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-rw-r--r--src/proof/ssc/sscSat.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/proof/ssc/sscSat.c b/src/proof/ssc/sscSat.c
index ca0933ec..c029a541 100644
--- a/src/proof/ssc/sscSat.c
+++ b/src/proof/ssc/sscSat.c
@@ -349,6 +349,7 @@ int Ssc_ManCheckEquivalence( Ssc_Man_t * p, int iRepr, int iNode, int fCompl )
{
int pLitsSat[2], RetValue;
abctime clk;
+ assert( iRepr != iNode );
assert( iRepr < iNode );
// if ( p->nTimeOut )
// sat_solver_set_runtime_limit( p->pSat, p->nTimeOut * CLOCKS_PER_SEC + Abc_Clock() );