%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET077+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n002.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 02:11:27 PM UTC 2026
% Result : Theorem 0.16s 5.50s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : SET077+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% 0.00/0.06 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.16/5.44 % Computer : n002.cluster.edu
% 0.16/5.44 % Model : x86_64 x86_64
% 0.16/5.44 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/5.44 % Memory : 8046.5625MB
% 0.16/5.44 % OS : Linux 6.8.0-71-generic
% 0.16/5.44 % CPULimit : 300
% 0.16/5.44 % WCLimit : 300
% 0.16/5.44 % DateTime : Mon Sep 21 04:52:52 UTC 2026
% 0.16/5.45 % CPUTime :
% 0.16/5.47 % Drodi V4.1.1
% 0.16/5.50 % Refutation found
% 0.16/5.50 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.16/5.50 % SZS output start CNFRefutation for theBenchmark
% 0.16/5.50 fof(f5,axiom,(
% 0.16/5.50 (! [X,Y] : member(unordered_pair(X,Y),universal_class) )),
% 0.16/5.50 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.16/5.50 fof(f6,axiom,(
% 0.16/5.50 (! [X] : singleton(X) = unordered_pair(X,X) )),
% 0.16/5.50 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.16/5.50 fof(f44,conjecture,(
% 0.16/5.50 (! [X] : member(singleton(X),universal_class) )),
% 0.16/5.50 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.16/5.50 fof(f45,negated_conjecture,(
% 0.16/5.50 ~((! [X] : member(singleton(X),universal_class) ))),
% 0.16/5.50 inference(negated_conjecture,[status(cth)],[f44])).
% 0.16/5.50 fof(f65,plain,(
% 0.16/5.50 ![X0,X1]: (member(unordered_pair(X0,X1),universal_class))),
% 0.16/5.50 inference(cnf_transformation,[status(thm)],[f5])).
% 0.16/5.50 fof(f66,plain,(
% 0.16/5.50 ![X0]: (singleton(X0)=unordered_pair(X0,X0))),
% 0.16/5.50 inference(cnf_transformation,[status(thm)],[f6])).
% 0.16/5.50 fof(f191,plain,(
% 0.16/5.50 (?[X]: ~member(singleton(X),universal_class))),
% 0.16/5.50 inference(pre_NNF_transformation,[status(thm)],[f45])).
% 0.16/5.50 fof(f192,plain,(
% 0.16/5.50 ~member(singleton(sK7_skl),universal_class)),
% 0.16/5.50 inference(skolemize,[status(esa),new_symbols(skolem,[sK7_skl]),skolemize(X,sK7_skl)],[f191])).
% 0.16/5.50 fof(f193,plain,(
% 0.16/5.50 ~member(singleton(sK7_skl),universal_class)),
% 0.16/5.50 inference(cnf_transformation,[status(thm)],[f192])).
% 0.16/5.50 fof(f202,plain,(
% 0.16/5.50 ![X0]: (member(singleton(X0),universal_class))),
% 0.16/5.50 inference(paramodulation,[status(thm)],[f66,f65])).
% 0.16/5.50 fof(f204,plain,(
% 0.16/5.50 $false),
% 0.16/5.50 inference(backward_subsumption_resolution,[status(thm)],[f193,f202])).
% 0.16/5.50 % SZS output end CNFRefutation for theBenchmark.p
% 0.21/5.54 % Elapsed time: 0.072063 seconds
% 0.21/5.54 % CPU time: 0.204429 seconds
% 0.21/5.54 % Total memory used: 104.452 MB
% 0.21/5.54 % Net memory used: 104.366 MB
%------------------------------------------------------------------------------