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Experiments with SAT-based simulation.

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This commit is contained in:
Alan Mishchenko
2018-01-25 00:09:27 -08:00
parent 066e8d1b17
commit e4cd0d60f1
8 changed files with 60 additions and 19 deletions
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src/proof/cec/cecSat.c
+11 -8
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@@ -278,26 +278,28 @@ void Cec2_AddClausesSuper( Gia_Man_t * p, Gia_Obj_t * pNode, Vec_Ptr_t * vSuper,
SeeAlso []
***********************************************************************/
void Cec2_CollectSuper_rec( Gia_Obj_t * pObj, Vec_Ptr_t * vSuper, int fFirst, int fUseMuxes )
void Cec2_CollectSuper_rec( Gia_Man_t * p, Gia_Obj_t * pObj, Vec_Ptr_t * vSuper, int fFirst, int fUseMuxes )
{
//printf( "v%d ", Gia_ObjValue(pObj) );
// if the new node is complemented or a PI, another gate begins
if ( Gia_IsComplement(pObj) || Gia_ObjIsCi(pObj) ||
(!fFirst && Gia_ObjValue(pObj) > 1) ||
// (!fFirst && Gia_ObjValue(pObj) > 1) ||
(!fFirst && (p->pRefs ? Gia_ObjRefNum(p, pObj) : Gia_ObjValue(pObj)) > 1) ||
(fUseMuxes && pObj->fMark0) )
{
Vec_PtrPushUnique( vSuper, pObj );
return;
}
// go through the branches
Cec2_CollectSuper_rec( Gia_ObjChild0(pObj), vSuper, 0, fUseMuxes );
Cec2_CollectSuper_rec( Gia_ObjChild1(pObj), vSuper, 0, fUseMuxes );
Cec2_CollectSuper_rec( p, Gia_ObjChild0(pObj), vSuper, 0, fUseMuxes );
Cec2_CollectSuper_rec( p, Gia_ObjChild1(pObj), vSuper, 0, fUseMuxes );
}
void Cec2_CollectSuper( Gia_Obj_t * pObj, int fUseMuxes, Vec_Ptr_t * vSuper )
void Cec2_CollectSuper( Gia_Man_t * p, Gia_Obj_t * pObj, int fUseMuxes, Vec_Ptr_t * vSuper )
{
assert( !Gia_IsComplement(pObj) );
assert( !Gia_ObjIsCi(pObj) );
Vec_PtrClear( vSuper );
Cec2_CollectSuper_rec( pObj, vSuper, 1, fUseMuxes );
Cec2_CollectSuper_rec( p, pObj, vSuper, 1, fUseMuxes );
}
void Cec2_ObjAddToFrontier( Gia_Man_t * p, Gia_Obj_t * pObj, Vec_Ptr_t * vFrontier, satoko_t * pSat )
{
@@ -360,10 +362,11 @@ int Gia_ObjGetCnfVar( Gia_Man_t * pGia, int iObj, Vec_Ptr_t * vFrontier, Vec_Ptr
}
else
{
Cec2_CollectSuper( pNode, fUseMuxes, vFanins );
Cec2_CollectSuper( pGia, pNode, fUseMuxes, vFanins );
Vec_PtrForEachEntry( Gia_Obj_t *, vFanins, pFanin, k )
Cec2_ObjAddToFrontier( pGia, Gia_Regular(pFanin), vFrontier, pSat );
Cec2_AddClausesSuper( pGia, pNode, vFanins, pSat );
Cec2_AddClausesSuper( pGia, pNode, vFanins, pSat );
//printf( "%d ", Vec_PtrSize(vFanins) );
}
assert( Vec_PtrSize(vFanins) > 1 );
}