1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [absUtil.c] |
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4 | |
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5 | PackageName [abs] |
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6 | |
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7 | Synopsis [Some miscelaneous functions for non-critical tasks such as printing |
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8 | information, sanity checks, etc] |
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9 | |
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10 | Author [Abelardo Pardo <abel@vlsi.colorado.edu>] |
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11 | |
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12 | Copyright [This file was created at the University of Colorado at |
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13 | Boulder. The University of Colorado at Boulder makes no warranty |
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14 | about the suitability of this software for any purpose. It is |
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15 | presented on an AS IS basis.] |
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16 | |
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17 | ******************************************************************************/ |
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18 | |
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19 | #include <time.h> |
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20 | #include "absInt.h" |
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21 | |
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22 | static char rcsid[] UNUSED = "$Id: absUtil.c,v 1.17 2005/04/16 04:22:21 fabio Exp $"; |
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23 | |
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24 | /*---------------------------------------------------------------------------*/ |
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25 | /* Macro declarations */ |
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26 | /*---------------------------------------------------------------------------*/ |
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27 | |
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28 | |
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29 | /**AutomaticStart*************************************************************/ |
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30 | |
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31 | /*---------------------------------------------------------------------------*/ |
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32 | /* Static function prototypes */ |
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33 | /*---------------------------------------------------------------------------*/ |
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34 | |
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35 | static void VertexPrintDotRecur(FILE *fp, AbsVertexInfo_t *vertex, st_table *visited); |
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36 | static char * VertexTypeToString(AbsVertexInfo_t *vertex); |
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37 | |
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38 | /**AutomaticEnd***************************************************************/ |
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39 | |
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40 | |
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41 | /*---------------------------------------------------------------------------*/ |
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42 | /* Definition of exported functions */ |
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43 | /*---------------------------------------------------------------------------*/ |
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44 | |
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45 | /*---------------------------------------------------------------------------*/ |
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46 | /* Definition of internal functions */ |
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47 | /*---------------------------------------------------------------------------*/ |
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48 | |
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49 | /**Function******************************************************************** |
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50 | |
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51 | Synopsis [Print recursively the sub-graph from a given vertex in DOT format.] |
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52 | |
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53 | Description [The function receives a pointer to a vertex and a file |
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54 | descriptor. It prints the sub-graph starting with the given vertex in DOT |
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55 | format. The DOT format can be found in the graph visualization package in <a |
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56 | href="http://www.research.att.com/orgs/ssr/book/reuse"> |
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57 | http://www.research.att.com/orgs/ssr/book/reuse</a>.] |
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58 | |
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59 | SideEffects [] |
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60 | |
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61 | SeeAlso [AbsVertexInfo] |
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62 | |
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63 | ******************************************************************************/ |
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64 | void |
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65 | AbsVertexPrintDot( |
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66 | FILE *fp, |
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67 | array_t *vertexArray) |
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68 | { |
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69 | AbsVertexInfo_t *vertexPtr; |
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70 | st_table *visited; |
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71 | struct tm *nowStructPtr; |
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72 | char *nowTxt; |
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73 | time_t now; |
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74 | int i; |
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75 | |
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76 | /* Initialize some variables */ |
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77 | now = time(0); |
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78 | nowStructPtr = localtime(&now); |
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79 | nowTxt = asctime(nowStructPtr); |
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80 | visited = st_init_table(st_ptrcmp, st_ptrhash); |
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81 | |
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82 | /* |
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83 | * Write out the header for the output file. |
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84 | */ |
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85 | (void) fprintf(fp, "# %s\n", Vm_VisReadVersion()); |
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86 | (void) fprintf(fp, "# generated: %s", nowTxt); |
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87 | (void) fprintf(fp, "#\n"); |
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88 | |
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89 | (void) fprintf(fp, "digraph \"Formula\" {\n rotate=90;\n"); |
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90 | (void) fprintf(fp, " margin=0.5;\n label=\"Formula\";\n"); |
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91 | (void) fprintf(fp, " size=\"10,7.5\";\n ratio=\"fill\";\n"); |
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92 | |
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93 | arrayForEachItem(AbsVertexInfo_t *, vertexArray, i, vertexPtr) { |
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94 | VertexPrintDotRecur(fp, vertexPtr, visited); |
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95 | } |
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96 | |
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97 | (void) fprintf(fp, "}\n"); |
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98 | st_free_table(visited); |
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99 | |
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100 | return; |
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101 | } /* End of AbsVertexPrintDot */ |
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102 | |
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103 | |
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104 | /**Function******************************************************************** |
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105 | |
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106 | Synopsis [Function to print the information stored in a vertex.] |
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107 | |
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108 | Description [The function receives a pointer to a vertex, a table with |
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109 | vertices already visited and a variable to enable recursion. If the vertex is |
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110 | already in the table, it is not printed. Otherwise, its contents is printed, |
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111 | and if recur is true, the sub-formulas are recursively printed.] |
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112 | |
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113 | SideEffects [] |
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114 | |
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115 | SeeAlso [AbsVertexInfo] |
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116 | |
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117 | ******************************************************************************/ |
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118 | void |
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119 | AbsVertexPrint( |
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120 | AbsVertexInfo_t *vertexPtr, |
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121 | st_table *visitedSF, |
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122 | boolean recur, |
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123 | long verbosity) |
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124 | { |
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125 | st_table *newVisitedSF; |
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126 | |
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127 | newVisitedSF = NIL(st_table); |
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128 | if (recur && visitedSF == NIL(st_table)) { |
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129 | newVisitedSF = st_init_table(st_ptrcmp, st_ptrhash); |
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130 | (void) fprintf(vis_stdout, "ABS:----------------------------------"); |
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131 | (void) fprintf(vis_stdout, "-------------------\n"); |
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132 | } |
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133 | else { |
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134 | newVisitedSF = visitedSF; |
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135 | } |
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136 | |
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137 | if (newVisitedSF != NIL(st_table)) { |
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138 | if (st_is_member(newVisitedSF, (char *)vertexPtr)) { |
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139 | return; |
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140 | } |
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141 | st_insert(newVisitedSF, (char *)vertexPtr, NIL(char)); |
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142 | } |
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143 | |
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144 | /* Print the type of vertex */ |
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145 | (void) fprintf(vis_stdout, "ABS: Vertex(%3d)-(", |
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146 | AbsVertexReadId(vertexPtr)); |
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147 | switch(AbsVertexReadType(vertexPtr)) { |
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148 | case identifier_c: |
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149 | (void) fprintf(vis_stdout, "Identifier "); |
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150 | break; |
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151 | case false_c: |
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152 | (void) fprintf(vis_stdout, " FALSE "); |
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153 | break; |
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154 | case variable_c: |
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155 | (void) fprintf(vis_stdout, " Variable "); |
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156 | break; |
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157 | case fixedPoint_c: |
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158 | (void) fprintf(vis_stdout, "Fixed Point"); |
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159 | break; |
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160 | case preImage_c: |
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161 | (void) fprintf(vis_stdout, " PreImage "); |
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162 | break; |
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163 | case not_c: |
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164 | (void) fprintf(vis_stdout, " Not "); |
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165 | break; |
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166 | case and_c: |
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167 | (void) fprintf(vis_stdout, " and "); |
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168 | break; |
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169 | case xor_c: |
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170 | (void) fprintf(vis_stdout, " xor "); |
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171 | break; |
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172 | case xnor_c: |
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173 | (void) fprintf(vis_stdout, " xnor "); |
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174 | break; |
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175 | default: fail("Encountered unknown type of Vertex\n"); |
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176 | } |
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177 | (void) fprintf(vis_stdout, ") (%p)-> ", (void *) vertexPtr); |
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178 | |
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179 | /* Print pointer to kids */ |
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180 | if (AbsVertexReadLeftKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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181 | (void) fprintf(vis_stdout, "(%p)/", |
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182 | (void *) AbsVertexReadLeftKid(vertexPtr)); |
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183 | } |
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184 | else { |
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185 | (void) fprintf(vis_stdout, "(---NIL---)/"); |
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186 | } |
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187 | if (AbsVertexReadRightKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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188 | (void) fprintf(vis_stdout, "(%p)\n", |
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189 | (void *) AbsVertexReadRightKid(vertexPtr)); |
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190 | } |
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191 | else { |
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192 | (void) fprintf(vis_stdout, "(---NIL---)\n"); |
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193 | } |
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194 | |
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195 | /* Print Sat */ |
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196 | if (AbsVertexReadType(vertexPtr) != variable_c) { |
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197 | (void) fprintf(vis_stdout, "ABS: Sat -> "); |
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198 | if (AbsVertexReadSat(vertexPtr) != NIL(mdd_t)) { |
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199 | (void) fprintf(vis_stdout, "%d Nodes\n", |
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200 | mdd_size(AbsVertexReadSat(vertexPtr))); |
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201 | if (verbosity & ABS_VB_SCUBE) { |
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202 | AbsBddPrintMinterms(AbsVertexReadSat(vertexPtr)); |
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203 | } |
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204 | } |
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205 | else { |
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206 | (void) fprintf(vis_stdout, "NIL\n"); |
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207 | } |
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208 | } |
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209 | |
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210 | /* Print refs, served, polarity, depth, localApprox and globalApprox */ |
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211 | (void) fprintf(vis_stdout, |
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212 | "ABS: Rfs Svd Plrty Dpth LclApp GlblApp Cnt Ref\n"); |
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213 | (void) fprintf(vis_stdout, "ABS: %3d %3d %3d %6d %4d %6d %5d %3d\n", |
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214 | AbsVertexReadRefs(vertexPtr), AbsVertexReadServed(vertexPtr), |
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215 | AbsVertexReadPolarity(vertexPtr), |
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216 | AbsVertexReadDepth(vertexPtr), |
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217 | AbsVertexReadLocalApprox(vertexPtr), |
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218 | AbsVertexReadGlobalApprox(vertexPtr), |
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219 | AbsVertexReadConstant(vertexPtr), |
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220 | AbsVertexReadTrueRefine(vertexPtr)); |
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221 | |
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222 | /* Print the parents */ |
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223 | (void) fprintf(vis_stdout, "ABS: Parents-> "); |
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224 | if (lsLength(AbsVertexReadParent(vertexPtr)) != 0) { |
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225 | AbsVertexInfo_t *parent; |
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226 | lsList parentList; |
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227 | lsGen listGen; |
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228 | |
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229 | parentList = AbsVertexReadParent(vertexPtr); |
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230 | lsForEachItem(parentList, listGen, parent) { |
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231 | if (parent == NIL(AbsVertexInfo_t)) { |
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232 | (void) fprintf(vis_stdout, "(---NIL---) "); |
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233 | } |
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234 | else { |
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235 | (void) fprintf(vis_stdout, "%p ", (void *) parent); |
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236 | } |
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237 | } |
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238 | (void) fprintf(vis_stdout, "\n"); |
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239 | } |
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240 | else { |
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241 | (void) fprintf(vis_stdout, "---NIL--\n"); |
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242 | } |
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243 | |
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244 | /* Print Sub-systems*/ |
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245 | if (AbsVertexReadType(vertexPtr) == preImage_c) { |
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246 | (void) fprintf(vis_stdout, "ABS: Solutions-> "); |
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247 | if (AbsVertexReadSolutions(vertexPtr) != NIL(st_table)) { |
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248 | AbsEvalCacheEntry_t *entry; |
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249 | st_generator *stgen; |
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250 | array_t *units; |
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251 | bdd_node *key; |
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252 | |
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253 | units = array_alloc(mdd_t *, 0); |
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254 | st_foreach_item(AbsVertexReadSolutions(vertexPtr), stgen, &key, &entry) { |
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255 | array_insert_last(mdd_t *, units, |
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256 | AbsEvalCacheEntryReadResult(entry)); |
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257 | } |
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258 | (void) fprintf(vis_stdout, "%d elements with size %ld Nodes.\n", |
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259 | array_n(units), mdd_size_multiple(units)); |
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260 | array_free(units); |
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261 | } |
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262 | else { |
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263 | (void) fprintf(vis_stdout, "---NIL--\n"); |
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264 | } |
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265 | } |
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266 | |
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267 | /* Print the localId */ |
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268 | if (AbsVertexReadType(vertexPtr) == variable_c) { |
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269 | (void) fprintf(vis_stdout, "ABS: Variable Id-> %d\n", |
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270 | AbsVertexReadVarId(vertexPtr)); |
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271 | } |
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272 | |
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273 | if (AbsVertexReadType(vertexPtr) == fixedPoint_c) { |
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274 | /* Print the variable vertex */ |
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275 | (void) fprintf(vis_stdout, "ABS: Variable Vertex-> %p\n", |
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276 | (void *) AbsVertexReadFpVar(vertexPtr)); |
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277 | |
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278 | /* Print the rings */ |
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279 | (void) fprintf(vis_stdout, "ABS: Rings->"); |
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280 | if (AbsVertexReadRings(vertexPtr) != NIL(array_t)) { |
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281 | (void) fprintf(vis_stdout, "%d elements with size %ld Nodes.\n", |
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282 | array_n(AbsVertexReadRings(vertexPtr)), |
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283 | mdd_size_multiple(AbsVertexReadRings(vertexPtr))); |
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284 | } |
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285 | else { |
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286 | (void) fprintf(vis_stdout, " NIL\n"); |
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287 | } |
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288 | /* Print the approximation flags */ |
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289 | (void) fprintf(vis_stdout, "ABS: ApproxRings-> "); |
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290 | if (AbsVertexReadRingApprox(vertexPtr) != NIL(array_t)) { |
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291 | int unit; |
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292 | int i; |
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293 | |
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294 | arrayForEachItem(int, AbsVertexReadRingApprox(vertexPtr), i, unit) { |
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295 | (void) fprintf(vis_stdout, "%d,", unit); |
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296 | } |
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297 | (void) fprintf(vis_stdout, "\n"); |
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298 | } |
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299 | else { |
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300 | (void) fprintf(vis_stdout, " NIL\n"); |
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301 | } |
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302 | |
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303 | /* Print the sub-approximation flags */ |
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304 | (void) fprintf(vis_stdout, "ABS: SubApproxRings-> "); |
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305 | if (AbsVertexReadSubApprox(vertexPtr) != NIL(array_t)) { |
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306 | int unit; |
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307 | int i; |
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308 | |
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309 | arrayForEachItem(int, AbsVertexReadSubApprox(vertexPtr), i, unit) { |
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310 | (void) fprintf(vis_stdout, "%d,", unit); |
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311 | } |
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312 | (void) fprintf(vis_stdout, "\n"); |
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313 | } |
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314 | else { |
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315 | (void) fprintf(vis_stdout, " NIL\n"); |
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316 | } |
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317 | } |
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318 | |
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319 | /* Print name and value of the identifier */ |
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320 | if (AbsVertexReadType(vertexPtr) == identifier_c) { |
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321 | (void) fprintf(vis_stdout, "ABS: Name/Value-> %s/%s\n", |
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322 | AbsVertexReadName(vertexPtr), AbsVertexReadValue(vertexPtr)); |
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323 | } |
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324 | |
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325 | (void) fprintf(vis_stdout, "ABS:----------------------------------"); |
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326 | (void) fprintf(vis_stdout, "-------------------\n"); |
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327 | |
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328 | /* Print the sub-formulas recursively if enabled */ |
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329 | if (recur) { |
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330 | if (AbsVertexReadLeftKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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331 | AbsVertexPrint(AbsVertexReadLeftKid(vertexPtr), newVisitedSF, recur, |
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332 | verbosity); |
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333 | } |
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334 | |
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335 | if (AbsVertexReadRightKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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336 | AbsVertexPrint(AbsVertexReadRightKid(vertexPtr), newVisitedSF, recur, |
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337 | verbosity); |
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338 | } |
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339 | } |
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340 | |
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341 | /* Clean up */ |
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342 | if (visitedSF != newVisitedSF) { |
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343 | st_free_table(newVisitedSF); |
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344 | } |
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345 | |
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346 | return; |
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347 | } /* End of AbsVertexPrint */ |
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348 | |
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349 | /**Function******************************************************************** |
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350 | |
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351 | Synopsis [Function to print the cubes of a BDD.] |
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352 | |
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353 | SideEffects [] |
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354 | |
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355 | ******************************************************************************/ |
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356 | void |
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357 | AbsBddPrintMinterms( |
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358 | mdd_t *function) |
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359 | { |
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360 | bdd_gen *gen; |
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361 | array_t *cube; |
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362 | int i; |
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363 | int literal; |
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364 | |
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365 | if (mdd_is_tautology(function, 1)) { |
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366 | (void) fprintf(vis_stdout, "Tautology\n"); |
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367 | return; |
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368 | } |
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369 | |
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370 | if (mdd_is_tautology(function, 0)) { |
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371 | (void) fprintf(vis_stdout, "EmptyBdd\n"); |
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372 | return; |
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373 | } |
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374 | |
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375 | /* Allocate the generator and start the iteration */ |
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376 | gen = bdd_first_cube(function, &cube); |
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377 | |
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378 | do { |
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379 | arrayForEachItem(int, cube, i, literal) { |
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380 | if (literal == 2) { |
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381 | (void) fprintf(vis_stdout, "-"); |
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382 | } |
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383 | else { |
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384 | (void) fprintf(vis_stdout, "%1d", literal); |
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385 | } |
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386 | } |
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387 | (void) fprintf(vis_stdout, "\n"); |
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388 | } while (bdd_next_cube(gen, &cube)); |
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389 | |
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390 | /* Clean Up */ |
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391 | bdd_gen_free(gen); |
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392 | } /* End of AbsBddPrintMinterms */ |
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393 | |
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394 | /**Function******************************************************************** |
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395 | |
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396 | Synopsis [Function to detect portions of a formula that need to be evaluated |
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397 | only once] |
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398 | |
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399 | Description [This procedure detects portions of a formula that need to be |
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400 | evaluated only once. This amounts basically to detect if there is any vertex |
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401 | representing a variable in a fix-point. If not, after the formula has been |
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402 | evaluated it is declared constant and no further evaluation is required.] |
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403 | |
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404 | SideEffects [required] |
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405 | |
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406 | SeeAlso [optional] |
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407 | |
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408 | ******************************************************************************/ |
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409 | void |
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410 | AbsFormulaSetConstantBit( |
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411 | AbsVertexInfo_t *vertexPtr) |
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412 | { |
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413 | boolean leftCntBit; |
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414 | boolean rightCntBit; |
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415 | |
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416 | if (AbsVertexReadType(vertexPtr) == identifier_c) { |
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417 | AbsVertexSetConstant(vertexPtr, TRUE); |
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418 | return; |
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419 | } |
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420 | |
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421 | if (AbsVertexReadType(vertexPtr) == variable_c) { |
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422 | AbsVertexSetConstant(vertexPtr, FALSE); |
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423 | return; |
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424 | } |
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425 | |
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426 | leftCntBit = TRUE; |
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427 | rightCntBit = TRUE; |
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428 | |
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429 | /* Recursive call in the left kid */ |
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430 | if (AbsVertexReadLeftKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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431 | AbsFormulaSetConstantBit(AbsVertexReadLeftKid(vertexPtr)); |
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432 | leftCntBit = AbsVertexReadConstant(AbsVertexReadLeftKid(vertexPtr)); |
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433 | } |
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434 | |
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435 | /* Recursive call in the right kid */ |
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436 | if (AbsVertexReadRightKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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437 | AbsFormulaSetConstantBit(AbsVertexReadRightKid(vertexPtr)); |
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438 | rightCntBit = AbsVertexReadConstant(AbsVertexReadRightKid(vertexPtr)); |
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439 | } |
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440 | |
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441 | AbsVertexSetConstant(vertexPtr, leftCntBit && rightCntBit); |
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442 | |
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443 | return; |
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444 | } /* End of AbsFormulaSetConstantBit */ |
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445 | |
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446 | /**Function******************************************************************** |
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447 | |
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448 | Synopsis [Standard tests to check if the graph represenging a formula is |
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449 | correctly built] |
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450 | |
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451 | SideEffects [] |
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452 | |
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453 | SeeAlso [AbsVertexInfo] |
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454 | |
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455 | ******************************************************************************/ |
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456 | boolean |
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457 | AbsFormulaSanityCheck( |
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458 | AbsVertexInfo_t *vertexPtr, |
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459 | st_table *rootTable) |
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460 | { |
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461 | AbsVertexInfo_t *aux; |
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462 | boolean result; |
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463 | lsGen listGen; |
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464 | int leftDepth; |
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465 | int rightDepth; |
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466 | |
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467 | result = TRUE; |
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468 | |
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469 | /* Check the type */ |
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470 | if (AbsVertexReadType(vertexPtr) == false_c) { |
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471 | result = FALSE; |
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472 | (void) fprintf(vis_stdout, "** abs error: Illegal formula type.\n"); |
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473 | } |
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474 | |
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475 | /* Check the refs and the served fields */ |
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476 | if (AbsVertexReadRefs(vertexPtr) < 0 || AbsVertexReadServed(vertexPtr) < 0 || |
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477 | AbsVertexReadRefs(vertexPtr) < AbsVertexReadServed(vertexPtr)) { |
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478 | result = FALSE; |
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479 | (void) fprintf(vis_stdout, "** abs error: Illegal value on reference count.\n"); |
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480 | } |
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481 | |
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482 | /* Check the depth */ |
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483 | leftDepth = AbsVertexReadDepth(vertexPtr) - 1; |
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484 | rightDepth = AbsVertexReadDepth(vertexPtr) - 1; |
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485 | if (AbsVertexReadLeftKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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486 | leftDepth = AbsVertexReadDepth(AbsVertexReadLeftKid(vertexPtr)); |
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487 | } |
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488 | if (AbsVertexReadRightKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
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489 | rightDepth = AbsVertexReadDepth(AbsVertexReadRightKid(vertexPtr)); |
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490 | } |
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491 | if (leftDepth + 1 != AbsVertexReadDepth(vertexPtr) && |
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492 | rightDepth + 1 != AbsVertexReadDepth(vertexPtr)) { |
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493 | result = FALSE; |
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494 | (void) fprintf(vis_stdout, "** abs error: Illegal depth value.\n"); |
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495 | } |
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496 | |
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497 | /* Check if the parent pointers are correctly set */ |
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498 | lsForEachItem(AbsVertexReadParent(vertexPtr), listGen, aux) { |
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499 | if (AbsVertexReadLeftKid(aux) != vertexPtr && |
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500 | AbsVertexReadRightKid(aux) != vertexPtr) { |
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501 | lsFinish(listGen); |
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502 | result = FALSE; |
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503 | (void) fprintf(vis_stdout, "** abs error: Illegal parent pointer.\n"); |
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504 | } |
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505 | } |
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506 | |
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507 | /* Check if number of parents and ref agree */ |
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508 | if ((lsLength(AbsVertexReadParent(vertexPtr)) + |
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509 | st_is_member(rootTable, (char *) vertexPtr)) != |
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510 | AbsVertexReadRefs(vertexPtr)) { |
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511 | result = FALSE; |
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512 | (void) fprintf(vis_stdout, "** abs error: Illegal number of parents.\n"); |
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513 | } |
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514 | |
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515 | /* Check if the constant flag is properly set */ |
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516 | if (AbsVertexReadConstant(vertexPtr)) { |
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517 | if (AbsVertexReadType(vertexPtr) == variable_c) { |
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518 | result = FALSE; |
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519 | (void) fprintf(vis_stdout, "** abs error: Illegal constant flag.\n"); |
---|
520 | } |
---|
521 | else { |
---|
522 | AbsVertexInfo_t *leftKid; |
---|
523 | AbsVertexInfo_t *rightKid; |
---|
524 | |
---|
525 | leftKid = AbsVertexReadLeftKid(vertexPtr); |
---|
526 | rightKid = AbsVertexReadRightKid(vertexPtr); |
---|
527 | |
---|
528 | if (leftKid != NIL(AbsVertexInfo_t) && !AbsVertexReadConstant(leftKid)) { |
---|
529 | result = FALSE; |
---|
530 | (void) fprintf(vis_stdout, "** abs error: Illegal constant flag.\n"); |
---|
531 | } |
---|
532 | if (rightKid != NIL(AbsVertexInfo_t) && |
---|
533 | !AbsVertexReadConstant(rightKid)) { |
---|
534 | result = FALSE; |
---|
535 | (void) fprintf(vis_stdout, "** abs error: Illegal constant flag.\n"); |
---|
536 | } |
---|
537 | } |
---|
538 | } |
---|
539 | |
---|
540 | /* Check the polarity labeling */ |
---|
541 | if (AbsVertexReadType(vertexPtr) == not_c) { |
---|
542 | if (AbsVertexReadPolarity(vertexPtr) == |
---|
543 | AbsVertexReadPolarity(AbsVertexReadLeftKid(vertexPtr))) { |
---|
544 | result = FALSE; |
---|
545 | (void) fprintf(vis_stdout, "** abs error: Illegal polarity labeling.\n"); |
---|
546 | } |
---|
547 | } |
---|
548 | else { |
---|
549 | if (AbsVertexReadLeftKid(vertexPtr) != NIL(AbsVertexInfo_t) && |
---|
550 | AbsVertexReadPolarity(vertexPtr) != |
---|
551 | AbsVertexReadPolarity(AbsVertexReadLeftKid(vertexPtr))) { |
---|
552 | result = FALSE; |
---|
553 | (void) fprintf(vis_stdout, "** abs error: Illegal polarity labeling.\n"); |
---|
554 | } |
---|
555 | if (AbsVertexReadRightKid(vertexPtr) != NIL(AbsVertexInfo_t) && |
---|
556 | AbsVertexReadPolarity(vertexPtr) != |
---|
557 | AbsVertexReadPolarity(AbsVertexReadRightKid(vertexPtr))) { |
---|
558 | result = FALSE; |
---|
559 | (void) fprintf(vis_stdout, "** abs error: Illegal polarity labeling.\n"); |
---|
560 | } |
---|
561 | } |
---|
562 | |
---|
563 | if (!result) { |
---|
564 | return result; |
---|
565 | } |
---|
566 | |
---|
567 | /* Recur over the sub-formulas */ |
---|
568 | if (AbsVertexReadLeftKid(vertexPtr) != NIL(AbsVertexInfo_t)) { |
---|
569 | result = AbsFormulaSanityCheck(AbsVertexReadLeftKid(vertexPtr), rootTable); |
---|
570 | } |
---|
571 | |
---|
572 | if (!result) { |
---|
573 | return result; |
---|
574 | } |
---|
575 | |
---|
576 | if (AbsVertexReadRightKid(vertexPtr) != NIL(AbsVertexInfo_t) && |
---|
577 | AbsVertexReadType(vertexPtr) != fixedPoint_c) { |
---|
578 | result = AbsFormulaSanityCheck(AbsVertexReadRightKid(vertexPtr), rootTable); |
---|
579 | } |
---|
580 | |
---|
581 | return result; |
---|
582 | } /* End of AbsFormulaSanityCheck */ |
---|
583 | |
---|
584 | /**Function******************************************************************** |
---|
585 | |
---|
586 | Synopsis [Sanity check for the set of iterates in a fixed point] |
---|
587 | |
---|
588 | Description [This function verifies the property that in the sequence of |
---|
589 | iterates of a fixed point s_1,...,s_n, if i<j then s_i\subseteq s_j. If the |
---|
590 | condition is not satisfied it returns a FALSE. Its use is recommended inside |
---|
591 | an assert clause, that way, whenever the property is not satisfied, the |
---|
592 | program aborts] |
---|
593 | |
---|
594 | SideEffects [] |
---|
595 | |
---|
596 | ******************************************************************************/ |
---|
597 | boolean |
---|
598 | AbsIteratesSanityCheck( |
---|
599 | Abs_VerificationInfo_t *absInfo, |
---|
600 | AbsVertexInfo_t *vertexPtr) |
---|
601 | { |
---|
602 | array_t *rings; |
---|
603 | mdd_t *element; |
---|
604 | mdd_t *previous; |
---|
605 | mdd_t *careSet; |
---|
606 | boolean result; |
---|
607 | int index; |
---|
608 | |
---|
609 | /* Variable initialization */ |
---|
610 | careSet = AbsVerificationInfoReadCareSet(absInfo); |
---|
611 | result = TRUE; |
---|
612 | rings = AbsVertexReadRings(vertexPtr); |
---|
613 | element = NIL(mdd_t); |
---|
614 | previous = NIL(mdd_t); |
---|
615 | |
---|
616 | arrayForEachItem(mdd_t *, rings, index, element) { |
---|
617 | if (previous != NIL(mdd_t)) { |
---|
618 | result = result && AbsMddLEqualModCareSet(previous, element, careSet); |
---|
619 | if (AbsMddEqualModCareSet(previous, element, careSet) && |
---|
620 | index != array_n(rings) - 1) { |
---|
621 | result = FALSE; |
---|
622 | } |
---|
623 | } |
---|
624 | previous = element; |
---|
625 | } |
---|
626 | |
---|
627 | return result; |
---|
628 | } /* End of AbsIteratesSanityCheck */ |
---|
629 | |
---|
630 | /**Function******************************************************************** |
---|
631 | |
---|
632 | Synopsis [Print the statistics report] |
---|
633 | |
---|
634 | SideEffects [] |
---|
635 | |
---|
636 | ******************************************************************************/ |
---|
637 | void |
---|
638 | AbsStatsPrintReport( |
---|
639 | FILE *fp, |
---|
640 | AbsStats_t *stats) |
---|
641 | { |
---|
642 | (void) fprintf(fp, "ABS: ------- Statistics Begin Report -------\n"); |
---|
643 | (void) fprintf(fp, "ABS: FixedPoint Evaluated %6d times\n", |
---|
644 | AbsStatsReadEvalFixedPoint(stats)); |
---|
645 | (void) fprintf(fp, "ABS: Refined %6d times\n", |
---|
646 | AbsStatsReadRefineFixedPoint(stats)); |
---|
647 | (void) fprintf(fp, "ABS: And Evaluated %6d times\n", |
---|
648 | AbsStatsReadEvalAnd(stats)); |
---|
649 | (void) fprintf(fp, "ABS: Refined %6d times\n", |
---|
650 | AbsStatsReadRefineAnd(stats)); |
---|
651 | (void) fprintf(fp, "ABS: Not Evaluated %6d times\n", |
---|
652 | AbsStatsReadEvalNot(stats)); |
---|
653 | (void) fprintf(fp, "ABS: Refined %6d times\n", |
---|
654 | AbsStatsReadRefineNot(stats)); |
---|
655 | (void) fprintf(fp, "ABS: PreImage Evaluated %6d times\n", |
---|
656 | AbsStatsReadEvalPreImage(stats)); |
---|
657 | (void) fprintf(fp, "ABS: Refined %6d times\n", |
---|
658 | AbsStatsReadRefinePreImage(stats)); |
---|
659 | (void) fprintf(fp, "ABS: Identifier Evaluated %6d times\n", |
---|
660 | AbsStatsReadEvalIdentifier(stats)); |
---|
661 | (void) fprintf(fp, "ABS: Refined %6d times\n", |
---|
662 | AbsStatsReadRefineIdentifier(stats)); |
---|
663 | (void) fprintf(fp, "ABS: Variable Evaluated %6d times\n", |
---|
664 | AbsStatsReadEvalVariable(stats)); |
---|
665 | (void) fprintf(fp, "ABS: Refined %6d times\n", |
---|
666 | AbsStatsReadRefineVariable(stats)); |
---|
667 | (void) fprintf(fp, "ABS: ---------------------------------------\n"); |
---|
668 | (void) fprintf(fp, "ABS: Preimage Exact %6d times\n", |
---|
669 | AbsStatsReadExactPreImage(stats)); |
---|
670 | (void) fprintf(fp, "ABS: Approx. %6d times\n", |
---|
671 | AbsStatsReadApproxPreImage(stats)); |
---|
672 | (void) fprintf(fp, "ABS: Image Exact %6d times\n", |
---|
673 | AbsStatsReadExactImage(stats)); |
---|
674 | (void) fprintf(fp, "ABS: ---------------------------------------\n"); |
---|
675 | (void) fprintf(fp, "ABS: PreImg CacheEntries %6d entries\n", |
---|
676 | AbsStatsReadPreImageCacheEntries(stats)); |
---|
677 | (void) fprintf(fp, "ABS: Img CacheEntries %6d entries\n", |
---|
678 | AbsStatsReadImageCacheEntries(stats)); |
---|
679 | (void) fprintf(fp, "ABS: ---------------------------------------\n"); |
---|
680 | (void) fprintf(fp, "ABS: PreImg Cpu Time %7.1f seconds\n", |
---|
681 | AbsStatsReadPreImageCpuTime(stats)/1000.0); |
---|
682 | (void) fprintf(fp, "ABS: AppPre Cpu Time %7.1f seconds\n", |
---|
683 | AbsStatsReadAppPreCpuTime(stats)/1000.0); |
---|
684 | (void) fprintf(fp, "ABS: Image Cpu Time %7.1f seconds\n", |
---|
685 | AbsStatsReadImageCpuTime(stats)/1000.0); |
---|
686 | (void) fprintf(fp, "ABS: ---------------------------------------\n"); |
---|
687 | (void) fprintf(fp, "ABS: Reordering Invoked %6d times\n", |
---|
688 | AbsStatsReadNumReorderings(stats)); |
---|
689 | (void) fprintf(fp, "ABS: ---------------------------------------\n"); |
---|
690 | util_print_cpu_stats(vis_stdout); |
---|
691 | (void) fprintf(fp, "ABS: ------- Statistics End Report -------\n"); |
---|
692 | |
---|
693 | return; |
---|
694 | } /* End of AbsStatsPrintReport */ |
---|
695 | |
---|
696 | |
---|
697 | /*---------------------------------------------------------------------------*/ |
---|
698 | /* Definition of static functions */ |
---|
699 | /*---------------------------------------------------------------------------*/ |
---|
700 | |
---|
701 | /**Function******************************************************************** |
---|
702 | |
---|
703 | Synopsis [Prints the vertex content in DOT format.] |
---|
704 | |
---|
705 | SideEffects [] |
---|
706 | |
---|
707 | SeeAlso [AbsVertexPrintDot] |
---|
708 | |
---|
709 | ******************************************************************************/ |
---|
710 | static void |
---|
711 | VertexPrintDotRecur( |
---|
712 | FILE *fp, |
---|
713 | AbsVertexInfo_t *vertex, |
---|
714 | st_table *visited) |
---|
715 | { |
---|
716 | AbsVertexInfo_t *leftKid; |
---|
717 | AbsVertexInfo_t *rightKid; |
---|
718 | |
---|
719 | /* Check the cache */ |
---|
720 | if (st_is_member(visited, (char *)vertex)) { |
---|
721 | return; |
---|
722 | } |
---|
723 | |
---|
724 | /* Recur in the left kid if needed */ |
---|
725 | leftKid = AbsVertexReadLeftKid(vertex); |
---|
726 | if (leftKid != NIL(AbsVertexInfo_t)) { |
---|
727 | VertexPrintDotRecur(fp, AbsVertexReadLeftKid(vertex), visited); |
---|
728 | |
---|
729 | if (AbsVertexReadType(leftKid) != identifier_c) { |
---|
730 | (void) fprintf(fp, " \"%s(%d)%c\" -> \"%s(%d)%c\";\n", |
---|
731 | VertexTypeToString(vertex), |
---|
732 | AbsVertexReadId(vertex), |
---|
733 | AbsVertexReadPolarity(vertex)?'+':'-', |
---|
734 | VertexTypeToString(leftKid), |
---|
735 | AbsVertexReadId(leftKid), |
---|
736 | AbsVertexReadPolarity(leftKid)?'+':'-'); |
---|
737 | } |
---|
738 | else { |
---|
739 | (void) fprintf(fp, " \"%s(%d)%c\" -> \"%s=%s(%d)%c\"\n", |
---|
740 | VertexTypeToString(vertex), |
---|
741 | AbsVertexReadId(vertex), |
---|
742 | AbsVertexReadPolarity(vertex)?'+':'-', |
---|
743 | AbsVertexReadName(leftKid), |
---|
744 | AbsVertexReadValue(leftKid), |
---|
745 | AbsVertexReadId(leftKid), |
---|
746 | AbsVertexReadPolarity(leftKid)?'+':'-'); |
---|
747 | } |
---|
748 | } |
---|
749 | |
---|
750 | /* Recur in the right kid if needed */ |
---|
751 | rightKid = AbsVertexReadRightKid(vertex); |
---|
752 | if (rightKid != NIL(AbsVertexInfo_t)) { |
---|
753 | VertexPrintDotRecur(fp, AbsVertexReadRightKid(vertex), visited); |
---|
754 | |
---|
755 | if (AbsVertexReadType(rightKid) != identifier_c) { |
---|
756 | (void) fprintf(fp, " \"%s(%d)%c\" -> \"%s(%d)%c\";\n", |
---|
757 | VertexTypeToString(vertex), |
---|
758 | AbsVertexReadId(vertex), |
---|
759 | AbsVertexReadPolarity(vertex)?'+':'-', |
---|
760 | VertexTypeToString(rightKid), |
---|
761 | AbsVertexReadId(rightKid), |
---|
762 | AbsVertexReadPolarity(rightKid)?'+':'-'); |
---|
763 | } |
---|
764 | else { |
---|
765 | (void) fprintf(fp, " \"%s(%d)%c\" -> \"%s=%s(%d)%c\"\n", |
---|
766 | VertexTypeToString(vertex), |
---|
767 | AbsVertexReadId(vertex), |
---|
768 | AbsVertexReadPolarity(vertex)?'+':'-', |
---|
769 | AbsVertexReadName(rightKid), |
---|
770 | AbsVertexReadValue(rightKid), |
---|
771 | AbsVertexReadId(rightKid), |
---|
772 | AbsVertexReadPolarity(rightKid)?'+':'-'); |
---|
773 | } |
---|
774 | } |
---|
775 | |
---|
776 | st_insert(visited, (char *)vertex, NIL(char)); |
---|
777 | |
---|
778 | return; |
---|
779 | } /* End of VertexPrintDotRecur */ |
---|
780 | |
---|
781 | /**Function******************************************************************** |
---|
782 | |
---|
783 | Synopsis [Returns the string representing a vertex type.] |
---|
784 | |
---|
785 | SideEffects [] |
---|
786 | |
---|
787 | ******************************************************************************/ |
---|
788 | static char * |
---|
789 | VertexTypeToString( |
---|
790 | AbsVertexInfo_t *vertex) |
---|
791 | { |
---|
792 | char *typeStr; |
---|
793 | |
---|
794 | switch (AbsVertexReadType(vertex)) { |
---|
795 | case fixedPoint_c: |
---|
796 | typeStr = "LFP"; |
---|
797 | break; |
---|
798 | case and_c: |
---|
799 | typeStr = "AND"; |
---|
800 | break; |
---|
801 | case xor_c: |
---|
802 | typeStr = "XOR"; |
---|
803 | break; |
---|
804 | case xnor_c: |
---|
805 | typeStr = "XNOR"; |
---|
806 | break; |
---|
807 | case not_c: |
---|
808 | typeStr = "NOT"; |
---|
809 | break; |
---|
810 | case preImage_c: |
---|
811 | typeStr = "Pre"; |
---|
812 | break; |
---|
813 | case identifier_c: |
---|
814 | typeStr = "Id"; |
---|
815 | break; |
---|
816 | case variable_c: |
---|
817 | typeStr = "VAR"; |
---|
818 | break; |
---|
819 | case false_c: |
---|
820 | typeStr = "FALSE"; |
---|
821 | break; |
---|
822 | default: |
---|
823 | fail("Unknown vertex type."); |
---|
824 | break; |
---|
825 | } |
---|
826 | |
---|
827 | return typeStr; |
---|
828 | } /* End of VertexTypeToString */ |
---|
829 | |
---|