%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SWC347+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n001.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 02:42:13 PM UTC 2026
% Result : Theorem 0.17s 0.59s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : SWC347+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.06 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.17/0.44 % Computer : n001.cluster.edu
% 0.17/0.44 % Model : x86_64 x86_64
% 0.17/0.44 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.17/0.44 % Memory : 8046.5625MB
% 0.17/0.44 % OS : Linux 6.8.0-71-generic
% 0.17/0.44 % CPULimit : 300
% 0.17/0.44 % WCLimit : 300
% 0.17/0.44 % DateTime : Mon Sep 21 08:23:29 UTC 2026
% 0.17/0.44 % CPUTime :
% 0.17/0.49 % Drodi V4.1.1
% 0.17/0.59 % Refutation found
% 0.17/0.59 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.17/0.59 % SZS output start CNFRefutation for theBenchmark
% 0.17/0.59 fof(f7,axiom,(
% 0.17/0.59 (! [U] :( ssList(U)=> (! [V] :( ssList(V)=> ( segmentP(U,V)<=> (? [W] :( ssList(W)& (? [X] :( ssList(X)& app(app(W,V),X) = U ) )) )) ) )) )),
% 0.17/0.59 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.17/0.59 fof(f17,axiom,(
% 0.17/0.59 ssList(nil) ),
% 0.17/0.59 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.17/0.59 fof(f28,axiom,(
% 0.17/0.59 (! [U] :( ssList(U)=> app(nil,U) = U ) )),
% 0.17/0.59 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.17/0.59 fof(f96,conjecture,(
% 0.17/0.59 (! [U] :( ssList(U)=> (! [V] :( ssList(V)=> (! [W] :( ssList(W)=> (! [X] :( ssList(X)=> ( V != X| U != W| (! [Y] :( ssList(Y)=> ( app(W,Y) != X| ~ strictorderedP(W)| (? [Z] :( ssItem(Z)& (? [X1] :( ssList(X1)& app(cons(Z,nil),X1) = Y& (? [X2] :( ssItem(X2)& (? [X3] :( ssList(X3)& app(X3,cons(X2,nil)) = W& lt(X2,Z) ) )) )) )) )) ))| ( nil != X& nil = W )| ( segmentP(V,U)& strictorderedP(U) ) ) ) )) )) )) )),
% 0.17/0.59 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.17/0.59 fof(f97,negated_conjecture,(
% 0.17/0.59 ~((! [U] :( ssList(U)=> (! [V] :( ssList(V)=> (! [W] :( ssList(W)=> (! [X] :( ssList(X)=> ( V != X| U != W| (! [Y] :( ssList(Y)=> ( app(W,Y) != X| ~ strictorderedP(W)| (? [Z] :( ssItem(Z)& (? [X1] :( ssList(X1)& app(cons(Z,nil),X1) = Y& (? [X2] :( ssItem(X2)& (? [X3] :( ssList(X3)& app(X3,cons(X2,nil)) = W& lt(X2,Z) ) )) )) )) )) ))| ( nil != X& nil = W )| ( segmentP(V,U)& strictorderedP(U) ) ) ) )) )) )) ))),
% 0.17/0.59 inference(negated_conjecture,[status(cth)],[f96])).
% 0.17/0.59 fof(f131,plain,(
% 0.17/0.59 ![U]: (~ssList(U)|(![V]: (~ssList(V)|(segmentP(U,V)<=>(?[W]: (ssList(W)&(?[X]: (ssList(X)&app(app(W,V),X)=U))))))))),
% 0.17/0.59 inference(pre_NNF_transformation,[status(thm)],[f7])).
% 0.17/0.59 fof(f132,plain,(
% 0.17/0.59 ![U]: (~ssList(U)|(![V]: (~ssList(V)|((~segmentP(U,V)|(?[W]: (ssList(W)&(?[X]: (ssList(X)&app(app(W,V),X)=U)))))&(segmentP(U,V)|(![W]: (~ssList(W)|(![X]: (~ssList(X)|~app(app(W,V),X)=U)))))))))),
% 0.17/0.59 inference(NNF_transformation,[status(thm)],[f131])).
% 0.17/0.59 fof(f133,plain,(
% 0.17/0.59 ![U]: (~ssList(U)|(![V]: (~ssList(V)|((~segmentP(U,V)|(ssList(sK7_skl(V,U))&(ssList(sK8_skl(V,U))&app(app(sK7_skl(V,U),V),sK8_skl(V,U))=U)))&(segmentP(U,V)|(![W]: (~ssList(W)|(![X]: (~ssList(X)|~app(app(W,V),X)=U)))))))))),
% 0.17/0.59 inference(skolemize,[status(esa),new_symbols(skolem,[sK7_skl,sK8_skl]),skolemize(W,sK7_skl(V,U)),skolemize(X,sK8_skl(V,U))],[f132])).
% 0.17/0.59 fof(f137,plain,(
% 0.17/0.59 ![X0,X1,X2,X3]: (~ssList(X0)|~ssList(X1)|segmentP(X0,X1)|~ssList(X2)|~ssList(X3)|~app(app(X2,X1),X3)=X0)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f133])).
% 0.17/0.59 fof(f223,plain,(
% 0.17/0.59 ssList(nil)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f17])).
% 0.17/0.59 fof(f248,plain,(
% 0.17/0.59 ![U]: (~ssList(U)|app(nil,U)=U)),
% 0.17/0.59 inference(pre_NNF_transformation,[status(thm)],[f28])).
% 0.17/0.59 fof(f249,plain,(
% 0.17/0.59 ![X0]: (~ssList(X0)|app(nil,X0)=X0)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f248])).
% 0.17/0.59 fof(f415,plain,(
% 0.17/0.59 (?[U]: (ssList(U)&(?[V]: (ssList(V)&(?[W]: (ssList(W)&(?[X]: (ssList(X)&((((V=X&U=W)&(?[Y]: (ssList(Y)&((app(W,Y)=X&strictorderedP(W))&(![Z]: (~ssItem(Z)|(![X1]: ((~ssList(X1)|~app(cons(Z,nil),X1)=Y)|(![X2]: (~ssItem(X2)|(![X3]: ((~ssList(X3)|~app(X3,cons(X2,nil))=W)|~lt(X2,Z)))))))))))))&(nil=X|~nil=W))&(~segmentP(V,U)|~strictorderedP(U)))))))))))),
% 0.17/0.59 inference(pre_NNF_transformation,[status(thm)],[f97])).
% 0.17/0.59 fof(f416,plain,(
% 0.17/0.59 ?[U]: (ssList(U)&(?[V]: (ssList(V)&(?[W]: (ssList(W)&(?[X]: (ssList(X)&((((V=X&U=W)&(?[Y]: (ssList(Y)&((app(W,Y)=X&strictorderedP(W))&(![Z]: (~ssItem(Z)|((![X1]: (~ssList(X1)|~app(cons(Z,nil),X1)=Y))|(![X2]: (~ssItem(X2)|((![X3]: (~ssList(X3)|~app(X3,cons(X2,nil))=W))|~lt(X2,Z)))))))))))&(nil=X|~nil=W))&(~segmentP(V,U)|~strictorderedP(U))))))))))),
% 0.17/0.59 inference(miniscoping,[status(thm)],[f415])).
% 0.17/0.59 fof(f417,plain,(
% 0.17/0.59 (ssList(sK47_skl)&(ssList(sK48_skl)&(ssList(sK49_skl)&(ssList(sK50_skl)&((((sK48_skl=sK50_skl&sK47_skl=sK49_skl)&(ssList(sK51_skl)&((app(sK49_skl,sK51_skl)=sK50_skl&strictorderedP(sK49_skl))&(![Z]: (~ssItem(Z)|((![X1]: (~ssList(X1)|~app(cons(Z,nil),X1)=sK51_skl))|(![X2]: (~ssItem(X2)|((![X3]: (~ssList(X3)|~app(X3,cons(X2,nil))=sK49_skl))|~lt(X2,Z))))))))))&(nil=sK50_skl|~nil=sK49_skl))&(~segmentP(sK48_skl,sK47_skl)|~strictorderedP(sK47_skl)))))))),
% 0.17/0.59 inference(skolemize,[status(esa),new_symbols(skolem,[sK47_skl,sK48_skl,sK49_skl,sK50_skl,sK51_skl]),skolemize(U,sK47_skl),skolemize(V,sK48_skl),skolemize(W,sK49_skl),skolemize(X,sK50_skl),skolemize(Y,sK51_skl)],[f416])).
% 0.17/0.59 fof(f418,plain,(
% 0.17/0.59 ssList(sK47_skl)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f419,plain,(
% 0.17/0.59 ssList(sK48_skl)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f422,plain,(
% 0.17/0.59 sK48_skl=sK50_skl),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f423,plain,(
% 0.17/0.59 sK47_skl=sK49_skl),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f424,plain,(
% 0.17/0.59 ssList(sK51_skl)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f425,plain,(
% 0.17/0.59 app(sK49_skl,sK51_skl)=sK50_skl),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f426,plain,(
% 0.17/0.59 strictorderedP(sK49_skl)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f429,plain,(
% 0.17/0.59 ~segmentP(sK48_skl,sK47_skl)|~strictorderedP(sK47_skl)),
% 0.17/0.59 inference(cnf_transformation,[status(thm)],[f417])).
% 0.17/0.59 fof(f437,definition,(
% 0.17/0.59 sQ2_spl <=> (segmentP(sK48_skl,sK47_skl))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ2_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f439,plain,(
% 0.17/0.59 ~segmentP(sK48_skl,sK47_skl)|sQ2_spl),
% 0.17/0.59 inference(component_clause,[status(thm)],[f437])).
% 0.17/0.59 fof(f440,definition,(
% 0.17/0.59 sQ3_spl <=> (strictorderedP(sK47_skl))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ3_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f442,plain,(
% 0.17/0.59 ~strictorderedP(sK47_skl)|sQ3_spl),
% 0.17/0.59 inference(component_clause,[status(thm)],[f440])).
% 0.17/0.59 fof(f443,plain,(
% 0.17/0.59 ~sQ2_spl|~sQ3_spl),
% 0.17/0.59 inference(split_clause,[status(thm)],[f429,f437,f440])).
% 0.17/0.59 fof(f458,plain,(
% 0.17/0.59 strictorderedP(sK47_skl)),
% 0.17/0.59 inference(forward_demodulation,[status(thm)],[f423,f426])).
% 0.17/0.59 fof(f463,definition,(
% 0.17/0.59 sQ4_spl <=> (ssList(nil))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ4_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f465,plain,(
% 0.17/0.59 ~ssList(nil)|sQ4_spl),
% 0.17/0.59 inference(component_clause,[status(thm)],[f463])).
% 0.17/0.59 fof(f466,definition,(
% 0.17/0.59 sQ5_spl <=> (ssList(sK47_skl))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ5_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f468,plain,(
% 0.17/0.59 ~ssList(sK47_skl)|sQ5_spl),
% 0.17/0.59 inference(component_clause,[status(thm)],[f466])).
% 0.17/0.59 fof(f473,plain,(
% 0.17/0.59 $false|sQ3_spl),
% 0.17/0.59 inference(forward_subsumption_resolution,[status(thm)],[f442,f458])).
% 0.17/0.59 fof(f474,plain,(
% 0.17/0.59 sQ3_spl),
% 0.17/0.59 inference(contradiction_clause,[status(thm)],[f473])).
% 0.17/0.59 fof(f480,plain,(
% 0.17/0.59 ![X0,X1]: (~ssList(sK48_skl)|~ssList(sK47_skl)|~ssList(X0)|~ssList(X1)|~app(app(X0,sK47_skl),X1)=sK48_skl|sQ2_spl)),
% 0.17/0.59 inference(resolution,[status(thm)],[f439,f137])).
% 0.17/0.59 fof(f481,definition,(
% 0.17/0.59 sQ7_spl <=> (ssList(sK48_skl))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ7_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f483,plain,(
% 0.17/0.59 ~ssList(sK48_skl)|sQ7_spl),
% 0.17/0.59 inference(component_clause,[status(thm)],[f481])).
% 0.17/0.59 fof(f484,definition,(
% 0.17/0.59 ![X0,X1]: (sQ8_spl <=> (~ssList(X0)|~ssList(X1)|~app(app(X0,sK47_skl),X1)=sK48_skl))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ8_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f485,plain,(
% 0.17/0.59 ![X0,X1]: (~ssList(X0)|~ssList(X1)|~app(app(X0,sK47_skl),X1)=sK48_skl|~sQ8_spl)),
% 0.17/0.59 inference(component_clause,[status(thm)],[f484])).
% 0.17/0.59 fof(f487,plain,(
% 0.17/0.59 ~sQ7_spl|~sQ5_spl|sQ8_spl|sQ2_spl),
% 0.17/0.59 inference(split_clause,[status(thm)],[f480,f481,f466,f484,f437])).
% 0.17/0.59 fof(f488,plain,(
% 0.17/0.59 $false|sQ5_spl),
% 0.17/0.59 inference(forward_subsumption_resolution,[status(thm)],[f468,f418])).
% 0.17/0.59 fof(f489,plain,(
% 0.17/0.59 sQ5_spl),
% 0.17/0.59 inference(contradiction_clause,[status(thm)],[f488])).
% 0.17/0.59 fof(f490,plain,(
% 0.17/0.59 $false|sQ7_spl),
% 0.17/0.59 inference(forward_subsumption_resolution,[status(thm)],[f483,f419])).
% 0.17/0.59 fof(f491,plain,(
% 0.17/0.59 sQ7_spl),
% 0.17/0.59 inference(contradiction_clause,[status(thm)],[f490])).
% 0.17/0.59 fof(f492,plain,(
% 0.17/0.59 app(sK47_skl,sK51_skl)=sK50_skl),
% 0.17/0.59 inference(forward_demodulation,[status(thm)],[f423,f425])).
% 0.17/0.59 fof(f493,plain,(
% 0.17/0.59 app(sK47_skl,sK51_skl)=sK48_skl),
% 0.17/0.59 inference(forward_demodulation,[status(thm)],[f422,f492])).
% 0.17/0.59 fof(f502,plain,(
% 0.17/0.59 app(nil,sK47_skl)=sK47_skl),
% 0.17/0.59 inference(resolution,[status(thm)],[f249,f418])).
% 0.17/0.59 fof(f504,plain,(
% 0.17/0.59 ![X0]: (~ssList(nil)|~ssList(X0)|~app(sK47_skl,X0)=sK48_skl|~sQ8_spl)),
% 0.17/0.59 inference(paramodulation,[status(thm)],[f502,f485])).
% 0.17/0.59 fof(f509,definition,(
% 0.17/0.59 ![X0]: (sQ10_spl <=> (~ssList(X0)|~app(sK47_skl,X0)=sK48_skl))),
% 0.17/0.59 introduced(definition,[new_symbols(definition,[sQ10_spl])],[split_symbol_definition])).
% 0.17/0.59 fof(f510,plain,(
% 0.17/0.59 ![X0]: (~ssList(X0)|~app(sK47_skl,X0)=sK48_skl|~sQ10_spl)),
% 0.17/0.59 inference(component_clause,[status(thm)],[f509])).
% 0.17/0.59 fof(f512,plain,(
% 0.17/0.59 ~sQ4_spl|sQ10_spl|~sQ8_spl),
% 0.17/0.59 inference(split_clause,[status(thm)],[f504,f463,f509,f484])).
% 0.17/0.59 fof(f513,plain,(
% 0.17/0.59 $false|sQ4_spl),
% 0.17/0.59 inference(forward_subsumption_resolution,[status(thm)],[f465,f223])).
% 0.17/0.59 fof(f514,plain,(
% 0.17/0.59 sQ4_spl),
% 0.17/0.59 inference(contradiction_clause,[status(thm)],[f513])).
% 0.17/0.59 fof(f524,plain,(
% 0.17/0.59 ~app(sK47_skl,sK51_skl)=sK48_skl|~sQ10_spl),
% 0.17/0.59 inference(resolution,[status(thm)],[f510,f424])).
% 0.17/0.59 fof(f527,plain,(
% 0.17/0.59 ~sK48_skl=sK48_skl|~sQ10_spl),
% 0.17/0.59 inference(forward_demodulation,[status(thm)],[f493,f524])).
% 0.17/0.59 fof(f528,plain,(
% 0.17/0.59 $false|~sQ10_spl),
% 0.17/0.59 inference(trivial_equality_resolution,[status(thm)],[f527])).
% 0.17/0.59 fof(f529,plain,(
% 0.17/0.59 ~sQ10_spl),
% 0.17/0.59 inference(contradiction_clause,[status(thm)],[f528])).
% 0.17/0.59 fof(f530,plain,(
% 0.17/0.59 $false),
% 0.17/0.59 inference(sat_refutation,[status(thm)],[f443,f474,f487,f489,f491,f512,f514,f529])).
% 0.17/0.59 % SZS output end CNFRefutation for theBenchmark.p
% 0.76/0.63 % Elapsed time: 0.169521 seconds
% 0.76/0.63 % CPU time: 0.717842 seconds
% 0.76/0.63 % Total memory used: 89.381 MB
% 0.76/0.63 % Net memory used: 88.806 MB
%------------------------------------------------------------------------------