Dumping multiple counter-examples.

src/base/io/io.c

@@ -2326,107 +2326,12 @@ int Abc_NtkCheckSpecialPi( Abc_Ntk_t * pNtk )
   SeeAlso     []
 
 ***********************************************************************/
-int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
+void Abc_NtkDumpOneCex( FILE * pFile, Abc_Ntk_t * pNtk, Abc_Cex_t * pCex, 
+    int fPrintFull, int fNames, int fUseFfNames, int fMinimize, int fUseOldMin, 
+    int fCheckCex, int fUseSatBased, int fHighEffort, int fAiger, int fVerbose )
 {
-    Abc_Ntk_t * pNtk;
-    char * pFileName;
-    int c, fNames  = 0;
-    int fMinimize  = 0;
-    int fUseSatBased = 0;
-    int fHighEffort = 0;
-    int fUseOldMin = 0;
-    int fCheckCex  = 0;
-    int forceSeq   = 0;
-    int fAiger     = 0;
-    int fPrintFull = 0;
-    int fUseFfNames = 0;
-    int fVerbose   = 0;
-
-    Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "snmueocafzvh" ) ) != EOF )
-    {
-        switch ( c )
-        {
-            case 's':
-                forceSeq ^= 1;
-                break;
-            case 'n':
-                fNames ^= 1;
-                break;
-            case 'm':
-                fMinimize ^= 1;
-                break;
-            case 'u':
-                fUseSatBased ^= 1;
-                break;
-            case 'e':
-                fHighEffort ^= 1;
-                break;
-            case 'o':
-                fUseOldMin ^= 1;
-                break;
-            case 'c':
-                fCheckCex ^= 1;
-                break;
-            case 'a':
-                fAiger ^= 1;
-                break;
-            case 'f':
-                fPrintFull ^= 1;
-                break;
-            case 'z':
-                fUseFfNames ^= 1;
-                break;
-            case 'v':
-                fVerbose ^= 1;
-                break;
-            case 'h':
-                goto usage;
-            default:
-                goto usage;
-        }
-    }
-    pNtk = pAbc->pNtkCur;
-    if ( pNtk == NULL )
-    {
-        fprintf( pAbc->Out, "Empty network.\n" );
-        return 0;
-    }
-    if ( pNtk->pModel == NULL && pAbc->pCex == NULL )
-    {
-        fprintf( pAbc->Out, "Counter-example is not available.\n" );
-        return 0;
-    }
-    if ( argc != globalUtilOptind + 1 )
-    {
-        printf( "File name is missing on the command line.\n" );
-        goto usage;
-    }
-
-    // get the input file name
-    pFileName = argv[globalUtilOptind];
-    // write the counter-example into the file
-    if ( pAbc->pCex )
-    { 
-        Abc_Cex_t * pCex = pAbc->pCex;
     Abc_Obj_t * pObj;
-        FILE * pFile;
     int i, f;
-        /*
-        Abc_NtkForEachLatch( pNtk, pObj, i )
-            if ( !Abc_LatchIsInit0(pObj) )
-            {
-                fprintf( stdout, "IoCommandWriteCex(): The init-state should be all-0 for counter-example to work.\n" );
-                fprintf( stdout, "Run commands \"undc\" and \"zero\" and then rerun the equivalence check.\n" );
-                return 1;
-            }
-        */
-        pFile = fopen( pFileName, "w" );
-        if ( pFile == NULL )
-        {
-            fprintf( stdout, "IoCommandWriteCex(): Cannot open the output file \"%s\".\n", pFileName );
-            return 1;
-        }
     if ( fPrintFull )
     {
         extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters );
@@ -2480,7 +2385,7 @@ int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
             if ( iPivotPi == Abc_NtkPiNum(pNtk) )
             {
                 fprintf( stdout, "IoCommandWriteCex(): Cannot find special PI required by switch \"-z\".\n" );
-                    return 1;
+                return;
             }
             // count X-valued flops
             for ( i = iPivotPi+1; i < Abc_NtkPiNum(pNtk); i++ )
@@ -2533,6 +2438,136 @@ int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
             fprintf( pFile, "%c", '0'+Abc_InfoHasBit(pCex->pData, i) );
         }
     }
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int IoCommandWriteCex( Abc_Frame_t * pAbc, int argc, char **argv )
+{
+    Abc_Ntk_t * pNtk;
+    char * pFileName;
+    int c, fNames  = 0;
+    int fMinimize  = 0;
+    int fUseSatBased = 0;
+    int fHighEffort = 0;
+    int fUseOldMin = 0;
+    int fCheckCex  = 0;
+    int forceSeq   = 0;
+    int fAiger     = 0;
+    int fPrintFull = 0;
+    int fUseFfNames = 0;
+    int fVerbose   = 0;
+
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "snmueocafzvh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+            case 's':
+                forceSeq ^= 1;
+                break;
+            case 'n':
+                fNames ^= 1;
+                break;
+            case 'm':
+                fMinimize ^= 1;
+                break;
+            case 'u':
+                fUseSatBased ^= 1;
+                break;
+            case 'e':
+                fHighEffort ^= 1;
+                break;
+            case 'o':
+                fUseOldMin ^= 1;
+                break;
+            case 'c':
+                fCheckCex ^= 1;
+                break;
+            case 'a':
+                fAiger ^= 1;
+                break;
+            case 'f':
+                fPrintFull ^= 1;
+                break;
+            case 'z':
+                fUseFfNames ^= 1;
+                break;
+            case 'v':
+                fVerbose ^= 1;
+                break;
+            case 'h':
+                goto usage;
+            default:
+                goto usage;
+        }
+    }
+    pNtk = pAbc->pNtkCur;
+    if ( pNtk == NULL )
+    {
+        fprintf( pAbc->Out, "Empty network.\n" );
+        return 0;
+    }
+    if ( pNtk->pModel == NULL && pAbc->pCex == NULL )
+    {
+        fprintf( pAbc->Out, "Counter-example is not available.\n" );
+        return 0;
+    }
+    if ( argc != globalUtilOptind + 1 )
+    {
+        printf( "File name is missing on the command line.\n" );
+        goto usage;
+    }
+
+    // get the input file name
+    pFileName = argv[globalUtilOptind];
+    // write the counter-example into the file
+    if ( pAbc->pCex || pAbc->vCexVec )
+    { 
+        Abc_Cex_t * pCex = pAbc->pCex;
+        FILE * pFile; int i;
+        /*
+        Abc_NtkForEachLatch( pNtk, pObj, i )
+            if ( !Abc_LatchIsInit0(pObj) )
+            {
+                fprintf( stdout, "IoCommandWriteCex(): The init-state should be all-0 for counter-example to work.\n" );
+                fprintf( stdout, "Run commands \"undc\" and \"zero\" and then rerun the equivalence check.\n" );
+                return 1;
+            }
+        */
+        pFile = fopen( pFileName, "w" );
+        if ( pFile == NULL )
+        {
+            fprintf( stdout, "IoCommandWriteCex(): Cannot open the output file \"%s\".\n", pFileName );
+            return 1;
+        }
+        if ( pAbc->pCex )
+        {
+            Abc_NtkDumpOneCex( pFile, pNtk, pCex, 
+                fPrintFull, fNames, fUseFfNames, fMinimize, fUseOldMin, 
+                fCheckCex, fUseSatBased, fHighEffort, fAiger, fVerbose );
+        }
+        else if ( pAbc->vCexVec )
+        {
+            Vec_PtrForEachEntry( Abc_Cex_t *, pAbc->vCexVec, pCex, i )
+            {
+                if ( pCex == NULL )
+                    continue;
+                fprintf( pFile, "#\n# CEX for output number %d (%s)\n#\n", i, Abc_ObjName(Abc_NtkPo(pNtk, i)) ); 
+                Abc_NtkDumpOneCex( pFile, pNtk, pCex, 
+                    fPrintFull, fNames, fUseFfNames, fMinimize, fUseOldMin, 
+                    fCheckCex, fUseSatBased, fHighEffort, fAiger, fVerbose );
+            }
+        }
         fprintf( pFile, "# DONE\n" ); 
         fclose( pFile );
     }