%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET516-6 : 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 : 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 02:12:08 PM UTC 2026
% Result : Unsatisfiable 0.12s 0.51s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET516-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.35 % Computer : n017.cluster.edu
% 0.08/0.35 % Model : x86_64 x86_64
% 0.08/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35 % Memory : 8046.5625MB
% 0.08/0.35 % OS : Linux 6.8.0-71-generic
% 0.08/0.36 % CPULimit : 300
% 0.08/0.36 % WCLimit : 300
% 0.08/0.36 % DateTime : Mon Sep 21 05:18:11 UTC 2026
% 0.08/0.36 % CPUTime :
% 0.12/0.37 % Drodi V4.1.1
% 0.12/0.51 % Refutation found
% 0.12/0.51 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.12/0.51 % SZS output start CNFRefutation for theBenchmark
% 0.12/0.51 fof(f8,axiom,(
% 0.12/0.51 (![U,X,Y]: (( ~ member(U,unordered_pair(X,Y))| U = X| U = Y ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f9,axiom,(
% 0.12/0.51 (![X,Y]: (( ~ member(X,universal_class)| member(X,unordered_pair(X,Y)) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f11,axiom,(
% 0.12/0.51 (![X,Y]: (member(unordered_pair(X,Y),universal_class) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f12,axiom,(
% 0.12/0.51 (![X]: (unordered_pair(X,X) = singleton(X) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f13,axiom,(
% 0.12/0.51 (![X,Y]: (unordered_pair(singleton(X),unordered_pair(X,singleton(Y))) = ordered_pair(X,Y) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f16,axiom,(
% 0.12/0.51 (![U,X,V,Y]: (( ~ member(U,X)| ~ member(V,Y)| member(ordered_pair(U,V),cross_product(X,Y)) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f19,axiom,(
% 0.12/0.51 (![X,Y]: (( ~ member(ordered_pair(X,Y),element_relation)| member(X,Y) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f20,axiom,(
% 0.12/0.51 (![X,Y]: (( ~ member(ordered_pair(X,Y),cross_product(universal_class,universal_class))| ~ member(X,Y)| member(ordered_pair(X,Y),element_relation) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f21,axiom,(
% 0.12/0.51 (![Z,X,Y]: (( ~ member(Z,intersection(X,Y))| member(Z,X) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f23,axiom,(
% 0.12/0.51 (![Z,X,Y]: (( ~ member(Z,X)| ~ member(Z,Y)| member(Z,intersection(X,Y)) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f24,axiom,(
% 0.12/0.51 (![Z,X]: (( ~ member(Z,complement(X))| ~ member(Z,X) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f25,axiom,(
% 0.12/0.51 (![Z,X]: (( ~ member(Z,universal_class)| member(Z,complement(X))| member(Z,X) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f30,axiom,(
% 0.12/0.51 (![X,Z]: (( restrict(X,singleton(Z),universal_class) != null_class| ~ member(Z,domain_of(X)) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f66,axiom,(
% 0.12/0.51 (![X]: (( X = null_class| member(regular(X),X) ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f67,axiom,(
% 0.12/0.51 (![X]: (( X = null_class| intersection(X,regular(X)) = null_class ) ))),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f113,negated_conjecture,(
% 0.12/0.51 singleton(x) = x ),
% 0.12/0.51 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.51 fof(f122,plain,(
% 0.12/0.51 ![U,Y]: ((![X]: (~member(U,unordered_pair(X,Y))|U=X))|U=Y)),
% 0.12/0.51 inference(miniscoping,[status(thm)],[f8])).
% 0.12/0.51 fof(f123,plain,(
% 0.12/0.51 ![X0,X1,X2]: (~member(X0,unordered_pair(X1,X2))|X0=X1|X0=X2)),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f122])).
% 0.12/0.51 fof(f124,plain,(
% 0.12/0.51 ![X]: (~member(X,universal_class)|(![Y]: member(X,unordered_pair(X,Y))))),
% 0.12/0.51 inference(miniscoping,[status(thm)],[f9])).
% 0.12/0.51 fof(f125,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,universal_class)|member(X0,unordered_pair(X0,X1)))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f124])).
% 0.12/0.51 fof(f128,plain,(
% 0.12/0.51 ![X0,X1]: (member(unordered_pair(X0,X1),universal_class))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f11])).
% 0.12/0.51 fof(f129,plain,(
% 0.12/0.51 ![X0]: (unordered_pair(X0,X0)=singleton(X0))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f12])).
% 0.12/0.51 fof(f130,plain,(
% 0.12/0.51 ![X0,X1]: (unordered_pair(singleton(X0),unordered_pair(X0,singleton(X1)))=ordered_pair(X0,X1))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f13])).
% 0.12/0.51 fof(f135,plain,(
% 0.12/0.51 ![X0,X1,X2,X3]: (~member(X0,X1)|~member(X2,X3)|member(ordered_pair(X0,X2),cross_product(X1,X3)))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f16])).
% 0.12/0.51 fof(f139,plain,(
% 0.12/0.51 ![X0,X1]: (~member(ordered_pair(X0,X1),element_relation)|member(X0,X1))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f19])).
% 0.12/0.51 fof(f140,plain,(
% 0.12/0.51 ![X0,X1]: (~member(ordered_pair(X0,X1),cross_product(universal_class,universal_class))|~member(X0,X1)|member(ordered_pair(X0,X1),element_relation))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f20])).
% 0.12/0.51 fof(f141,plain,(
% 0.12/0.51 ![Z,X]: ((![Y]: ~member(Z,intersection(X,Y)))|member(Z,X))),
% 0.12/0.51 inference(miniscoping,[status(thm)],[f21])).
% 0.12/0.51 fof(f142,plain,(
% 0.12/0.51 ![X0,X1,X2]: (~member(X0,intersection(X1,X2))|member(X0,X1))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f141])).
% 0.12/0.51 fof(f145,plain,(
% 0.12/0.51 ![X0,X1,X2]: (~member(X0,X1)|~member(X0,X2)|member(X0,intersection(X1,X2)))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f23])).
% 0.12/0.51 fof(f146,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,complement(X1))|~member(X0,X1))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f24])).
% 0.12/0.51 fof(f147,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,universal_class)|member(X0,complement(X1))|member(X0,X1))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f25])).
% 0.12/0.51 fof(f152,plain,(
% 0.12/0.51 ![X0,X1]: (~restrict(X0,singleton(X1),universal_class)=null_class|~member(X1,domain_of(X0)))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f30])).
% 0.12/0.51 fof(f188,plain,(
% 0.12/0.51 ![X0]: (X0=null_class|member(regular(X0),X0))),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f66])).
% 0.12/0.51 fof(f189,plain,(
% 0.12/0.51 ![X0]: (X0=null_class|intersection(X0,regular(X0))=null_class)),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f67])).
% 0.12/0.51 fof(f245,plain,(
% 0.12/0.51 singleton(x)=x),
% 0.12/0.51 inference(cnf_transformation,[status(thm)],[f113])).
% 0.12/0.51 fof(f253,plain,(
% 0.12/0.51 ![X0]: (member(singleton(X0),universal_class))),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f129,f128])).
% 0.12/0.51 fof(f254,plain,(
% 0.12/0.51 member(x,universal_class)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f245,f253])).
% 0.12/0.51 fof(f266,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,singleton(X1))|X0=X1|X0=X1)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f129,f123])).
% 0.12/0.51 fof(f267,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,singleton(X1))|X0=X1)),
% 0.12/0.51 inference(duplicate_literals_removal,[status(thm)],[f266])).
% 0.12/0.51 fof(f269,plain,(
% 0.12/0.51 ![X0]: (~member(X0,universal_class)|member(X0,singleton(X0)))),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f129,f125])).
% 0.12/0.51 fof(f278,plain,(
% 0.12/0.51 ![X0]: (~member(X0,x)|X0=x)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f245,f267])).
% 0.12/0.51 fof(f279,plain,(
% 0.12/0.51 regular(x)=x|x=null_class),
% 0.12/0.51 inference(resolution,[status(thm)],[f278,f188])).
% 0.12/0.51 fof(f294,plain,(
% 0.12/0.51 ![X0]: (unordered_pair(x,unordered_pair(x,singleton(X0)))=ordered_pair(x,X0))),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f245,f130])).
% 0.12/0.51 fof(f298,plain,(
% 0.12/0.51 ![X0,X1]: (~member(singleton(X0),universal_class)|member(singleton(X0),ordered_pair(X0,X1)))),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f130,f125])).
% 0.12/0.51 fof(f300,plain,(
% 0.12/0.51 ![X0,X1]: (member(ordered_pair(X0,X1),universal_class))),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f130,f128])).
% 0.12/0.51 fof(f303,plain,(
% 0.12/0.51 ![X0,X1]: (member(singleton(X0),ordered_pair(X0,X1)))),
% 0.12/0.51 inference(forward_subsumption_resolution,[status(thm)],[f298,f253])).
% 0.12/0.51 fof(f304,plain,(
% 0.12/0.51 unordered_pair(x,unordered_pair(x,x))=ordered_pair(x,x)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f245,f294])).
% 0.12/0.51 fof(f309,plain,(
% 0.12/0.51 unordered_pair(x,singleton(x))=ordered_pair(x,x)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f129,f304])).
% 0.12/0.51 fof(f310,plain,(
% 0.12/0.51 unordered_pair(x,x)=ordered_pair(x,x)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f245,f309])).
% 0.12/0.51 fof(f311,plain,(
% 0.12/0.51 singleton(x)=ordered_pair(x,x)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f129,f310])).
% 0.12/0.51 fof(f312,plain,(
% 0.12/0.51 x=ordered_pair(x,x)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f245,f311])).
% 0.12/0.51 fof(f316,plain,(
% 0.12/0.51 member(singleton(x),x)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f312,f303])).
% 0.12/0.51 fof(f317,plain,(
% 0.12/0.51 member(x,x)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f245,f316])).
% 0.12/0.51 fof(f333,plain,(
% 0.12/0.51 ![X0,X1]: (~member(x,X0)|~member(x,X1)|member(x,cross_product(X0,X1)))),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f312,f135])).
% 0.12/0.51 fof(f430,plain,(
% 0.12/0.51 x=null_class|intersection(x,x)=null_class|x=null_class),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f279,f189])).
% 0.12/0.51 fof(f432,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,null_class)|member(X0,X1)|X1=null_class)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f189,f142])).
% 0.12/0.51 fof(f433,plain,(
% 0.12/0.51 x=null_class|intersection(x,x)=null_class),
% 0.12/0.51 inference(duplicate_literals_removal,[status(thm)],[f430])).
% 0.12/0.51 fof(f454,plain,(
% 0.12/0.51 ~member(x,cross_product(universal_class,universal_class))|~member(x,x)|member(ordered_pair(x,x),element_relation)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f312,f140])).
% 0.12/0.51 fof(f455,plain,(
% 0.12/0.51 ~member(x,cross_product(universal_class,universal_class))|~member(x,x)|member(x,element_relation)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f312,f454])).
% 0.12/0.51 fof(f456,plain,(
% 0.12/0.51 ~member(x,cross_product(universal_class,universal_class))|member(x,element_relation)),
% 0.12/0.51 inference(forward_subsumption_resolution,[status(thm)],[f455,f317])).
% 0.12/0.51 fof(f459,plain,(
% 0.12/0.51 member(x,element_relation)|~member(x,universal_class)|~member(x,universal_class)),
% 0.12/0.51 inference(resolution,[status(thm)],[f456,f333])).
% 0.12/0.51 fof(f462,plain,(
% 0.12/0.51 member(x,element_relation)|~member(x,universal_class)),
% 0.12/0.51 inference(duplicate_literals_removal,[status(thm)],[f459])).
% 0.12/0.51 fof(f463,plain,(
% 0.12/0.51 member(x,element_relation)),
% 0.12/0.51 inference(forward_subsumption_resolution,[status(thm)],[f462,f254])).
% 0.12/0.51 fof(f600,plain,(
% 0.12/0.51 ![X0]: (~member(X0,x)|~member(X0,x)|member(X0,null_class)|x=null_class)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f433,f145])).
% 0.12/0.51 fof(f604,plain,(
% 0.12/0.51 ![X0]: (~member(X0,x)|member(X0,null_class)|x=null_class)),
% 0.12/0.51 inference(duplicate_literals_removal,[status(thm)],[f600])).
% 0.12/0.51 fof(f922,plain,(
% 0.12/0.51 ![X0,X1]: (member(X0,X1)|X1=null_class|~member(X0,x)|x=null_class)),
% 0.12/0.51 inference(resolution,[status(thm)],[f432,f604])).
% 0.12/0.51 fof(f947,plain,(
% 0.12/0.51 ![X0]: (member(x,X0)|X0=null_class|x=null_class)),
% 0.12/0.51 inference(resolution,[status(thm)],[f922,f317])).
% 0.12/0.51 fof(f990,plain,(
% 0.12/0.51 ![X0]: (complement(X0)=null_class|x=null_class|~member(x,X0))),
% 0.12/0.51 inference(resolution,[status(thm)],[f947,f146])).
% 0.12/0.51 fof(f994,plain,(
% 0.12/0.51 ![X0]: (singleton(X0)=null_class|x=null_class|x=X0)),
% 0.12/0.51 inference(resolution,[status(thm)],[f947,f267])).
% 0.12/0.51 fof(f1020,plain,(
% 0.12/0.51 ![X0]: (member(null_class,universal_class)|x=null_class|x=X0)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f994,f253])).
% 0.12/0.51 fof(f1057,plain,(
% 0.12/0.51 complement(x)=null_class|x=null_class),
% 0.12/0.51 inference(resolution,[status(thm)],[f990,f317])).
% 0.12/0.51 fof(f1116,plain,(
% 0.12/0.51 ![X0]: (~member(X0,universal_class)|member(X0,null_class)|member(X0,x)|x=null_class)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f1057,f147])).
% 0.12/0.51 fof(f1118,plain,(
% 0.12/0.51 ![X0]: (~member(X0,null_class)|~member(X0,x)|x=null_class)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f1057,f146])).
% 0.12/0.51 fof(f1119,plain,(
% 0.12/0.51 ![X0]: (~member(X0,universal_class)|member(X0,x)|x=null_class)),
% 0.12/0.51 inference(forward_subsumption_resolution,[status(thm)],[f1116,f432])).
% 0.12/0.51 fof(f1120,plain,(
% 0.12/0.51 ![X0]: (~member(X0,x)|x=null_class)),
% 0.12/0.51 inference(backward_subsumption_resolution,[status(thm)],[f604,f1123])).
% 0.12/0.51 fof(f1123,plain,(
% 0.12/0.51 ![X0]: (~member(X0,null_class)|x=null_class)),
% 0.12/0.51 inference(forward_subsumption_resolution,[status(thm)],[f1118,f432])).
% 0.12/0.51 fof(f1124,plain,(
% 0.12/0.51 ![X0]: (~member(X0,universal_class)|x=null_class)),
% 0.12/0.51 inference(backward_subsumption_resolution,[status(thm)],[f1119,f1120])).
% 0.12/0.51 fof(f1125,plain,(
% 0.12/0.51 ![X0]: (x=null_class|x=X0)),
% 0.12/0.51 inference(backward_subsumption_resolution,[status(thm)],[f1020,f1124])).
% 0.12/0.51 fof(f1133,plain,(
% 0.12/0.51 ~x=x|null_class=x),
% 0.12/0.51 inference(equality_factoring,[status(thm)],[f1125])).
% 0.12/0.51 fof(f1145,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,null_class)|member(X0,X1)|X1=x)),
% 0.12/0.51 inference(backward_demodulation,[status(thm)],[f1266,f432])).
% 0.12/0.51 fof(f1150,plain,(
% 0.12/0.51 ![X0,X1]: (~restrict(X0,singleton(X1),universal_class)=x|~member(X1,domain_of(X0)))),
% 0.12/0.51 inference(backward_demodulation,[status(thm)],[f1266,f152])).
% 0.12/0.51 fof(f1266,plain,(
% 0.12/0.51 null_class=x),
% 0.12/0.51 inference(trivial_equality_resolution,[status(thm)],[f1133])).
% 0.12/0.51 fof(f1269,plain,(
% 0.12/0.51 ![X0,X1]: (~member(X0,x)|member(X0,X1)|X1=x)),
% 0.12/0.51 inference(forward_demodulation,[status(thm)],[f1266,f1145])).
% 0.12/0.51 fof(f1368,plain,(
% 0.12/0.51 ![X0]: (member(x,X0)|X0=x)),
% 0.12/0.51 inference(resolution,[status(thm)],[f1269,f317])).
% 0.12/0.51 fof(f1391,plain,(
% 0.12/0.51 ![X0]: (singleton(X0)=x|x=X0)),
% 0.12/0.51 inference(resolution,[status(thm)],[f1368,f267])).
% 0.12/0.51 fof(f1404,plain,(
% 0.12/0.51 ![X0]: (~member(X0,universal_class)|member(X0,x)|x=X0)),
% 0.12/0.51 inference(paramodulation,[status(thm)],[f1391,f269])).
% 0.12/0.51 fof(f1419,plain,(
% 0.12/0.51 ![X0]: (~member(X0,universal_class)|x=X0)),
% 0.12/0.51 inference(forward_subsumption_resolution,[status(thm)],[f1404,f278])).
% 0.12/0.52 fof(f1448,plain,(
% 0.12/0.52 ![X0,X1]: (x=ordered_pair(X0,X1))),
% 0.12/0.52 inference(resolution,[status(thm)],[f1419,f300])).
% 0.12/0.52 fof(f1454,plain,(
% 0.12/0.52 ![X0]: (x=singleton(X0))),
% 0.12/0.52 inference(resolution,[status(thm)],[f1419,f253])).
% 0.12/0.52 fof(f1481,plain,(
% 0.12/0.52 ![X0,X1]: (~member(x,element_relation)|member(X0,X1))),
% 0.12/0.52 inference(backward_demodulation,[status(thm)],[f1448,f139])).
% 0.12/0.52 fof(f1566,plain,(
% 0.12/0.52 ![X0,X1]: (~restrict(X0,x,universal_class)=x|~member(X1,domain_of(X0)))),
% 0.12/0.52 inference(backward_demodulation,[status(thm)],[f1454,f1150])).
% 0.12/0.52 fof(f1580,plain,(
% 0.12/0.52 ![X0,X1]: (~member(X0,x)|X0=X1)),
% 0.12/0.52 inference(backward_demodulation,[status(thm)],[f1454,f267])).
% 0.12/0.52 fof(f1708,plain,(
% 0.12/0.52 ![X0,X1]: (member(X0,X1))),
% 0.12/0.52 inference(forward_subsumption_resolution,[status(thm)],[f1481,f463])).
% 0.12/0.52 fof(f1848,plain,(
% 0.12/0.52 ![X0]: (~restrict(X0,x,universal_class)=x)),
% 0.12/0.52 inference(forward_subsumption_resolution,[status(thm)],[f1566,f1708])).
% 0.12/0.52 fof(f1853,plain,(
% 0.12/0.52 ![X0,X1]: (X0=X1)),
% 0.12/0.52 inference(forward_subsumption_resolution,[status(thm)],[f1580,f1708])).
% 0.12/0.52 fof(f1854,plain,(
% 0.12/0.52 $false),
% 0.12/0.52 inference(backward_subsumption_resolution,[status(thm)],[f1848,f1853])).
% 0.12/0.52 % SZS output end CNFRefutation for theBenchmark.p
% 0.28/0.53 % Elapsed time: 0.159210 seconds
% 0.28/0.53 % CPU time: 0.950395 seconds
% 0.28/0.53 % Total memory used: 123.656 MB
% 0.28/0.53 % Net memory used: 121.684 MB
%------------------------------------------------------------------------------