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authorAlan Mishchenko <alanmi@berkeley.edu>2012-01-21 04:30:10 -0800
committerAlan Mishchenko <alanmi@berkeley.edu>2012-01-21 04:30:10 -0800
commit8014f25f6db719fa62336f997963532a14c568f6 (patch)
treec691ee91a3a2d452a2bd24ac89a8c717beaa7af7 /src/aig/ssw/sswPairs.c
parentc44cc5de9429e6b4f1c05045fcf43c9cb96437b5 (diff)
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Major restructuring of the code.
Diffstat (limited to 'src/aig/ssw/sswPairs.c')
-rw-r--r--src/aig/ssw/sswPairs.c477
1 files changed, 0 insertions, 477 deletions
diff --git a/src/aig/ssw/sswPairs.c b/src/aig/ssw/sswPairs.c
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--- a/src/aig/ssw/sswPairs.c
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-/**CFile****************************************************************
-
- FileName [sswPairs.c]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName [Inductive prover with constraints.]
-
- Synopsis [Calls to the SAT solver.]
-
- Author [Alan Mishchenko]
-
- Affiliation [UC Berkeley]
-
- Date [Ver. 1.0. Started - September 1, 2008.]
-
- Revision [$Id: sswPairs.c,v 1.00 2008/09/01 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-#include "sswInt.h"
-
-ABC_NAMESPACE_IMPL_START
-
-
-////////////////////////////////////////////////////////////////////////
-/// DECLARATIONS ///
-////////////////////////////////////////////////////////////////////////
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
- Synopsis [Reports the status of the miter.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Ssw_MiterStatus( Aig_Man_t * p, int fVerbose )
-{
- Aig_Obj_t * pObj, * pChild;
- int i, CountConst0 = 0, CountNonConst0 = 0, CountUndecided = 0;
-// if ( p->pData )
-// return 0;
- Saig_ManForEachPo( p, pObj, i )
- {
- pChild = Aig_ObjChild0(pObj);
- // check if the output is constant 0
- if ( pChild == Aig_ManConst0(p) )
- {
- CountConst0++;
- continue;
- }
- // check if the output is constant 1
- if ( pChild == Aig_ManConst1(p) )
- {
- CountNonConst0++;
- continue;
- }
- // check if the output is a primary input
- if ( p->nRegs == 0 && Aig_ObjIsPi(Aig_Regular(pChild)) )
- {
- CountNonConst0++;
- continue;
- }
- // check if the output can be not constant 0
- if ( Aig_Regular(pChild)->fPhase != (unsigned)Aig_IsComplement(pChild) )
- {
- CountNonConst0++;
- continue;
- }
- CountUndecided++;
- }
-
- if ( fVerbose )
- {
- printf( "Miter has %d outputs. ", Saig_ManPoNum(p) );
- printf( "Const0 = %d. ", CountConst0 );
- printf( "NonConst0 = %d. ", CountNonConst0 );
- printf( "Undecided = %d. ", CountUndecided );
- printf( "\n" );
- }
-
- if ( CountNonConst0 )
- return 0;
- if ( CountUndecided )
- return -1;
- return 1;
-}
-
-/**Function*************************************************************
-
- Synopsis [Transfer equivalent pairs to the miter.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Vec_Int_t * Ssw_TransferSignalPairs( Aig_Man_t * pMiter, Aig_Man_t * pAig1, Aig_Man_t * pAig2, Vec_Int_t * vIds1, Vec_Int_t * vIds2 )
-{
- Vec_Int_t * vIds;
- Aig_Obj_t * pObj1, * pObj2;
- Aig_Obj_t * pObj1m, * pObj2m;
- int i;
- vIds = Vec_IntAlloc( 2 * Vec_IntSize(vIds1) );
- for ( i = 0; i < Vec_IntSize(vIds1); i++ )
- {
- pObj1 = Aig_ManObj( pAig1, Vec_IntEntry(vIds1, i) );
- pObj2 = Aig_ManObj( pAig2, Vec_IntEntry(vIds2, i) );
- pObj1m = Aig_Regular((Aig_Obj_t *)pObj1->pData);
- pObj2m = Aig_Regular((Aig_Obj_t *)pObj2->pData);
- assert( pObj1m && pObj2m );
- if ( pObj1m == pObj2m )
- continue;
- if ( pObj1m->Id < pObj2m->Id )
- {
- Vec_IntPush( vIds, pObj1m->Id );
- Vec_IntPush( vIds, pObj2m->Id );
- }
- else
- {
- Vec_IntPush( vIds, pObj2m->Id );
- Vec_IntPush( vIds, pObj1m->Id );
- }
- }
- return vIds;
-}
-
-/**Function*************************************************************
-
- Synopsis [Transform pairs into class representation.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Vec_Int_t ** Ssw_TransformPairsIntoTempClasses( Vec_Int_t * vPairs, int nObjNumMax )
-{
- Vec_Int_t ** pvClasses; // vector of classes
- int * pReprs; // mapping nodes into their representatives
- int Entry, idObj, idRepr, idReprObj, idReprRepr, i;
- // allocate data-structures
- pvClasses = ABC_CALLOC( Vec_Int_t *, nObjNumMax );
- pReprs = ABC_ALLOC( int, nObjNumMax );
- for ( i = 0; i < nObjNumMax; i++ )
- pReprs[i] = -1;
- // consider pairs
- for ( i = 0; i < Vec_IntSize(vPairs); i += 2 )
- {
- // get both objects
- idRepr = Vec_IntEntry( vPairs, i );
- idObj = Vec_IntEntry( vPairs, i+1 );
- assert( idObj > 0 );
- assert( (pReprs[idRepr] == -1) || (pvClasses[pReprs[idRepr]] != NULL) );
- assert( (pReprs[idObj] == -1) || (pvClasses[pReprs[idObj] ] != NULL) );
- // get representatives of both objects
- idReprRepr = pReprs[idRepr];
- idReprObj = pReprs[idObj];
- // check different situations
- if ( idReprRepr == -1 && idReprObj == -1 )
- { // they do not have classes
- // create a class
- pvClasses[idRepr] = Vec_IntAlloc( 4 );
- Vec_IntPush( pvClasses[idRepr], idRepr );
- Vec_IntPush( pvClasses[idRepr], idObj );
- pReprs[ idRepr ] = idRepr;
- pReprs[ idObj ] = idRepr;
- }
- else if ( idReprRepr >= 0 && idReprObj == -1 )
- { // representative has a class
- // add iObj to the same class
- Vec_IntPushUniqueOrder( pvClasses[idReprRepr], idObj );
- pReprs[ idObj ] = idReprRepr;
- }
- else if ( idReprRepr == -1 && idReprObj >= 0 )
- { // object has a class
- assert( idReprObj != idRepr );
- if ( idReprObj < idRepr )
- { // add idRepr to the same class
- Vec_IntPushUniqueOrder( pvClasses[idReprObj], idRepr );
- pReprs[ idRepr ] = idReprObj;
- }
- else // if ( idReprObj > idRepr )
- { // make idRepr new representative
- Vec_IntPushFirst( pvClasses[idReprObj], idRepr );
- pvClasses[idRepr] = pvClasses[idReprObj];
- pvClasses[idReprObj] = NULL;
- // set correct representatives of each node
- Vec_IntForEachEntry( pvClasses[idRepr], Entry, i )
- pReprs[ Entry ] = idRepr;
- }
- }
- else // if ( idReprRepr >= 0 && idReprObj >= 0 )
- { // both have classes
- if ( idReprRepr == idReprObj )
- { // the classes are the same
- // nothing to do
- }
- else
- { // the classes are different
- // find the repr of the new class
- if ( idReprRepr < idReprObj )
- {
- Vec_IntForEachEntry( pvClasses[idReprObj], Entry, i )
- {
- Vec_IntPushUniqueOrder( pvClasses[idReprRepr], Entry );
- pReprs[ Entry ] = idReprRepr;
- }
- Vec_IntFree( pvClasses[idReprObj] );
- pvClasses[idReprObj] = NULL;
- }
- else // if ( idReprRepr > idReprObj )
- {
- Vec_IntForEachEntry( pvClasses[idReprRepr], Entry, i )
- {
- Vec_IntPushUniqueOrder( pvClasses[idReprObj], Entry );
- pReprs[ Entry ] = idReprObj;
- }
- Vec_IntFree( pvClasses[idReprRepr] );
- pvClasses[idReprRepr] = NULL;
- }
- }
- }
- }
- ABC_FREE( pReprs );
- return pvClasses;
-}
-
-/**Function*************************************************************
-
- Synopsis []
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Ssw_FreeTempClasses( Vec_Int_t ** pvClasses, int nObjNumMax )
-{
- int i;
- for ( i = 0; i < nObjNumMax; i++ )
- if ( pvClasses[i] )
- Vec_IntFree( pvClasses[i] );
- ABC_FREE( pvClasses );
-}
-
-/**Function*************************************************************
-
- Synopsis [Performs signal correspondence for the miter of two AIGs with node pairs defined.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Aig_Man_t * Ssw_SignalCorrespondenceWithPairs( Aig_Man_t * pAig1, Aig_Man_t * pAig2, Vec_Int_t * vIds1, Vec_Int_t * vIds2, Ssw_Pars_t * pPars )
-{
- Ssw_Man_t * p;
- Aig_Man_t * pAigNew, * pMiter;
- Ssw_Pars_t Pars;
- Vec_Int_t * vPairs;
- Vec_Int_t ** pvClasses;
- assert( Vec_IntSize(vIds1) == Vec_IntSize(vIds2) );
- // create sequential miter
- pMiter = Saig_ManCreateMiter( pAig1, pAig2, 0 );
- Aig_ManCleanup( pMiter );
- // transfer information to the miter
- vPairs = Ssw_TransferSignalPairs( pMiter, pAig1, pAig2, vIds1, vIds2 );
- // create representation of the classes
- pvClasses = Ssw_TransformPairsIntoTempClasses( vPairs, Aig_ManObjNumMax(pMiter) );
- Vec_IntFree( vPairs );
- // if parameters are not given, create them
- if ( pPars == NULL )
- Ssw_ManSetDefaultParams( pPars = &Pars );
- // start the induction manager
- p = Ssw_ManCreate( pMiter, pPars );
- // create equivalence classes using these IDs
- p->ppClasses = Ssw_ClassesPreparePairs( pMiter, pvClasses );
- p->pSml = Ssw_SmlStart( pMiter, 0, p->nFrames + p->pPars->nFramesAddSim, 1 );
- Ssw_ClassesSetData( p->ppClasses, p->pSml, (unsigned(*)(void *,Aig_Obj_t *))Ssw_SmlObjHashWord, (int(*)(void *,Aig_Obj_t *))Ssw_SmlObjIsConstWord, (int(*)(void *,Aig_Obj_t *,Aig_Obj_t *))Ssw_SmlObjsAreEqualWord );
- // perform refinement of classes
- pAigNew = Ssw_SignalCorrespondenceRefine( p );
- // cleanup
- Ssw_FreeTempClasses( pvClasses, Aig_ManObjNumMax(pMiter) );
- Ssw_ManStop( p );
- Aig_ManStop( pMiter );
- return pAigNew;
-}
-
-/**Function*************************************************************
-
- Synopsis [Runs inductive SEC for the miter of two AIGs with node pairs defined.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Aig_Man_t * Ssw_SignalCorrespondeceTestPairs( Aig_Man_t * pAig )
-{
- Aig_Man_t * pAigNew, * pAigRes;
- Ssw_Pars_t Pars, * pPars = &Pars;
- Vec_Int_t * vIds1, * vIds2;
- Aig_Obj_t * pObj, * pRepr;
- int RetValue, i, clk = clock();
- Ssw_ManSetDefaultParams( pPars );
- pPars->fVerbose = 1;
- pAigNew = Ssw_SignalCorrespondence( pAig, pPars );
- // record pairs of equivalent nodes
- vIds1 = Vec_IntAlloc( Aig_ManObjNumMax(pAig) );
- vIds2 = Vec_IntAlloc( Aig_ManObjNumMax(pAig) );
- Aig_ManForEachObj( pAig, pObj, i )
- {
- pRepr = Aig_Regular((Aig_Obj_t *)pObj->pData);
- if ( pRepr == NULL )
- continue;
- if ( Aig_ManObj(pAigNew, pRepr->Id) == NULL )
- continue;
-/*
- if ( Aig_ObjIsNode(pObj) )
- printf( "n " );
- else if ( Saig_ObjIsPi(pAig, pObj) )
- printf( "pi " );
- else if ( Saig_ObjIsLo(pAig, pObj) )
- printf( "lo " );
-*/
- Vec_IntPush( vIds1, Aig_ObjId(pObj) );
- Vec_IntPush( vIds2, Aig_ObjId(pRepr) );
- }
- printf( "Recorded %d pairs (before: %d after: %d).\n", Vec_IntSize(vIds1), Aig_ManObjNumMax(pAig), Aig_ManObjNumMax(pAigNew) );
- // try the new AIGs
- pAigRes = Ssw_SignalCorrespondenceWithPairs( pAig, pAigNew, vIds1, vIds2, pPars );
- Vec_IntFree( vIds1 );
- Vec_IntFree( vIds2 );
- // report the results
- RetValue = Ssw_MiterStatus( pAigRes, 1 );
- if ( RetValue == 1 )
- printf( "Verification successful. " );
- else if ( RetValue == 0 )
- printf( "Verification failed with the counter-example. " );
- else
- printf( "Verification UNDECIDED. Remaining registers %d (total %d). ",
- Aig_ManRegNum(pAigRes), Aig_ManRegNum(pAig) + Aig_ManRegNum(pAigNew) );
- ABC_PRT( "Time", clock() - clk );
- // cleanup
- Aig_ManStop( pAigNew );
- return pAigRes;
-}
-
-/**Function*************************************************************
-
- Synopsis [Runs inductive SEC for the miter of two AIGs with node pairs defined.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Ssw_SecWithPairs( Aig_Man_t * pAig1, Aig_Man_t * pAig2, Vec_Int_t * vIds1, Vec_Int_t * vIds2, Ssw_Pars_t * pPars )
-{
- Aig_Man_t * pAigRes;
- int RetValue, clk = clock();
- assert( vIds1 != NULL && vIds2 != NULL );
- // try the new AIGs
- printf( "Performing specialized verification with node pairs.\n" );
- pAigRes = Ssw_SignalCorrespondenceWithPairs( pAig1, pAig2, vIds1, vIds2, pPars );
- // report the results
- RetValue = Ssw_MiterStatus( pAigRes, 1 );
- if ( RetValue == 1 )
- printf( "Verification successful. " );
- else if ( RetValue == 0 )
- printf( "Verification failed with a counter-example. " );
- else
- printf( "Verification UNDECIDED. The number of remaining regs = %d (total = %d). ",
- Aig_ManRegNum(pAigRes), Aig_ManRegNum(pAig1) + Aig_ManRegNum(pAig2) );
- ABC_PRT( "Time", clock() - clk );
- // cleanup
- Aig_ManStop( pAigRes );
- return RetValue;
-}
-
-/**Function*************************************************************
-
- Synopsis [Runs inductive SEC for the miter of two AIGs.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Ssw_SecGeneral( Aig_Man_t * pAig1, Aig_Man_t * pAig2, Ssw_Pars_t * pPars )
-{
- Aig_Man_t * pAigRes, * pMiter;
- int RetValue, clk = clock();
- // try the new AIGs
- printf( "Performing general verification without node pairs.\n" );
- pMiter = Saig_ManCreateMiter( pAig1, pAig2, 0 );
- Aig_ManCleanup( pMiter );
- pAigRes = Ssw_SignalCorrespondence( pMiter, pPars );
- Aig_ManStop( pMiter );
- // report the results
- RetValue = Ssw_MiterStatus( pAigRes, 1 );
- if ( RetValue == 1 )
- printf( "Verification successful. " );
- else if ( RetValue == 0 )
- printf( "Verification failed with a counter-example. " );
- else
- printf( "Verification UNDECIDED. The number of remaining regs = %d (total = %d). ",
- Aig_ManRegNum(pAigRes), Aig_ManRegNum(pAig1) + Aig_ManRegNum(pAig2) );
- ABC_PRT( "Time", clock() - clk );
- // cleanup
- Aig_ManStop( pAigRes );
- return RetValue;
-}
-
-/**Function*************************************************************
-
- Synopsis [Runs inductive SEC for the miter of two AIGs.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Ssw_SecGeneralMiter( Aig_Man_t * pMiter, Ssw_Pars_t * pPars )
-{
- Aig_Man_t * pAigRes;
- int RetValue, clk = clock();
- // try the new AIGs
-// printf( "Performing general verification without node pairs.\n" );
- pAigRes = Ssw_SignalCorrespondence( pMiter, pPars );
- // report the results
- RetValue = Ssw_MiterStatus( pAigRes, 1 );
- if ( RetValue == 1 )
- printf( "Verification successful. " );
- else if ( RetValue == 0 )
- printf( "Verification failed with a counter-example. " );
- else
- printf( "Verification UNDECIDED. The number of remaining regs = %d (total = %d). ",
- Aig_ManRegNum(pAigRes), Aig_ManRegNum(pMiter) );
- ABC_PRT( "Time", clock() - clk );
- // cleanup
- Aig_ManStop( pAigRes );
- return RetValue;
-}
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////
-
-
-ABC_NAMESPACE_IMPL_END
-