%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET083-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/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 02:11:29 PM UTC 2026
% Result : Unsatisfiable 0.09s 0.41s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET083-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.35 % Computer : n010.cluster.edu
% 0.09/0.35 % Model : x86_64 x86_64
% 0.09/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.35 % Memory : 8046.5625MB
% 0.09/0.35 % OS : Linux 6.8.0-71-generic
% 0.09/0.35 % CPULimit : 300
% 0.09/0.35 % WCLimit : 300
% 0.09/0.35 % DateTime : Mon Sep 21 04:51:11 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.37 % Drodi V4.1.1
% 0.09/0.41 % Refutation found
% 0.09/0.41 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.09/0.41 % SZS output start CNFRefutation for theBenchmark
% 0.09/0.41 fof(f122,axiom,(
% 0.09/0.41 (![X]: (( ~ member(X,universal_class)| member(X,singleton(X)) ) ))),
% 0.09/0.41 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.09/0.41 fof(f125,axiom,(
% 0.09/0.41 (![Y,X]: (( ~ member(Y,singleton(X))| Y = X ) ))),
% 0.09/0.41 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.09/0.41 fof(f127,negated_conjecture,(
% 0.09/0.41 singleton(x) = singleton(y) ),
% 0.09/0.41 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.09/0.41 fof(f128,negated_conjecture,(
% 0.09/0.41 member(x,universal_class) ),
% 0.09/0.41 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.09/0.41 fof(f129,negated_conjecture,(
% 0.09/0.41 x != y ),
% 0.09/0.41 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.09/0.41 fof(f278,plain,(
% 0.09/0.41 ![X0]: (~member(X0,universal_class)|member(X0,singleton(X0)))),
% 0.09/0.41 inference(cnf_transformation,[status(thm)],[f122])).
% 0.09/0.41 fof(f281,plain,(
% 0.09/0.41 ![X0,X1]: (~member(X0,singleton(X1))|X0=X1)),
% 0.09/0.41 inference(cnf_transformation,[status(thm)],[f125])).
% 0.09/0.41 fof(f283,plain,(
% 0.09/0.41 singleton(x)=singleton(y)),
% 0.09/0.41 inference(cnf_transformation,[status(thm)],[f127])).
% 0.09/0.41 fof(f284,plain,(
% 0.09/0.41 member(x,universal_class)),
% 0.09/0.41 inference(cnf_transformation,[status(thm)],[f128])).
% 0.09/0.41 fof(f285,plain,(
% 0.09/0.41 ~x=y),
% 0.09/0.41 inference(cnf_transformation,[status(thm)],[f129])).
% 0.09/0.41 fof(f325,plain,(
% 0.09/0.41 ![X0]: (~member(X0,singleton(x))|X0=y)),
% 0.09/0.41 inference(paramodulation,[status(thm)],[f283,f281])).
% 0.09/0.41 fof(f369,plain,(
% 0.09/0.41 x=y|~member(x,universal_class)),
% 0.09/0.41 inference(resolution,[status(thm)],[f325,f278])).
% 0.09/0.41 fof(f371,plain,(
% 0.09/0.41 ~member(x,universal_class)),
% 0.09/0.41 inference(forward_subsumption_resolution,[status(thm)],[f369,f285])).
% 0.09/0.41 fof(f372,plain,(
% 0.09/0.41 $false),
% 0.09/0.41 inference(forward_subsumption_resolution,[status(thm)],[f371,f284])).
% 0.09/0.41 % SZS output end CNFRefutation for theBenchmark.p
% 0.09/0.43 % Elapsed time: 0.068642 seconds
% 0.09/0.43 % CPU time: 0.161701 seconds
% 0.09/0.43 % Total memory used: 105.966 MB
% 0.09/0.43 % Net memory used: 105.907 MB
%------------------------------------------------------------------------------