%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET053-6 : 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 : n008.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 0.02s 0.39s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET053-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.03 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.35 % Computer : n008.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 04:48:55 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.02/0.36 % Drodi V4.1.1
% 0.02/0.39 % Refutation found
% 0.02/0.39 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.02/0.39 % SZS output start CNFRefutation for theBenchmark
% 0.02/0.39 fof(f1,axiom,(
% 0.02/0.39 (![X,Y,U]: (( ~ subclass(X,Y)| ~ member(U,X)| member(U,Y) ) ))),
% 0.02/0.39 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.02/0.39 fof(f4,axiom,(
% 0.02/0.39 (![X]: (subclass(X,universal_class) ))),
% 0.02/0.39 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.02/0.39 fof(f15,axiom,(
% 0.02/0.39 (![U,V,X,Y]: (( ~ member(ordered_pair(U,V),cross_product(X,Y))| member(V,Y) ) ))),
% 0.02/0.39 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.02/0.39 fof(f92,negated_conjecture,(
% 0.02/0.39 member(ordered_pair(u,v),cross_product(x,y)) ),
% 0.02/0.39 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.02/0.39 fof(f93,negated_conjecture,(
% 0.02/0.39 ~ member(v,universal_class) ),
% 0.02/0.39 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.02/0.39 fof(f94,plain,(
% 0.02/0.39 ![Y,U]: ((![X]: (~subclass(X,Y)|~member(U,X)))|member(U,Y))),
% 0.02/0.39 inference(miniscoping,[status(thm)],[f1])).
% 0.02/0.39 fof(f95,plain,(
% 0.02/0.39 ![X0,X1,X2]: (~subclass(X0,X1)|~member(X2,X0)|member(X2,X1))),
% 0.02/0.39 inference(cnf_transformation,[status(thm)],[f94])).
% 0.02/0.39 fof(f98,plain,(
% 0.02/0.39 ![X0]: (subclass(X0,universal_class))),
% 0.02/0.39 inference(cnf_transformation,[status(thm)],[f4])).
% 0.02/0.39 fof(f113,plain,(
% 0.02/0.39 ![V,Y]: ((![U,X]: ~member(ordered_pair(U,V),cross_product(X,Y)))|member(V,Y))),
% 0.02/0.39 inference(miniscoping,[status(thm)],[f15])).
% 0.02/0.39 fof(f114,plain,(
% 0.02/0.39 ![X0,X1,X2,X3]: (~member(ordered_pair(X0,X1),cross_product(X2,X3))|member(X1,X3))),
% 0.02/0.39 inference(cnf_transformation,[status(thm)],[f113])).
% 0.02/0.39 fof(f199,plain,(
% 0.02/0.39 member(ordered_pair(u,v),cross_product(x,y))),
% 0.02/0.39 inference(cnf_transformation,[status(thm)],[f92])).
% 0.02/0.39 fof(f200,plain,(
% 0.02/0.39 ~member(v,universal_class)),
% 0.02/0.39 inference(cnf_transformation,[status(thm)],[f93])).
% 0.02/0.39 fof(f208,plain,(
% 0.02/0.39 member(v,y)),
% 0.02/0.39 inference(resolution,[status(thm)],[f114,f199])).
% 0.02/0.39 fof(f211,plain,(
% 0.02/0.39 ![X0,X1]: (~member(X0,X1)|member(X0,universal_class))),
% 0.02/0.39 inference(resolution,[status(thm)],[f95,f98])).
% 0.02/0.39 fof(f233,plain,(
% 0.02/0.39 ![X0]: (~member(v,X0))),
% 0.02/0.39 inference(resolution,[status(thm)],[f211,f200])).
% 0.02/0.39 fof(f235,plain,(
% 0.02/0.39 $false),
% 0.02/0.39 inference(backward_subsumption_resolution,[status(thm)],[f208,f233])).
% 0.02/0.39 % SZS output end CNFRefutation for theBenchmark.p
% 0.02/0.42 % Elapsed time: 0.048020 seconds
% 0.02/0.42 % CPU time: 0.143389 seconds
% 0.02/0.42 % Total memory used: 104.951 MB
% 0.02/0.42 % Net memory used: 104.859 MB
%------------------------------------------------------------------------------