Multi-output property solver.

src/sat/bmc/bmcMulti.c

+/**CFile****************************************************************
+
+  FileName    [bmcMulti.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [SAT-based bounded model checking.]
+
+  Synopsis    [Proving multi-output properties.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: bmcMulti.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "bmc.h"
+#include "proof/ssw/ssw.h"
+#include "aig/gia/giaAig.h"
+
+ABC_NAMESPACE_IMPL_START
+
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Divides outputs into solved and unsolved.]
+
+  Description [Return array of unsolved outputs to extract into a new AIG.
+  Updates the resulting CEXes (vCexesOut) and current output map (vOutMap).]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Int_t * Gia_ManProcessOutputs( Vec_Ptr_t * vCexesIn, Vec_Ptr_t * vCexesOut, Vec_Int_t * vOutMap )
+{
+    Abc_Cex_t * pCex; 
+    Vec_Int_t * vLeftOver;
+    int i, iOut;
+    assert( Vec_PtrSize(vCexesIn) == Vec_IntSize(vOutMap) );
+    vLeftOver = Vec_IntAlloc( Vec_PtrSize(vCexesIn) );
+    Vec_IntForEachEntry( vOutMap, iOut, i )
+    {
+        assert( Vec_PtrEntry(vCexesOut, iOut) == NULL );
+        pCex = (Abc_Cex_t *)Vec_PtrEntry( vCexesIn, i );
+        if ( pCex ) // found a CEX for output iOut
+        {
+            Vec_PtrWriteEntry( vCexesIn, i, NULL );
+            Vec_PtrWriteEntry( vCexesOut, iOut, pCex );
+        }
+        else // still unsolved
+        {
+            Vec_IntWriteEntry( vOutMap, Vec_IntSize(vLeftOver), iOut );
+            Vec_IntPush( vLeftOver, i );
+        }
+    }
+    Vec_IntShrink( vOutMap, Vec_IntSize(vLeftOver) );
+    return vLeftOver;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Gia_ManMultiReport( Aig_Man_t * p, char * pStr, int nTotalPo, int nTotalSize, abctime clkStart )
+{
+    printf( "%3s : ", pStr );
+    printf( "PI =%6d  ", Saig_ManPiNum(p) );
+    printf( "PO =%6d  ", Saig_ManPoNum(p) );
+    printf( "FF =%7d  ", Saig_ManRegNum(p) );
+    printf( "ND =%7d  ", Aig_ManNodeNum(p) );
+    printf( "Solved =%7d (%5.1f %%)  ", nTotalPo-Saig_ManPoNum(p), 100.0*(nTotalPo-Saig_ManPoNum(p))/Abc_MaxInt(1, nTotalPo) );
+    printf( "Size   =%7d (%5.1f %%)  ", Aig_ManObjNum(p),          100.0*Aig_ManObjNum(p)/Abc_MaxInt(1, nTotalSize) );
+    Abc_PrintTime( 1, "Time", Abc_Clock() - clkStart );
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Ptr_t * Gia_ManMultiProveAig( Aig_Man_t * p, int TimeOutGlo, int TimeOutLoc, int TimeOutInc, int fVerbose )
+{
+    Ssw_RarPars_t ParsSim, * pParsSim = &ParsSim;
+    Saig_ParBmc_t ParsBmc, * pParsBmc = &ParsBmc;
+    Vec_Int_t * vOutMap, * vLeftOver;
+    Vec_Ptr_t * vCexes;
+    Aig_Man_t * pTemp;
+    abctime clkStart = Abc_Clock();
+    int nTimeToStop  = TimeOutGlo ? TimeOutGlo * CLOCKS_PER_SEC + Abc_Clock(): 0;
+    int nTotalPo     = Saig_ManPoNum(p);
+    int nTotalSize   = Aig_ManObjNum(p);
+    int i, RetValue  = -1;
+    // create output map
+    vOutMap = Vec_IntStartNatural( Saig_ManPoNum(p) ); // maps current outputs into their original IDs
+    vCexes  = Vec_PtrStart( Saig_ManPoNum(p) );        // maps solved outputs into their CEXes (or markers)
+    for ( i = 0; i < 1000; i++ )
+    {
+        // synthesize
+//        p = Gia_ManMultiProveSyn( pTemp = p );
+//        Aig_ManStop( pTemp );
+//        if ( fVerbose )
+//            Gia_ManMultiReport( p, "SYN", nTotalPo, nTotalSize, clkStart );
+
+        // perform SIM3
+        Ssw_RarSetDefaultParams( pParsSim );
+        pParsSim->fSolveAll = 1;
+        pParsSim->fNotVerbose = 1;
+        pParsSim->fSilent = 1;
+        pParsSim->TimeOut = TimeOutLoc;
+        pParsSim->nRandSeed = (i * 17) % 500;
+        RetValue *= Ssw_RarSimulate( p, pParsSim );
+        // sort outputs
+        if ( p->vSeqModelVec )
+        {
+            vLeftOver = Gia_ManProcessOutputs( p->vSeqModelVec, vCexes, vOutMap );
+            if ( Vec_IntSize(vLeftOver) == 0 )
+                break;
+            // remove solved        
+            p = Saig_ManDupCones( pTemp = p, Vec_IntArray(vLeftOver), Vec_IntSize(vLeftOver) );
+            Vec_IntFree( vLeftOver );
+            Aig_ManStop( pTemp );
+        }
+//        if ( fVerbose )
+            Gia_ManMultiReport( p, "SIM", nTotalPo, nTotalSize, clkStart );
+
+        // perform BMC
+        Saig_ParBmcSetDefaultParams( pParsBmc );
+        pParsBmc->fSolveAll = 1;
+        pParsBmc->fNotVerbose = 1;
+        pParsBmc->fSilent = 1;
+        pParsBmc->nTimeOut = TimeOutLoc;
+        RetValue *= Saig_ManBmcScalable( p, pParsBmc );
+        // sort outputs
+        if ( p->vSeqModelVec )
+        {
+            vLeftOver = Gia_ManProcessOutputs( p->vSeqModelVec, vCexes, vOutMap );
+            if ( Vec_IntSize(vLeftOver) == 0 )
+                break;
+            // remove solved        
+            p = Saig_ManDupCones( pTemp = p, Vec_IntArray(vLeftOver), Vec_IntSize(vLeftOver) );
+            Vec_IntFree( vLeftOver );
+            Aig_ManStop( pTemp );
+        }
+//        if ( fVerbose )
+            Gia_ManMultiReport( p, "BMC", nTotalPo, nTotalSize, clkStart );
+
+        // increase timeout
+        TimeOutLoc *= TimeOutInc;
+        if ( nTimeToStop && Abc_Clock() > nTimeToStop )
+        {
+            printf( "Global timeout (%d sec) is reached.\n", TimeOutGlo );
+            break;
+        }
+    }
+    Vec_IntFree( vOutMap );
+    Aig_ManStop( p );
+    return vCexes;
+}
+int Gia_ManMultiProve( Gia_Man_t * p, int fVerbose )
+{
+    Aig_Man_t * pAig;
+    if ( p->vSeqModelVec )
+        Vec_PtrFreeFree( p->vSeqModelVec ), p->vSeqModelVec = NULL;
+    pAig = Gia_ManToAig( p, 0 );
+    p->vSeqModelVec = Gia_ManMultiProveAig( pAig, 30, 2, 2, fVerbose );
+    assert( Vec_PtrSize(p->vSeqModelVec) == Gia_ManPoNum(p) );
+//    Aig_ManStop( pAig );
+    return Vec_PtrCountZero(p->vSeqModelVec) == Vec_PtrSize(p->vSeqModelVec) ? -1 : 0;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+