1 | // ********************************************************************* |
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2 | // Copyright 2000-2004, Princeton University. All rights reserved. |
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3 | // By using this software the USER indicates that he or she has read, |
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4 | // understood and will comply with the following: |
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5 | // |
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6 | // --- Princeton University hereby grants USER nonexclusive permission |
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7 | // to use, copy and/or modify this software for internal, noncommercial, |
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8 | // research purposes only. Any distribution, including commercial sale |
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9 | // or license, of this software, copies of the software, its associated |
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10 | // documentation and/or modifications of either is strictly prohibited |
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11 | // without the prior consent of Princeton University. Title to copyright |
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12 | // to this software and its associated documentation shall at all times |
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13 | // remain with Princeton University. Appropriate copyright notice shall |
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14 | // be placed on all software copies, and a complete copy of this notice |
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15 | // shall be included in all copies of the associated documentation. |
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16 | // No right is granted to use in advertising, publicity or otherwise |
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17 | // any trademark, service mark, or the name of Princeton University. |
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18 | // |
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19 | // |
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20 | // --- This software and any associated documentation is provided "as is" |
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21 | // |
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22 | // PRINCETON UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS |
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23 | // OR IMPLIED, INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A |
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24 | // PARTICULAR PURPOSE, OR THAT USE OF THE SOFTWARE, MODIFICATIONS, OR |
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25 | // ASSOCIATED DOCUMENTATION WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS, |
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26 | // TRADEMARKS OR OTHER INTELLECTUAL PROPERTY RIGHTS OF A THIRD PARTY. |
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27 | // |
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28 | // Princeton University shall not be liable under any circumstances for |
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29 | // any direct, indirect, special, incidental, or consequential damages |
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30 | // with respect to any claim by USER or any third party on account of |
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31 | // or arising from the use, or inability to use, this software or its |
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32 | // associated documentation, even if Princeton University has been advised |
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33 | // of the possibility of those damages. |
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34 | // ******************************************************************** |
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35 | |
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36 | #include <fstream> |
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37 | #include <iostream> |
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38 | #include <vector> |
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39 | #include <queue> |
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40 | #include <set> |
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41 | #include <map> |
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42 | using namespace std; |
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43 | |
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44 | #include "zchaff_solver.h" |
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45 | #include "zchaff_clsgen.h" |
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46 | |
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47 | #ifndef SAT_Manager |
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48 | #define SAT_Manager void * |
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49 | #endif |
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50 | |
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51 | // ===================================================================== |
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52 | // Following are wrapper functions for C/C++ callers. |
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53 | // |
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54 | // ===================================================================== |
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55 | |
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56 | EXTERN SAT_Manager SAT_InitManager(void) { |
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57 | CSolver * solver = new CSolver; |
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58 | return (SAT_Manager)solver; |
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59 | } |
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60 | |
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61 | EXTERN const char * SAT_Version(SAT_Manager mng) { |
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62 | CSolver * solver = (CSolver*) mng; |
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63 | return solver->version(); |
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64 | } |
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65 | |
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66 | EXTERN void SAT_SetNumVariables(SAT_Manager mng, int n_var) { |
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67 | CSolver * solver = (CSolver*) mng; |
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68 | solver->set_variable_number(n_var); |
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69 | } |
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70 | |
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71 | EXTERN void SAT_ReleaseManager(SAT_Manager mng) { |
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72 | CSolver * solver = (CSolver*) mng; |
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73 | delete solver; |
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74 | } |
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75 | |
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76 | EXTERN int SAT_AddVariable(SAT_Manager mng) { |
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77 | CSolver * solver = (CSolver*) mng; |
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78 | int vid = solver->add_variable(); |
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79 | return vid; |
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80 | } |
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81 | |
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82 | EXTERN void SAT_EnableVarBranch(SAT_Manager mng, int vid) { |
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83 | CSolver * solver = (CSolver*) mng; |
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84 | solver->mark_var_branchable(vid); |
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85 | } |
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86 | |
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87 | EXTERN void SAT_DisableVarBranch(SAT_Manager mng, int vid) { |
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88 | CSolver * solver = (CSolver*) mng; |
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89 | solver->mark_var_unbranchable(vid); |
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90 | } |
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91 | |
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92 | EXTERN void SAT_SetTimeLimit(SAT_Manager mng, float runtime) { |
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93 | CSolver * solver = (CSolver*) mng; |
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94 | solver->set_time_limit(runtime); |
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95 | } |
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96 | |
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97 | EXTERN void SAT_SetMemLimit(SAT_Manager mng, int mem_limit) { |
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98 | CSolver * solver = (CSolver*) mng; |
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99 | solver->set_mem_limit(mem_limit); |
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100 | } |
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101 | |
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102 | EXTERN void SAT_AddClause(SAT_Manager mng, |
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103 | int * clause_lits, |
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104 | int num_lits, |
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105 | int gid = 0) { |
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106 | CSolver * solver = (CSolver*) mng; |
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107 | solver->add_orig_clause(clause_lits, num_lits, gid); |
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108 | } |
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109 | |
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110 | EXTERN void SAT_DeleteClauseGroup(SAT_Manager mng, |
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111 | int gid) { |
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112 | CSolver * solver = (CSolver*) mng; |
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113 | solver->delete_clause_group(gid); |
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114 | } |
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115 | |
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116 | EXTERN void SAT_Reset(SAT_Manager mng) { |
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117 | CSolver * solver = (CSolver*) mng; |
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118 | solver->reset(); |
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119 | } |
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120 | |
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121 | EXTERN int SAT_MergeClauseGroup(SAT_Manager mng, |
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122 | int gid1, |
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123 | int gid2) { |
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124 | CSolver * solver = (CSolver*) mng; |
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125 | int g = solver->merge_clause_group(gid1, gid2); |
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126 | return g; |
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127 | } |
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128 | |
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129 | EXTERN int SAT_AllocClauseGroupID(SAT_Manager mng) { |
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130 | CSolver * solver = (CSolver*) mng; |
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131 | int gid = solver->alloc_gid(); |
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132 | return gid; |
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133 | } |
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134 | |
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135 | EXTERN int SAT_GetGlobalGroupID(SAT_Manager mng) { |
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136 | return 0; |
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137 | } |
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138 | |
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139 | EXTERN int SAT_GetVolatileGroupID(SAT_Manager mng) { |
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140 | return -1; |
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141 | } |
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142 | |
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143 | EXTERN int SAT_Solve(SAT_Manager mng) { |
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144 | CSolver * solver = (CSolver*) mng; |
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145 | int result = solver->solve(); |
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146 | return result; |
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147 | } |
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148 | |
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149 | EXTERN void SAT_AddHookFun(SAT_Manager mng, |
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150 | void(*fun)(void *), |
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151 | int interval) { |
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152 | CSolver * solver = (CSolver*) mng; |
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153 | solver->add_hook(fun, interval); |
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154 | } |
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155 | |
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156 | EXTERN void SAT_MakeDecision(SAT_Manager mng, |
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157 | int vid, |
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158 | int sign) { |
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159 | CSolver * solver = (CSolver*) mng; |
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160 | solver->make_decision(vid+vid+sign); |
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161 | } |
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162 | |
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163 | EXTERN void SAT_SetRandomness(SAT_Manager mng, |
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164 | int n) { |
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165 | CSolver * solver = (CSolver*) mng; |
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166 | solver->set_randomness(n); |
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167 | } |
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168 | |
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169 | EXTERN void SAT_SetRandSeed(SAT_Manager mng, |
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170 | int seed) { |
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171 | CSolver * solver = (CSolver*) mng; |
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172 | solver->set_random_seed(seed); |
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173 | } |
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174 | |
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175 | EXTERN int SAT_GetVarAsgnment(SAT_Manager mng, |
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176 | int v_idx) { |
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177 | CSolver * solver = (CSolver*) mng; |
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178 | assert(v_idx > 0 && v_idx < (int) solver->variables()->size()); |
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179 | int v = solver->variable(v_idx).value(); |
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180 | return v; |
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181 | } |
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182 | |
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183 | EXTERN int SAT_EstimateMemUsage(SAT_Manager mng) { |
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184 | CSolver * solver = (CSolver*) mng; |
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185 | int usage = solver->estimate_mem_usage(); |
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186 | return usage; |
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187 | } |
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188 | |
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189 | EXTERN float SAT_GetElapsedCPUTime(SAT_Manager mng) { |
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190 | CSolver * solver = (CSolver*) mng; |
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191 | float time = solver->elapsed_cpu_time(); |
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192 | return time; |
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193 | } |
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194 | |
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195 | EXTERN float SAT_GetCurrentCPUTime(SAT_Manager mng) { |
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196 | float time = get_cpu_time() / 1000.0; |
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197 | return time; |
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198 | } |
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199 | |
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200 | EXTERN float SAT_GetCPUTime(SAT_Manager mng) { |
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201 | CSolver * solver = (CSolver*) mng; |
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202 | float time = solver->cpu_run_time(); |
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203 | return time; |
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204 | } |
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205 | |
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206 | EXTERN int SAT_NumLiterals(SAT_Manager mng) { |
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207 | CSolver * solver = (CSolver*) mng; |
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208 | int n = solver->num_literals(); |
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209 | return n; |
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210 | } |
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211 | |
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212 | EXTERN int SAT_NumClauses(SAT_Manager mng) { |
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213 | CSolver * solver = (CSolver*) mng; |
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214 | int n = solver->num_clauses(); |
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215 | return n; |
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216 | } |
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217 | |
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218 | EXTERN int SAT_NumVariables(SAT_Manager mng) { |
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219 | CSolver * solver = (CSolver*) mng; |
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220 | int n = solver->num_variables(); |
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221 | return n; |
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222 | } |
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223 | |
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224 | EXTERN int SAT_InitNumLiterals(SAT_Manager mng) { |
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225 | CSolver * solver = (CSolver*) mng; |
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226 | int n = solver->init_num_literals(); |
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227 | return n; |
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228 | } |
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229 | |
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230 | EXTERN int SAT_InitNumClauses(SAT_Manager mng) { |
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231 | CSolver * solver = (CSolver*) mng; |
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232 | int n = solver->init_num_clauses(); |
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233 | return n; |
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234 | } |
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235 | |
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236 | EXTERN long64 SAT_NumAddedLiterals(SAT_Manager mng) { |
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237 | CSolver * solver = (CSolver*) mng; |
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238 | long64 n = solver->num_added_literals(); |
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239 | return n; |
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240 | } |
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241 | |
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242 | EXTERN int SAT_NumAddedClauses(SAT_Manager mng) { |
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243 | CSolver * solver = (CSolver*) mng; |
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244 | int n = solver->num_added_clauses(); |
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245 | return n; |
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246 | } |
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247 | |
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248 | EXTERN int SAT_NumDeletedClauses(SAT_Manager mng) { |
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249 | CSolver * solver = (CSolver*) mng; |
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250 | int n = solver->num_deleted_clauses(); |
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251 | return n; |
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252 | } |
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253 | |
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254 | EXTERN int SAT_NumDelOrigCls(SAT_Manager mng) { |
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255 | CSolver * solver = (CSolver*) mng; |
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256 | int n = solver->num_del_orig_cls(); |
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257 | return n; |
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258 | } |
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259 | |
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260 | EXTERN long64 SAT_NumDeletedLiterals(SAT_Manager mng) { |
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261 | CSolver * solver = (CSolver*) mng; |
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262 | long64 n = solver->num_deleted_literals(); |
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263 | return n; |
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264 | } |
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265 | |
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266 | EXTERN int SAT_NumDecisions(SAT_Manager mng) { |
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267 | CSolver * solver = (CSolver*) mng; |
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268 | int n = solver->num_decisions(); |
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269 | return n; |
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270 | } |
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271 | |
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272 | EXTERN int SAT_NumDecisionsStackConf(SAT_Manager mng) { |
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273 | CSolver * solver = (CSolver*) mng; |
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274 | int n = solver->num_decisions_stack_conf(); |
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275 | return n; |
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276 | } |
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277 | |
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278 | EXTERN int SAT_NumDecisionsVsids(SAT_Manager mng) { |
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279 | CSolver * solver = (CSolver*) mng; |
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280 | int n = solver->num_decisions_vsids(); |
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281 | return n; |
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282 | } |
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283 | |
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284 | EXTERN int SAT_NumDecisionsShrinking(SAT_Manager mng) { |
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285 | CSolver * solver = (CSolver*) mng; |
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286 | int n = solver->num_decisions_shrinking(); |
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287 | return n; |
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288 | } |
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289 | |
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290 | EXTERN int SAT_NumShrinkings(SAT_Manager mng) { |
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291 | CSolver * solver = (CSolver*) mng; |
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292 | int n = solver->num_shrinkings(); |
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293 | return n; |
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294 | } |
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295 | |
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296 | EXTERN int SAT_Random_Seed(SAT_Manager mng) { |
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297 | CSolver * solver = (CSolver*) mng; |
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298 | int n = solver->random_seed(); |
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299 | return n; |
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300 | } |
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301 | |
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302 | EXTERN long64 SAT_NumImplications(SAT_Manager mng) { |
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303 | CSolver * solver = (CSolver*) mng; |
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304 | long64 n = solver->num_implications(); |
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305 | return n; |
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306 | } |
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307 | |
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308 | EXTERN int SAT_MaxDLevel(SAT_Manager mng) { |
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309 | CSolver * solver = (CSolver*) mng; |
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310 | int n = solver->max_dlevel(); |
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311 | return n; |
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312 | } |
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313 | |
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314 | EXTERN float SAT_AverageBubbleMove(SAT_Manager mng) { |
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315 | CSolver * solver = (CSolver*) mng; |
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316 | float n = ((float) solver->total_bubble_move()) / |
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317 | (solver->num_added_literals() - solver->init_num_literals()); |
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318 | return n; |
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319 | } |
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320 | |
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321 | EXTERN int SAT_GetFirstClause(SAT_Manager mng) { |
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322 | CSolver * solver = (CSolver*) mng; |
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323 | for (unsigned i = 0; i < solver->clauses()->size(); ++i) |
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324 | if (solver->clause(i).status() != DELETED_CL) { |
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325 | return i; |
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326 | } |
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327 | return -1; |
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328 | } |
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329 | |
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330 | EXTERN int SAT_GetClauseType(SAT_Manager mng, int cl_idx) { |
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331 | CSolver * solver = (CSolver*) mng; |
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332 | int type = solver->clause(cl_idx).status(); |
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333 | return type; |
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334 | } |
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335 | |
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336 | EXTERN int SAT_IsSetClauseGroupID(SAT_Manager mng, int cl_idx, int id) { |
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337 | CSolver * solver = (CSolver*) mng; |
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338 | int r = solver->clause(cl_idx).gid(id); |
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339 | return r; |
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340 | } |
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341 | |
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342 | EXTERN void SAT_ClearClauseGroupID(SAT_Manager mng, int cl_idx, int id) { |
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343 | CSolver * solver = (CSolver*) mng; |
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344 | solver->clause(cl_idx).clear_gid(id); |
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345 | } |
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346 | |
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347 | EXTERN void SAT_SetClauseGroupID(SAT_Manager mng, int cl_idx, int id) { |
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348 | CSolver * solver = (CSolver*) mng; |
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349 | solver->clause(cl_idx).set_gid(id); |
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350 | } |
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351 | |
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352 | EXTERN int SAT_GetNextClause(SAT_Manager mng, int cl_idx) { |
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353 | CSolver * solver = (CSolver*) mng; |
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354 | for (unsigned i = cl_idx + 1; i < solver->clauses()->size(); ++i) |
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355 | if (solver->clause(i).status() != DELETED_CL) { |
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356 | return i; |
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357 | } |
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358 | return -1; |
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359 | } |
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360 | |
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361 | EXTERN int SAT_GetClauseNumLits(SAT_Manager mng, int cl_idx) { |
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362 | CSolver * solver = (CSolver*) mng; |
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363 | int n = solver->clause(cl_idx).num_lits(); |
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364 | return n; |
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365 | } |
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366 | |
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367 | EXTERN void SAT_GetClauseLits(SAT_Manager mng, int cl_idx, int * lits) { |
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368 | CSolver * solver = (CSolver*) mng; |
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369 | for (unsigned i = 0; i < solver->clause(cl_idx).num_lits(); ++i) { |
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370 | lits[i] = solver->clause(cl_idx).literal(i).s_var(); |
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371 | } |
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372 | } |
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373 | |
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374 | EXTERN void SAT_EnableConfClsDeletion(SAT_Manager mng) { |
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375 | CSolver * solver = (CSolver*) mng; |
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376 | solver->enable_cls_deletion(true); |
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377 | } |
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378 | |
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379 | EXTERN void SAT_DisableConfClsDeletion(SAT_Manager mng) { |
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380 | CSolver * solver = (CSolver*) mng; |
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381 | solver->enable_cls_deletion(false); |
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382 | } |
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383 | |
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384 | EXTERN void SAT_CleanUpDatabase(SAT_Manager mng) { |
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385 | CSolver * solver = (CSolver*) mng; |
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386 | solver->clean_up_dbase(); |
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387 | } |
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388 | |
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389 | EXTERN void SAT_GenClsAnd2(SAT_Manager mng, |
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390 | int a, |
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391 | int b, |
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392 | int o, |
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393 | int gid = 0) { |
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394 | CSolver * solver = (CSolver*) mng; |
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395 | CClause_Gen cls_gen; |
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396 | cls_gen.and2(*solver, a, b, o, gid); |
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397 | } |
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398 | |
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399 | EXTERN void SAT_GenClsAndN(SAT_Manager mng, |
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400 | int * inputs, |
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401 | int num_inputs, |
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402 | int o, |
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403 | int gid = 0) { |
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404 | CSolver * solver = (CSolver*) mng; |
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405 | CClause_Gen cls_gen; |
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406 | cls_gen.and_n(*solver, inputs, num_inputs, o, gid); |
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407 | } |
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408 | |
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409 | EXTERN void SAT_GenClsOr2(SAT_Manager mng, |
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410 | int a, |
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411 | int b, |
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412 | int o, |
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413 | int gid = 0) { |
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414 | CSolver * solver = (CSolver*) mng; |
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415 | CClause_Gen cls_gen; |
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416 | cls_gen.or2(*solver, a, b, o, gid); |
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417 | } |
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418 | |
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419 | EXTERN void SAT_GenClsOrN(SAT_Manager mng, |
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420 | int * inputs, |
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421 | int num_inputs, |
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422 | int o, |
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423 | int gid = 0) { |
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424 | CSolver * solver = (CSolver*) mng; |
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425 | CClause_Gen cls_gen; |
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426 | cls_gen.or_n(*solver, inputs, num_inputs, o, gid); |
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427 | } |
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428 | |
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429 | EXTERN void SAT_GenClsNand2(SAT_Manager mng, |
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430 | int a, |
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431 | int b, |
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432 | int o, |
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433 | int gid = 0) { |
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434 | CSolver * solver = (CSolver*) mng; |
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435 | CClause_Gen cls_gen; |
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436 | cls_gen.nand2(*solver, a, b, o, gid); |
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437 | } |
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438 | |
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439 | |
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440 | EXTERN void SAT_GenClsNandN(SAT_Manager mng, |
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441 | int * inputs, |
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442 | int num_inputs, |
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443 | int o, |
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444 | int gid = 0) { |
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445 | CSolver * solver = (CSolver*) mng; |
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446 | CClause_Gen cls_gen; |
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447 | cls_gen.nand_n(*solver, inputs, num_inputs, o, gid); |
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448 | } |
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449 | |
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450 | |
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451 | EXTERN void SAT_GenClsNor2(SAT_Manager mng, |
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452 | int a, |
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453 | int b, |
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454 | int o, |
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455 | int gid = 0) { |
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456 | CSolver * solver = (CSolver*) mng; |
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457 | CClause_Gen cls_gen; |
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458 | cls_gen.nor2(*solver, a, b, o, gid); |
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459 | } |
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460 | |
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461 | |
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462 | EXTERN void SAT_GenClsNorN(SAT_Manager mng, |
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463 | int * inputs, |
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464 | int num_inputs, |
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465 | int o, |
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466 | int gid = 0) { |
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467 | CSolver * solver = (CSolver*) mng; |
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468 | CClause_Gen cls_gen; |
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469 | cls_gen.nor_n(*solver, inputs, num_inputs, o, gid); |
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470 | } |
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471 | |
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472 | EXTERN void SAT_GenClsXor(SAT_Manager mng, |
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473 | int a, |
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474 | int b, |
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475 | int o, |
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476 | int gid = 0) { |
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477 | CSolver * solver = (CSolver*) mng; |
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478 | CClause_Gen cls_gen; |
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479 | cls_gen.xor2(*solver, a, b, o, gid); |
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480 | } |
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481 | |
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482 | EXTERN void SAT_GenClsNot(SAT_Manager mng, |
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483 | int a, |
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484 | int o, |
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485 | int gid = 0) { |
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486 | CSolver * solver = (CSolver*) mng; |
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487 | CClause_Gen cls_gen; |
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488 | cls_gen.not1(*solver, a, o, gid); |
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489 | } |
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