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))) { |
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464 | if(network1 == NIL(Ntk_Network_t)) { |
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465 | (void) fprintf(vis_stderr, "** eqv error: Error in network1.\n"); |
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466 | } |
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467 | if(network2 == NIL(Ntk_Network_t)) { |
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468 | (void) fprintf(vis_stderr, "** eqv error: Error in network2.\n"); |
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469 | } |
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470 | Hrc_ManagerFree(hmgr1); |
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471 | Hrc_ManagerFree(hmgr2); |
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472 | return 1; |
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473 | } |
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474 | } |
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475 | |
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476 | if(Ntk_NetworkReadNumCombInputs(network1) != |
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477 | Ntk_NetworkReadNumCombInputs(network2)) { |
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478 | error_append("** eqv error: Different number of inputs in the two networks.\n"); |
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479 | if(!fileFlag) { |
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480 | if(execMode) { |
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481 | Hrc_ManagerFree(hmgr1); |
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482 | Ntk_NetworkFree(network1); |
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483 | } |
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484 | Hrc_ManagerFree(hmgr2); |
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485 | Ntk_NetworkFree(network2); |
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486 | (void) fprintf(vis_stderr, "%s", error_string()); |
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487 | return 1; |
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488 | } |
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489 | } |
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490 | |
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491 | if(fileFlag) { |
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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 | } |
---|