Verbose level: 1 Formula AG((p20 IMPLIES EF(~p20))) holds Encoding time: 0.003 sec Verification time: 496.6 sec Encoding memory: 10.35 MB Memory (total): 24.96 MB TOTAL time: 496.7 sec STAT; 0.003 ; 496.6 ; 10.35 ; 24.96 ; 496.7