only try scorr on small circuits

src/base/wlc/wlcAbs.c

@@ -1124,6 +1124,9 @@ int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
         if ( vClauses && pPars->fCheckCombUnsat )
         {
             Pdr_Man_t * pPdr2;
+            
+            if ( Aig_ManAndNum( pAig ) <= 20000 )
+            { 
                 Aig_Man_t * pAigScorr;
                 Ssw_Pars_t ScorrPars, * pScorrPars = &ScorrPars;
                 int nAnds;
@@ -1153,6 +1156,7 @@ int Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
                     Abc_Print( 1, "SCORR failed with %d ANDs. ", nAnds);
                     Abc_PrintTime( 1, "Time", Abc_Clock() - clk2 );
                 }
+            }
 
             clk2 = Abc_Clock();