause, 0, -toIndex); |
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1291 | array_insert(int, tmpclause, 1, cnfIndex); |
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1292 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1293 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1294 | array_free(tmpclause); |
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1295 | |
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1296 | tmpclause = array_alloc(int, 2); |
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1297 | array_insert(int, tmpclause, 0, toIndex); |
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1298 | array_insert(int, tmpclause, 1, -cnfIndex); |
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1299 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1300 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1301 | array_free(tmpclause); |
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1302 | |
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1303 | } else { |
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1304 | tmpclause = array_alloc(int, 3); |
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1305 | array_insert(int, tmpclause, 0, -toIndex); |
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1306 | array_insert(int, tmpclause, 1, -fromIndex); |
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1307 | array_insert(int, tmpclause, 2, cnfIndex); |
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1308 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1309 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1310 | array_free(tmpclause); |
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1311 | |
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1312 | tmpclause = array_alloc(int, 2); |
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1313 | array_insert(int, tmpclause, 0, toIndex); |
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1314 | array_insert(int, tmpclause, 1, -cnfIndex); |
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1315 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1316 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1317 | array_free(tmpclause); |
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1318 | |
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1319 | tmpclause = array_alloc(int, 2); |
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1320 | array_insert(int, tmpclause, 0, fromIndex); |
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1321 | array_insert(int, tmpclause, 1, -cnfIndex); |
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1322 | BmcCnfInsertClause(cnfClauses, tmpclause); |
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1323 | st_insert(ClsidxToLatchTable,(char *)(long)(cnfClauses->noOfClauses-1),nodeName); |
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1324 | array_free(tmpclause); |
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1325 | } |
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1326 | array_insert_last(int, clause, cnfIndex); |
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1327 | } /* if */ |
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1328 | |
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1329 | } /* for i loop */ |
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1330 | if (outIndex != 0 ){ |
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1331 | array_insert_last(int, clause, -outIndex); |
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1332 | } |
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1333 | BmcCnfInsertClause(cnfClauses, clause); |
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1334 | array_free(clause); |
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1335 | |
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1336 | return; |
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1337 | } |
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1338 | |
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1339 | |
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1340 | /**Function******************************************************************** |
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1341 | |
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1342 | Synopsis [Building the path with enhanced initail states] |
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1343 | |
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1344 | Description [Building the path with enhanced initail states] |
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1345 | |
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1346 | SideEffects [] |
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1347 | |
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1348 | SeeAlso [] |
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1349 | |
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1350 | ******************************************************************************/ |
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1351 | |
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1352 | void |
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1353 | PureSatGenerateClausesForPath_EnhanceInit( |
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1354 | Ntk_Network_t *network, |
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1355 | int from, |
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1356 | int to, |
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1357 | PureSat_IncreSATManager_t * pism, |
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1358 | PureSat_Manager_t * pm, |
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1359 | st_table *nodeToMvfAigTable, |
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1360 | st_table *CoiTable) |
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1361 | { |
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1362 | mAig_Manager_t *manager = Ntk_NetworkReadMAigManager(network); |
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1363 | lsGen gen; |
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1364 | |
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1365 | Ntk_Node_t *latch, *latchData, *latchInit; |
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1366 | MvfAig_Function_t *initMvfAig, *dataMvfAig, *latchMvfAig; |
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1367 | bAigEdge_t *initBAig, *latchBAig, *dataBAig; |
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1368 | int i,j, k, mvfSize; |
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1369 | array_t * vertexArray = array_alloc(char *,0); |
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1370 | char * nodeName; |
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1371 | BmcCnfClauses_t * cnfClauses = pism->cnfClauses; |
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1372 | st_table * ClsidxToLatchTable = pm->ClsidxToLatchTable; |
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1373 | |
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1374 | if(from == 0){ |
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1375 | if(pm->verbosity>=2) |
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1376 | fprintf(vis_stdout, "node in vertexArray: "); |
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1377 | Ntk_NetworkForEachLatch(network, gen, latch) { |
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1378 | int tmp; |
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1379 | if (!st_lookup_int(CoiTable, latch, &tmp)){ |
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1380 | continue; |
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1381 | } |
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1382 | nodeName = Ntk_NodeReadName(latch); |
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1383 | array_insert_last(char *,vertexArray,nodeName); |
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1384 | if(pm->verbosity>=2) |
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1385 | fprintf(vis_stdout, "%s ",nodeName); |
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1386 | } |
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1387 | if(pm->verbosity>=2) |
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1388 | fprintf(vis_stdout, "\n"); |
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1389 | } |
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1390 | |
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1391 | if(from == 0){ |
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1392 | array_t *supportLatches = PureSatGetImmediateSupportLatches(network, 0, vertexArray); |
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1393 | arrayForEachItem(char *, supportLatches, j, nodeName) { |
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1394 | latch = Ntk_NetworkFindNodeByName(network, nodeName); |
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1395 | latchInit = Ntk_LatchReadInitialInput(latch); |
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1396 | latchData = Ntk_LatchReadDataInput(latch); |
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1397 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
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1398 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
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1399 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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1400 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
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1401 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
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1402 | array_free(latchMvfAig); |
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1403 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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1404 | } |
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1405 | |
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1406 | mvfSize = array_n(initMvfAig); |
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1407 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
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1408 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
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1409 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
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1410 | |
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1411 | for(i=0; i< mvfSize; i++){ |
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1412 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
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1413 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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1414 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
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1415 | } |
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1416 | |
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1417 | BmcGenerateClausesFromStateTostate(manager, initBAig, latchBAig, mvfSize, -1, 0, cnfClauses, 0); |
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1418 | FREE(initBAig); |
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1419 | FREE(dataBAig); |
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1420 | FREE(latchBAig); |
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1421 | } |
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1422 | array_free(supportLatches); |
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1423 | array_free(vertexArray); |
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1424 | } |
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1425 | |
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1426 | Ntk_NetworkForEachLatch(network, gen, latch) { |
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1427 | int tmp; |
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1428 | if (!st_lookup_int(CoiTable, latch, &tmp)){ |
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1429 | continue; |
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1430 | } |
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1431 | nodeName = Ntk_NodeReadName(latch); |
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1432 | latchInit = Ntk_LatchReadInitialInput(latch); |
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1433 | latchData = Ntk_LatchReadDataInput(latch); |
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1434 | |
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1435 | /* Get the multi-valued function for each node*/ |
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1436 | initMvfAig = Bmc_ReadMvfAig(latchInit, nodeToMvfAigTable); |
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1437 | if (initMvfAig == NIL(MvfAig_Function_t)){ |
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1438 | (void) fprintf(vis_stdout, "No multi-valued function for this node %s \n", Ntk_NodeReadName(latchInit)); |
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1439 | return; |
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1440 | } |
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1441 | dataMvfAig = Bmc_ReadMvfAig(latchData, nodeToMvfAigTable); |
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1442 | if (dataMvfAig == NIL(MvfAig_Function_t)){ |
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1443 | (void) fprintf(vis_stdout, "No multi-valued function for this node %s \n", Ntk_NodeReadName(latchData)); |
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1444 | return; |
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1445 | } |
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1446 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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1447 | if (latchMvfAig == NIL(MvfAig_Function_t)){ |
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1448 | latchMvfAig = Bmc_NodeBuildMVF(network, latch); |
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1449 | array_free(latchMvfAig); |
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1450 | latchMvfAig = Bmc_ReadMvfAig(latch, nodeToMvfAigTable); |
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1451 | } |
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1452 | |
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1453 | mvfSize = array_n(initMvfAig); |
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1454 | initBAig = ALLOC(bAigEdge_t, mvfSize); |
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1455 | dataBAig = ALLOC(bAigEdge_t, mvfSize); |
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1456 | latchBAig = ALLOC(bAigEdge_t, mvfSize); |
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1457 | |
---|
1458 | for(i=0; i< mvfSize; i++){ |
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1459 | dataBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(dataMvfAig, i)); |
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1460 | latchBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(latchMvfAig, i)); |
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1461 | initBAig[i] = bAig_GetCanonical(manager,MvfAig_FunctionReadComponent(initMvfAig, i)); |
---|
1462 | } |
---|
1463 | /* Generate the CNF for the transition functions */ |
---|
1464 | for (k=from; k < to; k++){ |
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1465 | PureSatGenerateClausesFromStateTostateWithTable(manager, dataBAig,latchBAig, mvfSize, k, |
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1466 | k+1, cnfClauses,0,ClsidxToLatchTable, nodeName); |
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1467 | } /* for k state loop */ |
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1468 | FREE(initBAig); |
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1469 | FREE(dataBAig); |
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1470 | FREE(latchBAig); |
---|
1471 | } /* ForEachLatch loop*/ |
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1472 | |
---|
1473 | return; |
---|
1474 | } |
---|