[14] | 1 | /**CFile*********************************************************************** |
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| 2 | |
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| 3 | FileName [eqvCmd.c] |
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| 4 | |
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| 5 | PackageName [eqv] |
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| 6 | |
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| 7 | Synopsis [Implements the eqv commands.] |
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| 8 | |
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| 9 | Description [This file initializes the eqv package and provides the |
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| 10 | interface between the command line and the top level routine which does the |
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| 11 | equivalence checking.] |
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| 12 | |
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| 13 | Author [Shaz Qadeer] |
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| 14 | |
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| 15 | Copyright [Copyright (c) 1994-1996 The Regents of the Univ. of California. |
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| 16 | All rights reserved. |
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| 17 | |
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| 18 | Permission is hereby granted, without written agreement and without license |
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| 19 | or royalty fees, to use, copy, modify, and distribute this software and its |
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| 20 | documentation for any purpose, provided that the above copyright notice and |
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| 21 | the following two paragraphs appear in all copies of this software. |
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| 22 | |
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| 23 | IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR |
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| 24 | DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT |
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| 25 | OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF |
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| 26 | CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | |
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| 28 | THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
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| 29 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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| 30 | FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN |
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| 31 | "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE |
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| 32 | MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.] |
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| 33 | |
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| 34 | ******************************************************************************/ |
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| 35 | |
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| 36 | #include "eqvInt.h" |
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| 37 | |
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| 38 | static char rcsid[] UNUSED = "$Id: eqvCmd.c,v 1.20 2009/04/11 18:26:04 fabio Exp $"; |
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| 39 | |
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| 40 | /*---------------------------------------------------------------------------*/ |
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| 41 | /* Variable declarations */ |
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| 42 | /*---------------------------------------------------------------------------*/ |
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| 43 | static jmp_buf timeOutEnv; |
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| 44 | |
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| 45 | |
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| 46 | /**AutomaticStart*************************************************************/ |
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| 47 | |
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| 48 | /*---------------------------------------------------------------------------*/ |
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| 49 | /* Static function prototypes */ |
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| 50 | /*---------------------------------------------------------------------------*/ |
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| 51 | |
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| 52 | static int CommandCombEquivalence(Hrc_Manager_t **hmgr, int argc, char **argv); |
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| 53 | static int CommandSeqEquivalence(Hrc_Manager_t **hmgr, int argc, char **argv); |
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| 54 | static void TimeOutHandle(void); |
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| 55 | |
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| 56 | /**AutomaticEnd***************************************************************/ |
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| 57 | |
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| 58 | |
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| 59 | /*---------------------------------------------------------------------------*/ |
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| 60 | /* Definition of exported functions */ |
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| 61 | /*---------------------------------------------------------------------------*/ |
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| 62 | |
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| 63 | /**Function******************************************************************** |
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| 64 | |
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| 65 | Synopsis [This function initializes the eqv package.] |
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| 66 | |
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| 67 | SideEffects [] |
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| 68 | |
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| 69 | SeeAlso [Eqv_End()] |
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| 70 | |
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| 71 | ******************************************************************************/ |
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| 72 | void |
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| 73 | Eqv_Init(void) |
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| 74 | { |
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| 75 | Cmd_CommandAdd("comb_verify", CommandCombEquivalence, 0); |
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| 76 | Cmd_CommandAdd("seq_verify", CommandSeqEquivalence, 0); |
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| 77 | } |
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| 78 | |
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| 79 | /**Function******************************************************************** |
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| 80 | |
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| 81 | Synopsis [This function ends the eqv package.] |
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| 82 | |
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| 83 | SideEffects [] |
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| 84 | |
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| 85 | SeeAlso [Eqv_Init()] |
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| 86 | |
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| 87 | ******************************************************************************/ |
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| 88 | void |
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| 89 | Eqv_End(void) |
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| 90 | { |
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| 91 | } |
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| 92 | |
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| 93 | /*---------------------------------------------------------------------------*/ |
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| 94 | /* Definition of internal functions */ |
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| 95 | /*---------------------------------------------------------------------------*/ |
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| 96 | |
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| 97 | /*---------------------------------------------------------------------------*/ |
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| 98 | /* Definition of static functions */ |
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| 99 | /*---------------------------------------------------------------------------*/ |
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| 100 | |
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| 101 | /**Function******************************************************************** |
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| 102 | |
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| 103 | Synopsis [This function sits between the command line and the top level |
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| 104 | function which checks combinational equivalence.] |
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| 105 | |
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| 106 | Description [The function parses the command line and generates the |
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| 107 | arguments to the top level routine.] |
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| 108 | |
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| 109 | SideEffects [If the variables of the network present at the current node of |
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| 110 | the existing hierarchy have not been ordered, they get ordered.] |
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| 111 | |
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| 112 | SeeAlso [Eqv_NetworkVerifyCombinationalEquivalence] |
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| 113 | |
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| 114 | CommandName [comb_verify] |
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| 115 | |
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| 116 | CommandSynopsis [verify the combinational equivalence of two flattened networks] |
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| 117 | |
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| 118 | CommandArguments [ \[-b\] \[-f <filename>\] \[-h\] \[-o <ordering |
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| 119 | method>\] \[-t <timeOut>\] \[-1 <partition method>\] \[-2 |
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| 120 | <partition method>\] \[-i\] <filename1> \[<filename2>\] ] |
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| 121 | |
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| 122 | CommandDescription [This command verifies the combinational equivalence of |
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| 123 | two flattened networks. In particular, any set of functions (the roots), |
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| 124 | defined over any set of intermediate variables (the leaves), can be checked |
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| 125 | for equivalence between the two networks. Roots and leaves are subsets of |
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| 126 | the nodes of a network, with the restriction that the leaves should form a |
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| 127 | complete support for the roots. The correspondence between the roots and the |
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| 128 | leaves in the two networks is specified in a file given by the option -f |
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| 129 | <filename>. The default option |
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| 130 | assumes that the roots are the combinational outputs and the leaves are the |
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| 131 | combinational inputs.<p> |
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| 132 | |
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| 133 | When there is a pseudo input in the set of leaves, the range of values it |
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| 134 | can take should be the same as that of the multi-valued variable |
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| 135 | corresponding to it, for comb_verify to function correctly. |
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| 136 | This restriction will be removed in future.<p> |
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| 137 | |
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| 138 | There are two ways to do combinational verification. In the first mode, two |
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| 139 | BLIF-MV files are given as arguments to the command, e.g.<p> |
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| 140 | |
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| 141 | <pre> |
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| 142 | vis> comb_verify foo.mv bar.mv |
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| 143 | </pre> |
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| 144 | |
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| 145 | Verification is done for the flattened networks at the root nodes of the two |
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| 146 | BLIF-MV hierarchies. In any error messages printed, "network1" refers to |
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| 147 | the first file, and "network2" refers to the second. Both of these networks |
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| 148 | are freed at the end of the command. This mode is totally independent from |
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| 149 | any existing hierarchy previously read in. |
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| 150 | |
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| 151 | In the second mode, it is assumed that a hierarchy has already been read |
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| 152 | in. Then, comb_verify can be called with a single BLIF-MV file, and this |
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| 153 | will do the comparison between the network present at the current node |
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| 154 | ("network1") and the network corresponding to the root node of the hierarchy |
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| 155 | in the BLIF-MV file("network2"). A typical sequence of commands is:<p> |
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| 156 | |
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| 157 | <pre> |
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| 158 | vis> read_blifmv foo.mv |
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| 159 | vis> init_verify |
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| 160 | vis> comb_verify bar.mv |
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| 161 | </pre> |
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| 162 | |
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| 163 | If a hierarchy has been read in but a flattened network does not exist at |
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| 164 | the current node (flatten_hierarchy has not been invoked), the command does |
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| 165 | nothing. If a network exists at the |
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| 166 | current node, but the variables haven't been ordered, then the variables are |
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| 167 | ordered and a partition created. This partition is freed at the end. A |
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| 168 | side-effect is that the variables are ordered. If a partition exists, then |
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| 169 | it is used if the vertices corresponding to the roots specified are present |
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| 170 | in it, otherwise a new partition is created with the current ordering. The |
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| 171 | partition created for the new network read in is always freed at the end.<p> |
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| 172 | |
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| 173 | Command options:<p> |
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| 174 | |
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| 175 | <dl> |
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| 176 | |
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| 177 | <dt> -b |
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| 178 | <dd> Specifies that the files are BLIF files and not BLIF-MV files. |
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| 179 | <p> |
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| 180 | |
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| 181 | <dt> -f <filename> |
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| 182 | <dd> Provides the correspondence between the leaves and roots of |
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| 183 | network1 and network2. If this option is not used, it is assumed |
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| 184 | that the correspondence is by name, except that two latch inputs |
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| 185 | match if either they have the same name or the corresponding latch |
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| 186 | outputs have the same name. Leaves are the combinational inputs, |
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| 187 | and roots are the combinational outputs. <p> |
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| 188 | |
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| 189 | <dt> -h |
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| 190 | <dd> Print the command usage. |
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| 191 | <p> |
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| 192 | |
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| 193 | <dt> -t <timeOut> |
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| 194 | <dd> Time in seconds allowed to perform equivalence checking. The default |
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| 195 | is infinity.<p> |
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| 196 | |
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| 197 | <dt> -o <ordering method> |
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| 198 | <dd> Specifies the ordering method to be used for assigning a common |
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| 199 | ordering to the leaves of network1 and network2. If this option is not used, |
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| 200 | ordering is done using a default method. Currently, only the default method |
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| 201 | is available. <p> |
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| 202 | |
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| 203 | <dt> -1 <partition method> |
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| 204 | |
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| 205 | <dd> Specifies the partitioning method to be used for network1. Supported |
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| 206 | methods are "total", "partial", and "inout" (see the command |
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| 207 | <code>build_partition_mdds</code> for more information). If this option is |
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| 208 | not specified, then the default method "inout" is used. <p> |
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| 209 | |
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| 210 | <dt> -2 <partition method> |
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| 211 | <dd> Specifies the partitioning method to be used for network2. Supported |
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| 212 | methods are "total", "partial", and "inout" (see the command |
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| 213 | <code>build_partition_mdds</code> for more information). If this option is |
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| 214 | not specified, then default method "inout" is used. <p> |
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| 215 | |
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| 216 | <dt> -i |
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| 217 | <dd> Print Bdd statistics. |
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| 218 | |
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| 219 | </dl> |
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| 220 | ] |
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| 221 | |
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| 222 | ******************************************************************************/ |
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| 223 | |
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| 224 | static int |
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| 225 | CommandCombEquivalence( |
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| 226 | Hrc_Manager_t **hmgr, |
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| 227 | int argc, |
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| 228 | char **argv) |
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| 229 | { |
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| 230 | static int timeOutPeriod; |
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| 231 | static Hrc_Manager_t *hmgr1; |
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| 232 | static Hrc_Manager_t *hmgr2; |
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| 233 | static Ntk_Network_t *network1; |
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| 234 | static Ntk_Network_t *network2; |
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| 235 | int c; |
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| 236 | int check; |
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| 237 | FILE *fp; |
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| 238 | FILE *inputFile = NIL(FILE); |
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| 239 | char *fileName1; |
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| 240 | char *fileName2; |
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| 241 | char *name1; |
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| 242 | char *name2; |
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| 243 | st_generator *gen; |
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| 244 | static Part_PartitionMethod partMethod1; |
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| 245 | static Part_PartitionMethod partMethod2; |
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| 246 | static OFT AssignCommonOrder; |
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| 247 | static st_table *inputMap; |
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| 248 | static st_table *outputMap; |
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| 249 | st_table *rootsTable = NIL(st_table); |
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| 250 | st_table *leavesTable = NIL(st_table); |
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| 251 | boolean fileFlag = FALSE; |
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| 252 | boolean equivalent; |
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| 253 | boolean printBddInfo = FALSE; |
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| 254 | static boolean execMode; /* FALSE: verify against current network, |
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| 255 | TRUE: verify the two given networks */ |
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| 256 | boolean isBlif = FALSE; |
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| 257 | |
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| 258 | /* |
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| 259 | * These are the default values. These variables must be declared static |
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| 260 | * to avoid lint warnings. Since they are static, we must reinitialize |
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| 261 | * them outside of the variable declarations. |
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| 262 | */ |
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| 263 | timeOutPeriod = 0; |
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| 264 | hmgr1 = NIL(Hrc_Manager_t); |
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| 265 | hmgr2 = NIL(Hrc_Manager_t); |
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| 266 | partMethod1 = Part_Default_c; |
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| 267 | partMethod2 = Part_Default_c; |
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| 268 | AssignCommonOrder = DefaultCommonOrder; |
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| 269 | inputMap = NIL(st_table); |
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| 270 | outputMap = NIL(st_table); |
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| 271 | |
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| 272 | error_init(); |
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| 273 | util_getopt_reset(); |
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| 274 | while((c = util_getopt(argc, argv, "bf:o:1:2:ht:i")) != EOF) { |
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| 275 | switch(c) { |
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| 276 | case 'b': |
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| 277 | isBlif = TRUE; |
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| 278 | break; |
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| 279 | case 'f': |
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| 280 | if((inputFile = Cmd_FileOpen(util_optarg, "r", NIL(char *), 1)) == |
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| 281 | NIL(FILE)) { |
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| 282 | (void) fprintf(vis_stderr, "** eqv error: File %s not found.\n", util_optarg); |
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| 283 | goto usage; |
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| 284 | } |
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| 285 | fileFlag = 1; |
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| 286 | break; |
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| 287 | case 'o': |
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| 288 | /* The following line causes a seg fault, because |
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| 289 | FindOrderingMethod() always returns NULL, and currently |
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| 290 | only DefaultCommonOrder is used. |
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| 291 | AssignCommonOrder = FindOrderingMethod(); |
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| 292 | */ |
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| 293 | /* The programmer supplies and modifies this function if any new |
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| 294 | ordering method is introduced. FindOrderingMethod() should return |
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| 295 | the type OFT. */ |
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| 296 | break; |
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| 297 | case 't': |
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| 298 | timeOutPeriod = atoi(util_optarg); |
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| 299 | break; |
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| 300 | case '1': |
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| 301 | if(!strcmp(util_optarg, "total")) { |
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| 302 | partMethod1 = Part_Total_c; |
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| 303 | } |
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| 304 | else |
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| 305 | if(!strcmp(util_optarg, "partial")) { |
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| 306 | partMethod1 = Part_Partial_c; |
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| 307 | } |
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| 308 | else |
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| 309 | if(!strcmp(util_optarg, "inout")) { |
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| 310 | partMethod1 = Part_InOut_c; |
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| 311 | } |
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| 312 | else { |
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| 313 | (void) fprintf(vis_stderr, "** eqv error: Unknown partition method 1\n"); |
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| 314 | goto usage; |
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| 315 | } |
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| 316 | break; |
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| 317 | case '2': |
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| 318 | if(!strcmp(util_optarg, "total")) { |
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| 319 | partMethod2 = Part_Total_c; |
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| 320 | } |
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| 321 | else |
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| 322 | if(!strcmp(util_optarg, "partial")) { |
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| 323 | partMethod2 = Part_Partial_c; |
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| 324 | } |
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| 325 | else |
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| 326 | if(!strcmp(util_optarg, "inout")) { |
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| 327 | partMethod2 = Part_InOut_c; |
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| 328 | } |
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| 329 | else { |
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| 330 | (void) fprintf(vis_stderr, "** eqv error: Unknown partition method 2\n"); |
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| 331 | goto usage; |
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| 332 | } |
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| 333 | break; |
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| 334 | case 'i': |
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| 335 | printBddInfo = TRUE; |
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| 336 | break; |
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| 337 | case 'h': |
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| 338 | goto usage; |
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| 339 | default : |
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| 340 | goto usage; |
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| 341 | } |
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| 342 | } |
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| 343 | if(argc == 1) { |
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| 344 | goto usage; |
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| 345 | } |
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| 346 | |
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| 347 | if(argc == util_optind+1) { |
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| 348 | execMode = FALSE; |
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| 349 | } |
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| 350 | else |
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| 351 | if(argc == util_optind+2) { |
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| 352 | execMode = TRUE; |
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| 353 | } |
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| 354 | else { |
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| 355 | error_append("** eqv error: Improper number of arguments.\n"); |
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| 356 | (void) fprintf(vis_stderr, "%s", error_string()); |
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| 357 | goto usage; |
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| 358 | } |
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| 359 | if(execMode == FALSE) { |
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| 360 | hmgr1 = *hmgr; |
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| 361 | if(Hrc_ManagerReadCurrentNode(hmgr1) == NIL(Hrc_Node_t)) { |
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| 362 | (void) fprintf(vis_stderr, "** eqv error: The hierarchy manager is empty. Read in design.\n"); |
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| 363 | return 1; |
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| 364 | } |
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| 365 | network1 = (Ntk_Network_t *) Hrc_NodeReadApplInfo( |
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| 366 | Hrc_ManagerReadCurrentNode(hmgr1), NTK_HRC_NODE_APPL_KEY); |
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| 367 | if(network1 == NIL(Ntk_Network_t)) { |
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| 368 | (void) fprintf(vis_stderr, "** eqv error: There is no network. Use flatten_hierarchy.\n"); |
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| 369 | return 1; |
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| 370 | } |
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| 371 | if(Ntk_NetworkReadApplInfo(network1, PART_NETWORK_APPL_KEY) == NIL(void)) { |
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| 372 | (void) fprintf(vis_stderr, "** eqv error: Network has not been partitioned. Use build_partition_mdds.\n"); |
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| 373 | return 1; |
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| 374 | } |
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| 375 | fileName2 = argv[util_optind]; |
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| 376 | if(isBlif) { |
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| 377 | if((hmgr2 = Io_BlifRead(fileName2, FALSE)) == NIL(Hrc_Manager_t)) { |
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| 378 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
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| 379 | goto usage; |
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| 380 | } |
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| 381 | } |
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| 382 | else { |
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| 383 | if((fp = Cmd_FileOpen(fileName2, "r", NIL(char *), 1)) == NIL(FILE)) { |
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| 384 | (void) fprintf(vis_stderr, "** eqv error: File %s not found\n", fileName2); |
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| 385 | return 1; |
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| 386 | } |
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| 387 | hmgr2 = Io_BlifMvRead(fp, NIL(Hrc_Manager_t), FALSE, FALSE, FALSE); |
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| 388 | fclose(fp); |
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| 389 | if(hmgr2 == NIL(Hrc_Manager_t)) { |
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| 390 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
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| 391 | return 1; |
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| 392 | } |
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| 393 | } |
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| 394 | network2 = Ntk_HrcNodeConvertToNetwork(Hrc_ManagerReadCurrentNode(hmgr2), |
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| 395 | TRUE, (lsList) NULL); |
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| 396 | if(network2 == NIL(Ntk_Network_t)) { |
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| 397 | Hrc_ManagerFree(hmgr2); |
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| 398 | (void) fprintf(vis_stderr, "** eqv error: Error in network2.\n"); |
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| 399 | return 1; |
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| 400 | } |
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| 401 | |
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| 402 | } |
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| 403 | else { |
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| 404 | fileName1 = argv[util_optind]; |
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| 405 | fileName2 = argv[util_optind+1]; |
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| 406 | if(isBlif) { |
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| 407 | if((hmgr1 = Io_BlifRead(fileName1, FALSE)) == NIL(Hrc_Manager_t)) { |
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| 408 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName1); |
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| 409 | return 1; |
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| 410 | } |
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| 411 | if((hmgr2 = Io_BlifRead(fileName2, FALSE)) == NIL(Hrc_Manager_t)) { |
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| 412 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
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| 413 | if(hmgr1) { |
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| 414 | Hrc_ManagerFree(hmgr1); |
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| 415 | } |
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| 416 | return 1; |
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| 417 | } |
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| 418 | } |
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| 419 | else { |
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| 420 | if((fp = Cmd_FileOpen(fileName1, "r", NIL(char *), 1)) == NIL(FILE)) { |
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| 421 | (void) fprintf(vis_stderr, "** eqv error: File %s not found\n", fileName1); |
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| 422 | return 1; |
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| 423 | } |
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| 424 | hmgr1 = Io_BlifMvRead(fp, NIL(Hrc_Manager_t), FALSE, FALSE, FALSE); |
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| 425 | fclose(fp); |
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| 426 | if(hmgr1 == NIL(Hrc_Manager_t)) { |
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| 427 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName1); |
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| 428 | goto usage; |
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| 429 | } |
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| 430 | if((fp = Cmd_FileOpen(fileName2, "r", NIL(char *), 1)) == NIL(FILE)) { |
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| 431 | (void) fprintf(vis_stderr, "** eqv error: File %s not found\n", fileName2); |
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| 432 | if(hmgr1) { |
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| 433 | Hrc_ManagerFree(hmgr1); |
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| 434 | } |
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| 435 | return 1; |
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| 436 | } |
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| 437 | hmgr2 = Io_BlifMvRead(fp, NIL(Hrc_Manager_t), FALSE, FALSE, FALSE); |
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| 438 | fclose(fp); |
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| 439 | if(hmgr2 == NIL(Hrc_Manager_t)) { |
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| 440 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
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| 441 | if(hmgr1) { |
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| 442 | Hrc_ManagerFree(hmgr1); |
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| 443 | } |
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| 444 | return 1; |
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| 445 | } |
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| 446 | } |
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| 447 | network1 = Ntk_HrcNodeConvertToNetwork(Hrc_ManagerReadCurrentNode(hmgr1), |
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| 448 | TRUE, (lsList) NULL); |
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| 449 | network2 = Ntk_HrcNodeConvertToNetwork(Hrc_ManagerReadCurrentNode(hmgr2), |
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| 450 | TRUE, (lsList) NULL); |
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| 451 | |
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| 452 | if((network1 == NIL(Ntk_Network_t)) || (network2 == NIL(Ntk_Network_t))) { |
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| 453 | if(network1 == NIL(Ntk_Network_t)) { |
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| 454 | (void) fprintf(vis_stderr, "** eqv error: Error in network1.\n"); |
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| 455 | } |
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| 456 | if(network2 == NIL(Ntk_Network_t)) { |
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| 457 | (void) fprintf(vis_stderr, "** eqv error: Error in network2.\n"); |
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| 458 | } |
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| 459 | Hrc_ManagerFree(hmgr1); |
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| 460 | Hrc_ManagerFree(hmgr2); |
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| 461 | return 1; |
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| 462 | } |
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| 463 | if((network1 == NIL(Ntk_Network_t)) || (network2 == NIL(Ntk_Network_t))) { |
---|
| 464 | if(network1 == NIL(Ntk_Network_t)) { |
---|
| 465 | (void) fprintf(vis_stderr, "** eqv error: Error in network1.\n"); |
---|
| 466 | } |
---|
| 467 | if(network2 == NIL(Ntk_Network_t)) { |
---|
| 468 | (void) fprintf(vis_stderr, "** eqv error: Error in network2.\n"); |
---|
| 469 | } |
---|
| 470 | Hrc_ManagerFree(hmgr1); |
---|
| 471 | Hrc_ManagerFree(hmgr2); |
---|
| 472 | return 1; |
---|
| 473 | } |
---|
| 474 | } |
---|
| 475 | |
---|
| 476 | if(Ntk_NetworkReadNumCombInputs(network1) != |
---|
| 477 | Ntk_NetworkReadNumCombInputs(network2)) { |
---|
| 478 | error_append("** eqv error: Different number of inputs in the two networks.\n"); |
---|
| 479 | if(!fileFlag) { |
---|
| 480 | if(execMode) { |
---|
| 481 | Hrc_ManagerFree(hmgr1); |
---|
| 482 | Ntk_NetworkFree(network1); |
---|
| 483 | } |
---|
| 484 | Hrc_ManagerFree(hmgr2); |
---|
| 485 | Ntk_NetworkFree(network2); |
---|
| 486 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 487 | return 1; |
---|
| 488 | } |
---|
| 489 | } |
---|
| 490 | |
---|
| 491 | if(fileFlag) { |
---|
| 492 | rootsTable = st_init_table(strcmp, st_strhash); |
---|
| 493 | leavesTable = st_init_table(strcmp, st_strhash); |
---|
| 494 | check = ReadRootLeafMap(inputFile, rootsTable, leavesTable); |
---|
| 495 | fclose(inputFile); |
---|
| 496 | switch (check) { |
---|
| 497 | case 0 : /* error */ |
---|
| 498 | st_free_table(rootsTable); |
---|
| 499 | st_free_table(leavesTable); |
---|
| 500 | (void) fprintf(vis_stderr, "** eqv error: No data in the input file.\n"); |
---|
| 501 | if(execMode) { |
---|
| 502 | Hrc_ManagerFree(hmgr1); |
---|
| 503 | Ntk_NetworkFree(network1); |
---|
| 504 | } |
---|
| 505 | Hrc_ManagerFree(hmgr2); |
---|
| 506 | Ntk_NetworkFree(network2); |
---|
| 507 | return 1; |
---|
| 508 | case 1 : /* leaves only */ |
---|
| 509 | st_free_table(rootsTable); |
---|
| 510 | inputMap = MapNamesToNodes(network1, network2, leavesTable); |
---|
| 511 | st_foreach_item(leavesTable, gen, &name1, &name2) { |
---|
| 512 | FREE(name1); |
---|
| 513 | FREE(name2); |
---|
| 514 | } |
---|
| 515 | st_free_table(leavesTable); |
---|
| 516 | if(inputMap == NIL(st_table)) { |
---|
| 517 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 518 | if(execMode) { |
---|
| 519 | Hrc_ManagerFree(hmgr1); |
---|
| 520 | Ntk_NetworkFree(network1); |
---|
| 521 | } |
---|
| 522 | Hrc_ManagerFree(hmgr2); |
---|
| 523 | Ntk_NetworkFree(network2); |
---|
| 524 | return 1; |
---|
| 525 | } |
---|
| 526 | if((outputMap = MapCombOutputsByName(network1, network2)) == |
---|
| 527 | NIL(st_table)) { |
---|
| 528 | st_free_table(inputMap); |
---|
| 529 | if(execMode) { |
---|
| 530 | Hrc_ManagerFree(hmgr1); |
---|
| 531 | Ntk_NetworkFree(network1); |
---|
| 532 | } |
---|
| 533 | Hrc_ManagerFree(hmgr2); |
---|
| 534 | Ntk_NetworkFree(network2); |
---|
| 535 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 536 | return 1; |
---|
| 537 | } |
---|
| 538 | if(!TestRootsAndLeavesAreValid(network1, network2, inputMap, |
---|
| 539 | outputMap)){ |
---|
| 540 | st_free_table(inputMap); |
---|
| 541 | st_free_table(outputMap); |
---|
| 542 | if(execMode) { |
---|
| 543 | Hrc_ManagerFree(hmgr1); |
---|
| 544 | Ntk_NetworkFree(network1); |
---|
| 545 | } |
---|
| 546 | Hrc_ManagerFree(hmgr2); |
---|
| 547 | Ntk_NetworkFree(network2); |
---|
| 548 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 549 | return 1; |
---|
| 550 | } |
---|
| 551 | break; |
---|
| 552 | case 2 : /* roots only */ |
---|
| 553 | st_free_table(leavesTable); |
---|
| 554 | outputMap = MapNamesToNodes(network1, network2, rootsTable); |
---|
| 555 | st_foreach_item(rootsTable, gen, &name1, &name2) { |
---|
| 556 | FREE(name1); |
---|
| 557 | FREE(name2); |
---|
| 558 | } |
---|
| 559 | st_free_table(rootsTable); |
---|
| 560 | if(outputMap ==NIL(st_table)) { |
---|
| 561 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 562 | if(execMode) { |
---|
| 563 | Hrc_ManagerFree(hmgr1); |
---|
| 564 | Ntk_NetworkFree(network1); |
---|
| 565 | } |
---|
| 566 | Hrc_ManagerFree(hmgr2); |
---|
| 567 | Ntk_NetworkFree(network2); |
---|
| 568 | return 1; |
---|
| 569 | } |
---|
| 570 | if((inputMap = MapCombInputsByName(network1, network2)) == |
---|
| 571 | NIL(st_table)) { |
---|
| 572 | st_free_table(outputMap); |
---|
| 573 | if(execMode) { |
---|
| 574 | Hrc_ManagerFree(hmgr1); |
---|
| 575 | Ntk_NetworkFree(network1); |
---|
| 576 | } |
---|
| 577 | Hrc_ManagerFree(hmgr2); |
---|
| 578 | Ntk_NetworkFree(network2); |
---|
| 579 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 580 | return 1; |
---|
| 581 | } |
---|
| 582 | if(!TestRootsAndLeavesAreValid(network1, network2, inputMap, |
---|
| 583 | outputMap)){ |
---|
| 584 | st_free_table(inputMap); |
---|
| 585 | st_free_table(outputMap); |
---|
| 586 | if(execMode) { |
---|
| 587 | Hrc_ManagerFree(hmgr1); |
---|
| 588 | Ntk_NetworkFree(network1); |
---|
| 589 | } |
---|
| 590 | Hrc_ManagerFree(hmgr2); |
---|
| 591 | Ntk_NetworkFree(network2); |
---|
| 592 | return 1; |
---|
| 593 | } |
---|
| 594 | break; |
---|
| 595 | case 3 : /* both leaves and roots */ |
---|
| 596 | inputMap = MapNamesToNodes(network1, network2, leavesTable); |
---|
| 597 | st_foreach_item(leavesTable, gen, &name1, &name2) { |
---|
| 598 | FREE(name1); |
---|
| 599 | FREE(name2); |
---|
| 600 | } |
---|
| 601 | st_free_table(leavesTable); |
---|
| 602 | outputMap = MapNamesToNodes(network1, network2, rootsTable); |
---|
| 603 | st_foreach_item(rootsTable, gen, &name1, &name2) { |
---|
| 604 | FREE(name1); |
---|
| 605 | FREE(name2); |
---|
| 606 | } |
---|
| 607 | st_free_table(rootsTable); |
---|
| 608 | if((inputMap == NIL(st_table)) || (outputMap == NIL(st_table))) { |
---|
| 609 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 610 | if(inputMap) { |
---|
| 611 | st_free_table(inputMap); |
---|
| 612 | } |
---|
| 613 | if(outputMap) { |
---|
| 614 | st_free_table(outputMap); |
---|
| 615 | } |
---|
| 616 | if(execMode) { |
---|
| 617 | Hrc_ManagerFree(hmgr1); |
---|
| 618 | Ntk_NetworkFree(network1); |
---|
| 619 | } |
---|
| 620 | Hrc_ManagerFree(hmgr2); |
---|
| 621 | Ntk_NetworkFree(network2); |
---|
| 622 | return 1; |
---|
| 623 | } |
---|
| 624 | if(!TestRootsAndLeavesAreValid(network1, network2, inputMap, |
---|
| 625 | outputMap)){ |
---|
| 626 | st_free_table(inputMap); |
---|
| 627 | st_free_table(outputMap); |
---|
| 628 | if(execMode) { |
---|
| 629 | Hrc_ManagerFree(hmgr1); |
---|
| 630 | Ntk_NetworkFree(network1); |
---|
| 631 | } |
---|
| 632 | Hrc_ManagerFree(hmgr2); |
---|
| 633 | Ntk_NetworkFree(network2); |
---|
| 634 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 635 | return 1; |
---|
| 636 | } |
---|
| 637 | break; |
---|
| 638 | } |
---|
| 639 | } |
---|
| 640 | else { |
---|
| 641 | inputMap = MapCombInputsByName(network1, network2); |
---|
| 642 | outputMap = MapCombOutputsByName(network1, network2); |
---|
| 643 | if((inputMap == NIL(st_table)) || (outputMap == NIL(st_table))) { |
---|
| 644 | if(inputMap) { |
---|
| 645 | st_free_table(inputMap); |
---|
| 646 | } |
---|
| 647 | if(outputMap) { |
---|
| 648 | st_free_table(outputMap); |
---|
| 649 | } |
---|
| 650 | if(execMode) { |
---|
| 651 | Hrc_ManagerFree(hmgr1); |
---|
| 652 | Ntk_NetworkFree(network1); |
---|
| 653 | } |
---|
| 654 | Hrc_ManagerFree(hmgr2); |
---|
| 655 | Ntk_NetworkFree(network2); |
---|
| 656 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 657 | return 1; |
---|
| 658 | } |
---|
| 659 | } |
---|
| 660 | |
---|
| 661 | /* Start the timer before calling the equivalence checker. */ |
---|
| 662 | if (timeOutPeriod > 0){ |
---|
| 663 | (void) signal(SIGALRM, (void(*)(int))TimeOutHandle); |
---|
| 664 | (void) alarm(timeOutPeriod); |
---|
| 665 | if (setjmp(timeOutEnv) > 0) { |
---|
| 666 | (void) fprintf(vis_stderr, "Timeout occurred after %d seconds.\n", timeOutPeriod); |
---|
| 667 | alarm(0); |
---|
| 668 | return 1; |
---|
| 669 | } |
---|
| 670 | } |
---|
| 671 | |
---|
| 672 | equivalent = Eqv_NetworkVerifyCombinationalEquivalence(network1, network2, |
---|
| 673 | inputMap, outputMap, |
---|
| 674 | AssignCommonOrder, |
---|
| 675 | partMethod1, |
---|
| 676 | partMethod2); |
---|
| 677 | |
---|
| 678 | if(equivalent) { |
---|
| 679 | (void) fprintf(vis_stdout, "Networks are combinationally equivalent.\n\n"); |
---|
| 680 | } |
---|
| 681 | else { |
---|
| 682 | (void) fprintf(vis_stdout, "%s", error_string()); |
---|
| 683 | (void) fprintf(vis_stdout, "Networks are NOT combinationally equivalent.\n\n"); |
---|
| 684 | } |
---|
| 685 | |
---|
| 686 | if (printBddInfo) { |
---|
| 687 | bdd_print_stats(Ntk_NetworkReadMddManager(network1), vis_stdout); |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | st_free_table(inputMap); |
---|
| 691 | st_free_table(outputMap); |
---|
| 692 | if(execMode) { |
---|
| 693 | Hrc_ManagerFree(hmgr1); |
---|
| 694 | Ntk_NetworkFree(network1); |
---|
| 695 | } |
---|
| 696 | Hrc_ManagerFree(hmgr2); |
---|
| 697 | Ntk_NetworkFree(network2); |
---|
| 698 | |
---|
| 699 | alarm(0); |
---|
| 700 | return 0; /* normal exit */ |
---|
| 701 | |
---|
| 702 | usage: |
---|
| 703 | (void) fprintf(vis_stderr, "usage: comb_verify [-b] [-f filename] [-h] [-o ordering method] [-t time]\n"); |
---|
| 704 | (void) fprintf(vis_stderr, " [-1 partMethod1] [-2 partMethod2] [-i] file1 [file2]\n"); |
---|
| 705 | (void) fprintf(vis_stderr, " -b input files are BLIF\n"); |
---|
| 706 | (void) fprintf(vis_stderr, " -f file variable name correspondence file\n"); |
---|
| 707 | (void) fprintf(vis_stderr, " -h print the command usage\n"); |
---|
| 708 | (void) fprintf(vis_stderr, " -o method variable ordering method\n"); |
---|
| 709 | (void) fprintf(vis_stderr, " -t time time out period (in seconds)\n"); |
---|
| 710 | (void) fprintf(vis_stderr, " -1 method partitioning method for network1\n"); |
---|
| 711 | (void) fprintf(vis_stderr, " -2 method partitioning method for network2\n"); |
---|
| 712 | (void) fprintf(vis_stderr, " -i print Bdd statistics\n"); |
---|
| 713 | return 1; /* error exit */ |
---|
| 714 | } |
---|
| 715 | |
---|
| 716 | /**Function******************************************************************** |
---|
| 717 | |
---|
| 718 | Synopsis [This function sits between the command line and the main routine |
---|
| 719 | of sequential verification.] |
---|
| 720 | |
---|
| 721 | Description [The function parses the command line.] |
---|
| 722 | |
---|
| 723 | SideEffects [] |
---|
| 724 | |
---|
| 725 | SeeAlso [Eqv_NetworkVerifySequentialEquivalence] |
---|
| 726 | |
---|
| 727 | CommandName [seq_verify] |
---|
| 728 | |
---|
| 729 | CommandSynopsis [verify the sequential equivalence of two flattened networks] |
---|
| 730 | |
---|
| 731 | CommandArguments [\[-b\] \[-f <filename>\] \[-h\] \[-p <partition |
---|
| 732 | method>\] \[-t <timeOut>\] \[-B\] \[-i\] \[-r\] <filename> \[<filename>\]] |
---|
| 733 | |
---|
| 734 | CommandDescription [Please read the documentation for the command |
---|
| 735 | <code>comb_verify</code> before reading on. The concepts of roots and leaves |
---|
| 736 | in this command are the same as for <code>comb_verify</code>, except for an |
---|
| 737 | added constraint: the set of leaves has to be the set of all primary inputs. |
---|
| 738 | This obviously produces the constraint that both networks have the |
---|
| 739 | same number of primary inputs. Moreover, no pseudo inputs should be present |
---|
| 740 | in the two networks being compared. The set of roots can be an arbitrary |
---|
| 741 | subset of nodes.<p> |
---|
| 742 | |
---|
| 743 | The command verifies whether any state, where the values of two |
---|
| 744 | corresponding roots differ, can be reached from the set of |
---|
| 745 | initial states of the product machine. If this happens, a debug trace is |
---|
| 746 | provided.<p> |
---|
| 747 | |
---|
| 748 | The sequential verification is done by building the product finite state |
---|
| 749 | machine.<p> |
---|
| 750 | |
---|
| 751 | The command has two execution modes, just as for <code>comb_verify</code>. |
---|
| 752 | In the first mode, two BLIF-MV files are given as arguments to the |
---|
| 753 | command:<p> |
---|
| 754 | |
---|
| 755 | <pre> |
---|
| 756 | vis> seq_verify foo.mv bar.mv |
---|
| 757 | </pre> |
---|
| 758 | |
---|
| 759 | In the second mode, a single BLIF-MV file is taken. This is network2. It is |
---|
| 760 | assumed that network1 is from a hierarchy that has already been read in. If |
---|
| 761 | a network is present at the current node (i.e. flatten_hierarchy has been |
---|
| 762 | executed), it is used for verification; otherwise the command does |
---|
| 763 | nothing.<p> |
---|
| 764 | |
---|
| 765 | <pre> |
---|
| 766 | vis> read_blifmv foo.mv |
---|
| 767 | vis> flatten_hierarchy |
---|
| 768 | vis> seq_verify bar.mv |
---|
| 769 | </pre> |
---|
| 770 | |
---|
| 771 | Command options:<p> |
---|
| 772 | |
---|
| 773 | <dl> |
---|
| 774 | |
---|
| 775 | <dt> -b |
---|
| 776 | <dd> Specifies that the input files are BLIF files. |
---|
| 777 | <p> |
---|
| 778 | |
---|
| 779 | <dt> -f <filename> |
---|
| 780 | <dd> Provides the correspondence between the leaves and roots of network1 |
---|
| 781 | and network2. leaves has to be the set of primary inputs of the |
---|
| 782 | networks. roots can be any subset of nodes. If this option is not used, it |
---|
| 783 | is assumed that the correspondence is by name, and that the roots are the |
---|
| 784 | combinational outputs. <p> |
---|
| 785 | |
---|
| 786 | <dt> -h |
---|
| 787 | <dd> Print the command usage. |
---|
| 788 | <p> |
---|
| 789 | |
---|
| 790 | <dt> -p <partition method> |
---|
| 791 | <dd> Specifies the partitioning method for the product machine. Supported |
---|
| 792 | methods are "total", "partial", and "inout" (see the command |
---|
| 793 | <code>build_partition_mdds</code> for more information). If this option is |
---|
| 794 | not specified, then the default method "inout" is used. |
---|
| 795 | <p> |
---|
| 796 | |
---|
| 797 | <dt> -t <timeOut> |
---|
| 798 | <dd> Time in seconds allowed to perform equivalence checking. The default |
---|
| 799 | is infinity.<p> |
---|
| 800 | |
---|
| 801 | <dt> -B |
---|
| 802 | <dd> Use backward image computation to traverse the state space of |
---|
| 803 | the product machine. By default, forward image computaion is used. |
---|
| 804 | |
---|
| 805 | <dt> -i |
---|
| 806 | <dd> Print BDD statistics. This is the only way to see BDD stastics during |
---|
| 807 | this command. print_bdd_stats after this command doesn't show information |
---|
| 808 | related to this command. |
---|
| 809 | |
---|
| 810 | <dt> -r |
---|
| 811 | <dd> Enable BDD reordering during the equivalence check. Note that |
---|
| 812 | dynamic_var_ordering has no effect on whether reordering is enabled during |
---|
| 813 | the execution of seq_verify. |
---|
| 814 | </dl> |
---|
| 815 | |
---|
| 816 | ] |
---|
| 817 | |
---|
| 818 | ******************************************************************************/ |
---|
| 819 | static int |
---|
| 820 | CommandSeqEquivalence( |
---|
| 821 | Hrc_Manager_t **hmgr, |
---|
| 822 | int argc, |
---|
| 823 | char **argv) |
---|
| 824 | { |
---|
| 825 | static int timeOutPeriod; |
---|
| 826 | static Hrc_Manager_t *hmgr1; |
---|
| 827 | static Hrc_Manager_t *hmgr2; |
---|
| 828 | static Ntk_Network_t *network1; |
---|
| 829 | static Ntk_Network_t *network2; |
---|
| 830 | int c; |
---|
| 831 | int check; |
---|
| 832 | FILE *fp; |
---|
| 833 | static FILE *inputFile; |
---|
| 834 | char *fileName1; |
---|
| 835 | char *fileName2; |
---|
| 836 | char *name1; |
---|
| 837 | char *name2; |
---|
| 838 | st_generator *gen; |
---|
| 839 | static Part_PartitionMethod partMethod; |
---|
| 840 | st_table *outputMap = NIL(st_table); |
---|
| 841 | st_table *inputMap = NIL(st_table); |
---|
| 842 | st_table *rootsTable = NIL(st_table); |
---|
| 843 | st_table *leavesTable = NIL(st_table); |
---|
| 844 | static boolean fileFlag; |
---|
| 845 | static boolean execMode; /* FALSE: verify against the current network, |
---|
| 846 | TRUE: verify the two networks */ |
---|
| 847 | static boolean equivalent; |
---|
| 848 | boolean isBlif = FALSE; |
---|
| 849 | boolean printBddInfo = FALSE; |
---|
| 850 | static boolean useBackwardReach; |
---|
| 851 | boolean reordering = FALSE; |
---|
| 852 | |
---|
| 853 | /* |
---|
| 854 | * These are the default values. These variables must be declared static |
---|
| 855 | * to avoid lint warnings. Since they are static, we must reinitialize |
---|
| 856 | * them outside of the variable declarations. |
---|
| 857 | */ |
---|
| 858 | timeOutPeriod = 0; |
---|
| 859 | hmgr1 = NIL(Hrc_Manager_t); |
---|
| 860 | hmgr2 = NIL(Hrc_Manager_t); |
---|
| 861 | inputFile = NIL(FILE); |
---|
| 862 | partMethod = Part_Default_c; |
---|
| 863 | fileFlag = FALSE; |
---|
| 864 | equivalent = FALSE; |
---|
| 865 | useBackwardReach = FALSE; |
---|
| 866 | |
---|
| 867 | error_init(); |
---|
| 868 | util_getopt_reset(); |
---|
| 869 | while((c = util_getopt(argc, argv, "bBf:p:hFt:ir")) != EOF) { |
---|
| 870 | switch(c) { |
---|
| 871 | case 'b': |
---|
| 872 | isBlif = TRUE; |
---|
| 873 | break; |
---|
| 874 | case 'f': |
---|
| 875 | if((inputFile = Cmd_FileOpen(util_optarg, "r", NIL(char *), 1)) == |
---|
| 876 | NIL(FILE)) { |
---|
| 877 | (void) fprintf(vis_stderr, |
---|
| 878 | "** eqv error: File %s not found.\n", util_optarg); |
---|
| 879 | return 1; |
---|
| 880 | } |
---|
| 881 | fileFlag = 1; |
---|
| 882 | break; |
---|
| 883 | case 'p': |
---|
| 884 | if(!strcmp(util_optarg, "total")) { |
---|
| 885 | partMethod = Part_Total_c; |
---|
| 886 | } else { |
---|
| 887 | if(!strcmp(util_optarg, "partial")) { |
---|
| 888 | partMethod = Part_Partial_c; |
---|
| 889 | } else { |
---|
| 890 | if(!strcmp(util_optarg, "inout")) { |
---|
| 891 | partMethod = Part_InOut_c; |
---|
| 892 | } else { |
---|
| 893 | (void) fprintf(vis_stderr, |
---|
| 894 | "** eqv error: Unknown partition method\n"); |
---|
| 895 | goto usage; |
---|
| 896 | } |
---|
| 897 | } |
---|
| 898 | } |
---|
| 899 | break; |
---|
| 900 | case 't': |
---|
| 901 | timeOutPeriod = atoi(util_optarg); |
---|
| 902 | break; |
---|
| 903 | case 'B': |
---|
| 904 | useBackwardReach = TRUE; |
---|
| 905 | break; |
---|
| 906 | case 'h': |
---|
| 907 | goto usage; |
---|
| 908 | case 'i': |
---|
| 909 | printBddInfo = TRUE; |
---|
| 910 | break; |
---|
| 911 | case 'r': |
---|
| 912 | reordering = TRUE; |
---|
| 913 | break; |
---|
| 914 | default: |
---|
| 915 | goto usage; |
---|
| 916 | } |
---|
| 917 | } |
---|
| 918 | if(argc == 1) { |
---|
| 919 | goto usage; |
---|
| 920 | } |
---|
| 921 | if(argc == util_optind+1) { |
---|
| 922 | execMode = FALSE; |
---|
| 923 | } |
---|
| 924 | else |
---|
| 925 | if(argc == util_optind+2) { |
---|
| 926 | execMode = TRUE; |
---|
| 927 | } |
---|
| 928 | else { |
---|
| 929 | error_append("** eqv error: Improper number of arguments.\n"); |
---|
| 930 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 931 | goto usage; |
---|
| 932 | } |
---|
| 933 | if(execMode == FALSE) { |
---|
| 934 | hmgr1 = *hmgr; |
---|
| 935 | if(Hrc_ManagerReadCurrentNode(hmgr1) == NIL(Hrc_Node_t)) { |
---|
| 936 | (void) fprintf(vis_stderr, "** eqv error: The hierarchy manager is empty. Read in design.\n"); |
---|
| 937 | return 1; |
---|
| 938 | } |
---|
| 939 | network1 = (Ntk_Network_t *) Hrc_NodeReadApplInfo( |
---|
| 940 | Hrc_ManagerReadCurrentNode(hmgr1), NTK_HRC_NODE_APPL_KEY); |
---|
| 941 | if(network1 == NIL(Ntk_Network_t)) { |
---|
| 942 | (void) fprintf(vis_stderr, "** eqv error: There is no network. Use flatten_hierarchy.\n"); |
---|
| 943 | return 1; |
---|
| 944 | } |
---|
| 945 | if(!Ntk_NetworkReadNumLatches(network1)) { |
---|
| 946 | (void) fprintf(vis_stderr, "** eqv error: No latches present in the current network. Use comb_verify.\n"); |
---|
| 947 | return 1; |
---|
| 948 | } |
---|
| 949 | fileName2 = argv[util_optind]; |
---|
| 950 | if(isBlif) { |
---|
| 951 | if((hmgr2 = Io_BlifRead(fileName2, FALSE)) == NIL(Hrc_Manager_t)) { |
---|
| 952 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
---|
| 953 | goto usage; |
---|
| 954 | } |
---|
| 955 | } |
---|
| 956 | else { |
---|
| 957 | if((fp = Cmd_FileOpen(fileName2, "r", NIL(char *), 1)) == NIL(FILE)) { |
---|
| 958 | (void) fprintf(vis_stderr, "** eqv error: File %s not found\n", fileName2); |
---|
| 959 | return 1; |
---|
| 960 | } |
---|
| 961 | hmgr2 = Io_BlifMvRead(fp, NIL(Hrc_Manager_t), FALSE, FALSE, FALSE); |
---|
| 962 | fclose(fp); |
---|
| 963 | if(hmgr2 == NIL(Hrc_Manager_t)) { |
---|
| 964 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
---|
| 965 | return 1; |
---|
| 966 | } |
---|
| 967 | } |
---|
| 968 | network2 = Ntk_HrcNodeConvertToNetwork(Hrc_ManagerReadCurrentNode(hmgr2), |
---|
| 969 | TRUE, (lsList) NULL); |
---|
| 970 | if(network2 == NIL(Ntk_Network_t)) { |
---|
| 971 | Hrc_ManagerFree(hmgr2); |
---|
| 972 | (void) fprintf(vis_stderr, "** eqv error: Error in network2.\n"); |
---|
| 973 | return 1; |
---|
| 974 | } |
---|
| 975 | if(!Ntk_NetworkReadNumLatches(network2)) { |
---|
| 976 | (void) fprintf(vis_stderr, "** eqv error: No latches present in %s. Use comb_verify.\n", fileName2); |
---|
| 977 | Hrc_ManagerFree(hmgr2); |
---|
| 978 | Ntk_NetworkFree(network2); |
---|
| 979 | return 1; |
---|
| 980 | } |
---|
| 981 | } |
---|
| 982 | else { |
---|
| 983 | fileName1 = argv[util_optind]; |
---|
| 984 | fileName2 = argv[util_optind+1]; |
---|
| 985 | if(isBlif) { |
---|
| 986 | if((hmgr1 = Io_BlifRead(fileName1, FALSE)) == NIL(Hrc_Manager_t)) { |
---|
| 987 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName1); |
---|
| 988 | return 1; |
---|
| 989 | } |
---|
| 990 | if((hmgr2 = Io_BlifRead(fileName2, FALSE)) == NIL(Hrc_Manager_t)) { |
---|
| 991 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
---|
| 992 | if(hmgr1) { |
---|
| 993 | Hrc_ManagerFree(hmgr1); |
---|
| 994 | } |
---|
| 995 | return 1; |
---|
| 996 | } |
---|
| 997 | } |
---|
| 998 | else { |
---|
| 999 | if((fp = Cmd_FileOpen(fileName1, "r", NIL(char *), 1)) == NIL(FILE)) { |
---|
| 1000 | (void) fprintf(vis_stderr, "** eqv error: File %s not found\n", fileName1); |
---|
| 1001 | return 1; |
---|
| 1002 | } |
---|
| 1003 | hmgr1 = Io_BlifMvRead(fp, NIL(Hrc_Manager_t), FALSE, FALSE, FALSE); |
---|
| 1004 | fclose(fp); |
---|
| 1005 | if(hmgr1 == NIL(Hrc_Manager_t)) { |
---|
| 1006 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName1); |
---|
| 1007 | goto usage; |
---|
| 1008 | } |
---|
| 1009 | if((fp = Cmd_FileOpen(fileName2, "r", NIL(char *), 1)) == NIL(FILE)) { |
---|
| 1010 | (void) fprintf(vis_stderr, "** eqv error: File %s not found\n", fileName2); |
---|
| 1011 | if(hmgr1) { |
---|
| 1012 | Hrc_ManagerFree(hmgr1); |
---|
| 1013 | } |
---|
| 1014 | return 1; |
---|
| 1015 | } |
---|
| 1016 | hmgr2 = Io_BlifMvRead(fp, NIL(Hrc_Manager_t), FALSE, FALSE, FALSE); |
---|
| 1017 | fclose(fp); |
---|
| 1018 | if(hmgr2 == NIL(Hrc_Manager_t)) { |
---|
| 1019 | (void) fprintf(vis_stderr, "** eqv error: Error in reading file %s\n", fileName2); |
---|
| 1020 | if(hmgr1) { |
---|
| 1021 | Hrc_ManagerFree(hmgr1); |
---|
| 1022 | } |
---|
| 1023 | return 1; |
---|
| 1024 | } |
---|
| 1025 | } |
---|
| 1026 | network1 = Ntk_HrcNodeConvertToNetwork(Hrc_ManagerReadCurrentNode(hmgr1), |
---|
| 1027 | TRUE, (lsList) NULL); |
---|
| 1028 | network2 = Ntk_HrcNodeConvertToNetwork(Hrc_ManagerReadCurrentNode(hmgr2), |
---|
| 1029 | TRUE, (lsList) NULL); |
---|
| 1030 | if((network1 == NIL(Ntk_Network_t)) || (network2 == NIL(Ntk_Network_t))) { |
---|
| 1031 | if(network1 == NIL(Ntk_Network_t)) { |
---|
| 1032 | (void) fprintf(vis_stderr, "** eqv error: Error in network1.\n"); |
---|
| 1033 | } |
---|
| 1034 | if(network2 == NIL(Ntk_Network_t)) { |
---|
| 1035 | (void) fprintf(vis_stderr, "** eqv error: Error in network2.\n"); |
---|
| 1036 | } |
---|
| 1037 | Hrc_ManagerFree(hmgr1); |
---|
| 1038 | Hrc_ManagerFree(hmgr2); |
---|
| 1039 | return 1; |
---|
| 1040 | } |
---|
| 1041 | |
---|
| 1042 | if(!Ntk_NetworkReadNumLatches(network1)) { |
---|
| 1043 | (void) fprintf(vis_stderr, "** eqv error: No latches present in %s. Use comb_verify.\n", fileName1); |
---|
| 1044 | Hrc_ManagerFree(hmgr1); |
---|
| 1045 | Ntk_NetworkFree(network1); |
---|
| 1046 | Hrc_ManagerFree(hmgr2); |
---|
| 1047 | Ntk_NetworkFree(network2); |
---|
| 1048 | return 1; |
---|
| 1049 | } |
---|
| 1050 | if(!Ntk_NetworkReadNumLatches(network2)) { |
---|
| 1051 | (void) fprintf(vis_stderr, "** eqv error: No latches present in %s. Use comb_verify.\n", fileName2); |
---|
| 1052 | Hrc_ManagerFree(hmgr1); |
---|
| 1053 | Ntk_NetworkFree(network1); |
---|
| 1054 | Hrc_ManagerFree(hmgr2); |
---|
| 1055 | Ntk_NetworkFree(network2); |
---|
| 1056 | return 1; |
---|
| 1057 | } |
---|
| 1058 | } |
---|
| 1059 | if(Ntk_NetworkReadNumPrimaryInputs(network1) != |
---|
| 1060 | Ntk_NetworkReadNumInputs(network1)) { |
---|
| 1061 | error_append("** eqv error: Pseudo inputs present in network1. Unable to do verification.\n"); |
---|
| 1062 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1063 | if(execMode) { |
---|
| 1064 | Hrc_ManagerFree(hmgr1); |
---|
| 1065 | Ntk_NetworkFree(network1); |
---|
| 1066 | } |
---|
| 1067 | Hrc_ManagerFree(hmgr2); |
---|
| 1068 | Ntk_NetworkFree(network2); |
---|
| 1069 | return 1; |
---|
| 1070 | } |
---|
| 1071 | if(Ntk_NetworkReadNumPrimaryInputs(network2) != |
---|
| 1072 | Ntk_NetworkReadNumInputs(network2)) { |
---|
| 1073 | error_append("** eqv error: Pseudo inputs present in network2. Unable to do verification.\n"); |
---|
| 1074 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1075 | if(execMode) { |
---|
| 1076 | Hrc_ManagerFree(hmgr1); |
---|
| 1077 | Ntk_NetworkFree(network1); |
---|
| 1078 | } |
---|
| 1079 | Hrc_ManagerFree(hmgr2); |
---|
| 1080 | Ntk_NetworkFree(network2); |
---|
| 1081 | return 1; |
---|
| 1082 | } |
---|
| 1083 | if(Ntk_NetworkReadNumPrimaryInputs(network1) != |
---|
| 1084 | Ntk_NetworkReadNumPrimaryInputs(network2)) { |
---|
| 1085 | error_append("** eqv error: Different number of inputs in the two networks.\n"); |
---|
| 1086 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1087 | if(execMode) { |
---|
| 1088 | Hrc_ManagerFree(hmgr1); |
---|
| 1089 | Ntk_NetworkFree(network1); |
---|
| 1090 | } |
---|
| 1091 | Hrc_ManagerFree(hmgr2); |
---|
| 1092 | Ntk_NetworkFree(network2); |
---|
| 1093 | return 1; |
---|
| 1094 | } |
---|
| 1095 | |
---|
| 1096 | /* Start the timer before calling the equivalence checker. */ |
---|
| 1097 | if (timeOutPeriod > 0){ |
---|
| 1098 | (void) signal(SIGALRM, (void(*)(int))TimeOutHandle); |
---|
| 1099 | (void) alarm(timeOutPeriod); |
---|
| 1100 | if (setjmp(timeOutEnv) > 0) { |
---|
| 1101 | (void) fprintf(vis_stderr, "Timeout occurred after %d seconds.\n", |
---|
| 1102 | timeOutPeriod); |
---|
| 1103 | alarm(0); |
---|
| 1104 | return 1; |
---|
| 1105 | } |
---|
| 1106 | } |
---|
| 1107 | |
---|
| 1108 | if(fileFlag) { |
---|
| 1109 | rootsTable = st_init_table(strcmp, st_strhash); |
---|
| 1110 | leavesTable = st_init_table(strcmp, st_strhash); |
---|
| 1111 | check = ReadRootLeafMap(inputFile, rootsTable, leavesTable); |
---|
| 1112 | fclose(inputFile); |
---|
| 1113 | if(check == 0) { |
---|
| 1114 | st_free_table(rootsTable); |
---|
| 1115 | st_free_table(leavesTable); |
---|
| 1116 | (void) fprintf(vis_stderr, "** eqv error: No data in the input file\n"); |
---|
| 1117 | alarm(0); |
---|
| 1118 | return 1; |
---|
| 1119 | } |
---|
| 1120 | switch (check) { |
---|
| 1121 | case 1 : |
---|
| 1122 | st_free_table(rootsTable); |
---|
| 1123 | outputMap = MapPrimaryOutputsByName(network1, network2); |
---|
| 1124 | if((outputMap == NIL(st_table)) || !TestLeavesAreValid(network1, |
---|
| 1125 | network2, |
---|
| 1126 | leavesTable)) { |
---|
| 1127 | st_foreach_item(leavesTable, gen, &name1, &name2) { |
---|
| 1128 | FREE(name1); |
---|
| 1129 | FREE(name2); |
---|
| 1130 | } |
---|
| 1131 | st_free_table(leavesTable); |
---|
| 1132 | if(outputMap) { |
---|
| 1133 | st_free_table(outputMap); |
---|
| 1134 | } |
---|
| 1135 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1136 | if(execMode) { |
---|
| 1137 | Hrc_ManagerFree(hmgr1); |
---|
| 1138 | Ntk_NetworkFree(network1); |
---|
| 1139 | } |
---|
| 1140 | Hrc_ManagerFree(hmgr2); |
---|
| 1141 | Ntk_NetworkFree(network2); |
---|
| 1142 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1143 | alarm(0); |
---|
| 1144 | return 1; |
---|
| 1145 | } |
---|
| 1146 | equivalent = Eqv_NetworkVerifySequentialEquivalence(network1, |
---|
| 1147 | network2, |
---|
| 1148 | NIL(st_table), |
---|
| 1149 | leavesTable, |
---|
| 1150 | partMethod, |
---|
| 1151 | useBackwardReach, |
---|
| 1152 | reordering); |
---|
| 1153 | st_foreach_item(leavesTable, gen, &name1, &name2) { |
---|
| 1154 | FREE(name1); |
---|
| 1155 | FREE(name2); |
---|
| 1156 | } |
---|
| 1157 | st_free_table(leavesTable); |
---|
| 1158 | break; |
---|
| 1159 | case 2 : |
---|
| 1160 | st_free_table(leavesTable); |
---|
| 1161 | inputMap = MapPrimaryInputsByName(network1, network2); |
---|
| 1162 | |
---|
| 1163 | if((inputMap == NIL(st_table)) || !TestRootsAreValid(network1, |
---|
| 1164 | network2, |
---|
| 1165 | rootsTable)) { |
---|
| 1166 | st_foreach_item(rootsTable, gen, &name1, &name2) { |
---|
| 1167 | FREE(name1); |
---|
| 1168 | FREE(name2); |
---|
| 1169 | } |
---|
| 1170 | st_free_table(rootsTable); |
---|
| 1171 | if(inputMap) { |
---|
| 1172 | st_free_table(inputMap); |
---|
| 1173 | } |
---|
| 1174 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1175 | if(execMode) { |
---|
| 1176 | Hrc_ManagerFree(hmgr1); |
---|
| 1177 | Ntk_NetworkFree(network1); |
---|
| 1178 | } |
---|
| 1179 | Hrc_ManagerFree(hmgr2); |
---|
| 1180 | Ntk_NetworkFree(network2); |
---|
| 1181 | alarm(0); |
---|
| 1182 | return 1; |
---|
| 1183 | } |
---|
| 1184 | equivalent = Eqv_NetworkVerifySequentialEquivalence(network1, |
---|
| 1185 | network2, |
---|
| 1186 | rootsTable, |
---|
| 1187 | NIL(st_table), |
---|
| 1188 | partMethod, |
---|
| 1189 | useBackwardReach, |
---|
| 1190 | reordering); |
---|
| 1191 | st_foreach_item(rootsTable, gen, &name1, &name2) { |
---|
| 1192 | FREE(name1); |
---|
| 1193 | FREE(name2); |
---|
| 1194 | } |
---|
| 1195 | st_free_table(rootsTable); |
---|
| 1196 | break; |
---|
| 1197 | case 3 : |
---|
| 1198 | if(TestRootsAreValid(network1, network2, rootsTable) && |
---|
| 1199 | TestLeavesAreValid(network1, network2, leavesTable)) { |
---|
| 1200 | equivalent = Eqv_NetworkVerifySequentialEquivalence(network1, |
---|
| 1201 | network2, |
---|
| 1202 | rootsTable, |
---|
| 1203 | leavesTable, |
---|
| 1204 | partMethod, |
---|
| 1205 | useBackwardReach, |
---|
| 1206 | reordering); |
---|
| 1207 | st_foreach_item(rootsTable, gen, &name1, &name2) { |
---|
| 1208 | FREE(name1); |
---|
| 1209 | FREE(name2); |
---|
| 1210 | } |
---|
| 1211 | st_free_table(rootsTable); |
---|
| 1212 | st_foreach_item(leavesTable, gen, &name1, &name2) { |
---|
| 1213 | FREE(name1); |
---|
| 1214 | FREE(name2); |
---|
| 1215 | } |
---|
| 1216 | st_free_table(leavesTable); |
---|
| 1217 | } |
---|
| 1218 | else { |
---|
| 1219 | if(execMode) { |
---|
| 1220 | Hrc_ManagerFree(hmgr1); |
---|
| 1221 | Ntk_NetworkFree(network1); |
---|
| 1222 | } |
---|
| 1223 | Hrc_ManagerFree(hmgr2); |
---|
| 1224 | Ntk_NetworkFree(network2); |
---|
| 1225 | st_foreach_item(rootsTable, gen, &name1, &name2) { |
---|
| 1226 | FREE(name1); |
---|
| 1227 | FREE(name2); |
---|
| 1228 | } |
---|
| 1229 | st_free_table(rootsTable); |
---|
| 1230 | st_foreach_item(leavesTable, gen, &name1, &name2) { |
---|
| 1231 | FREE(name1); |
---|
| 1232 | FREE(name2); |
---|
| 1233 | } |
---|
| 1234 | st_free_table(leavesTable); |
---|
| 1235 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1236 | alarm(0); |
---|
| 1237 | return 1; |
---|
| 1238 | } |
---|
| 1239 | } |
---|
| 1240 | } |
---|
| 1241 | else { |
---|
| 1242 | outputMap = MapPrimaryOutputsByName(network1, network2); |
---|
| 1243 | inputMap = MapPrimaryInputsByName(network1, network2); |
---|
| 1244 | if((inputMap == NIL(st_table)) || (outputMap == NIL(st_table))) { |
---|
| 1245 | if(inputMap) { |
---|
| 1246 | st_free_table(inputMap); |
---|
| 1247 | } |
---|
| 1248 | if(outputMap) { |
---|
| 1249 | st_free_table(outputMap); |
---|
| 1250 | } |
---|
| 1251 | if(execMode) { |
---|
| 1252 | Hrc_ManagerFree(hmgr1); |
---|
| 1253 | Ntk_NetworkFree(network1); |
---|
| 1254 | } |
---|
| 1255 | Hrc_ManagerFree(hmgr2); |
---|
| 1256 | Ntk_NetworkFree(network2); |
---|
| 1257 | (void) fprintf(vis_stderr, "%s", error_string()); |
---|
| 1258 | alarm(0); |
---|
| 1259 | return 1; /* all primary outputs do not match */ |
---|
| 1260 | } |
---|
| 1261 | st_free_table(inputMap); |
---|
| 1262 | st_free_table(outputMap); |
---|
| 1263 | equivalent = Eqv_NetworkVerifySequentialEquivalence(network1, network2, |
---|
| 1264 | NIL(st_table), |
---|
| 1265 | NIL(st_table), |
---|
| 1266 | partMethod, |
---|
| 1267 | useBackwardReach, |
---|
| 1268 | reordering); |
---|
| 1269 | } |
---|
| 1270 | if(equivalent) { |
---|
| 1271 | (void) fprintf(vis_stdout, "Networks are sequentially equivalent.\n\n"); |
---|
| 1272 | } |
---|
| 1273 | else { |
---|
| 1274 | (void) fprintf(vis_stdout, |
---|
| 1275 | "Networks are NOT sequentially equivalent.\n\n"); |
---|
| 1276 | } |
---|
| 1277 | |
---|
| 1278 | if (printBddInfo) { |
---|
| 1279 | bdd_print_stats(Ntk_NetworkReadMddManager(network2), vis_stdout); |
---|
| 1280 | } |
---|
| 1281 | |
---|
| 1282 | if(execMode) { |
---|
| 1283 | Hrc_ManagerFree(hmgr1); |
---|
| 1284 | Ntk_NetworkFree(network1); |
---|
| 1285 | } |
---|
| 1286 | Hrc_ManagerFree(hmgr2); |
---|
| 1287 | Ntk_NetworkFree(network2); |
---|
| 1288 | |
---|
| 1289 | alarm(0); |
---|
| 1290 | return 0; /* normal exit */ |
---|
| 1291 | |
---|
| 1292 | usage : |
---|
| 1293 | (void) fprintf(vis_stderr, "usage: seq_verify [-b] [-f filename] [-h] [-p partition method] [-t time] [-B]\n\t\t [-i] [-r] file1 [file2]\n"); |
---|
| 1294 | (void) fprintf(vis_stderr, " -b input files are BLIF\n"); |
---|
| 1295 | (void) fprintf(vis_stderr, " -f file variable name correspondence file\n"); |
---|
| 1296 | (void) fprintf(vis_stderr, " -h print the command usage\n"); |
---|
| 1297 | (void) fprintf(vis_stderr, " -p method partitioning method for product machine\n"); |
---|
| 1298 | (void) fprintf(vis_stderr, " -t time time out period (in seconds)\n"); |
---|
| 1299 | (void) fprintf(vis_stderr, " -B use backward image computation\n"); |
---|
| 1300 | (void) fprintf(vis_stderr, " -i print BDD statistics\n"); |
---|
| 1301 | (void) fprintf(vis_stderr, " -r enable BDD variable reordering\n"); |
---|
| 1302 | return 1; /* error exit */ |
---|
| 1303 | } |
---|
| 1304 | |
---|
| 1305 | /**Function******************************************************************** |
---|
| 1306 | |
---|
| 1307 | Synopsis [Handle function for timeout.] |
---|
| 1308 | |
---|
| 1309 | Description [This function is called when the time out occurs.] |
---|
| 1310 | |
---|
| 1311 | SideEffects [] |
---|
| 1312 | |
---|
| 1313 | ******************************************************************************/ |
---|
| 1314 | static void |
---|
| 1315 | TimeOutHandle(void) |
---|
| 1316 | { |
---|
| 1317 | longjmp(timeOutEnv, 1); |
---|
| 1318 | } |
---|