diff --git a/src/sat/bmc/bmcBmcS.c b/src/sat/bmc/bmcBmcS.c
index baadd06d0..d4de90f35 100644
--- a/src/sat/bmc/bmcBmcS.c
+++ b/src/sat/bmc/bmcBmcS.c
@@ -828,6 +828,7 @@ int Bmcs_ManPerformMulti( Gia_Man_t * pGia, Bmc_AndPar_t * pPars )
         ThData[i].pSat = NULL;
         ThData[i].fWorking = 1;
     }
+    p->pSat = NULL;
     Bmcs_ManStop( p );
     if ( RetValue == -1 && !pPars->fNotVerbose )
         printf( "No output failed in %d frames.  ", f );