/**CFile****************************************************************

  FileName    [sswSimSat.c]

  SystemName  [ABC: Logic synthesis and verification system.]

  PackageName [Inductive prover with constraints.]

  Synopsis    [Performs resimulation using counter-examples.]

  Author      [Alan Mishchenko]
  
  Affiliation [UC Berkeley]

  Date        [Ver. 1.0. Started - September 1, 2008.]

  Revision    [$Id: sswSimSat.c,v 1.00 2008/09/01 00:00:00 alanmi Exp $]

***********************************************************************/

#include "sswInt.h"

ABC_NAMESPACE_IMPL_START


////////////////////////////////////////////////////////////////////////
///                        DECLARATIONS                              ///
////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////
///                     FUNCTION DEFINITIONS                         ///
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/**Function*************************************************************

  Synopsis    [Handle the counter-example.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Ssw_ManResimulateBit( Ssw_Man_t * p, Aig_Obj_t * pCand, Aig_Obj_t * pRepr )
{
    Aig_Obj_t * pObj;
    int i, RetValue1, RetValue2;
    clock_t clk = clock();
    // set the PI simulation information
    Aig_ManConst1(p->pAig)->fMarkB = 1;
    Aig_ManForEachCi( p->pAig, pObj, i )
        pObj->fMarkB = Abc_InfoHasBit( p->pPatWords, i );
    // simulate internal nodes
    Aig_ManForEachNode( p->pAig, pObj, i )
        pObj->fMarkB = ( Aig_ObjFanin0(pObj)->fMarkB ^ Aig_ObjFaninC0(pObj) )
                     & ( Aig_ObjFanin1(pObj)->fMarkB ^ Aig_ObjFaninC1(pObj) );
    // if repr is given, perform refinement
    if ( pRepr )
    {
        // check equivalence classes
        RetValue1 = Ssw_ClassesRefineConst1( p->ppClasses, 0 );
        RetValue2 = Ssw_ClassesRefine( p->ppClasses, 0 );
        // make sure refinement happened
        if ( Aig_ObjIsConst1(pRepr) )
        {
            assert( RetValue1 );
            if ( RetValue1 == 0 )
                Abc_Print( 1, "\nSsw_ManResimulateBit() Error: RetValue1 does not hold.\n" );
        }
        else
        {
            assert( RetValue2 );
            if ( RetValue2 == 0 )
                Abc_Print( 1, "\nSsw_ManResimulateBit() Error: RetValue2 does not hold.\n" );
        }
    }
p->timeSimSat += clock() - clk;
}

/**Function*************************************************************

  Synopsis    [Handle the counter-example.]

  Description []
               
  SideEffects []

  SeeAlso     []

***********************************************************************/
void Ssw_ManResimulateWord( Ssw_Man_t * p, Aig_Obj_t * pCand, Aig_Obj_t * pRepr, int f )
{
    int RetValue1, RetValue2;
    clock_t clk = clock();
    // set the PI simulation information
    Ssw_SmlAssignDist1Plus( p->pSml, p->pPatWords );
    // simulate internal nodes
    Ssw_SmlSimulateOne( p->pSml );
    // check equivalence classes
    RetValue1 = Ssw_ClassesRefineConst1( p->ppClasses, 1 );
    RetValue2 = Ssw_ClassesRefine( p->ppClasses, 1 );
    // make sure refinement happened
    if ( Aig_ObjIsConst1(pRepr) )
    {
        assert( RetValue1 );
        if ( RetValue1 == 0 )
            Abc_Print( 1, "\nSsw_ManResimulateWord() Error: RetValue1 does not hold.\n" );
    }
    else
    {
        assert( RetValue2 );
        if ( RetValue2 == 0 )
            Abc_Print( 1, "\nSsw_ManResimulateWord() Error: RetValue2 does not hold.\n" );
    }
p->timeSimSat += clock() - clk;
}

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///                       END OF FILE                                ///
////////////////////////////////////////////////////////////////////////


ABC_NAMESPACE_IMPL_END
