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/**CFile****************************************************************
FileName [abcVerify.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Network and node package.]
Synopsis [Combinational and sequential verification for two networks.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: abcVerify.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "fraig.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Verifies combinational equivalence by brute-force SAT.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkCecSat( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2 )
{
Abc_Ntk_t * pMiter;
Abc_Ntk_t * pCnf;
int RetValue;
// get the miter of the two networks
pMiter = Abc_NtkMiter( pNtk1, pNtk2, 1 );
if ( pMiter == NULL )
{
printf( "Miter computation has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pMiter );
if ( RetValue == 1 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are NOT EQUIVALENT after structural hashing.\n" );
return;
}
if ( RetValue == 0 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are equivalent after structural hashing.\n" );
return;
}
// convert the miter into a CNF
pCnf = Abc_NtkRenode( pMiter, 0, 100, 1, 0, 0 );
Abc_NtkDelete( pMiter );
if ( pCnf == NULL )
{
printf( "Renoding for CNF has failed.\n" );
return;
}
// solve the CNF using the SAT solver
if ( Abc_NtkMiterSat( pCnf, 0 ) )
printf( "Networks are NOT EQUIVALENT after SAT.\n" );
else
printf( "Networks are equivalent after SAT.\n" );
Abc_NtkDelete( pCnf );
}
/**Function*************************************************************
Synopsis [Verifies sequential equivalence by fraiging followed by SAT.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkCecFraig( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2, int fVerbose )
{
Fraig_Params_t Params;
Abc_Ntk_t * pMiter;
Abc_Ntk_t * pFraig;
int RetValue;
// get the miter of the two networks
pMiter = Abc_NtkMiter( pNtk1, pNtk2, 1 );
if ( pMiter == NULL )
{
printf( "Miter computation has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pMiter );
if ( RetValue == 1 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are NOT EQUIVALENT after structural hashing.\n" );
return;
}
if ( RetValue == 0 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are equivalent after structural hashing.\n" );
return;
}
// convert the miter into a FRAIG
Fraig_ParamsSetDefault( &Params );
Params.fVerbose = fVerbose;
pFraig = Abc_NtkFraig( pMiter, &Params, 0 );
Abc_NtkDelete( pMiter );
if ( pFraig == NULL )
{
printf( "Fraiging has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pFraig );
Abc_NtkDelete( pFraig );
if ( RetValue == 0 )
{
printf( "Networks are equivalent after fraiging.\n" );
return;
}
printf( "Networks are NOT EQUIVALENT after fraiging.\n" );
}
/**Function*************************************************************
Synopsis [Verifies sequential equivalence by brute-force SAT.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkSecSat( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2, int nFrames )
{
Abc_Ntk_t * pMiter;
Abc_Ntk_t * pFrames;
Abc_Ntk_t * pCnf;
int RetValue;
// get the miter of the two networks
pMiter = Abc_NtkMiter( pNtk1, pNtk2, 0 );
if ( pMiter == NULL )
{
printf( "Miter computation has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pMiter );
if ( RetValue == 1 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are NOT EQUIVALENT after structural hashing.\n" );
return;
}
if ( RetValue == 0 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are equivalent after structural hashing.\n" );
return;
}
// create the timeframes
pFrames = Abc_NtkFrames( pMiter, nFrames, 1 );
Abc_NtkDelete( pMiter );
if ( pFrames == NULL )
{
printf( "Frames computation has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pFrames );
if ( RetValue == 1 )
{
Abc_NtkDelete( pFrames );
printf( "Networks are NOT EQUIVALENT after framing.\n" );
return;
}
if ( RetValue == 0 )
{
Abc_NtkDelete( pFrames );
printf( "Networks are equivalent after framing.\n" );
return;
}
// convert the miter into a CNF
pCnf = Abc_NtkRenode( pFrames, 0, 100, 1, 0, 0 );
Abc_NtkDelete( pFrames );
if ( pCnf == NULL )
{
printf( "Renoding for CNF has failed.\n" );
return;
}
// solve the CNF using the SAT solver
if ( Abc_NtkMiterSat( pCnf, 0 ) )
printf( "Networks are NOT EQUIVALENT after SAT.\n" );
else
printf( "Networks are equivalent after SAT.\n" );
Abc_NtkDelete( pCnf );
}
/**Function*************************************************************
Synopsis [Verifies combinational equivalence by fraiging followed by SAT]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkSecFraig( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2, int nFrames )
{
Fraig_Params_t Params;
Abc_Ntk_t * pMiter;
Abc_Ntk_t * pFraig;
Abc_Ntk_t * pFrames;
int RetValue;
// get the miter of the two networks
pMiter = Abc_NtkMiter( pNtk1, pNtk2, 0 );
if ( pMiter == NULL )
{
printf( "Miter computation has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pMiter );
if ( RetValue == 1 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are NOT EQUIVALENT after structural hashing.\n" );
return;
}
if ( RetValue == 0 )
{
Abc_NtkDelete( pMiter );
printf( "Networks are equivalent after structural hashing.\n" );
return;
}
// create the timeframes
pFrames = Abc_NtkFrames( pMiter, nFrames, 1 );
Abc_NtkDelete( pMiter );
if ( pFrames == NULL )
{
printf( "Frames computation has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pFrames );
if ( RetValue == 1 )
{
Abc_NtkDelete( pFrames );
printf( "Networks are NOT EQUIVALENT after framing.\n" );
return;
}
if ( RetValue == 0 )
{
Abc_NtkDelete( pFrames );
printf( "Networks are equivalent after framing.\n" );
return;
}
// convert the miter into a FRAIG
Fraig_ParamsSetDefault( &Params );
pFraig = Abc_NtkFraig( pFrames, &Params, 0 );
Abc_NtkDelete( pFrames );
if ( pFraig == NULL )
{
printf( "Fraiging has failed.\n" );
return;
}
RetValue = Abc_NtkMiterIsConstant( pFraig );
Abc_NtkDelete( pFraig );
if ( RetValue == 0 )
{
printf( "Networks are equivalent after fraiging.\n" );
return;
}
printf( "Networks are NOT EQUIVALENT after fraiging.\n" );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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