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-rw-r--r--src/aig/aig/aigTsim.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/aig/aig/aigTsim.c b/src/aig/aig/aigTsim.c
index c6a8b986..5e711ff6 100644
--- a/src/aig/aig/aigTsim.c
+++ b/src/aig/aig/aigTsim.c
@@ -499,7 +499,7 @@ Aig_Man_t * Aig_ManConstReduce( Aig_Man_t * p, int fUseMvSweep, int nFramesSymb,
{
Aig_Man_t * pTemp;
Vec_Ptr_t * vMap;
- while ( 1 )
+ while ( Aig_ManRegNum(p) > 0 )
{
if ( fUseMvSweep )
vMap = Saig_MvManSimulate( p, nFramesSymb, nFramesSatur, fVerbose, fVeryVerbose );