%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET883+1 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n020.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 02:12:48 PM UTC 2026
% Result : Theorem 0.15s 0.39s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET883+1 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n020.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Mon Sep 21 05:43:47 UTC 2026
% 0.10/0.36 % CPUTime :
% 0.15/0.37 % Drodi V4.1.1
% 0.15/0.39 % Refutation found
% 0.15/0.39 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.15/0.39 % SZS output start CNFRefutation for theBenchmark
% 0.15/0.39 fof(f4,conjecture,(
% 0.15/0.39 (! [A,B] :( subset(singleton(A),singleton(B))=> A = B ) )),
% 0.15/0.39 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.15/0.39 fof(f5,negated_conjecture,(
% 0.15/0.39 ~((! [A,B] :( subset(singleton(A),singleton(B))=> A = B ) ))),
% 0.15/0.39 inference(negated_conjecture,[status(cth)],[f4])).
% 0.15/0.39 fof(f6,axiom,(
% 0.15/0.39 (! [A,B] :( subset(singleton(A),singleton(B))=> A = B ) )),
% 0.15/0.39 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.15/0.39 fof(f13,plain,(
% 0.15/0.39 (?[A,B]: (subset(singleton(A),singleton(B))&~A=B))),
% 0.15/0.39 inference(pre_NNF_transformation,[status(thm)],[f5])).
% 0.15/0.39 fof(f14,plain,(
% 0.15/0.39 (subset(singleton(sK2_skl),singleton(sK3_skl))&~sK2_skl=sK3_skl)),
% 0.15/0.39 inference(skolemize,[status(esa),new_symbols(skolem,[sK2_skl,sK3_skl]),skolemize(A,sK2_skl),skolemize(B,sK3_skl)],[f13])).
% 0.15/0.39 fof(f15,plain,(
% 0.15/0.39 subset(singleton(sK2_skl),singleton(sK3_skl))),
% 0.15/0.39 inference(cnf_transformation,[status(thm)],[f14])).
% 0.15/0.39 fof(f16,plain,(
% 0.15/0.39 ~sK2_skl=sK3_skl),
% 0.15/0.39 inference(cnf_transformation,[status(thm)],[f14])).
% 0.15/0.39 fof(f17,plain,(
% 0.15/0.39 ![A,B]: (~subset(singleton(A),singleton(B))|A=B)),
% 0.15/0.39 inference(pre_NNF_transformation,[status(thm)],[f6])).
% 0.15/0.39 fof(f18,plain,(
% 0.15/0.39 ![X0,X1]: (~subset(singleton(X0),singleton(X1))|X0=X1)),
% 0.15/0.39 inference(cnf_transformation,[status(thm)],[f17])).
% 0.15/0.39 fof(f19,plain,(
% 0.15/0.39 sK2_skl=sK3_skl),
% 0.15/0.39 inference(resolution,[status(thm)],[f18,f15])).
% 0.15/0.39 fof(f21,plain,(
% 0.15/0.39 $false),
% 0.15/0.39 inference(forward_subsumption_resolution,[status(thm)],[f19,f16])).
% 0.15/0.39 % SZS output end CNFRefutation for theBenchmark.p
% 0.15/0.42 % Elapsed time: 0.042592 seconds
% 0.15/0.42 % CPU time: 0.119786 seconds
% 0.15/0.42 % Total memory used: 43.909 MB
% 0.15/0.42 % Net memory used: 43.315 MB
%------------------------------------------------------------------------------