Adding switch -P <num> to command 'cover'.

src/base/abci/abc.c

@@ -10952,6 +10952,7 @@ int Abc_CommandCover( Abc_Frame_t * pAbc, int argc, char ** argv )
     int fUseEsop;
     int fUseInvs;
     int nFaninMax;
+    int nCubesMax;
     pNtk = Abc_FrameReadNtk(pAbc);
 
     // set defaults
@@ -10960,15 +10961,16 @@ int Abc_CommandCover( Abc_Frame_t * pAbc, int argc, char ** argv )
     fVerbose  =  0;
     fUseInvs  =  1;
     nFaninMax =  8;
+    nCubesMax =  8;
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "Nsxivh" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "IPsxivh" ) ) != EOF )
     {
         switch ( c )
         {
-        case 'N':
+        case 'I':
             if ( globalUtilOptind >= argc )
             {
-                Abc_Print( -1, "Command line switch \"-N\" should be followed by an integer.\n" );
+                Abc_Print( -1, "Command line switch \"-I\" should be followed by an integer.\n" );
                 goto usage;
             }
             nFaninMax = atoi(argv[globalUtilOptind]);
@@ -10976,6 +10978,17 @@ int Abc_CommandCover( Abc_Frame_t * pAbc, int argc, char ** argv )
             if ( nFaninMax < 0 )
                 goto usage;
             break;
+        case 'P':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-P\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nCubesMax = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nCubesMax < 0 )
+                goto usage;
+            break;
         case 's':
             fUseSop ^= 1;
             break;
@@ -11007,7 +11020,7 @@ int Abc_CommandCover( Abc_Frame_t * pAbc, int argc, char ** argv )
     }
 
     // run the command
-    pNtkRes = Abc_NtkSopEsopCover( pNtk, nFaninMax, fUseEsop, fUseSop, fUseInvs, fVerbose );
+    pNtkRes = Abc_NtkSopEsopCover( pNtk, nFaninMax, nCubesMax, fUseEsop, fUseSop, fUseInvs, fVerbose );
     if ( pNtkRes == NULL )
     {
         Abc_Print( -1, "Command has failed.\n" );
@@ -11018,10 +11031,11 @@ int Abc_CommandCover( Abc_Frame_t * pAbc, int argc, char ** argv )
     return 0;
 
 usage:
-    Abc_Print( -2, "usage: cover [-N num] [-sxvh]\n" );
+    Abc_Print( -2, "usage: cover [-IP num] [-sxvh]\n" );
     Abc_Print( -2, "\t         decomposition into a network of SOP/ESOP PLAs\n" );
     Abc_Print( -2, "\t         (this command is known to have bugs)\n");
-    Abc_Print( -2, "\t-N num : maximum number of inputs [default = %d]\n", nFaninMax );
+    Abc_Print( -2, "\t-I num : maximum number of inputs [default = %d]\n", nFaninMax );
+    Abc_Print( -2, "\t-P num : maximum number of products [default = %d]\n", nCubesMax );
     Abc_Print( -2, "\t-s     : toggle the use of SOPs [default = %s]\n", fUseSop? "yes": "no" );
     Abc_Print( -2, "\t-x     : toggle the use of ESOPs [default = %s]\n", fUseEsop? "yes": "no" );
 //    Abc_Print( -2, "\t-i     : toggle the use of interters [default = %s]\n", fUseInvs? "yes": "no" );

src/map/cov/cov.h

@@ -88,9 +88,9 @@ extern Abc_Ntk_t * Abc_NtkCovDerive( Cov_Man_t * p, Abc_Ntk_t * pNtk );
 extern Abc_Ntk_t * Abc_NtkCovDeriveClean( Cov_Man_t * p, Abc_Ntk_t * pNtk );
 extern Abc_Ntk_t * Abc_NtkCovDeriveRegular( Cov_Man_t * p, Abc_Ntk_t * pNtk );
 /*=== covCore.c ===========================================================*/
-extern Abc_Ntk_t * Abc_NtkSopEsopCover( Abc_Ntk_t * pNtk, int nFaninMax, int fUseEsop, int fUseSop, int fUseInvs, int fVerbose );
+extern Abc_Ntk_t * Abc_NtkSopEsopCover( Abc_Ntk_t * pNtk, int nFaninMax, int nCubesMax, int fUseEsop, int fUseSop, int fUseInvs, int fVerbose );
 /*=== covMan.c ============================================================*/
-extern Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax );
+extern Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax, int nCubesMax );
 extern void        Cov_ManFree( Cov_Man_t * p );
 extern void        Abc_NodeCovDropData( Cov_Man_t * p, Abc_Obj_t * pObj );
 /*=== covTest.c ===========================================================*/

src/map/cov/covCore.c

@@ -57,7 +57,7 @@ static Min_Cube_t * Abc_NodeCovSum( Cov_Man_t * p, Min_Cube_t * pCover0, Min_Cub
   SeeAlso     []
 
 ***********************************************************************/
-Abc_Ntk_t * Abc_NtkSopEsopCover( Abc_Ntk_t * pNtk, int nFaninMax, int fUseEsop, int fUseSop, int fUseInvs, int fVerbose )
+Abc_Ntk_t * Abc_NtkSopEsopCover( Abc_Ntk_t * pNtk, int nFaninMax, int nCubesMax, int fUseEsop, int fUseSop, int fUseInvs, int fVerbose )
 {
     Abc_Ntk_t * pNtkNew;
     Cov_Man_t * p;
@@ -65,7 +65,7 @@ Abc_Ntk_t * Abc_NtkSopEsopCover( Abc_Ntk_t * pNtk, int nFaninMax, int fUseEsop,
     assert( Abc_NtkIsStrash(pNtk) );
 
     // create the manager
-    p = Cov_ManAlloc( pNtk, nFaninMax );
+    p = Cov_ManAlloc( pNtk, nFaninMax, nCubesMax );
     p->fUseEsop = fUseEsop;
     p->fUseSop  = fUseSop;
     pNtk->pManCut = p;

src/map/cov/covMan.c

@@ -42,7 +42,7 @@ ABC_NAMESPACE_IMPL_START
   SeeAlso     []
 
 ***********************************************************************/
-Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax )
+Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax, int nCubesMax )
 {
     Cov_Man_t * pMan;
     Cov_Obj_t * pMem;
@@ -54,7 +54,7 @@ Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax )
     pMan = ABC_ALLOC( Cov_Man_t, 1 );
     memset( pMan, 0, sizeof(Cov_Man_t) );
     pMan->nFaninMax = nFaninMax;
-    pMan->nCubesMax = 2 * pMan->nFaninMax;
+    pMan->nCubesMax = nCubesMax;
     pMan->nWords    = Abc_BitWordNum( nFaninMax * 2 );
 
     // get the cubes