Verbose level: 1 Formula AG((p20 IMPLIES EF(~p20))) holds Encoding time: 0.003 sec Verification time: 72.7 sec Encoding memory: 10.51 MB Memory (total): 25.17 MB TOTAL time: 72.7 sec STAT; 0.003 ; 72.7 ; 10.51 ; 25.17 ; 72.7