%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET080-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n010.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Sep 24 02:11:28 PM UTC 2026
% Result : Unsatisfiable 0.15s 0.39s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET080-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.37 % Computer : n010.cluster.edu
% 0.10/0.37 % Model : x86_64 x86_64
% 0.10/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37 % Memory : 8046.5625MB
% 0.10/0.37 % OS : Linux 6.8.0-71-generic
% 0.10/0.37 % CPULimit : 300
% 0.10/0.37 % WCLimit : 300
% 0.10/0.37 % DateTime : Mon Sep 21 04:50:56 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.15/0.38 % Drodi V4.1.1
% 0.15/0.39 % Refutation found
% 0.15/0.39 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.15/0.39 % SZS output start CNFRefutation for theBenchmark
% 0.15/0.39 fof(f107,axiom,(
% 0.15/0.39 member(null_class,universal_class) ),
% 0.15/0.39 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.15/0.39 fof(f122,axiom,(
% 0.15/0.39 (![X]: (( ~ member(X,universal_class)| member(X,singleton(X)) ) ))),
% 0.15/0.39 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.15/0.39 fof(f124,negated_conjecture,(
% 0.15/0.39 ~ member(null_class,singleton(null_class)) ),
% 0.15/0.39 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.15/0.39 fof(f250,plain,(
% 0.15/0.39 member(null_class,universal_class)),
% 0.15/0.39 inference(cnf_transformation,[status(thm)],[f107])).
% 0.15/0.39 fof(f273,plain,(
% 0.15/0.39 ![X0]: (~member(X0,universal_class)|member(X0,singleton(X0)))),
% 0.15/0.39 inference(cnf_transformation,[status(thm)],[f122])).
% 0.15/0.39 fof(f275,plain,(
% 0.15/0.39 ~member(null_class,singleton(null_class))),
% 0.15/0.39 inference(cnf_transformation,[status(thm)],[f124])).
% 0.15/0.39 fof(f329,plain,(
% 0.15/0.39 member(null_class,singleton(null_class))),
% 0.15/0.39 inference(resolution,[status(thm)],[f273,f250])).
% 0.15/0.39 fof(f336,plain,(
% 0.15/0.39 $false),
% 0.15/0.39 inference(forward_subsumption_resolution,[status(thm)],[f329,f275])).
% 0.15/0.39 % SZS output end CNFRefutation for theBenchmark.p
% 0.15/0.42 % Elapsed time: 0.038967 seconds
% 0.15/0.42 % CPU time: 0.131704 seconds
% 0.15/0.42 % Total memory used: 86.152 MB
% 0.15/0.42 % Net memory used: 86.084 MB
%------------------------------------------------------------------------------