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-rw-r--r--src/sat/bmc/bmcTulip.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/sat/bmc/bmcTulip.c b/src/sat/bmc/bmcTulip.c
index 8c32d699..cce3becd 100644
--- a/src/sat/bmc/bmcTulip.c
+++ b/src/sat/bmc/bmcTulip.c
@@ -239,7 +239,7 @@ Vec_Int_t * Gia_ManTulipPerform( Gia_Man_t * p, Vec_Int_t * vInit, int nFrames,
Gia_ManForEachPi( pM, pObj, i )
if ( i == Gia_ManRegNum(p) )
break;
- else if ( (Vec_IntEntry(vLits, i) & 2) && !Vec_IntEntry( vMap, pCnf->pVarNums[Gia_ObjId(pM, pObj)] ) )
+ else if ( (Vec_IntEntry(vLits, i) & 2) && Vec_IntEntry( vMap, pCnf->pVarNums[Gia_ObjId(pM, pObj)] ) )
Vec_IntWriteEntry( vLits, i, (Vec_IntEntry(vLits, i) & 1) );
Vec_IntFree( vMap );