%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET079-7 : 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 : n017.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 0.14s 0.43s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET079-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/0.40 % Computer : n017.cluster.edu
% 0.14/0.40 % Model : x86_64 x86_64
% 0.14/0.40 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.40 % Memory : 8046.5625MB
% 0.14/0.40 % OS : Linux 6.8.0-71-generic
% 0.14/0.40 % CPULimit : 300
% 0.14/0.40 % WCLimit : 300
% 0.14/0.40 % DateTime : Mon Sep 21 04:45:58 UTC 2026
% 0.14/0.40 % CPUTime :
% 0.14/0.42 % Drodi V4.1.1
% 0.14/0.43 % Refutation found
% 0.14/0.43 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.14/0.43 % SZS output start CNFRefutation for theBenchmark
% 0.14/0.43 fof(f12,axiom,(
% 0.14/0.43 (![X]: (unordered_pair(X,X) = singleton(X) ))),
% 0.14/0.43 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.14/0.43 fof(f116,axiom,(
% 0.14/0.43 (![X,Y]: (( ~ member(X,universal_class)| unordered_pair(X,Y) != null_class ) ))),
% 0.14/0.43 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.14/0.43 fof(f123,negated_conjecture,(
% 0.14/0.43 member(x,universal_class) ),
% 0.14/0.43 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.14/0.43 fof(f124,negated_conjecture,(
% 0.14/0.43 singleton(x) = null_class ),
% 0.14/0.43 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.14/0.43 fof(f140,plain,(
% 0.14/0.43 ![X0]: (unordered_pair(X0,X0)=singleton(X0))),
% 0.14/0.43 inference(cnf_transformation,[status(thm)],[f12])).
% 0.14/0.43 fof(f264,plain,(
% 0.14/0.43 ![X]: (~member(X,universal_class)|(![Y]: ~unordered_pair(X,Y)=null_class))),
% 0.14/0.43 inference(miniscoping,[status(thm)],[f116])).
% 0.14/0.43 fof(f265,plain,(
% 0.14/0.43 ![X0,X1]: (~member(X0,universal_class)|~unordered_pair(X0,X1)=null_class)),
% 0.14/0.43 inference(cnf_transformation,[status(thm)],[f264])).
% 0.14/0.43 fof(f274,plain,(
% 0.14/0.43 member(x,universal_class)),
% 0.14/0.43 inference(cnf_transformation,[status(thm)],[f123])).
% 0.14/0.43 fof(f275,plain,(
% 0.14/0.43 singleton(x)=null_class),
% 0.14/0.43 inference(cnf_transformation,[status(thm)],[f124])).
% 0.14/0.43 fof(f289,plain,(
% 0.14/0.43 ![X0]: (~member(X0,universal_class)|~singleton(X0)=null_class)),
% 0.14/0.43 inference(paramodulation,[status(thm)],[f140,f265])).
% 0.14/0.43 fof(f292,plain,(
% 0.14/0.43 ~singleton(x)=null_class),
% 0.14/0.43 inference(resolution,[status(thm)],[f289,f274])).
% 0.14/0.43 fof(f293,plain,(
% 0.14/0.43 ~null_class=null_class),
% 0.14/0.43 inference(forward_demodulation,[status(thm)],[f275,f292])).
% 0.14/0.43 fof(f294,plain,(
% 0.14/0.43 $false),
% 0.14/0.43 inference(trivial_equality_resolution,[status(thm)],[f293])).
% 0.14/0.43 % SZS output end CNFRefutation for theBenchmark.p
% 0.14/0.46 % Elapsed time: 0.050967 seconds
% 0.14/0.46 % CPU time: 0.084241 seconds
% 0.14/0.46 % Total memory used: 13.227 MB
% 0.14/0.46 % Net memory used: 13.220 MB
%------------------------------------------------------------------------------