Organizing commands for barbuf-aware flow.

12 files changed, 411 insertions, 156 deletions

diff --git a/src/aig/gia/giaFx.c b/src/aig/gia/giaFx.c
index 9879b636..9985e51d 100644
--- a/src/aig/gia/giaFx.c
+++ b/src/aig/gia/giaFx.c
@@ -96,6 +96,20 @@ int Gia_ManSopToAig( Gia_Man_t * p, char * pSop, Vec_Int_t * vLeaves )
         iSum = Abc_LitNot(iSum);
     return iSum;
 }
+int Gia_ManFactorGraph( Gia_Man_t * p, Dec_Graph_t * pFForm, Vec_Int_t * vLeaves )
+{
+    Dec_Node_t * pFFNode;
+    int i, Lit;
+    // assign fanins
+    Dec_GraphForEachLeaf( pFForm, pFFNode, i )
+    {
+        assert( Vec_IntEntry(vLeaves, i) >= 0 );
+        pFFNode->iFunc = Vec_IntEntry(vLeaves, i);
+    }
+    // perform strashing
+    Lit = Gia_ManGraphToAig( p, pFForm );
+    return Lit;
+}
 int Gia_ManFactorNode( Gia_Man_t * p, char * pSop, Vec_Int_t * vLeaves )
 {
     if ( Kit_PlaGetVarNum(pSop) == 0 )
@@ -103,18 +117,8 @@ int Gia_ManFactorNode( Gia_Man_t * p, char * pSop, Vec_Int_t * vLeaves )
     assert( Kit_PlaGetVarNum(pSop) == Vec_IntSize(vLeaves) );
     if ( Kit_PlaGetVarNum(pSop) > 2 && Kit_PlaGetCubeNum(pSop) > 1 )
     {
-        Dec_Graph_t * pFForm;
-        Dec_Node_t * pFFNode;
-        int i, Lit;
-        pFForm = Dec_Factor( pSop );
-        // assign fanins
-        Dec_GraphForEachLeaf( pFForm, pFFNode, i )
-        {
-            assert( Vec_IntEntry(vLeaves, i) >= 0 );
-            pFFNode->iFunc = Vec_IntEntry(vLeaves, i);
-        }
-        // perform strashing
-        Lit = Gia_ManGraphToAig( p, pFForm );
+        Dec_Graph_t * pFForm = Dec_Factor( pSop );
+        int Lit = Gia_ManFactorGraph( p, pFForm, vLeaves );
         Dec_GraphFree( pFForm );
         return Lit;
     }
diff --git a/src/base/cba/cba.h b/src/base/cba/cba.h
index fa2abc9f..cdf5cf29 100644
--- a/src/base/cba/cba.h
+++ b/src/base/cba/cba.h
@@ -21,7 +21,6 @@
 #ifndef ABC__base__cba__cba_h
 #define ABC__base__cba__cba_h
 
-
 ////////////////////////////////////////////////////////////////////////
 ///                          INCLUDES                                ///
 ////////////////////////////////////////////////////////////////////////
@@ -66,17 +65,15 @@ typedef enum {
     CBA_NODE_BUF,      // 3:  buffer
     CBA_NODE_INV,      // 4:  inverter
     CBA_NODE_AND,      // 5:  AND
-    CBA_NODE_AND00,    // 6:  AND00
-    CBA_NODE_AND01,    // 7:  AND01
-    CBA_NODE_AND10,    // 8:  AND10
-    CBA_NODE_NAND,     // 9:  NAND
-    CBA_NODE_OR,       // 10: OR
-    CBA_NODE_NOR,      // 11: NOR
-    CBA_NODE_XOR,      // 12: XOR
-    CBA_NODE_XNOR,     // 13  XNOR
-    CBA_NODE_MUX,      // 14: MUX
-    CBA_NODE_MAJ,      // 15: MAJ
-    CBA_NODE_UNKNOWN   // 16: unknown
+    CBA_NODE_NAND,     // 6:  NAND
+    CBA_NODE_OR,       // 7:  OR
+    CBA_NODE_NOR,      // 8:  NOR
+    CBA_NODE_XOR,      // 9:  XOR
+    CBA_NODE_XNOR,     // 10  XNOR
+    CBA_NODE_SHARP,    // 11: SHARP
+    CBA_NODE_MUX,      // 12: MUX
+    CBA_NODE_MAJ,      // 13: MAJ
+    CBA_NODE_UNKNOWN   // 14: unknown
 } Cba_NodeType_t; 
 
 
@@ -100,6 +97,8 @@ struct Cba_Man_t_
     Vec_Int_t *  vBuf2RootObj;
     Vec_Int_t *  vBuf2LeafNtk;
     Vec_Int_t *  vBuf2LeafObj;
+    void *       pMioLib;
+    void **      ppGraphs;
 };
 
 // network
@@ -123,7 +122,6 @@ struct Cba_Ntk_t_
     Vec_Int_t    vInstIds; // instance names  (used by parser to store instance name as NameId)       
     Vec_Int_t    vFanins;  // fanins          (used by parser to store fanin/fanout/range as NameId)  (node: handle; CO/BI fanin0)
     // attributes
-    Vec_Int_t    vBoxes;   // box objects
     Vec_Int_t    vNameIds; // original names as NameId  
     Vec_Int_t    vRanges;  // ranges as NameId
 };
@@ -145,9 +143,8 @@ static inline char *         Cba_NtkName( Cba_Ntk_t * p )                    { r
 static inline int            Cba_NtkObjNum( Cba_Ntk_t * p )                  { return Vec_IntSize(&p->vFanins);                                                            }
 static inline int            Cba_NtkPiNum( Cba_Ntk_t * p )                   { return Vec_IntSize(&p->vInputs);                                                            }
 static inline int            Cba_NtkPoNum( Cba_Ntk_t * p )                   { return Vec_IntSize(&p->vOutputs);                                                           }
-static inline int            Cba_NtkBoxNum( Cba_Ntk_t * p )                  { return Vec_IntSize(&p->vBoxes);                                                             }
-static inline int            Cba_NtkBoxNumCount( Cba_Ntk_t * p )             { return Vec_IntCountEntry(&p->vTypes, CBA_OBJ_BOX);                                          }
 static inline int            Cba_NtkNodeNum( Cba_Ntk_t * p )                 { return Vec_IntCountEntry(&p->vTypes, CBA_OBJ_NODE);                                         }
+static inline int            Cba_NtkBoxNum( Cba_Ntk_t * p )                  { return Vec_IntCountEntry(&p->vTypes, CBA_OBJ_BOX);                                          }
 
 static inline int            Cba_NtkPi( Cba_Ntk_t * p, int i )               { return Vec_IntEntry(&p->vInputs, i);                                                        }
 static inline int            Cba_NtkPo( Cba_Ntk_t * p, int i )               { return Vec_IntEntry(&p->vOutputs, i);                                                       }
@@ -218,7 +215,6 @@ static inline char *         Cba_ObjRangeStr( Cba_Ntk_t * p, int i )         { r
 ///                             ITERATORS                            ///
 ////////////////////////////////////////////////////////////////////////
 
-
 #define Cba_ManForEachNtk( p, pNtk, i )                                   \
     for ( i = 1; (i <= Cba_ManNtkNum(p)) && (((pNtk) = Cba_ManNtk(p, i)), 1); i++ ) 
 
@@ -230,8 +226,8 @@ static inline char *         Cba_ObjRangeStr( Cba_Ntk_t * p, int i )         { r
 #define Cba_NtkForEachObjType( p, Type, i )                               \
     for ( i = 0; (i < Cba_NtkObjNum(p))  && (((Type) = Cba_ObjType(p, i)), 1); i++ ) 
 
-#define Cba_NtkForEachBox( p, iObj, i )                                   \
-    for ( i = 0; (i < Cba_NtkBoxNum(p))  && (((iObj) = Vec_IntEntry(&p->vBoxes, i)), 1); i++ ) 
+#define Cba_NtkForEachBox( p, i )                                         \
+    for ( i = 0; (i < Cba_NtkObjNum(p)); i++ ) if ( Cba_ObjType(p, i) != CBA_OBJ_BOX ) {} else
 #define Cba_NtkForEachNode( p, i )                                        \
     for ( i = 0; (i < Cba_NtkObjNum(p)); i++ ) if ( Cba_ObjType(p, i) != CBA_OBJ_NODE ) {} else
 
@@ -337,8 +333,6 @@ static inline Cba_Man_t * Cba_ManClone( Cba_Man_t * pOld )
         pNtkNew = Cba_NtkAlloc( p, Cba_NtkName(pNtk) );
         Cba_ManFetchArray( p, &pNtkNew->vInputs,  Cba_NtkPiNum(pNtk) );
         Cba_ManFetchArray( p, &pNtkNew->vOutputs, Cba_NtkPoNum(pNtk) );
-        Cba_ManFetchArray( p, &pNtkNew->vBoxes,   Cba_NtkBoxNumCount(pNtk) );
-        Vec_IntShrink( &pNtkNew->vBoxes, 0 );
     }
     assert( Cba_ManNtkNum(p) == Cba_ManNtkNum(pOld) );
     return p;
@@ -398,9 +392,7 @@ static inline Cba_NodeType_t Ptr_SopToType( char * pSop )
     if ( !strcmp(pSop, "1 1\n") )        return CBA_NODE_BUF;
     if ( !strcmp(pSop, "0 1\n") )        return CBA_NODE_INV;
     if ( !strcmp(pSop, "11 1\n") )       return CBA_NODE_AND;
-    if ( !strcmp(pSop, "00 1\n") )       return CBA_NODE_AND00;
-    if ( !strcmp(pSop, "01 1\n") )       return CBA_NODE_AND01;
-    if ( !strcmp(pSop, "10 1\n") )       return CBA_NODE_AND10;
+    if ( !strcmp(pSop, "00 1\n") )       return CBA_NODE_NOR;
     if ( !strcmp(pSop, "00 0\n") )       return CBA_NODE_OR;
     if ( !strcmp(pSop, "-1 1\n1- 1\n") ) return CBA_NODE_OR;
     if ( !strcmp(pSop, "1- 1\n-1 1\n") ) return CBA_NODE_OR;
@@ -408,6 +400,7 @@ static inline Cba_NodeType_t Ptr_SopToType( char * pSop )
     if ( !strcmp(pSop, "10 1\n01 1\n") ) return CBA_NODE_XOR;
     if ( !strcmp(pSop, "11 1\n00 1\n") ) return CBA_NODE_XNOR;
     if ( !strcmp(pSop, "00 1\n11 1\n") ) return CBA_NODE_XNOR;
+    if ( !strcmp(pSop, "10 1\n") )       return CBA_NODE_SHARP;
     assert( 0 );
     return CBA_NODE_NONE;
 }
@@ -418,9 +411,6 @@ static inline char * Ptr_TypeToName( Cba_NodeType_t Type )
     if ( Type == CBA_NODE_BUF )   return "buf";
     if ( Type == CBA_NODE_INV )   return "not";
     if ( Type == CBA_NODE_AND )   return "and";
-    if ( Type == CBA_NODE_AND00 ) return "and00";
-    if ( Type == CBA_NODE_AND01 ) return "and01";
-    if ( Type == CBA_NODE_AND10 ) return "and10";
     if ( Type == CBA_NODE_NAND )  return "nand";
     if ( Type == CBA_NODE_OR )    return "or";
     if ( Type == CBA_NODE_NOR )   return "nor";
@@ -428,6 +418,7 @@ static inline char * Ptr_TypeToName( Cba_NodeType_t Type )
     if ( Type == CBA_NODE_XNOR )  return "xnor";
     if ( Type == CBA_NODE_MUX )   return "mux";
     if ( Type == CBA_NODE_MAJ )   return "maj";
+    if ( Type == CBA_NODE_SHARP ) return "sharp";
     assert( 0 );
     return "???";
 }
@@ -438,14 +429,12 @@ static inline char * Ptr_TypeToSop( Cba_NodeType_t Type )
     if ( Type == CBA_NODE_BUF )   return "1 1\n";
     if ( Type == CBA_NODE_INV )   return "0 1\n";
     if ( Type == CBA_NODE_AND )   return "11 1\n";
-    if ( Type == CBA_NODE_AND00 ) return "00 1\n";
-    if ( Type == CBA_NODE_AND01 ) return "01 1\n";
-    if ( Type == CBA_NODE_AND10 ) return "10 1\n";
     if ( Type == CBA_NODE_NAND )  return "11 0\n";
     if ( Type == CBA_NODE_OR )    return "00 0\n";
     if ( Type == CBA_NODE_NOR )   return "00 1\n";
     if ( Type == CBA_NODE_XOR )   return "01 1\n10 1\n";
     if ( Type == CBA_NODE_XNOR )  return "00 1\n11 1\n";
+    if ( Type == CBA_NODE_SHARP ) return "10 1\n";
     if ( Type == CBA_NODE_MUX )   return "11- 1\n0-1 1\n";
     if ( Type == CBA_NODE_MAJ )   return "11- 1\n1-1 1\n-11 1\n";
     assert( 0 );
@@ -462,7 +451,7 @@ extern Cba_Man_t * Cba_ManBuild( Cba_Man_t * p );
 /*=== cbaReadBlif.c =========================================================*/
 extern Cba_Man_t * Cba_PrsReadBlif( char * pFileName );
 /*=== cbaReadVer.c ==========================================================*/
-extern Cba_Man_t * Cba_PrsReadVerilog( char * pFileName );
+extern Cba_Man_t * Cba_PrsReadVerilog( char * pFileName, int fBinary );
 /*=== cbaWriteBlif.c ========================================================*/
 extern void        Cba_PrsWriteBlif( char * pFileName, Cba_Man_t * p );
 extern void        Cba_ManWriteBlif( char * pFileName, Cba_Man_t * p );
diff --git a/src/base/cba/cbaBlast.c b/src/base/cba/cbaBlast.c
index 808f3035..45ced7d2 100644
--- a/src/base/cba/cbaBlast.c
+++ b/src/base/cba/cbaBlast.c
@@ -20,6 +20,8 @@
 
 #include "cba.h"
 #include "base/abc/abc.h"
+#include "map/mio/mio.h"
+#include "bool/dec/dec.h"
 
 ABC_NAMESPACE_IMPL_START
 
@@ -42,6 +44,44 @@ ABC_NAMESPACE_IMPL_START
   SeeAlso     []
 
 ***********************************************************************/
+void Cba_ManPrepareGates( Cba_Man_t * p )
+{
+    int i;
+    if ( p->pMioLib == NULL )
+        return;
+    assert( p->ppGraphs == NULL );
+    p->ppGraphs = ABC_ALLOC( Dec_Graph_t *, Abc_NamObjNumMax(p->pFuncs) );
+    p->ppGraphs[0] = NULL;
+    for ( i = 1; i < Abc_NamObjNumMax(p->pFuncs); i++ )
+    {
+        char * pGateName = Abc_NamStr( p->pFuncs, i );
+        Mio_Gate_t * pGate = Mio_LibraryReadGateByName( (Mio_Library_t *)p->pMioLib, pGateName, NULL );
+        char * pSop = Mio_GateReadSop( pGate );
+        p->ppGraphs[i] = Dec_Factor( pSop );
+    }
+}
+void Cba_ManUndoGates( Cba_Man_t * p )
+{
+    int i;
+    if ( p->pMioLib == NULL )
+        return;
+    for ( i = 1; i < Abc_NamObjNumMax(p->pFuncs); i++ )
+        Dec_GraphFree( p->ppGraphs[i] );
+    ABC_FREE( p->ppGraphs );
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
 int Cba_ManAddBarbuf( Gia_Man_t * pNew, int iRes, Cba_Man_t * p, int iLNtk, int iLObj, int iRNtk, int iRObj, Vec_Int_t * vMap )
 {
     int iBufLit, iIdLit;
@@ -86,6 +126,17 @@ int Cba_ManExtract_rec( Gia_Man_t * pNew, Cba_Ntk_t * p, int i, int fBuffers, Ve
         if ( fBuffers )
             iRes = Cba_ManAddBarbuf( pNew, iRes, p->pDesign, Cba_NtkId(p), i, Cba_NtkId(pHost), iObj, vMap );
     }
+    else if ( Cba_ObjIsNode(p, i) && p->pDesign->ppGraphs )
+    {
+        extern int Gia_ManFactorGraph( Gia_Man_t * p, Dec_Graph_t * pFForm, Vec_Int_t * vLeaves );
+        Dec_Graph_t * pGraph = (Dec_Graph_t *)p->pDesign->ppGraphs[Cba_ObjFuncId(p, i)];
+        int k, pLits[32], * pFanins = Cba_ObjFaninArray(p, i);
+        Vec_Int_t Leaves = { pFanins[0], pFanins[0], pLits };
+        assert( pFanins[0] < 32 );
+        for ( k = 0; k < pFanins[0]; k++ )
+            pLits[k] = Cba_ManExtract_rec( pNew, p, pFanins[k+1], fBuffers, vMap );
+        return Gia_ManFactorGraph( pNew, pGraph, &Leaves );
+    }
     else if ( Cba_ObjIsNode(p, i) )
     {
         int * pFanins = Cba_ObjFaninArray(p, i);
@@ -115,10 +166,14 @@ int Cba_ManExtract_rec( Gia_Man_t * pNew, Cba_Ntk_t * p, int i, int fBuffers, Ve
                 iRes = Gia_ManHashAnd( pNew, pLits[0], pLits[1] );
             else if ( Type == CBA_NODE_OR )
                 iRes = Gia_ManHashOr( pNew, pLits[0], pLits[1] );
+            else if ( Type == CBA_NODE_NOR )
+                iRes = Abc_LitNot( Gia_ManHashOr( pNew, pLits[0], pLits[1] ) );
             else if ( Type == CBA_NODE_XOR )
                 iRes = Gia_ManHashXor( pNew, pLits[0], pLits[1] );
             else if ( Type == CBA_NODE_XNOR )
                 iRes = Abc_LitNot( Gia_ManHashXor( pNew, pLits[0], pLits[1] ) );
+            else if ( Type == CBA_NODE_SHARP )
+                iRes = Gia_ManHashAnd( pNew, pLits[0], Abc_LitNot(pLits[1]) );
             else assert( 0 );
         }
     }
@@ -155,8 +210,10 @@ Gia_Man_t * Cba_ManExtract( Cba_Man_t * p, int fBuffers, int fVerbose )
     Gia_ManHashAlloc( pNew );
     pNew->vBarBufs = Vec_IntAlloc( 10000 );
     vMap = Vec_IntStartFull( 10000 );
+    Cba_ManPrepareGates( p );
     Cba_NtkForEachPo( pRoot, iObj, i )
         Cba_ManExtract_rec( pNew, pRoot, iObj, fBuffers, vMap );
+    Cba_ManUndoGates( p );
     Vec_IntFreeP( &vMap );
     Gia_ManHashStop( pNew );
 
@@ -187,8 +244,8 @@ Vec_Int_t * Cba_ManCountGia( Cba_Man_t * p, Gia_Man_t * pGia, int fAlwaysAdd )
 {
     Cba_Ntk_t * pNtk;
     Gia_Obj_t * pObj; 
-    int i, k, iBox, Count = 0;
-    Vec_Int_t * vNtkSizes = Vec_IntStart( Cba_ManNtkNum(p) + 1 );
+    int i, iBox, Count = 0;
+    Vec_Int_t * vNtkSizes  = Vec_IntStart( Cba_ManNtkNum(p) + 1 );
     Vec_Int_t * vDrivenCos = Vec_IntStart( Cba_ManNtkNum(p) + 1 );
     assert( Vec_IntSize(p->vBuf2LeafNtk) == Gia_ManBufNum(pGia) );
     // assing for each GIA node, the network it belongs to and count nodes for all networks
@@ -222,7 +279,7 @@ Vec_Int_t * Cba_ManCountGia( Cba_Man_t * p, Gia_Man_t * pGia, int fAlwaysAdd )
     Cba_ManForEachNtk( p, pNtk, i )
     {
         Count = Cba_NtkPiNum(pNtk) + 2 * Cba_NtkPoNum(pNtk) - (fAlwaysAdd ? 0 : Vec_IntEntry(vDrivenCos, i));
-        Cba_NtkForEachBox( pNtk, iBox, k )
+        Cba_NtkForEachBox( pNtk, iBox )
             Count += Cba_ObjBoxSize(pNtk, iBox) + Cba_ObjBoxBiNum(pNtk, iBox);
         Vec_IntAddToEntry( vNtkSizes, i, Count );
     }
@@ -249,21 +306,21 @@ void Cba_ManRemapBarbufs( Cba_Man_t * pNew, Cba_Man_t * p )
         Vec_IntWriteEntry( pNew->vBuf2RootObj, i, Cba_NtkCopy(pNtk, Entry) );
     }
 }
-void Cba_NtkCreateAndConnectBuffer( Gia_Man_t * pGia, Gia_Obj_t * pObj, Cba_Ntk_t * pNtk, int iTerm )
+void Cba_NtkCreateAndConnectBuffer( Gia_Man_t * pGia, Gia_Obj_t * pObj, Cba_Ntk_t * p, int iTerm )
 {
-    Vec_IntWriteEntry( &pNtk->vTypes, pNtk->nObjs, CBA_OBJ_NODE );
-    if ( !pGia || !Gia_ObjFaninId0p(pGia, pObj) )
+    Vec_IntWriteEntry( &p->vTypes, p->nObjs, CBA_OBJ_NODE );
+    if ( pGia && Gia_ObjFaninId0p(pGia, pObj) > 0 )
     {
-        Vec_IntWriteEntry( &pNtk->vFuncs,  pNtk->nObjs, pGia && Gia_ObjFaninC0(pObj) ? CBA_NODE_C1 : CBA_NODE_C0 );
-        Vec_IntWriteEntry( &pNtk->vFanins, pNtk->nObjs, Cba_ManHandleBuffer(pNtk->pDesign, -1) );
+        Vec_IntWriteEntry( &p->vFuncs,  p->nObjs, Gia_ObjFaninC0(pObj) ? CBA_NODE_INV : CBA_NODE_BUF );
+        Vec_IntWriteEntry( &p->vFanins, p->nObjs, Cba_ManHandleBuffer(p->pDesign, Gia_ObjFanin0(pObj)->Value) );
     }
     else
     {
-        Vec_IntWriteEntry( &pNtk->vFuncs,  pNtk->nObjs, Gia_ObjFaninC0(pObj) ? CBA_NODE_INV : CBA_NODE_BUF );
-        Vec_IntWriteEntry( &pNtk->vFanins, pNtk->nObjs, Cba_ManHandleBuffer(pNtk->pDesign, Gia_ObjFanin0(pObj)->Value) );
+        Vec_IntWriteEntry( &p->vFuncs,  p->nObjs, pGia && Gia_ObjFaninC0(pObj) ? CBA_NODE_C1 : CBA_NODE_C0 );
+        Vec_IntWriteEntry( &p->vFanins, p->nObjs, Cba_ManHandleBuffer(p->pDesign, -1) );
     }
-    Vec_IntWriteEntry( &pNtk->vNameIds, pNtk->nObjs, Cba_ObjNameId(pNtk, iTerm) );
-    Vec_IntWriteEntry( &pNtk->vFanins, iTerm, pNtk->nObjs++ );
+    Vec_IntWriteEntry( &p->vNameIds, p->nObjs, Cba_ObjNameId(p, iTerm) );
+    Vec_IntWriteEntry( &p->vFanins, iTerm, p->nObjs++ );
 }
 void Cba_NtkInsertGia( Cba_Man_t * p, Gia_Man_t * pGia )
 {
@@ -288,17 +345,22 @@ void Cba_NtkInsertGia( Cba_Man_t * p, Gia_Man_t * pGia )
         }
         else
         {
+            int iLit0 = Gia_ObjFanin0(pObj)->Value;
+            int iLit1 = Gia_ObjFanin1(pObj)->Value;
             Cba_NodeType_t Type;
             pNtk = Cba_ManNtk( p, pObj->Value );
             if ( Gia_ObjFaninC0(pObj) && Gia_ObjFaninC1(pObj) )
-                Type = CBA_NODE_AND00;
-            else if ( Gia_ObjFaninC0(pObj) )
-                Type = CBA_NODE_AND01;
+                Type = CBA_NODE_NOR;
             else if ( Gia_ObjFaninC1(pObj) )
-                Type = CBA_NODE_AND10;
+                Type = CBA_NODE_SHARP;
+            else if ( Gia_ObjFaninC0(pObj) )
+            {
+                Type = CBA_NODE_SHARP;
+                ABC_SWAP( int, iLit0, iLit1 );
+            }
             else 
                 Type = CBA_NODE_AND;
-            Vec_IntFillTwo( vTemp, 2, Gia_ObjFanin0(pObj)->Value, Gia_ObjFanin1(pObj)->Value );
+            Vec_IntFillTwo( vTemp, 2, iLit0, iLit1 );
             Vec_IntWriteEntry( &pNtk->vTypes,  pNtk->nObjs, CBA_OBJ_NODE );
             Vec_IntWriteEntry( &pNtk->vFuncs,  pNtk->nObjs, Type );
             Vec_IntWriteEntry( &pNtk->vFanins, pNtk->nObjs, Cba_ManHandleArray(p, vTemp) );
@@ -311,7 +373,7 @@ void Cba_NtkInsertGia( Cba_Man_t * p, Gia_Man_t * pGia )
     // create constant 0 drivers for COs without barbufs
     Cba_ManForEachNtk( p, pNtk, i )
     {
-        Cba_NtkForEachBox( pNtk, iBox, k )
+        Cba_NtkForEachBox( pNtk, iBox )
             Cba_BoxForEachBi( pNtk, iBox, iTerm, j )
                 if ( Cba_ObjFanin0(pNtk, iTerm) == -1 )
                     Cba_NtkCreateAndConnectBuffer( NULL, NULL, pNtk, iTerm );
@@ -333,7 +395,6 @@ Cba_Man_t * Cba_ManInsertGia( Cba_Man_t * p, Gia_Man_t * pGia )
     Cba_NtkInsertGia( pNew, pGia );
     Vec_IntFree( vNtkSizes );
     return pNew;
-
 }
 
 /**Function*************************************************************
@@ -368,10 +429,149 @@ Cba_Man_t * Cba_ManBlastTest( Cba_Man_t * p )
   SeeAlso     []
 
 ***********************************************************************/
+static inline int Abc_NodeIsSeriousGate( Abc_Obj_t * p )
+{
+    return Abc_ObjIsNode(p) && (Abc_ObjFaninNum(p) > 0);
+}
+Vec_Int_t * Cba_ManCountAbc( Cba_Man_t * p, Abc_Ntk_t * pNtk, int fAlwaysAdd )
+{
+    Cba_Ntk_t * pCbaNtk;
+    Abc_Obj_t * pObj, * pFanin; 
+    int i, k, iBox, Count = 0;
+    Vec_Int_t * vNtkSizes  = Vec_IntStart( Cba_ManNtkNum(p) + 1 );
+    Vec_Int_t * vDrivenCos = Vec_IntStart( Cba_ManNtkNum(p) + 1 );
+    assert( Vec_IntSize(p->vBuf2LeafNtk) == pNtk->nBarBufs2 );
+    // assing for each GIA node, the network it belongs to and count nodes for all networks
+    Abc_NtkForEachPi( pNtk, pObj, i )
+        pObj->iTemp = 1;
+    Abc_NtkForEachNode( pNtk, pObj, i )
+    {
+        if ( Abc_ObjIsBarBuf(pObj) )
+        {
+            if ( Abc_NodeIsSeriousGate(Abc_ObjFanin0(pObj)) )
+                Vec_IntAddToEntry( vDrivenCos, Abc_ObjFanin0(pObj)->iTemp, 1 );
+            pObj->iTemp = Vec_IntEntry( p->vBuf2LeafNtk, Count++ );
+        }
+        else if ( Abc_NodeIsSeriousGate(pObj) )
+        {
+            pObj->iTemp = Abc_ObjFanin0(pObj)->iTemp;
+            Abc_ObjForEachFanin( pObj, pFanin, k )
+                assert( pObj->iTemp == pFanin->iTemp );
+            Vec_IntAddToEntry( vNtkSizes, pObj->iTemp, 1 );
+        }
+    }
+    assert( Count == pNtk->nBarBufs2 );
+    Abc_NtkForEachPo( pNtk, pObj, i )
+    {
+        assert( Abc_ObjFanin0(pObj)->iTemp == 1 );
+        pObj->iTemp = Abc_ObjFanin0(pObj)->iTemp;
+        if ( Abc_NodeIsSeriousGate(Abc_ObjFanin0(pObj)) )
+            Vec_IntAddToEntry( vDrivenCos, pObj->iTemp, 1 );
+    }
+    // for each network, count the total number of COs
+    Cba_ManForEachNtk( p, pCbaNtk, i )
+    {
+        Count = Cba_NtkPiNum(pCbaNtk) + 2 * Cba_NtkPoNum(pCbaNtk) - (fAlwaysAdd ? 0 : Vec_IntEntry(vDrivenCos, i));
+        Cba_NtkForEachBox( pCbaNtk, iBox )
+            Count += Cba_ObjBoxSize(pCbaNtk, iBox) + Cba_ObjBoxBiNum(pCbaNtk, iBox);
+        Vec_IntAddToEntry( vNtkSizes, i, Count );
+    }
+    Vec_IntFree( vDrivenCos );
+    return vNtkSizes;
+}
+void Cba_NtkCreateOrConnectFanin( Abc_Ntk_t * pNtk, Abc_Obj_t * pFanin, Cba_Ntk_t * p, int iTerm )
+{
+    if ( pNtk && Abc_NodeIsSeriousGate(pFanin) )
+    {
+        Vec_IntWriteEntry( &p->vNameIds, pFanin->iTemp, Cba_ObjNameId(p, iTerm) );
+        Vec_IntWriteEntry( &p->vFanins,  iTerm,         pFanin->iTemp );
+    }
+    else
+    {
+        assert( !pFanin || Abc_NodeIsConst0(pFanin) || Abc_NodeIsConst1(pFanin) );
+        Vec_IntWriteEntry( &p->vTypes,   p->nObjs, CBA_OBJ_NODE );
+        Vec_IntWriteEntry( &p->vFuncs,   p->nObjs, pNtk && Abc_NodeIsConst1(pFanin) ? 2 : 1 ); // assuming elem gates are added first
+        Vec_IntWriteEntry( &p->vFanins,  p->nObjs, Cba_ManHandleBuffer(p->pDesign, -1) );
+        Vec_IntWriteEntry( &p->vNameIds, p->nObjs, Cba_ObjNameId(p, iTerm) );
+        Vec_IntWriteEntry( &p->vFanins,  iTerm,    p->nObjs++ );
+    }
+}
+void Cba_NtkPrepareLibrary( Cba_Man_t * p, Mio_Library_t * pLib )
+{
+    Mio_Gate_t * pGate;
+    Mio_Gate_t * pGate0 = Mio_LibraryReadConst0( pLib );
+    Mio_Gate_t * pGate1 = Mio_LibraryReadConst1( pLib );
+    assert( Abc_NamObjNumMax(p->pFuncs) == 1 );
+    Abc_NamStrFindOrAdd( p->pFuncs, Mio_GateReadName(pGate0), NULL );
+    Abc_NamStrFindOrAdd( p->pFuncs, Mio_GateReadName(pGate1), NULL );
+    assert( Abc_NamObjNumMax(p->pFuncs) == 3 );
+    Mio_LibraryForEachGate( pLib, pGate )
+        if ( pGate != pGate0 && pGate != pGate1 )
+            Abc_NamStrFindOrAdd( p->pFuncs, Mio_GateReadName(pGate), NULL );
+    assert( Abc_NamObjNumMax(p->pFuncs) > 1 );
+}
+void Cba_NtkInsertNtk( Cba_Man_t * p, Abc_Ntk_t * pNtk )
+{
+    Cba_Ntk_t * pCbaNtk, * pRoot = Cba_ManRoot( p );
+    Vec_Int_t * vTemp = Vec_IntAlloc( 100 );
+    int i, j, k, iBox, iTerm, Count = 0;
+    Abc_Obj_t * pObj, * pFanin;
+    assert( Abc_NtkHasMapping(pNtk) );
+    Cba_NtkPrepareLibrary( p, (Mio_Library_t *)pNtk->pManFunc );
+
+    Abc_NtkForEachPi( pNtk, pObj, i )
+        pObj->iTemp = Cba_NtkPi( pRoot, i );
+    Abc_NtkForEachNode( pNtk, pObj, i )
+    {
+        if ( Abc_ObjIsBarBuf(pObj) )
+        {
+            pCbaNtk = Cba_ManNtk( p, Vec_IntEntry(p->vBuf2RootNtk, Count) );
+            iTerm = Vec_IntEntry( p->vBuf2RootObj, Count );
+            assert( Cba_ObjIsCo(pCbaNtk, iTerm) );
+            Cba_NtkCreateOrConnectFanin( pNtk, Abc_ObjFanin0(pObj), pCbaNtk, iTerm );
+            // prepare leaf
+            pObj->iTemp = Vec_IntEntry( p->vBuf2LeafObj, Count++ );
+        }
+        else if ( Abc_NodeIsSeriousGate(pObj) )
+        {
+            Vec_IntClear( vTemp );
+            Abc_ObjForEachFanin( pObj, pFanin, k )
+                Vec_IntPush( vTemp, pFanin->iTemp );
+            pCbaNtk = Cba_ManNtk( p, pObj->iTemp );
+            Vec_IntWriteEntry( &pCbaNtk->vTypes,  pCbaNtk->nObjs, CBA_OBJ_NODE );
+            Vec_IntWriteEntry( &pCbaNtk->vFuncs,  pCbaNtk->nObjs, Abc_NamStrFind(p->pFuncs, Mio_GateReadName((Mio_Gate_t *)pObj->pData)) );
+            Vec_IntWriteEntry( &pCbaNtk->vFanins, pCbaNtk->nObjs, Cba_ManHandleArray(p, vTemp) );
+            pObj->iTemp = pCbaNtk->nObjs++;
+        }
+    }
+    assert( Count == pNtk->nBarBufs2 );
+    Vec_IntFree( vTemp );
+
+    // create constant 0 drivers for COs without barbufs
+    Cba_ManForEachNtk( p, pCbaNtk, i )
+    {
+        Cba_NtkForEachBox( pCbaNtk, iBox )
+            Cba_BoxForEachBi( pCbaNtk, iBox, iTerm, j )
+                if ( Cba_ObjFanin0(pCbaNtk, iTerm) == -1 )
+                    Cba_NtkCreateOrConnectFanin( NULL, NULL, pCbaNtk, iTerm );
+        Cba_NtkForEachPo( pCbaNtk, iTerm, k )
+            if ( pCbaNtk != pRoot && Cba_ObjFanin0(pCbaNtk, iTerm) == -1 )
+                Cba_NtkCreateOrConnectFanin( NULL, NULL, pCbaNtk, iTerm );
+    }
+    // create node and connect POs
+    Abc_NtkForEachPo( pNtk, pObj, i )
+        Cba_NtkCreateOrConnectFanin( pNtk, Abc_ObjFanin0(pObj), pRoot, Cba_NtkPo(pRoot, i) );
+    Cba_ManForEachNtk( p, pCbaNtk, i )
+        assert( Cba_NtkObjNum(pCbaNtk) == pCbaNtk->nObjs );
+}
 void * Cba_ManInsertAbc( Cba_Man_t * p, void * pAbc )
 {
-    Abc_Ntk_t * pNtk = pAbc;
-    Cba_Man_t * pNew = NULL;
+    Abc_Ntk_t * pNtk = (Abc_Ntk_t *)pAbc;
+    Vec_Int_t * vNtkSizes = Cba_ManCountAbc( p, pNtk, 0 );
+    Cba_Man_t * pNew = Cba_ManDupStart( p, vNtkSizes );
+    Cba_ManRemapBarbufs( pNew, p );
+    Cba_NtkInsertNtk( pNew, pNtk );
+    Vec_IntFree( vNtkSizes );
     return pNew;
 }
 
diff --git a/src/base/cba/cbaBuild.c b/src/base/cba/cbaBuild.c
index ddacc409..86d60983 100644
--- a/src/base/cba/cbaBuild.c
+++ b/src/base/cba/cbaBuild.c
@@ -73,12 +73,9 @@ void Cba_BoxRemap( Cba_Ntk_t * pNtk, int iBox, Vec_Int_t * vMap )
 }
 void Cba_NtkRemapBoxes( Cba_Ntk_t * pNtk, Vec_Int_t * vMap )
 {
-    int Type, iBox;
-    Cba_NtkForEachObjType( pNtk, Type, iBox )
-        if ( Type == CBA_OBJ_BOX )
-            Cba_BoxRemap( pNtk, iBox, vMap );
-    Vec_IntForEachEntry( vMap, Type, iBox )
-        assert( Type == -1 );
+    int iBox;
+    Cba_NtkForEachBox( pNtk, iBox )
+        Cba_BoxRemap( pNtk, iBox, vMap );
 }
 // create maps of NameId and boxes
 void Cba_NtkFindNonDriven( Cba_Ntk_t * pNtk, Vec_Int_t * vMap, int nObjCount, Vec_Int_t * vNonDriven )
@@ -164,7 +161,7 @@ int Cba_NtkCreateMap( Cba_Ntk_t * pNtk, Vec_Int_t * vMap, Vec_Int_t * vBoxes, Ve
     nObjCount += Vec_IntSize(vNonDriven) + Cba_NtkPoNum(pNtk);
     return nObjCount;
 }
-Cba_Ntk_t * Cba_NtkBuild( Cba_Man_t * pNew, Cba_Ntk_t * pNtk, Vec_Int_t * vMap, Vec_Int_t * vNonDriven, Vec_Int_t * vTemp, int nObjCount )
+Cba_Ntk_t * Cba_NtkBuild( Cba_Man_t * pNew, Cba_Ntk_t * pNtk, Vec_Int_t * vMap, Vec_Int_t * vBoxes, Vec_Int_t * vNonDriven, Vec_Int_t * vTemp, int nObjCount )
 {
     Vec_Int_t * vFanins;
     Cba_Ntk_t * pNtkNew, * pNtkBox;
@@ -202,7 +199,7 @@ Cba_Ntk_t * Cba_NtkBuild( Cba_Man_t * pNew, Cba_Ntk_t * pNtk, Vec_Int_t * vMap,
         }
         else if ( Type == CBA_OBJ_BOX )
         {
-            ObjId = Vec_IntEntry( &pNtkNew->vBoxes, nBoxes++ );
+            ObjId = Vec_IntEntry( vBoxes, nBoxes++ );
             pNtkBox = Cba_ObjBoxModel( pNtk, iObj );
             // collect fanins
             Vec_IntFill( vTemp, Cba_NtkPiNum(pNtkBox), -1 );
@@ -243,7 +240,7 @@ Cba_Ntk_t * Cba_NtkBuild( Cba_Man_t * pNew, Cba_Ntk_t * pNtk, Vec_Int_t * vMap,
             }
         }
     }
-    assert( nBoxes == Vec_IntSize(&pNtkNew->vBoxes) );
+    assert( nBoxes == Vec_IntSize(vBoxes) );
     // add constants for nondriven nodes
     Vec_IntForEachEntry( vNonDriven, NameId, i )
     {
@@ -309,6 +306,7 @@ Cba_Man_t * Cba_ManBuild( Cba_Man_t * p )
 {
     Cba_Man_t * pNew   = Cba_ManClone( p );
     Vec_Int_t * vMap   = Vec_IntStartFull( Abc_NamObjNumMax(p->pNames) + 1 );
+    Vec_Int_t * vBoxes = Vec_IntAlloc( 1000 );
     Vec_Int_t * vNonDr = Vec_IntAlloc( 1000 );
     Vec_Int_t * vTemp  = Vec_IntAlloc( 1000 );
     Cba_Ntk_t * pNtk;  
@@ -317,11 +315,13 @@ Cba_Man_t * Cba_ManBuild( Cba_Man_t * p )
     Cba_ManForEachNtk( p, pNtk, i )
     {
         Cba_NtkRemapBoxes( pNtk, vMap );
-        nObjs = Cba_NtkCreateMap( pNtk, vMap, &Cba_ManNtk(pNew, i)->vBoxes, vNonDr );
-        Cba_NtkBuild( pNew, pNtk, vMap, vNonDr, vTemp, nObjs );
+        nObjs = Cba_NtkCreateMap( pNtk, vMap, vBoxes, vNonDr );
+        Cba_NtkBuild( pNew, pNtk, vMap, vBoxes, vNonDr, vTemp, nObjs );
         Cba_NtkCleanMap( pNtk, vMap );
     }
+    assert( Vec_IntCountEntry(vMap, -1) == Vec_IntSize(vMap) );
     Vec_IntFree( vMap );
+    Vec_IntFree( vBoxes );
     Vec_IntFree( vNonDr );
     Vec_IntFree( vTemp );
     return pNew;
diff --git a/src/base/cba/cbaCom.c b/src/base/cba/cbaCom.c
index 329f1b0a..73e69f5f 100644
--- a/src/base/cba/cbaCom.c
+++ b/src/base/cba/cbaCom.c
@@ -149,7 +149,7 @@ int Cba_CommandRead( Abc_Frame_t * pAbc, int argc, char ** argv )
     else if ( !strcmp( Extra_FileNameExtension(pFileName), "blif" )  )
         p = Cba_PrsReadBlif( pFileName );
     else if ( !strcmp( Extra_FileNameExtension(pFileName), "v" )  )
-        p = Cba_PrsReadVerilog( pFileName );
+        p = Cba_PrsReadVerilog( pFileName, 1 );
     else assert( 0 );
     p = Cba_ManBuild( pTemp = p );
     Cba_ManFree( pTemp );
@@ -465,7 +465,7 @@ int Cba_CommandCec( Abc_Frame_t * pAbc, int argc, char ** argv )
     if ( !strcmp( Extra_FileNameExtension(FileName), "blif" )  )
         p = Cba_PrsReadBlif( FileName );
     else if ( !strcmp( Extra_FileNameExtension(FileName), "v" )  )
-        p = Cba_PrsReadVerilog( FileName );
+        p = Cba_PrsReadVerilog( FileName, 1 );
     else assert( 0 );
     p = Cba_ManBuild( pTemp = p );
     Cba_ManFree( pTemp );
diff --git a/src/base/cba/cbaNtk.c b/src/base/cba/cbaNtk.c
index af48f227..257d39bb 100644
--- a/src/base/cba/cbaNtk.c
+++ b/src/base/cba/cbaNtk.c
@@ -43,11 +43,11 @@ ABC_NAMESPACE_IMPL_START
 ***********************************************************************/
 void Cba_ManAssignInternNamesNtk( Cba_Ntk_t * p )
 {
-    int i, Type, NameId;
+    int i, NameId;
     int nDigits = Abc_Base10Log( Cba_NtkObjNum(p) );
-    Cba_NtkForEachObjType( p, Type, i )
+    Cba_NtkForEachNode( p, i )
     {
-        if ( Type == CBA_OBJ_NODE && Cba_ObjNameId(p, i) == -1 )
+        if ( Cba_ObjNameId(p, i) == -1 )
         {
             char Buffer[100];
             sprintf( Buffer, "%s%0*d", "_n_", nDigits, i );
@@ -109,28 +109,25 @@ void Cba_ObjDupStart( Cba_Ntk_t * pNew, Cba_Ntk_t * p, int iObj )
     Vec_IntWriteEntry( &pNew->vNameIds, pNew->nObjs, Cba_ObjNameId(p, iObj) );
     if ( Cba_ObjIsBox(p, iObj) )
         Cba_NtkSetHost( Cba_ObjBoxModel(pNew, pNew->nObjs), Cba_NtkId(pNew), pNew->nObjs );
-    if ( Cba_ObjIsBox(p, iObj) )
-        Vec_IntPush( &pNew->vBoxes, pNew->nObjs );
     Cba_NtkSetCopy( p, iObj, pNew->nObjs++ );
 }
 void Cba_NtkDupStart( Cba_Ntk_t * pNew, Cba_Ntk_t * p )
 {
-    int i, k, iObj, iTerm;
-    assert( Vec_IntSize(&pNew->vBoxes) == 0 );
+    int i, iObj, iTerm;
     pNew->nObjs = 0;
     Cba_NtkForEachPi( p, iObj, i )
         Cba_ObjDupStart( pNew, p, iObj );
     Cba_NtkForEachPo( p, iObj, i )
         Cba_ObjDupStart( pNew, p, iObj );
-    Cba_NtkForEachBox( p, iObj, i )
+    Cba_NtkForEachBox( p, iObj )
     {
-        Cba_BoxForEachBi( p, iObj, iTerm, k )
+        Cba_BoxForEachBi( p, iObj, iTerm, i )
             Cba_ObjDupStart( pNew, p, iTerm );
         Cba_ObjDupStart( pNew, p, iObj );
-        Cba_BoxForEachBo( p, iObj, iTerm, k )
+        Cba_BoxForEachBo( p, iObj, iTerm, i )
             Cba_ObjDupStart( pNew, p, iTerm );
         // connect box outputs to boxes
-        Cba_BoxForEachBo( p, iObj, iTerm, k )
+        Cba_BoxForEachBo( p, iObj, iTerm, i )
             Vec_IntWriteEntry( &pNew->vFanins, Cba_NtkCopy(p, iTerm), Cba_NtkCopy(p, Cba_ObjFanin0(p, iTerm)) );
     }
     assert( Cba_NtkBoxNum(p) == Cba_NtkBoxNum(pNew) );
diff --git a/src/base/cba/cbaPrs.h b/src/base/cba/cbaPrs.h
index 12a2c065..222a7534 100644
--- a/src/base/cba/cbaPrs.h
+++ b/src/base/cba/cbaPrs.h
@@ -197,17 +197,15 @@ static inline void Cba_PrsFree( Cba_Prs_t * p )
 }
 static inline void Cba_PrsRemapBoxModels( Cba_Man_t * p )
 {
-    Cba_Ntk_t * pNtk; 
-    int i, Type, iObj;
+    Cba_Ntk_t * pNtk; int i, iBox;
     Cba_ManForEachNtk( p, pNtk, i )
-        Cba_NtkForEachObjType( pNtk, Type, iObj )
-            if ( Type == CBA_OBJ_BOX )
-            {
-                char * pName = Abc_NamStr( p->pNames, Cba_ObjFuncId(pNtk, iObj) );
-                int iModelId = Abc_NamStrFind( p->pModels, pName );
-                assert( iModelId > 0 );
-                Vec_IntWriteEntry( &pNtk->vFuncs, iObj, iModelId );
-            }
+        Cba_NtkForEachBox( pNtk, iBox )
+        {
+            char * pName = Abc_NamStr( p->pNames, Cba_ObjFuncId(pNtk, iBox) );
+            int iModelId = Abc_NamStrFind( p->pModels, pName );
+            assert( iModelId > 0 );
+            Vec_IntWriteEntry( &pNtk->vFuncs, iBox, iModelId );
+        }
 }
 
 ////////////////////////////////////////////////////////////////////////
diff --git a/src/base/cba/cbaReadBlif.c b/src/base/cba/cbaReadBlif.c
index 83ec12f5..fa552990 100644
--- a/src/base/cba/cbaReadBlif.c
+++ b/src/base/cba/cbaReadBlif.c
@@ -62,11 +62,11 @@ static inline void Cba_PrsAddBlifDirectives( Cba_Prs_t * p )
 {
     int i;
     for ( i = 1; s_BlifTypes[i]; i++ )
-        Abc_NamStrFindOrAdd( p->pDesign->pNames, (char *)s_BlifTypes[i],   NULL );
+        Abc_NamStrFindOrAdd( p->pDesign->pNames, (char *)s_BlifTypes[i], NULL );
     assert( Abc_NamObjNumMax(p->pDesign->pNames) == i );
     for ( i = 1; i < CBA_NODE_UNKNOWN; i++ )
-        Abc_NamStrFindOrAdd( p->pDesign->pFuncs, Ptr_TypeToSop(i),   NULL );
-    assert( Abc_NamObjNumMax(p->pDesign->pFuncs) == i-1 );
+        Abc_NamStrFindOrAdd( p->pDesign->pFuncs, Ptr_TypeToSop(i), NULL );
+    assert( Abc_NamObjNumMax(p->pDesign->pFuncs) == i );
 }
 
 
diff --git a/src/base/cba/cbaReadVer.c b/src/base/cba/cbaReadVer.c
index 714830ab..6eeb104f 100644
--- a/src/base/cba/cbaReadVer.c
+++ b/src/base/cba/cbaReadVer.c
@@ -708,7 +708,57 @@ void Cba_PrsPrintModules( Cba_Prs_t * p )
   SeeAlso     []
 
 ***********************************************************************/
-Cba_Man_t * Cba_PrsReadVerilog( char * pFileName )
+void Cba_PrsSkipRangesNtk( Cba_Ntk_t * p )
+{
+    Vec_Int_t * vFanins; 
+    int FormId, NameId, RangeId;
+    int i, k, s, Count = 0;
+    Vec_Int_t * vSigs[4] = { &p->vInouts, &p->vInputs, &p->vOutputs, &p->vWires };
+    for ( s = 0; s < 4; s++ )
+    {
+        k = 0;
+        Vec_IntForEachEntryDouble( vSigs[s], NameId, RangeId, i )
+            Vec_IntWriteEntry( vSigs[s], k++, NameId ), Count += RangeId > 0;
+        Vec_IntShrink( vSigs[s], k );
+    }
+    Cba_NtkForEachNode( p, i )
+    {
+        k = 0;
+        vFanins = Cba_ObjFaninVec( p, i );
+        Vec_IntForEachEntryDouble( vFanins, NameId, RangeId, s )
+            Vec_IntWriteEntry( vFanins, k++, NameId ), Count += RangeId > 0;
+        Cba_ObjFaninArray(p, i)[0] = k;
+    }
+    Cba_NtkForEachBox( p, i )
+    {
+        k = 0;
+        vFanins = Cba_ObjFaninVec( p, i );
+        Vec_IntForEachEntryTriple( vFanins, FormId, NameId, RangeId, s )
+            Vec_IntWriteEntry( vFanins, k++, FormId ), Vec_IntWriteEntry( vFanins, k++, NameId ), Count += RangeId > 0;
+        Cba_ObjFaninArray(p, i)[0] = k;
+    }
+    if ( Count )
+        printf( "Network %s has %d non-trivial ranges.\n", Cba_NtkName(p), Count );
+}
+void Cba_PrsSkipRanges( Cba_Man_t * p )
+{
+    Cba_Ntk_t * pNtk; int i;
+    Cba_ManForEachNtk( p, pNtk, i )
+        Cba_PrsSkipRangesNtk( pNtk );
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Cba_Man_t * Cba_PrsReadVerilog( char * pFileName, int fBinary )
 {
     Cba_Man_t * pDesign = NULL;
     Cba_Prs_t * p = Cba_PrsAlloc( pFileName );
@@ -716,11 +766,14 @@ Cba_Man_t * Cba_PrsReadVerilog( char * pFileName )
         return NULL;
     Cba_PrsAddVerilogDirectives( p );
     Cba_PrsReadDesign( p );
-    Cba_PrsPrintModules( p );
+    //Cba_PrsPrintModules( p );
     if ( Cba_PrsErrorPrint(p) )
         ABC_SWAP( Cba_Man_t *, pDesign, p->pDesign );
     Cba_PrsFree( p );
     Cba_PrsRemapBoxModels( pDesign );
+    // transform to binary ranges
+    if ( fBinary )
+        Cba_PrsSkipRanges( pDesign );
     return pDesign;
 }
 
@@ -728,16 +781,16 @@ void Cba_PrsReadVerilogTest( char * pFileName )
 {
     abctime clk = Abc_Clock();
     extern void Cba_PrsWriteVerilog( char * pFileName, Cba_Man_t * p );
-    Cba_Man_t * p = Cba_PrsReadVerilog( "c/hie/dump/1/netlist_1.v" );
-//    Cba_Man_t * p = Cba_PrsReadVerilog( "aga/me/me_wide.v" );
-//    Cba_Man_t * p = Cba_PrsReadVerilog( "aga/ray/ray_wide.v" );
+    Cba_Man_t * p = Cba_PrsReadVerilog( "c/hie/dump/24/netlist_0.v", 0 );
+//    Cba_Man_t * p = Cba_PrsReadVerilog( "aga/me/me_wide.v", 0 );
+//    Cba_Man_t * p = Cba_PrsReadVerilog( "aga/ray/ray_wide.v", 0 );
     if ( !p ) return;
     printf( "Finished reading %d networks. ", Cba_ManNtkNum(p) );
     printf( "NameIDs = %d. ", Abc_NamObjNumMax(p->pNames) );
     printf( "Memory = %.2f MB. ", 1.0*Cba_ManMemory(p)/(1<<20) );
     Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
 //    Abc_NamPrint( p->pDesign->pNames );
-    Cba_PrsWriteVerilog( "c/hie/dump/1/netlist_1_out.v", p );
+    Cba_PrsWriteVerilog( "c/hie/dump/24/netlist_0_out.v", p );
 //    Cba_PrsWriteVerilog( "aga/me/me_wide_out.v", p );
 //    Cba_PrsWriteVerilog( "aga/ray/ray_wide_out.v", p );
     Cba_ManFree( p );
diff --git a/src/base/cba/cbaSimple.c b/src/base/cba/cbaSimple.c
index 7fe6cb0a..702fa2b0 100644
--- a/src/base/cba/cbaSimple.c
+++ b/src/base/cba/cbaSimple.c
@@ -481,11 +481,10 @@ Vec_Ptr_t * Ptr_CbaDeriveNode( Cba_Ntk_t * pNtk, int iObj )
 }
 Vec_Ptr_t * Ptr_CbaDeriveNodes( Cba_Ntk_t * pNtk )
 {
-    int Type, iObj;
+    int i;
     Vec_Ptr_t * vNodes = Vec_PtrAlloc( Cba_NtkNodeNum(pNtk) );
-    Cba_NtkForEachObjType( pNtk, Type, iObj )
-        if ( Type == CBA_OBJ_NODE )
-            Vec_PtrPush( vNodes, Ptr_CbaDeriveNode(pNtk, iObj) );
+    Cba_NtkForEachNode( pNtk, i )
+        Vec_PtrPush( vNodes, Ptr_CbaDeriveNode(pNtk, i) );
     assert( Ptr_CheckArray(vNodes) );
     return vNodes;
 }
@@ -515,11 +514,10 @@ Vec_Ptr_t * Ptr_CbaDeriveBox( Cba_Ntk_t * pNtk, int iObj )
 }
 Vec_Ptr_t * Ptr_CbaDeriveBoxes( Cba_Ntk_t * pNtk )
 {
-    int Type, iObj;
+    int i;
     Vec_Ptr_t * vBoxes = Vec_PtrAlloc( Cba_NtkBoxNum(pNtk) );
-    Cba_NtkForEachObjType( pNtk, Type, iObj )
-        if ( Type == CBA_OBJ_BOX )
-            Vec_PtrPush( vBoxes, Ptr_CbaDeriveBox(pNtk, iObj) );
+    Cba_NtkForEachBox( pNtk, i )
+        Vec_PtrPush( vBoxes, Ptr_CbaDeriveBox(pNtk, i) );
     assert( Ptr_CheckArray(vBoxes) );
     return vBoxes;
 }
@@ -620,7 +618,6 @@ void Cba_PrsReadModule( Cba_Man_t * p, Cba_Ntk_t * pNtk, Vec_Ptr_t * vNtk, Vec_I
     Cba_ManAllocArray( p, &pNtk->vFuncs,   Vec_PtrSize(vNodes) + Vec_PtrSize(vBoxes) ); 
     Cba_ManAllocArray( p, &pNtk->vInstIds, Vec_PtrSize(vNodes) + Vec_PtrSize(vBoxes) ); 
     Cba_ManAllocArray( p, &pNtk->vFanins,  Vec_PtrSize(vNodes) + Vec_PtrSize(vBoxes) ); 
-    Cba_ManAllocArray( p, &pNtk->vBoxes,   Vec_PtrSize(vBoxes) ); 
 
     Cba_PrsReadList( p, vInputs,  &pNtk->vInputs,  -1, -1 );
     Cba_PrsReadList( p, vOutputs, &pNtk->vOutputs, -1, -1 );
diff --git a/src/base/cba/cbaWriteBlif.c b/src/base/cba/cbaWriteBlif.c
index 656ae8c0..7e227d2d 100644
--- a/src/base/cba/cbaWriteBlif.c
+++ b/src/base/cba/cbaWriteBlif.c
@@ -20,6 +20,8 @@
 
 #include "cba.h"
 #include "cbaPrs.h"
+#include "map/mio/mio.h"
+#include "base/main/main.h"
 
 ABC_NAMESPACE_IMPL_START
 
@@ -131,6 +133,14 @@ void Cba_PrsWriteBlif( char * pFileName, Cba_Man_t * p )
   SeeAlso     []
 
 ***********************************************************************/
+void Cba_ManWriteBlifGate( FILE * pFile, Cba_Ntk_t * p, Mio_Gate_t * pGate, Vec_Int_t * vFanins, int iObj )
+{
+    int iFanin, i;
+    Vec_IntForEachEntry( vFanins, iFanin, i )
+        fprintf( pFile, " %s=%s", Mio_GateReadPinName(pGate, i), Cba_ObjNameStr(p, iFanin) );
+    fprintf( pFile, " %s=%s", Mio_GateReadOutName(pGate), Cba_ObjNameStr(p, iObj) );
+    fprintf( pFile, "\n" );
+}
 void Cba_ManWriteBlifArray( FILE * pFile, Cba_Ntk_t * p, Vec_Int_t * vFanins, int iObj )
 {
     int iFanin, i;
@@ -157,10 +167,20 @@ void Cba_ManWriteBlifLines( FILE * pFile, Cba_Ntk_t * p )
     {
         if ( Type == CBA_OBJ_NODE ) // .names/assign/box2 (no formal/actual binding)
         {
-            fprintf( pFile, ".names" );
-            Cba_ManWriteBlifArray( pFile, p, Cba_ObjFaninVec(p, i), i );
-            //fprintf( pFile, "%s", Cba_NtkFuncStr(p,  Cba_ObjFuncId(p, i)) );
-            fprintf( pFile, "%s", Ptr_TypeToSop( Cba_ObjFuncId(p, i) ) );
+            if ( Abc_NamObjNumMax(p->pDesign->pFuncs) > 1 ) // mapped
+            {
+                char * pGateName = Abc_NamStr( p->pDesign->pFuncs, Cba_ObjFuncId(p, i) );
+                Mio_Gate_t * pGate = Mio_LibraryReadGateByName( (Mio_Library_t *)p->pDesign->pMioLib, pGateName, NULL );
+                fprintf( pFile, ".gate" );
+                Cba_ManWriteBlifGate( pFile, p, pGate, Cba_ObjFaninVec(p, i), i );
+            }
+            else
+            { 
+                fprintf( pFile, ".names" );
+                Cba_ManWriteBlifArray( pFile, p, Cba_ObjFaninVec(p, i), i );
+                //fprintf( pFile, "%s", Cba_NtkFuncStr(p,  Cba_ObjFuncId(p, i)) );
+                fprintf( pFile, "%s", Ptr_TypeToSop( Cba_ObjFuncId(p, i) ) );
+            }
         }
         else if ( Type == CBA_OBJ_BOX ) // .names/assign/box2 (no formal/actual binding)
         {
@@ -201,6 +221,12 @@ void Cba_ManWriteBlif( char * pFileName, Cba_Man_t * p )
     FILE * pFile;
     Cba_Ntk_t * pNtk; 
     int i;
+    // check the library
+    if ( Abc_NamObjNumMax(p->pFuncs) > 1 && p->pMioLib != Abc_FrameReadLibGen() )
+    {
+        printf( "Genlib library used in the mapped design is not longer a current library.\n" );
+        return;
+    }
     pFile = fopen( pFileName, "wb" );
     if ( pFile == NULL )
     {
diff --git a/src/base/cba/cbaWriteVer.c b/src/base/cba/cbaWriteVer.c
index d928da4b..e2769239 100644
--- a/src/base/cba/cbaWriteVer.c
+++ b/src/base/cba/cbaWriteVer.c
@@ -116,14 +116,13 @@ void Cba_PrsWriteVerilogNodes( FILE * pFile, Cba_Ntk_t * p )
 }
 void Cba_PrsWriteVerilogBoxes( FILE * pFile, Cba_Ntk_t * p )
 {
-    int Type, i;
-    Cba_NtkForEachObjType( p, Type, i )
-        if ( Type == CBA_OBJ_BOX ) // .subckt/.gate/box (formal/actual binding) 
-        {
-            fprintf( pFile, "  %s %s (", Cba_NtkName(Cba_ObjBoxModel(p, i)), Cba_ObjInstStr(p, i) );
-            Cba_PrsWriteVerilogArray3( pFile, p, Cba_ObjFaninVec(p, i) );
-            fprintf( pFile, ");\n" );
-        }
+    int i;
+    Cba_NtkForEachBox( p, i ) // .subckt/.gate/box (formal/actual binding) 
+    {
+        fprintf( pFile, "  %s %s (", Cba_NtkName(Cba_ObjBoxModel(p, i)), Cba_ObjInstStr(p, i) );
+        Cba_PrsWriteVerilogArray3( pFile, p, Cba_ObjFaninVec(p, i) );
+        fprintf( pFile, ");\n" );
+    }
 }
 void Cba_PrsWriteVerilogSignals( FILE * pFile, Cba_Ntk_t * p, int SigType )
 {
@@ -259,40 +258,32 @@ void Cba_ManWriteVerilogArray2( FILE * pFile, Cba_Ntk_t * p, int iObj, Vec_Int_t
 }
 void Cba_ManWriteVerilogNodes( FILE * pFile, Cba_Ntk_t * p )
 {
-    int Type, Func, i;
-    Cba_NtkForEachObjType( p, Type, i )
-        if ( Type == CBA_OBJ_NODE ) // .names/assign/box2 (no formal/actual binding)
+    int Func, i;
+    Cba_NtkForEachNode( p, i ) // .names/assign/box2 (no formal/actual binding)
+    {
+        Func = Cba_ObjFuncId(p, i);
+        if ( Func >= CBA_NODE_BUF && Func <= CBA_NODE_XNOR )
         {
-            Func = Cba_ObjFuncId(p, i);
-            if ( Func >= CBA_NODE_BUF && Func <= CBA_NODE_XNOR )
-            {
-                fprintf( pFile, "  %s (", Ptr_TypeToName(Func) );
-                Cba_ManWriteVerilogArray2( pFile, p, i, Cba_ObjFaninVec(p, i) );
-                fprintf( pFile, ");\n" );
-            }
-//            else if ( Func == CBA_NODE_MUX )
-//                Cba_PrsWriteVerilogMux( pFile, p, Cba_ObjFaninVec(p, i) );
-            else
-            {
-                //char * pName = Cba_NtkStr(p, Func);
-                assert( 0 );
-            }
+            fprintf( pFile, "  %s (", Ptr_TypeToName(Func) );
+            Cba_ManWriteVerilogArray2( pFile, p, i, Cba_ObjFaninVec(p, i) );
+            fprintf( pFile, ");\n" );
         }
+        else assert( 0 );
+    }
 }
 void Cba_ManWriteVerilogBoxes( FILE * pFile, Cba_Ntk_t * p )
 {
-    int i, k, iTerm, Type;
-    Cba_NtkForEachObjType( p, Type, i )
-        if ( Type == CBA_OBJ_BOX ) // .subckt/.gate/box (formal/actual binding) 
-        {
-            Cba_Ntk_t * pModel = Cba_ObjBoxModel( p, i );
-            fprintf( pFile, "  %s %s (", Cba_NtkName(pModel), Vec_IntSize(&p->vInstIds) ? Cba_ObjInstStr(p, i) : "" );
-            Cba_NtkForEachPi( pModel, iTerm, k )
-                fprintf( pFile, " %s=%s", Cba_ObjNameStr(pModel, iTerm), Cba_ObjNameStr(p, Cba_ObjBoxBi(p, i, k)) );
-            Cba_NtkForEachPo( pModel, iTerm, k )
-                fprintf( pFile, " %s=%s", Cba_ObjNameStr(pModel, iTerm), Cba_ObjNameStr(p, Cba_ObjBoxBo(p, i, k)) );
-            fprintf( pFile, "\n" );
-        }
+    int i, k, iTerm;
+    Cba_NtkForEachBox( p, i ) // .subckt/.gate/box (formal/actual binding) 
+    {
+        Cba_Ntk_t * pModel = Cba_ObjBoxModel( p, i );
+        fprintf( pFile, "  %s %s (", Cba_NtkName(pModel), Vec_IntSize(&p->vInstIds) ? Cba_ObjInstStr(p, i) : "" );
+        Cba_NtkForEachPi( pModel, iTerm, k )
+            fprintf( pFile, " %s=%s", Cba_ObjNameStr(pModel, iTerm), Cba_ObjNameStr(p, Cba_ObjBoxBi(p, i, k)) );
+        Cba_NtkForEachPo( pModel, iTerm, k )
+            fprintf( pFile, " %s=%s", Cba_ObjNameStr(pModel, iTerm), Cba_ObjNameStr(p, Cba_ObjBoxBo(p, i, k)) );
+        fprintf( pFile, "\n" );
+    }
 }
 void Cba_ManWriteVerilogSignals( FILE * pFile, Cba_Ntk_t * p, int SigType, int fNoRange )
 {