%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET052-6 : 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 : n003.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 02:11:21 PM UTC 2026
% Result : Unsatisfiable 0.12s 0.40s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET052-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.07/0.35 % Computer : n003.cluster.edu
% 0.07/0.35 % Model : x86_64 x86_64
% 0.07/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.35 % Memory : 8046.5625MB
% 0.07/0.35 % OS : Linux 6.8.0-71-generic
% 0.07/0.35 % CPULimit : 300
% 0.07/0.35 % WCLimit : 300
% 0.07/0.35 % DateTime : Mon Sep 21 04:49:47 UTC 2026
% 0.07/0.35 % CPUTime :
% 0.12/0.36 % Drodi V4.1.1
% 0.12/0.40 % Refutation found
% 0.12/0.40 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.12/0.40 % SZS output start CNFRefutation for theBenchmark
% 0.12/0.40 fof(f1,axiom,(
% 0.12/0.40 (![X,Y,U]: (( ~ subclass(X,Y)| ~ member(U,X)| member(U,Y) ) ))),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f4,axiom,(
% 0.12/0.40 (![X]: (subclass(X,universal_class) ))),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f14,axiom,(
% 0.12/0.40 (![U,V,X,Y]: (( ~ member(ordered_pair(U,V),cross_product(X,Y))| member(U,X) ) ))),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f92,negated_conjecture,(
% 0.12/0.40 member(ordered_pair(u,v),cross_product(x,y)) ),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f93,negated_conjecture,(
% 0.12/0.40 ~ member(u,universal_class) ),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f94,plain,(
% 0.12/0.40 ![Y,U]: ((![X]: (~subclass(X,Y)|~member(U,X)))|member(U,Y))),
% 0.12/0.40 inference(miniscoping,[status(thm)],[f1])).
% 0.12/0.40 fof(f95,plain,(
% 0.12/0.40 ![X0,X1,X2]: (~subclass(X0,X1)|~member(X2,X0)|member(X2,X1))),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f94])).
% 0.12/0.40 fof(f98,plain,(
% 0.12/0.40 ![X0]: (subclass(X0,universal_class))),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f4])).
% 0.12/0.40 fof(f111,plain,(
% 0.12/0.40 ![U,X]: ((![V,Y]: ~member(ordered_pair(U,V),cross_product(X,Y)))|member(U,X))),
% 0.12/0.40 inference(miniscoping,[status(thm)],[f14])).
% 0.12/0.40 fof(f112,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (~member(ordered_pair(X0,X1),cross_product(X2,X3))|member(X0,X2))),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f111])).
% 0.12/0.40 fof(f199,plain,(
% 0.12/0.40 member(ordered_pair(u,v),cross_product(x,y))),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f92])).
% 0.12/0.40 fof(f200,plain,(
% 0.12/0.40 ~member(u,universal_class)),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f93])).
% 0.12/0.40 fof(f204,plain,(
% 0.12/0.40 member(u,x)),
% 0.12/0.40 inference(resolution,[status(thm)],[f112,f199])).
% 0.12/0.40 fof(f285,plain,(
% 0.12/0.40 ![X0,X1]: (~member(X0,X1)|member(X0,universal_class))),
% 0.12/0.40 inference(resolution,[status(thm)],[f95,f98])).
% 0.12/0.40 fof(f514,plain,(
% 0.12/0.40 member(u,universal_class)),
% 0.12/0.40 inference(resolution,[status(thm)],[f285,f204])).
% 0.12/0.40 fof(f538,plain,(
% 0.12/0.40 $false),
% 0.12/0.40 inference(forward_subsumption_resolution,[status(thm)],[f514,f200])).
% 0.12/0.40 % SZS output end CNFRefutation for theBenchmark.p
% 0.12/0.43 % Elapsed time: 0.063269 seconds
% 0.12/0.43 % CPU time: 0.169904 seconds
% 0.12/0.43 % Total memory used: 105.373 MB
% 0.12/0.43 % Net memory used: 105.241 MB
%------------------------------------------------------------------------------