Fixing the problem with outputting word-level CEXes after retiming.

src/base/wlc/wlcBlast.c

@@ -1151,6 +1151,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
     int nFFins = 0, nFFouts = 0, curPi = 0, curPo = 0, nFf2Regs = 0;
     int nBitCis = 0, nBitCos = 0, fAdded = 0;
     int iFirstAddPi = -1;  // remembers the first additional PI that stands for DC-flop output
+    int iFirstFlop  = -1;  // remembers the first flop of the design
     Wlc_BstPar_t Par, * pPar = &Par;
     Wlc_BstParDefault( pPar );
     pPar = pParIn ? pParIn : pPar;
@@ -2118,11 +2119,13 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
     if ( p->pInits )
     {
         int Length = strlen(p->pInits);
+        // remember the place in the array where the first PI begins
+        iFirstAddPi = Vec_PtrSize(pNew->vNamesIn);
         for ( i = 0; i < Length; i++ )
         if ( p->pInits[i] == 'x' || p->pInits[i] == 'X' )
         {
-            char Buffer[100];
-            sprintf( Buffer, "%s%d", "init", i );
+            //char Buffer[100];
+            //sprintf( Buffer, "%s%d", "init", i );
             //Vec_PtrPush( pNew->vNamesIn, Abc_UtilStrsav(Buffer) );
             // save NULL at this time - to be overwritten later
             //printf( "Adding NULL in position %d\n", Vec_PtrSize(pNew->vNamesIn) );
@@ -2130,7 +2133,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
             fAdded = 1;
         }
         // remember the place in the array where the first real flop is
-        iFirstAddPi = Vec_PtrSize(pNew->vNamesIn);
+        iFirstFlop = Vec_PtrSize(pNew->vNamesIn);
     }
     Wlc_NtkForEachCi( p, pObj, i )
     if ( !Wlc_ObjIsPi(pObj) )
@@ -2202,17 +2205,18 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
     // finish creating names of additional primary inputs
     if ( p->pInits )
     {
-        int Length = strlen(p->pInits);
-        assert( iFirstAddPi >= 0 );
+        int k = iFirstAddPi, Length = strlen(p->pInits);
+        assert( iFirstAddPi >= 0 && iFirstFlop >= 0 );
         for ( i = 0; i < Length; i++ )
         if ( p->pInits[i] == 'x' || p->pInits[i] == 'X' )
         {
             char Buffer[1000];
-            sprintf( Buffer, "%s_init", (char *)Vec_PtrEntry(pNew->vNamesIn, iFirstAddPi+i) );
-            assert( Vec_PtrEntry(pNew->vNamesIn, iFirstAddPi-Length+i) == NULL );
-            Vec_PtrWriteEntry( pNew->vNamesIn, iFirstAddPi-Length+i, Abc_UtilStrsav(Buffer) );
+            sprintf( Buffer, "%s_init", (char *)Vec_PtrEntry(pNew->vNamesIn, iFirstFlop+i) );
+            assert( Vec_PtrEntry(pNew->vNamesIn, k) == NULL );
+            Vec_PtrWriteEntry( pNew->vNamesIn, k++, Abc_UtilStrsav(Buffer) );
             //printf( "Replacing NULL in position %d\n", iFirstAddPi-Length+i );
         }
+        assert( k == iFirstFlop );
     }
     // create output names
     pNew->vNamesOut = Vec_PtrAlloc( Gia_ManCoNum(pNew) );