%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SWC277+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n007.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 02:42:02 PM UTC 2026
% Result : Theorem 0.07s 0.38s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SWC277+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.03 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.07/0.34 % Computer : n007.cluster.edu
% 0.07/0.34 % Model : x86_64 x86_64
% 0.07/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.34 % Memory : 8046.5625MB
% 0.07/0.34 % OS : Linux 6.8.0-71-generic
% 0.07/0.34 % CPULimit : 300
% 0.07/0.34 % WCLimit : 300
% 0.07/0.34 % DateTime : Mon Sep 21 08:09:06 UTC 2026
% 0.07/0.34 % CPUTime :
% 0.07/0.36 % Drodi V4.1.1
% 0.07/0.38 % Refutation found
% 0.07/0.38 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.07/0.38 % SZS output start CNFRefutation for theBenchmark
% 0.07/0.38 fof(f4,axiom,(
% 0.07/0.38 (! [U] :( ssList(U)=> ( singletonP(U)<=> (? [V] :( ssItem(V)& cons(V,nil) = U ) )) ) )),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f15,axiom,(
% 0.07/0.38 (! [U] :( ssList(U)=> (! [V] :( ssList(V)=> ( neq(U,V)<=> U != V ) ) )) )),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f17,axiom,(
% 0.07/0.38 ssList(nil) ),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f58,axiom,(
% 0.07/0.38 (! [U] :( ssList(U)=> ( segmentP(nil,U)<=> nil = U ) ) )),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f65,axiom,(
% 0.07/0.38 (! [U] :( ssItem(U)=> totalorderedP(cons(U,nil)) ) )),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f66,axiom,(
% 0.07/0.38 totalorderedP(nil) ),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f96,conjecture,(
% 0.07/0.38 (! [U] :( ssList(U)=> (! [V] :( ssList(V)=> (! [W] :( ssList(W)=> (! [X] :( ssList(X)=> ( V != X| U != W| ~ segmentP(X,W)| totalorderedP(U)| ( ~ singletonP(W)& neq(X,nil) ) ) ) )) )) )) )),
% 0.07/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.07/0.38 fof(f97,negated_conjecture,(
% 0.07/0.38 ~((! [U] :( ssList(U)=> (! [V] :( ssList(V)=> (! [W] :( ssList(W)=> (! [X] :( ssList(X)=> ( V != X| U != W| ~ segmentP(X,W)| totalorderedP(U)| ( ~ singletonP(W)& neq(X,nil) ) ) ) )) )) )) ))),
% 0.07/0.38 inference(negated_conjecture,[status(cth)],[f96])).
% 0.07/0.38 fof(f113,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|(singletonP(U)<=>(?[V]: (ssItem(V)&cons(V,nil)=U))))),
% 0.07/0.38 inference(pre_NNF_transformation,[status(thm)],[f4])).
% 0.07/0.38 fof(f114,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|((~singletonP(U)|(?[V]: (ssItem(V)&cons(V,nil)=U)))&(singletonP(U)|(![V]: (~ssItem(V)|~cons(V,nil)=U)))))),
% 0.07/0.38 inference(NNF_transformation,[status(thm)],[f113])).
% 0.07/0.38 fof(f115,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|((~singletonP(U)|(ssItem(sK4_skl(U))&cons(sK4_skl(U),nil)=U))&(singletonP(U)|(![V]: (~ssItem(V)|~cons(V,nil)=U)))))),
% 0.07/0.38 inference(skolemize,[status(esa),new_symbols(skolem,[sK4_skl]),skolemize(V,sK4_skl(U))],[f114])).
% 0.07/0.38 fof(f116,plain,(
% 0.07/0.38 ![X0]: (~ssList(X0)|~singletonP(X0)|ssItem(sK4_skl(X0)))),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f115])).
% 0.07/0.38 fof(f117,plain,(
% 0.07/0.38 ![X0]: (~ssList(X0)|~singletonP(X0)|cons(sK4_skl(X0),nil)=X0)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f115])).
% 0.07/0.38 fof(f217,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|(![V]: (~ssList(V)|(neq(U,V)<=>~U=V))))),
% 0.07/0.38 inference(pre_NNF_transformation,[status(thm)],[f15])).
% 0.07/0.38 fof(f218,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|(![V]: (~ssList(V)|((~neq(U,V)|~U=V)&(neq(U,V)|U=V)))))),
% 0.07/0.38 inference(NNF_transformation,[status(thm)],[f217])).
% 0.07/0.38 fof(f220,plain,(
% 0.07/0.38 ![X0,X1]: (~ssList(X0)|~ssList(X1)|neq(X0,X1)|X0=X1)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f218])).
% 0.07/0.38 fof(f223,plain,(
% 0.07/0.38 ssList(nil)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f17])).
% 0.07/0.38 fof(f324,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|(segmentP(nil,U)<=>nil=U))),
% 0.07/0.38 inference(pre_NNF_transformation,[status(thm)],[f58])).
% 0.07/0.38 fof(f325,plain,(
% 0.07/0.38 ![U]: (~ssList(U)|((~segmentP(nil,U)|nil=U)&(segmentP(nil,U)|~nil=U)))),
% 0.07/0.38 inference(NNF_transformation,[status(thm)],[f324])).
% 0.07/0.38 fof(f326,plain,(
% 0.07/0.38 ![X0]: (~ssList(X0)|~segmentP(nil,X0)|nil=X0)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f325])).
% 0.07/0.38 fof(f337,plain,(
% 0.07/0.38 ![U]: (~ssItem(U)|totalorderedP(cons(U,nil)))),
% 0.07/0.38 inference(pre_NNF_transformation,[status(thm)],[f65])).
% 0.07/0.38 fof(f338,plain,(
% 0.07/0.38 ![X0]: (~ssItem(X0)|totalorderedP(cons(X0,nil)))),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f337])).
% 0.07/0.38 fof(f339,plain,(
% 0.07/0.38 totalorderedP(nil)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f66])).
% 0.07/0.38 fof(f415,plain,(
% 0.07/0.38 (?[U]: (ssList(U)&(?[V]: (ssList(V)&(?[W]: (ssList(W)&(?[X]: (ssList(X)&((((V=X&U=W)&segmentP(X,W))&~totalorderedP(U))&(singletonP(W)|~neq(X,nil)))))))))))),
% 0.07/0.38 inference(pre_NNF_transformation,[status(thm)],[f97])).
% 0.07/0.38 fof(f416,plain,(
% 0.07/0.38 (ssList(sK47_skl)&(ssList(sK48_skl)&(ssList(sK49_skl)&(ssList(sK50_skl)&((((sK48_skl=sK50_skl&sK47_skl=sK49_skl)&segmentP(sK50_skl,sK49_skl))&~totalorderedP(sK47_skl))&(singletonP(sK49_skl)|~neq(sK50_skl,nil)))))))),
% 0.07/0.38 inference(skolemize,[status(esa),new_symbols(skolem,[sK47_skl,sK48_skl,sK49_skl,sK50_skl]),skolemize(U,sK47_skl),skolemize(V,sK48_skl),skolemize(W,sK49_skl),skolemize(X,sK50_skl)],[f415])).
% 0.07/0.38 fof(f417,plain,(
% 0.07/0.38 ssList(sK47_skl)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f418,plain,(
% 0.07/0.38 ssList(sK48_skl)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f421,plain,(
% 0.07/0.38 sK48_skl=sK50_skl),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f422,plain,(
% 0.07/0.38 sK47_skl=sK49_skl),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f423,plain,(
% 0.07/0.38 segmentP(sK50_skl,sK49_skl)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f424,plain,(
% 0.07/0.38 ~totalorderedP(sK47_skl)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f425,plain,(
% 0.07/0.38 singletonP(sK49_skl)|~neq(sK50_skl,nil)),
% 0.07/0.38 inference(cnf_transformation,[status(thm)],[f416])).
% 0.07/0.38 fof(f469,plain,(
% 0.07/0.38 segmentP(sK48_skl,sK49_skl)),
% 0.07/0.38 inference(forward_demodulation,[status(thm)],[f421,f423])).
% 0.07/0.38 fof(f470,plain,(
% 0.07/0.38 segmentP(sK48_skl,sK47_skl)),
% 0.07/0.38 inference(forward_demodulation,[status(thm)],[f422,f469])).
% 0.07/0.38 fof(f471,plain,(
% 0.07/0.38 singletonP(sK47_skl)|~neq(sK50_skl,nil)),
% 0.07/0.38 inference(forward_demodulation,[status(thm)],[f422,f425])).
% 0.07/0.38 fof(f472,plain,(
% 0.07/0.38 singletonP(sK47_skl)|~neq(sK48_skl,nil)),
% 0.07/0.38 inference(forward_demodulation,[status(thm)],[f421,f471])).
% 0.07/0.38 fof(f473,plain,(
% 0.07/0.38 singletonP(sK47_skl)|~ssList(sK48_skl)|~ssList(nil)|sK48_skl=nil),
% 0.07/0.38 inference(resolution,[status(thm)],[f472,f220])).
% 0.07/0.38 fof(f474,plain,(
% 0.07/0.38 singletonP(sK47_skl)|~ssList(nil)|sK48_skl=nil),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f473,f418])).
% 0.07/0.38 fof(f475,plain,(
% 0.07/0.38 singletonP(sK47_skl)|sK48_skl=nil),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f474,f223])).
% 0.07/0.38 fof(f476,plain,(
% 0.07/0.38 sK48_skl=nil|~ssList(sK47_skl)|cons(sK4_skl(sK47_skl),nil)=sK47_skl),
% 0.07/0.38 inference(resolution,[status(thm)],[f475,f117])).
% 0.07/0.38 fof(f477,plain,(
% 0.07/0.38 sK48_skl=nil|~ssList(sK47_skl)|ssItem(sK4_skl(sK47_skl))),
% 0.07/0.38 inference(resolution,[status(thm)],[f475,f116])).
% 0.07/0.38 fof(f478,plain,(
% 0.07/0.38 sK48_skl=nil|cons(sK4_skl(sK47_skl),nil)=sK47_skl),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f476,f417])).
% 0.07/0.38 fof(f479,plain,(
% 0.07/0.38 sK48_skl=nil|ssItem(sK4_skl(sK47_skl))),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f477,f417])).
% 0.07/0.38 fof(f541,plain,(
% 0.07/0.38 ~ssItem(sK4_skl(sK47_skl))|totalorderedP(sK47_skl)|sK48_skl=nil),
% 0.07/0.38 inference(paramodulation,[status(thm)],[f478,f338])).
% 0.07/0.38 fof(f549,plain,(
% 0.07/0.38 totalorderedP(sK47_skl)|sK48_skl=nil),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f541,f479])).
% 0.07/0.38 fof(f567,plain,(
% 0.07/0.38 ![X0]: (~ssList(X0)|~segmentP(nil,X0)|sK48_skl=X0)),
% 0.07/0.38 inference(backward_demodulation,[status(thm)],[f584,f326])).
% 0.07/0.38 fof(f579,plain,(
% 0.07/0.38 totalorderedP(sK48_skl)),
% 0.07/0.38 inference(backward_demodulation,[status(thm)],[f584,f339])).
% 0.07/0.38 fof(f584,plain,(
% 0.07/0.38 sK48_skl=nil),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f549,f424])).
% 0.07/0.38 fof(f585,plain,(
% 0.07/0.38 ![X0]: (~ssList(X0)|~segmentP(sK48_skl,X0)|sK48_skl=X0)),
% 0.07/0.38 inference(forward_demodulation,[status(thm)],[f584,f567])).
% 0.07/0.38 fof(f588,plain,(
% 0.07/0.38 ~ssList(sK47_skl)|sK48_skl=sK47_skl),
% 0.07/0.38 inference(resolution,[status(thm)],[f585,f470])).
% 0.07/0.38 fof(f591,plain,(
% 0.07/0.38 sK48_skl=sK47_skl),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f588,f417])).
% 0.07/0.38 fof(f620,plain,(
% 0.07/0.38 totalorderedP(sK47_skl)),
% 0.07/0.38 inference(backward_demodulation,[status(thm)],[f591,f579])).
% 0.07/0.38 fof(f640,plain,(
% 0.07/0.38 $false),
% 0.07/0.38 inference(forward_subsumption_resolution,[status(thm)],[f620,f424])).
% 0.07/0.38 % SZS output end CNFRefutation for theBenchmark.p
% 0.13/0.40 % Elapsed time: 0.053646 seconds
% 0.13/0.40 % CPU time: 0.155433 seconds
% 0.13/0.40 % Total memory used: 69.559 MB
% 0.13/0.40 % Net memory used: 69.414 MB
%------------------------------------------------------------------------------