1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [puresatIPRefine.c] |
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4 | |
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5 | PackageName [puresat] |
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6 | |
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7 | Synopsis [Abstraction refinement for large scale invariant checking.] |
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8 | |
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9 | Description [This file contains the functions to check invariant properties |
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10 | by the PureSAT abstraction refinement algorithm, which is entirely based on |
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11 | SAT solver, the input of which could be either CNF or AIG. It has several |
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12 | parts: |
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13 | |
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14 | * Localization-reduction base Abstraction |
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15 | * K-induction or interpolation to prove the truth of a property |
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16 | * Bounded Model Checking to find bugs |
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17 | * Incremental concretization based methods to verify abstract bugs |
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18 | * Incremental SAT solver to improve efficiency |
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19 | * UNSAT proof based method to obtain refinement |
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20 | * AROSAT to bring in only necessary latches into unsat proofs |
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21 | * Bridge abstraction to get compact coarse refinement |
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22 | * Refinement minization to guarrantee minimal refinements |
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23 | * Unsat proof-based refinement minimization to eliminate multiple candidate |
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24 | by on SAT test |
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25 | * Refinement prediction to decrease the number of refinement iterations |
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26 | * Dynamic switching to redistribute computional resources to improve |
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27 | efficiency |
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28 | |
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29 | For more information, please check the BMC'03, ICCAD'04, STTT'05 and TACAS'05 |
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30 | paper of Li et al., "A satisfiability-based appraoch to abstraction |
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31 | refinement in model checking", " Abstraction in symbolic model checking |
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32 | using satisfiability as the only decision procedure", "Efficient computation |
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33 | of small abstraction refinements", and "Efficient abstraction refinement in |
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34 | interpolation-based unbounded model checking"] |
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35 | |
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36 | Author [Bing Li] |
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37 | |
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38 | Copyright [Copyright (c) 2004 The Regents of the Univ. of Colorado. |
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39 | All rights reserved. |
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40 | |
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41 | Permission is hereby granted, without written agreement and without |
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42 | license or royalty fees, to use, copy, modify, and distribute this |
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43 | software and its documentation for any purpose, provided that the |
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44 | above copyright notice and the following two paragraphs appear in |
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45 | all copies of this software.] |
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46 | |
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47 | ******************************************************************************/ |
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48 | #include "puresatInt.h" |
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49 | |
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50 | |
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51 | /*---------------------------------------------------------------------------*/ |
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52 | /* Constant declarations */ |
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53 | /*---------------------------------------------------------------------------*/ |
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54 | |
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55 | /*---------------------------------------------------------------------------*/ |
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56 | /* Structure declarations */ |
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57 | /*---------------------------------------------------------------------------*/ |
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58 | |
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59 | /*---------------------------------------------------------------------------*/ |
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60 | /* Type declarations */ |
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61 | /*---------------------------------------------------------------------------*/ |
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62 | |
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63 | /*---------------------------------------------------------------------------*/ |
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64 | /* Variable declarations */ |
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65 | /*---------------------------------------------------------------------------*/ |
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66 | |
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67 | /*---------------------------------------------------------------------------*/ |
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68 | /* Macro declarations */ |
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69 | /*---------------------------------------------------------------------------*/ |
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70 | |
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71 | /**AutomaticStart*************************************************************/ |
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72 | |
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73 | /*---------------------------------------------------------------------------*/ |
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74 | /* Static function prototypes */ |
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75 | /*---------------------------------------------------------------------------*/ |
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76 | |
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77 | /**AutomaticEnd***************************************************************/ |
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78 | |
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79 | /*---------------------------------------------------------------------------*/ |
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80 | /* Definition of exported functions */ |
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81 | /*---------------------------------------------------------------------------*/ |
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82 | |
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83 | /**Function******************************************************************** |
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84 | |
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85 | Synopsis [Generate sufficient set from unsat proof] |
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86 | |
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87 | Description [] |
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88 | |
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89 | SideEffects [] |
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90 | |
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91 | SeeAlso [] |
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92 | |
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93 | ******************************************************************************/ |
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94 | |
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95 | #if UNSATCORE |
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96 | void PureSat_GetSufAbsFromCoreRecur(mAig_Manager_t *manager, |
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97 | satManager_t * cm, |
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98 | RTnode_t RTnode, |
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99 | st_table *ctTable, |
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100 | st_table *refineTable, |
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101 | FILE * fp) |
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102 | #else |
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103 | void PureSat_GetSufAbsFromCoreRecur(mAig_Manager_t *manager, |
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104 | satManager_t * cm, |
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105 | RTnode_t RTnode, |
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106 | st_table *ctTable, |
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107 | st_table *refineTable) |
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108 | #endif |
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109 | { |
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110 | int i,ct; |
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111 | bAigTimeFrame_t *tf = manager->timeframeWOI; |
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112 | char *name; |
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113 | bAigEdge_t v,*lp; |
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114 | st_table *table; |
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115 | st_generator *stgen; |
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116 | RTManager_t * rm = cm->rm; |
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117 | |
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118 | if(RT_flag(RTnode)&RT_VisitedMask) |
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119 | return; |
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120 | |
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121 | RT_flag(RTnode) |= RT_VisitedMask; |
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122 | /*leaf*/ |
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123 | if(RT_pivot(RTnode)==0){ |
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124 | #if DBG |
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125 | assert(RT_oriClsIdx(RTnode)==0); |
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126 | #endif |
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127 | if(RT_oriClsIdx(RTnode)!=0) |
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128 | lp = (long*)SATfirstLit(RT_oriClsIdx(RTnode)); |
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129 | else |
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130 | |
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131 | lp = RT_formula(RTnode) + cm->rm->fArray; |
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132 | for(i=0;i<RT_fSize(RTnode);i++,lp++){ |
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133 | if(RT_oriClsIdx(RTnode)!=0) |
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134 | v = SATgetNode(*lp); |
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135 | else |
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136 | v = *lp; |
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137 | if(*lp<0) |
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138 | continue; |
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139 | |
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140 | #if UNSATCORE |
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141 | v = SATnormalNode(v); |
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142 | fprintf(fp,"%d_%d ",v,SATclass(v)); |
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143 | if(SATflags(v)&DummyMask) |
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144 | fprintf(fp,"DM "); |
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145 | if(SATflags(v)&VisibleVarMask) |
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146 | fprintf(fp,"Visible "); |
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147 | else |
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148 | if(SATflags(v)&StateBitMask) |
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149 | fprintf(fp, "InvSV "); |
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150 | |
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151 | #endif |
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152 | v = SATnormalNode(v); |
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153 | if((SATflags(v)&VisibleVarMask)){ |
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154 | |
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155 | if(SATclass(v)==0){ |
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156 | if(!st_lookup(tf->idx2name,(char*)v,&name)&& |
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157 | !st_lookup(tf->MultiLatchTable,(char*)v,&table)) |
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158 | continue; |
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159 | } |
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160 | #if 1 |
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161 | /* at least 2 times to be choosen as a candidate*/ |
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162 | if(st_lookup(ctTable,(char*)v,&ct)){ |
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163 | if(ct<0) |
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164 | continue; |
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165 | if(ct>=1){ |
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166 | |
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167 | if(!st_lookup(tf->MultiLatchTable,(char*)v,&table)){ |
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168 | int retVal = st_lookup(tf->idx2name,(char*)v,&name); |
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169 | assert(retVal); |
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170 | st_insert(refineTable,(char*)name,(char*)0); |
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171 | st_insert(ctTable,(char*)v,(char*)-1); |
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172 | |
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173 | } |
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174 | else{ |
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175 | #ifdef TIMEFRAME_VERIFY_ |
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176 | fprintf(vis_stdout,"%d is in MultiLatchTable: ",v); |
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177 | #endif |
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178 | st_foreach_item(table,stgen,(char**)&name, |
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179 | NIL(char*)){ |
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180 | #ifdef TIMEFRAME_VERIFY_ |
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181 | fprintf(vis_stdout,"%s ",name); |
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182 | #endif |
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183 | st_insert(refineTable,(char*)name,(char*)0); |
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184 | } |
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185 | #ifdef TIMEFRAME_VERIFY_ |
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186 | fprintf(vis_stdout,"\n"); |
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187 | #endif |
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188 | st_insert(ctTable,(char*)v,(char*)-1); |
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189 | } |
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190 | } |
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191 | } |
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192 | else{ |
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193 | ct=1; |
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194 | st_insert(ctTable,(char*)v,(char*)(long)ct); |
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195 | } |
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196 | #else |
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197 | retVal = st_lookup(tf->idx2name,(char*)v,(char**)&name); |
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198 | assert(retVal); |
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199 | st_insert(refineTable,(char*)name,(char*)0); |
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200 | |
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201 | #endif |
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202 | }/* if(SATflags(v)&StateBitMask){*/ |
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203 | } |
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204 | #if UNSATCORE |
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205 | fprintf(fp,"0\n"); |
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206 | #endif |
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207 | } |
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208 | /*non leaf*/ |
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209 | else{ |
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210 | assert(RT_left(RTnode)!=RT_NULL&&RT_right(RTnode)!=RT_NULL); |
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211 | #if UNSATCORE |
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212 | PureSat_GetSufAbsFromCoreRecur(manager,cm,RT_left(RTnode), |
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213 | ctTable,refineTable,fp); |
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214 | PureSat_GetSufAbsFromCoreRecur(manager,cm,RT_right(RTnode), |
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215 | ctTable,refineTable,fp); |
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216 | #else |
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217 | PureSat_GetSufAbsFromCoreRecur(manager,cm,RT_left(RTnode), |
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218 | ctTable,refineTable); |
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219 | PureSat_GetSufAbsFromCoreRecur(manager,cm,RT_right(RTnode), |
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220 | ctTable,refineTable); |
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221 | #endif |
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222 | } |
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223 | return; |
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224 | } |
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225 | |
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226 | /**Function******************************************************************** |
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227 | |
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228 | Synopsis [Generate sufficient set from unsat proof by bridge abstraction] |
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229 | |
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230 | Description [] |
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231 | |
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232 | SideEffects [] |
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233 | |
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234 | SeeAlso [] |
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235 | |
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236 | ******************************************************************************/ |
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237 | |
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238 | //new pick latch |
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239 | #if UNSATCORE |
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240 | void PureSat_GetSufAbsFromCoreRecur_2side(mAig_Manager_t *manager, |
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241 | satManager_t * cm, |
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242 | RTnode_t RTnode, |
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243 | st_table *ctTable, |
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244 | st_table *refineTable, |
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245 | st_table *SufNameTable, |
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246 | FILE * fp) |
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247 | #else |
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248 | void PureSat_GetSufAbsFromCoreRecur_2side(mAig_Manager_t *manager, |
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249 | satManager_t * cm, |
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250 | RTnode_t RTnode, |
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251 | st_table *ctTable, |
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252 | st_table *refineTable, |
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253 | st_table *SufNameTable) |
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254 | #endif |
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255 | { |
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256 | int i,j,find,find1,times; |
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257 | bAigTimeFrame_t *tf = manager->timeframeWOI; |
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258 | char *name,*name1; |
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259 | bAigEdge_t v,v1,*lp,*lp1, *lp2, left,right; |
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260 | st_table *table; |
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261 | st_generator *stgen; |
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262 | RTManager_t * rm = cm->rm; |
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263 | long maxNode; |
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264 | |
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265 | if(RT_flag(RTnode)&RT_VisitedMask) |
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266 | return; |
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267 | |
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268 | RT_flag(RTnode) |= RT_VisitedMask; |
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269 | |
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270 | if(RT_pivot(RTnode)==0){ |
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271 | #if DBG |
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272 | assert(RT_oriClsIdx(RTnode)==0); |
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273 | #endif |
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274 | if(RT_oriClsIdx(RTnode)!=0) |
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275 | lp = (long*)SATfirstLit(RT_oriClsIdx(RTnode)); |
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276 | else |
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277 | |
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278 | lp = RT_formula(RTnode) + cm->rm->fArray; |
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279 | lp1 = lp; |
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280 | (cm->line)++; |
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281 | for(i=0;i<RT_fSize(RTnode);i++,lp++){ |
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282 | if(RT_oriClsIdx(RTnode)!=0) |
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283 | v = SATgetNode(*lp); |
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284 | else |
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285 | v = *lp; |
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286 | if(*lp<0) |
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287 | continue; |
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288 | #if UNSATCORE |
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289 | v = SATnormalNode(v); |
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290 | fprintf(fp,"%d_%d ",v,SATclass(v)); |
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291 | if(SATflags(v)&DummyMask) |
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292 | fprintf(fp,"DM "); |
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293 | if(SATflags(v)&VisibleVarMask) |
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294 | fprintf(fp,"Visible "); |
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295 | else |
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296 | if(SATflags(v)&StateBitMask) |
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297 | fprintf(fp, "InvSV "); |
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298 | |
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299 | #endif |
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300 | v = SATnormalNode(v); |
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301 | #if LAI |
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302 | /*mark every node in core for latch interface abs*/ |
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303 | flags(v) |= VisitedMask; |
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304 | #endif |
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305 | if(SATflags(v)&VisibleVarMask){ |
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306 | if((SATclass(v)==0)&& |
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307 | (st_lookup(tf->idx2name,(char*)v,&name)==0)&& |
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308 | (st_lookup(tf->MultiLatchTable,(char*)v,&table)==0)) |
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309 | continue; |
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310 | |
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311 | lp2 = lp1; |
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312 | left = SATnormalNode(leftChild(v)); |
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313 | right = SATnormalNode(rightChild(v)); |
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314 | //find largest node |
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315 | maxNode = -1; |
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316 | for(j=0;j<RT_fSize(RTnode);j++,lp2++){ |
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317 | if(RT_oriClsIdx(RTnode)!=0) |
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318 | v1 = SATgetNode(*lp2); |
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319 | else |
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320 | v1 = *lp2; |
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321 | if(maxNode < SATnormalNode(v1)) |
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322 | maxNode = SATnormalNode(v1); |
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323 | } |
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324 | if(maxNode == v){ |
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325 | #if DBG |
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326 | lp2 = lp1; |
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327 | for(j=0;j<RT_fSize(RTnode);j++,lp2++){ |
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328 | if(RT_oriClsIdx(RTnode)!=0) |
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329 | v1 = SATgetNode(*lp2); |
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330 | else |
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331 | v1 = *lp2; |
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332 | if(*lp2<0||SATnormalNode(v1)==v) |
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333 | continue; |
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334 | assert((SATnormalNode(v1) == SATnormalNode(leftChild(v)))|| |
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335 | SATnormalNode(v1) == SATnormalNode(rightChild(v))); |
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336 | } |
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337 | #endif |
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338 | SATflags(v) |= Visited2Mask; /*left side*/ |
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339 | } |
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340 | else{ |
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341 | #if DBG |
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342 | lp2 = lp1; |
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343 | for(j=0;j<RT_fSize(RTnode);j++,lp2++){ |
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344 | if(RT_oriClsIdx(RTnode)!=0) |
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345 | v1 = SATgetNode(*lp2); |
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346 | else |
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347 | v1 = *lp2; |
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348 | if(*lp2<0||SATnormalNode(v1)==maxNode) |
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349 | continue; |
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350 | assert((SATnormalNode(v1) == SATnormalNode(leftChild(maxNode)))|| |
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351 | (SATnormalNode(v1) == SATnormalNode(rightChild(maxNode)))); |
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352 | } |
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353 | #endif |
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354 | SATflags(v) |= Visited3Mask; /*right side*/ |
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355 | #if THROUGHPICK |
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356 | /*pick latch due to split*/ |
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357 | if(SATflags(v)&VPGVMask){ |
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358 | if(SATclass(maxNode)<=1) |
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359 | SATflags(v) |= NewMask; /*the same tf*/ |
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360 | else |
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361 | SATflags(v) |= Visited4Mask; /* larger tf*/ |
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362 | } |
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363 | #endif |
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364 | } |
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365 | |
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366 | } |
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367 | |
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368 | #if THROUGHPICK |
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369 | if((SATflags(v)&VisibleVarMask)&& |
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370 | (((SATflags(v)&Visited2Mask)&&(SATflags(v)&Visited3Mask))|| |
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371 | ((SATflags(v)&Visited4Mask)&&(SATflags(v)&NewMask)))){ |
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372 | #else |
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373 | if((SATflags(v)&VisibleVarMask)&& |
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374 | ((SATflags(v)&Visited2Mask)&&(SATflags(v)&Visited3Mask))){ |
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375 | #endif |
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376 | times = 1; |
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377 | if(!st_lookup(tf->MultiLatchTable,(char*)v,&table)){ |
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378 | int retVal = st_lookup(tf->idx2name,(char*)v,&name); |
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379 | assert(retVal); |
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380 | |
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381 | if(st_lookup(refineTable,(char*)name,×)) |
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382 | times++; |
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383 | st_insert(refineTable,(char*)name,(char*)(long)times); |
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384 | } |
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385 | |
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386 | /*for iden latches, we only add one, which is enough*/ |
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387 | else{ |
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388 | find = 0; |
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389 | find1 = 0; |
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390 | st_foreach_item(table,stgen,(char**)&name, |
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391 | NIL(char*)){ |
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392 | if(st_lookup(refineTable,name,NIL(char*))){ |
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393 | find = 1; |
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394 | break; |
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395 | } |
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396 | if(find1==0){ |
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397 | if(st_lookup(SufNameTable,name, NIL(char*))){ |
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398 | name1 = name; |
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399 | find1 = 1; |
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400 | } |
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401 | } |
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402 | } |
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403 | if(find==0){ |
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404 | times = 1; |
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405 | if(st_lookup(refineTable,(char*)name1,×)) |
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406 | times++; |
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407 | st_insert(refineTable,(char*)name1,(char*)(long)times); |
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408 | |
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409 | } |
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410 | } |
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411 | |
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412 | |
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413 | } |
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414 | } |
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415 | #if UNSATCORE |
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416 | fprintf(fp,"0\n"); |
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417 | #endif |
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418 | } |
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419 | /*non leaf*/ |
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420 | else{ |
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421 | assert(RT_left(RTnode)!=RT_NULL&&RT_right(RTnode)!=RT_NULL); |
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422 | #if UNSATCORE |
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423 | PureSat_GetSufAbsFromCoreRecur_2side(manager,cm,RT_left(RTnode), |
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424 | ctTable,refineTable,SufNameTable,fp); |
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425 | PureSat_GetSufAbsFromCoreRecur_2side(manager,cm,RT_right(RTnode), |
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426 | ctTable,refineTable,SufNameTable,fp); |
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427 | #else |
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428 | PureSat_GetSufAbsFromCoreRecur_2side(manager,cm,RT_left(RTnode), |
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429 | ctTable,refineTable,SufNameTable); |
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430 | PureSat_GetSufAbsFromCoreRecur_2side(manager,cm,RT_right(RTnode), |
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431 | ctTable,refineTable,SufNameTable); |
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432 | #endif |
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433 | } |
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434 | return; |
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435 | } |
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436 | |
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437 | |
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438 | |
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439 | /**Function******************************************************************** |
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440 | |
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441 | Synopsis [Generate sufficient set from unsat proof] |
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442 | |
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443 | Description [] |
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444 | |
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445 | SideEffects [] |
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446 | |
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447 | SeeAlso [] |
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448 | |
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449 | ******************************************************************************/ |
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450 | |
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451 | array_t * PureSat_GetSufAbsFromCore(Ntk_Network_t *network, |
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452 | satManager_t * cm, |
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453 | PureSat_Manager_t *pm, |
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454 | bAigEdge_t property, |
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455 | st_table * SufAbsNameTable) |
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456 | { |
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457 | array_t * refArray = array_alloc(char *,0); |
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458 | char *name; |
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459 | st_generator *stgen; |
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460 | Ntk_Node_t *latch; |
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461 | bAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
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462 | st_table * ctTable = st_init_table(st_numcmp,st_numhash); |
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463 | st_table * refineTable = st_init_table(strcmp,st_strhash); |
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464 | int times; |
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465 | #if UNSATCORE |
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466 | FILE * fp = fopen("unsatcore.txt","w"); |
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467 | #endif |
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468 | #if LAI |
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469 | st_table * refineTable1 = st_init_table(strcmp,st_strhash); |
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470 | |
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471 | #endif |
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472 | |
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473 | |
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474 | PureSat_CleanMask(manager,ResetVisited1234NewMask); |
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475 | #if UNSATCORE |
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476 | fprintf(fp,"p cnf %d line, # nodes:%d\n", |
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477 | cm->initNumVariables,cm->nodesArraySize); |
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478 | cm->line = 0; |
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479 | PureSat_GetSufAbsFromCoreRecur_2side(manager,cm,cm->rm->root, |
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480 | ctTable,refineTable,SufAbsNameTable,fp); |
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481 | fprintf(fp,"total lines: %d\n",cm->line); |
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482 | #else |
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483 | PureSat_GetSufAbsFromCoreRecur_2side(manager,cm,cm->rm->root, |
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484 | ctTable,refineTable,SufAbsNameTable); |
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485 | |
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486 | #endif |
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487 | PureSat_CleanMask(manager,ResetVisited1234NewMask); |
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488 | |
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489 | #if LAI |
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490 | ResetRTree(cm->rm); |
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491 | PureSat_GetLIAForNode(manager,property); |
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492 | PureSat_GetSufAbsByLIA(manager,cm,cm->rm->root, |
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493 | refineTable1); |
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494 | #endif |
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495 | |
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496 | |
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497 | st_foreach_item(refineTable,stgen,&name,×){ |
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498 | latch = Ntk_NetworkFindNodeByName(network,name); |
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499 | |
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500 | if(!st_lookup(pm->vertexTable,(char*)name,NIL(char*))&& |
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501 | st_lookup(pm->SufAbsTable, (char*)latch,NIL(char*))){ |
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502 | array_insert_last(char *,refArray,name); |
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503 | if(pm->verbosity>=2) |
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504 | fprintf(vis_stdout,"ref cand:%s %d\n",name,times); |
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505 | } |
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506 | } |
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507 | |
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508 | #if LAI |
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509 | st_foreach_item(refineTable1,stgen,(char**)&name,NIL(char*)){ |
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510 | latch = Ntk_NetworkFindNodeByName(network,name); |
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511 | if(!st_lookup(pm->vertexTable,(char*)name,NIL(char*))&& |
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512 | st_lookup(pm->CoiTable, (char*)latch,NIL(char*))){ |
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513 | if(pm->verbosity>=2) |
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514 | fprintf(vis_stdout,"from LIA ref candidate:%s\n",name); |
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515 | |
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516 | } |
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517 | } |
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518 | #endif |
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519 | |
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520 | #if UNSATCORE |
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521 | fclose(fp); |
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522 | #endif |
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523 | |
---|
524 | st_free_table(ctTable); |
---|
525 | st_free_table(refineTable); |
---|
526 | #if LAI |
---|
527 | st_free_table(refineTable1); |
---|
528 | #endif |
---|
529 | return refArray; |
---|
530 | } |
---|
531 | |
---|
532 | |
---|
533 | |
---|
534 | /**Function******************************************************************** |
---|
535 | |
---|
536 | Synopsis [Main procedure of refinement computation] |
---|
537 | |
---|
538 | Description [] |
---|
539 | |
---|
540 | SideEffects [] |
---|
541 | |
---|
542 | SeeAlso [] |
---|
543 | |
---|
544 | ******************************************************************************/ |
---|
545 | |
---|
546 | array_t *PureSat_RefineOnAbs(Ntk_Network_t *network, |
---|
547 | PureSat_Manager_t *pm, |
---|
548 | bAigEdge_t property, |
---|
549 | array_t *previousResultArray, |
---|
550 | int latchThreshHold, |
---|
551 | int * sccArray, |
---|
552 | array_t * sufArray) |
---|
553 | { |
---|
554 | array_t * tmpRef,*tmpRef1,*tmpRef2,*tmpRef3; |
---|
555 | array_t * tmpModel = array_alloc(char *,0),*tmpArray1,*tmpArray2; |
---|
556 | satManager_t *cm; |
---|
557 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
558 | st_table *table; |
---|
559 | char * name; |
---|
560 | int i,j; |
---|
561 | int NumInSecondLevel; |
---|
562 | st_generator *stgen; |
---|
563 | Ntk_Node_t *latch; |
---|
564 | double t1,t2,t3,t4; |
---|
565 | st_table * SufAbsNameTable = st_init_table(strcmp,st_strhash); |
---|
566 | st_table * junkTable; |
---|
567 | int noArosat = 1; |
---|
568 | |
---|
569 | |
---|
570 | tmpRef = array_alloc(char *,0); |
---|
571 | st_foreach_item(pm->SufAbsTable,stgen,&latch,NIL(char*)){ |
---|
572 | name = Ntk_NodeReadName(latch); |
---|
573 | if(st_lookup(pm->vertexTable,name,NIL(char *))) |
---|
574 | array_insert_last(char *,tmpModel,name); |
---|
575 | array_insert_last(char *,tmpRef,name); |
---|
576 | st_insert(SufAbsNameTable,name,(char *)0); |
---|
577 | |
---|
578 | } |
---|
579 | |
---|
580 | t1 = util_cpu_ctime(); |
---|
581 | manager->assertArray = sat_ArrayAlloc(1); |
---|
582 | sat_ArrayInsert(manager->assertArray,manager->InitState); |
---|
583 | cm = PureSat_SatManagerAlloc_WOCOI(manager,pm,property,previousResultArray); |
---|
584 | if(pm->Arosat){ |
---|
585 | cm->option->decisionHeuristic &= RESET_LC; |
---|
586 | cm->option->decisionHeuristic |= DVH_DECISION; |
---|
587 | cm->option->arosat = 1; |
---|
588 | } |
---|
589 | cm->option->coreGeneration = 1; |
---|
590 | cm->option->AbRf = 1; |
---|
591 | cm->property = property; |
---|
592 | cm->option->IP = 1; |
---|
593 | PureSat_CleanMask(manager,ResetVisibleVarMask); |
---|
594 | PuresatMarkVisibleVarWithVPGV(network,tmpRef,pm,0,pm->Length+1); |
---|
595 | array_free(tmpRef); |
---|
596 | t3 = util_cpu_ctime(); |
---|
597 | PureSatPreprocess(network,cm,pm,SufAbsNameTable,pm->Length); |
---|
598 | t4 = util_cpu_ctime(); |
---|
599 | pm->tPro += t4-t3; |
---|
600 | if(pm->verbosity>=2) |
---|
601 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
602 | (double)((t4-t3)/1000.0),pm->tPro/1000); |
---|
603 | |
---|
604 | if(cm->option->arosat){ |
---|
605 | PureSatCreateLayer(network,pm,cm,tmpModel,sufArray); |
---|
606 | cm->Length = pm->Length; |
---|
607 | AS_Main(cm); |
---|
608 | noArosat = 0; |
---|
609 | st_foreach_item(cm->layerTable,stgen,&table,NIL(char*)) |
---|
610 | st_free_table(table); |
---|
611 | st_free_table(cm->layerTable); |
---|
612 | FREE(cm->assignedArray); |
---|
613 | FREE(cm->numArray); |
---|
614 | } |
---|
615 | else |
---|
616 | sat_Main(cm); |
---|
617 | |
---|
618 | manager->NodesArray = cm->nodesArray;; |
---|
619 | assert(cm->status==SAT_UNSAT); |
---|
620 | t3 = util_cpu_ctime(); |
---|
621 | PureSatPostprocess(manager,cm,pm); |
---|
622 | PureSatProcessDummy(manager,cm,cm->rm->root); |
---|
623 | ResetRTree(cm->rm); |
---|
624 | t4 = util_cpu_ctime(); |
---|
625 | pm->tPro += t4-t3; |
---|
626 | if(pm->verbosity>=2) |
---|
627 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
628 | (double)((t4-t3)/1000.0),pm->tPro/1000); |
---|
629 | t2 = util_cpu_ctime(); |
---|
630 | pm->tCoreGen += t2 - t1; |
---|
631 | if(pm->verbosity>=2) |
---|
632 | fprintf(vis_stdout,"time for UNsat core generation:%g,total:%g\n", |
---|
633 | (double)(t2-t1)/1000.0,pm->tCoreGen/1000.0); |
---|
634 | |
---|
635 | t1 = util_cpu_ctime(); |
---|
636 | tmpRef1 = PureSat_GetSufAbsFromCore(network,cm,pm,property,SufAbsNameTable); |
---|
637 | t2 = util_cpu_ctime(); |
---|
638 | |
---|
639 | st_free_table(SufAbsNameTable); |
---|
640 | RT_Free(cm->rm); |
---|
641 | sat_ArrayFree(manager->assertArray); |
---|
642 | PureSat_SatFreeManager(cm); |
---|
643 | |
---|
644 | /*Get suff set*/ |
---|
645 | tmpRef2 = array_alloc(char *,0); |
---|
646 | tmpRef3 = array_alloc(char *,0); |
---|
647 | tmpArray1 = array_alloc(char *,0); |
---|
648 | tmpArray2 = array_alloc(char *,0); |
---|
649 | |
---|
650 | if(noArosat){ |
---|
651 | t1 = util_cpu_ctime(); |
---|
652 | if(array_n(tmpRef1)){ |
---|
653 | tmpRef = PureSatGenerateRCArray_2(network,pm,tmpRef1, |
---|
654 | &NumInSecondLevel); |
---|
655 | array_free(pm->latchArray); |
---|
656 | } |
---|
657 | |
---|
658 | } |
---|
659 | else{ |
---|
660 | if(array_n(tmpRef1)){ |
---|
661 | tmpRef = PureSatGenerateRCArray_2(network,pm,tmpRef1, |
---|
662 | &NumInSecondLevel); |
---|
663 | array_free(pm->latchArray); |
---|
664 | } |
---|
665 | else |
---|
666 | tmpRef = array_alloc(char*,0); |
---|
667 | #if NOREFMIN |
---|
668 | if(pm->verbosity>=1){ |
---|
669 | fprintf(vis_stdout,"\n sufficient refinement candidates from CA\n"); |
---|
670 | arrayForEachItem(char *,tmpRef,i,name) |
---|
671 | fprintf(vis_stdout,"%s\n",name); |
---|
672 | } |
---|
673 | PureSatAddIdenLatchToAbs(network,pm,tmpRef); |
---|
674 | array_free(tmpRef1); |
---|
675 | array_free(tmpModel); |
---|
676 | return tmpRef; |
---|
677 | #endif |
---|
678 | } |
---|
679 | |
---|
680 | |
---|
681 | /*Ref Minimization |
---|
682 | //try all the candidates*/ |
---|
683 | t1 = util_cpu_ctime(); |
---|
684 | |
---|
685 | if(pm->CoreRefMin && array_n(tmpRef)>=5){ |
---|
686 | if(pm->verbosity>=1) |
---|
687 | fprintf(vis_stdout,"Core Ref Min\n"); |
---|
688 | junkTable = st_init_table(strcmp,st_strhash); |
---|
689 | for(i=array_n(tmpRef)-1;i>=0;i--) |
---|
690 | { |
---|
691 | array_t * tmpA; |
---|
692 | name = array_fetch(char *,tmpRef,i); |
---|
693 | if(pm->verbosity>=1) |
---|
694 | fprintf(vis_stdout,"RefMin: testing %s\n",name); |
---|
695 | tmpArray2 = PureSatRemove_char(tmpRef,i); |
---|
696 | if(st_lookup(junkTable,name,NIL(char))){ |
---|
697 | array_free(tmpRef); |
---|
698 | tmpRef = tmpArray2; |
---|
699 | if(pm->verbosity>=1) |
---|
700 | fprintf(vis_stdout,"%s is junk\n",name); |
---|
701 | continue; |
---|
702 | } |
---|
703 | tmpA = array_dup(tmpModel); |
---|
704 | array_append(tmpA,tmpArray2); |
---|
705 | |
---|
706 | t3 = util_cpu_time(); |
---|
707 | tmpArray1 = array_alloc(char*,0); |
---|
708 | arrayForEachItem(char*,tmpA,j,name) |
---|
709 | if(!st_lookup(junkTable,name,NIL(char))) |
---|
710 | array_insert_last(char*,tmpArray1,name); |
---|
711 | array_free(tmpA); |
---|
712 | |
---|
713 | if(!PureSat_ConcretTest_Core(network,pm,tmpArray1,property, |
---|
714 | previousResultArray,junkTable)){ |
---|
715 | /*then the candidate can' be deleted*/ |
---|
716 | t4 = util_cpu_time(); |
---|
717 | if(pm->verbosity>=2) |
---|
718 | fprintf(vis_stdout," %g\n",(t4-t3)/1000); |
---|
719 | array_free(tmpArray2); |
---|
720 | } |
---|
721 | else /*delete it*/ |
---|
722 | { |
---|
723 | t4 = util_cpu_time(); |
---|
724 | if(pm->verbosity>=2) |
---|
725 | fprintf(vis_stdout,"time: %g\n",(t4-t3)/1000); |
---|
726 | array_free(tmpRef); |
---|
727 | tmpRef = tmpArray2; |
---|
728 | } |
---|
729 | array_free(tmpArray1); |
---|
730 | } |
---|
731 | st_free_table(junkTable); |
---|
732 | } |
---|
733 | else{ |
---|
734 | for(i=array_n(tmpRef)-1;i>=0;i--) |
---|
735 | { |
---|
736 | name = array_fetch(char *,tmpRef,i); |
---|
737 | |
---|
738 | if(pm->verbosity>=1) |
---|
739 | fprintf(vis_stdout,"RefMin: testing %s\n",name); |
---|
740 | tmpArray2 = PureSatRemove_char(tmpRef,i); |
---|
741 | tmpArray1 = array_dup(tmpModel); |
---|
742 | array_append(tmpArray1,tmpArray2); |
---|
743 | |
---|
744 | t3 = util_cpu_time(); |
---|
745 | if(!PureSat_ConcretTest(network,pm,tmpArray1,property, |
---|
746 | previousResultArray,0,0,0)){ |
---|
747 | t4 = util_cpu_time(); |
---|
748 | if(pm->verbosity>=2) |
---|
749 | fprintf(vis_stdout," %g\n",(t4-t3)/1000); |
---|
750 | array_free(tmpArray2); |
---|
751 | } |
---|
752 | else /*delete it*/ |
---|
753 | { |
---|
754 | t4 = util_cpu_time(); |
---|
755 | if(pm->verbosity>=2) |
---|
756 | fprintf(vis_stdout,"time: %g\n",(t4-t3)/1000); |
---|
757 | array_free(tmpRef); |
---|
758 | tmpRef = tmpArray2; |
---|
759 | } |
---|
760 | array_free(tmpArray1); |
---|
761 | } |
---|
762 | } |
---|
763 | |
---|
764 | |
---|
765 | t2 = util_cpu_ctime(); |
---|
766 | pm->tRefMin += t2 - t1; |
---|
767 | if(pm->verbosity>=2) |
---|
768 | fprintf(vis_stdout,"\ntime for Ref Min: %g, total:%g\n", |
---|
769 | (t2-t1)/1000,pm->tRefMin/1000); |
---|
770 | if(pm->verbosity>=1){ |
---|
771 | fprintf(vis_stdout,"\n sufficient refinement candidates from CA\n"); |
---|
772 | arrayForEachItem(char *,tmpRef,i,name) |
---|
773 | fprintf(vis_stdout,"%s\n",name); |
---|
774 | } |
---|
775 | PureSatAddIdenLatchToAbs(network,pm,tmpRef); |
---|
776 | array_free(tmpRef1); |
---|
777 | array_free(tmpModel); |
---|
778 | return tmpRef; |
---|
779 | } |
---|
780 | |
---|
781 | |
---|
782 | /**Function******************************************************************** |
---|
783 | |
---|
784 | Synopsis [Refinement procedure without refinement minimization] |
---|
785 | |
---|
786 | Description [] |
---|
787 | |
---|
788 | SideEffects [] |
---|
789 | |
---|
790 | SeeAlso [] |
---|
791 | |
---|
792 | ******************************************************************************/ |
---|
793 | |
---|
794 | |
---|
795 | array_t *PureSat_RefineOnAbs_DA(Ntk_Network_t *network, |
---|
796 | PureSat_Manager_t *pm, |
---|
797 | bAigEdge_t property, |
---|
798 | array_t *previousResultArray, |
---|
799 | int latchThreshHold, |
---|
800 | int * sccArray, |
---|
801 | array_t * sufArray) |
---|
802 | { |
---|
803 | array_t * tmpRef,*tmpRef1,*tmpRef2,*tmpRef3; //= array_alloc(char *,0); |
---|
804 | array_t * tmpModel = array_alloc(char *,0),*tmpArray1,*tmpArray2; |
---|
805 | satManager_t *cm; |
---|
806 | mAig_Manager_t * manager = Ntk_NetworkReadMAigManager(network); |
---|
807 | st_table *table; |
---|
808 | char * name; |
---|
809 | int i; |
---|
810 | int NumInSecondLevel; |
---|
811 | st_generator *stgen; |
---|
812 | Ntk_Node_t *latch; |
---|
813 | double t1,t2,t3,t4; |
---|
814 | st_table * SufAbsNameTable = st_init_table(strcmp,st_strhash); |
---|
815 | int noArosat = 1; |
---|
816 | |
---|
817 | |
---|
818 | tmpRef = array_alloc(char *,0); |
---|
819 | st_foreach_item(pm->SufAbsTable,stgen,&latch,NIL(char*)){ |
---|
820 | name = Ntk_NodeReadName(latch); |
---|
821 | if(st_lookup(pm->vertexTable,name,NIL(char *))) |
---|
822 | array_insert_last(char *,tmpModel,name); |
---|
823 | array_insert_last(char *,tmpRef,name); |
---|
824 | st_insert(SufAbsNameTable,name,(char *)0); |
---|
825 | |
---|
826 | } |
---|
827 | |
---|
828 | t1 = util_cpu_ctime(); |
---|
829 | manager->assertArray = sat_ArrayAlloc(1); |
---|
830 | sat_ArrayInsert(manager->assertArray,manager->InitState); |
---|
831 | cm = PureSat_SatManagerAlloc_WOCOI(manager,pm,property,previousResultArray); |
---|
832 | #if AROSAT |
---|
833 | cm->option->decisionHeuristic &= RESET_LC; |
---|
834 | cm->option->decisionHeuristic |= DVH_DECISION; |
---|
835 | cm->option->arosat = 1; |
---|
836 | #endif |
---|
837 | cm->option->coreGeneration = 1; |
---|
838 | cm->option->AbRf = 1; |
---|
839 | |
---|
840 | cm->option->IP = 1; |
---|
841 | cm->property = property; |
---|
842 | PureSat_CleanMask(manager,ResetVisibleVarMask); |
---|
843 | PuresatMarkVisibleVarWithVPGV(network,tmpRef,pm,0,pm->Length+1); |
---|
844 | array_free(tmpRef); |
---|
845 | t3 = util_cpu_ctime(); |
---|
846 | PureSatPreprocess(network,cm,pm,SufAbsNameTable,pm->Length); |
---|
847 | t4 = util_cpu_ctime(); |
---|
848 | pm->tPro += t4-t3; |
---|
849 | if(pm->verbosity>=2) |
---|
850 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
851 | (double)((t4-t3)/1000.0),pm->tPro/1000); |
---|
852 | #if DBG |
---|
853 | PureSatCheckCoi(manager); |
---|
854 | #endif |
---|
855 | if(cm->option->arosat){ |
---|
856 | PureSatCreateLayer(network,pm,cm,tmpModel,sufArray); |
---|
857 | cm->Length = pm->Length; |
---|
858 | AS_Main(cm); |
---|
859 | noArosat = 0; |
---|
860 | st_foreach_item(cm->layerTable,stgen,&table,NIL(char*)) |
---|
861 | st_free_table(table); |
---|
862 | st_free_table(cm->layerTable); |
---|
863 | FREE(cm->assignedArray); |
---|
864 | FREE(cm->numArray); |
---|
865 | } |
---|
866 | else |
---|
867 | sat_Main(cm); |
---|
868 | manager->NodesArray = cm->nodesArray;; |
---|
869 | assert(cm->status==SAT_UNSAT); |
---|
870 | t3 = util_cpu_ctime(); |
---|
871 | PureSatPostprocess(manager,cm,pm); |
---|
872 | PureSatProcessDummy(manager,cm,cm->rm->root); |
---|
873 | ResetRTree(cm->rm); |
---|
874 | t4 = util_cpu_ctime(); |
---|
875 | pm->tPro += t4-t3; |
---|
876 | if(pm->verbosity>=2) |
---|
877 | fprintf(vis_stdout,"process time:%g,total:%g\n", |
---|
878 | (double)((t4-t3)/1000.0),pm->tPro/1000); |
---|
879 | t2 = util_cpu_ctime(); |
---|
880 | pm->tCoreGen += t2 - t1; |
---|
881 | if(pm->verbosity>=2) |
---|
882 | fprintf(vis_stdout,"time for UNsat core generation:%g,total:%g\n", |
---|
883 | (double)(t2-t1)/1000.0,pm->tCoreGen/1000.0); |
---|
884 | #if DBG |
---|
885 | PureSat_CheckFanoutFanin(manager); |
---|
886 | #endif |
---|
887 | t1 = util_cpu_ctime(); |
---|
888 | tmpRef1 = PureSat_GetSufAbsFromCore(network,cm,pm,property,SufAbsNameTable); |
---|
889 | t2 = util_cpu_ctime(); |
---|
890 | |
---|
891 | st_free_table(SufAbsNameTable); |
---|
892 | RT_Free(cm->rm); |
---|
893 | sat_ArrayFree(manager->assertArray); |
---|
894 | PureSat_SatFreeManager(cm); |
---|
895 | |
---|
896 | /*Get suff set*/ |
---|
897 | |
---|
898 | tmpRef2 = array_alloc(char *,0); |
---|
899 | tmpRef3 = array_alloc(char *,0); |
---|
900 | tmpArray1 = array_alloc(char *,0); |
---|
901 | tmpArray2 = array_alloc(char *,0); |
---|
902 | |
---|
903 | if(noArosat){ |
---|
904 | t1 = util_cpu_ctime(); |
---|
905 | if(array_n(tmpRef1)){ |
---|
906 | tmpRef = PureSatGenerateRCArray_2(network,pm,tmpRef1, |
---|
907 | &NumInSecondLevel); |
---|
908 | |
---|
909 | array_free(pm->latchArray); |
---|
910 | } |
---|
911 | } |
---|
912 | /*if arosat*/ |
---|
913 | else{ |
---|
914 | if(array_n(tmpRef1)){ |
---|
915 | tmpRef = PureSatGenerateRCArray_2(network,pm,tmpRef1, |
---|
916 | &NumInSecondLevel); |
---|
917 | array_free(pm->latchArray); |
---|
918 | } |
---|
919 | else |
---|
920 | tmpRef = array_alloc(char*,0); |
---|
921 | |
---|
922 | if(pm->verbosity>=1){ |
---|
923 | fprintf(vis_stdout,"\n sufficient refinement candidates from CA\n"); |
---|
924 | arrayForEachItem(char *,tmpRef,i,name) |
---|
925 | fprintf(vis_stdout,"%s\n",name); |
---|
926 | } |
---|
927 | PureSatAddIdenLatchToAbs(network,pm,tmpRef); |
---|
928 | array_free(tmpRef1); |
---|
929 | array_free(tmpModel); |
---|
930 | return tmpRef; |
---|
931 | } |
---|
932 | } |
---|