Version abc90329

1 files changed, 129 insertions, 0 deletions

diff --git a/src/aig/gia/giaPat.c b/src/aig/gia/giaPat.c
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+/**CFile****************************************************************
+
+  FileName    [gia.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Scalable AIG package.]
+
+  Synopsis    []
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: gia.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "gia.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+static inline int   Sat_ObjXValue( Gia_Obj_t * pObj )          { return (pObj->fMark1 << 1) | pObj->fMark0;             }
+static inline void  Sat_ObjSetXValue( Gia_Obj_t * pObj, int v) { pObj->fMark0 = (v & 1); pObj->fMark1 = ((v >> 1) & 1); }
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Collects nodes in the cone and initialized them to x.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Gia_SatCollectCone_rec( Gia_Man_t * p, Gia_Obj_t * pObj, Vec_Int_t * vVisit )
+{
+    if ( Sat_ObjXValue(pObj) == GIA_UND )
+        return;
+    if ( Gia_ObjIsAnd(pObj) )
+    {
+        Gia_SatCollectCone_rec( p, Gia_ObjFanin0(pObj), vVisit );
+        Gia_SatCollectCone_rec( p, Gia_ObjFanin1(pObj), vVisit );
+    }
+    assert( Sat_ObjXValue(pObj) == 0 );
+    Sat_ObjSetXValue( pObj, GIA_UND );
+    Vec_IntPush( vVisit, Gia_ObjId(p, pObj) );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Collects nodes in the cone and initialized them to x.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Gia_SatCollectCone( Gia_Man_t * p, Gia_Obj_t * pObj, Vec_Int_t * vVisit )
+{
+    assert( !Gia_IsComplement(pObj) );
+    assert( !Gia_ObjIsConst0(pObj) );
+    assert( Sat_ObjXValue(pObj) == 0 );
+    Vec_IntClear( vVisit );
+    Gia_SatCollectCone_rec( p, pObj, vVisit );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Checks if the counter-examples asserts the output.]
+
+  Description [Assumes that fMark0 and fMark1 are clean. Leaves them clean.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Gia_SatVerifyPattern( Gia_Man_t * p, Gia_Obj_t * pRoot, Vec_Int_t * vCex, Vec_Int_t * vVisit )
+{
+    Gia_Obj_t * pObj;
+    int i, Entry, Value, Value0, Value1;
+    assert( Gia_ObjIsCo(pRoot) );
+    assert( !Gia_ObjIsConst0(Gia_ObjFanin0(pRoot)) );
+    // collect nodes and initialized them to x
+    Gia_SatCollectCone( p, Gia_ObjFanin0(pRoot), vVisit );
+    // set binary values to nodes in the counter-example
+    Vec_IntForEachEntry( vCex, Entry, i )
+//        Sat_ObjSetXValue( Gia_ManObj(p, Gia_Lit2Var(Entry)), Gia_LitIsCompl(Entry)? GIA_ZER : GIA_ONE );
+        Sat_ObjSetXValue( Gia_ManCi(p, Gia_Lit2Var(Entry)), Gia_LitIsCompl(Entry)? GIA_ZER : GIA_ONE );
+    // simulate
+    Gia_ManForEachObjVec( vVisit, p, pObj, i )
+    {
+        if ( Gia_ObjIsCi(pObj) )
+            continue;
+        assert( Gia_ObjIsAnd(pObj) );
+        Value0 = Sat_ObjXValue( Gia_ObjFanin0(pObj) );
+        Value1 = Sat_ObjXValue( Gia_ObjFanin1(pObj) );
+        Value = Gia_XsimAndCond( Value0, Gia_ObjFaninC0(pObj), Value1, Gia_ObjFaninC1(pObj) );
+        Sat_ObjSetXValue( pObj, Value );
+    }
+    Value = Gia_XsimNotCond( Value, Gia_ObjFaninC0(pRoot) );
+    if ( Value != GIA_ONE )
+        printf( "Gia_SatVerifyPattern(): Verification FAILED.\n" );
+//    else
+//        printf( "Gia_SatVerifyPattern(): Verification succeeded.\n" );
+//    assert( Value == GIA_ONE );
+    // clean the nodes
+    Gia_ManForEachObjVec( vVisit, p, pObj, i )
+        Sat_ObjSetXValue( pObj, 0 );
+}
+
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+