%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWC023+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n011.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 : Fri Sep 25 03:07:33 PM UTC 2026
% Result : Theorem 2.02s 1.28s
% Output : CNFRefutation 2.02s
% Verified :
% SZS Type : ERROR: Analysing output (Could not find formula named f545ERROR: Could not build tree for root c_3352ERROR: MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
fof(f17,axiom,
ssList(nil),
file('/export/starexec/sandbox/benchmark/Axioms/SWC001+0.ax',ax17) ).
fof(f96,conjecture,
! [X0] :
( ssList(X0)
=> ! [X1] :
( ssList(X1)
=> ! [X2] :
( ssList(X2)
=> ! [X3] :
( ssList(X3)
=> ( ( ( nil != X2
| nil != X3 )
& ! [X5] :
( ssList(X5)
=> ( ~ frontsegP(X2,X5)
| ~ frontsegP(X3,X5)
| ~ neq(X5,nil) ) ) )
| ? [X4] :
( frontsegP(X0,X4)
& frontsegP(X1,X4)
& neq(X4,nil)
& ssList(X4) )
| ~ neq(X1,nil)
| X0 != X2
| X1 != X3 ) ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1) ).
fof(f97,negated_conjecture,
~ ! [X0] :
( ssList(X0)
=> ! [X1] :
( ssList(X1)
=> ! [X2] :
( ssList(X2)
=> ! [X3] :
( ssList(X3)
=> ( ( ( nil != X2
| nil != X3 )
& ! [X5] :
( ssList(X5)
=> ( ~ frontsegP(X2,X5)
| ~ frontsegP(X3,X5)
| ~ neq(X5,nil) ) ) )
| ? [X4] :
( frontsegP(X0,X4)
& frontsegP(X1,X4)
& neq(X4,nil)
& ssList(X4) )
| ~ neq(X1,nil)
| X0 != X2
| X1 != X3 ) ) ) ) ),
inference(negated_conjecture,[status(cth)],[f96]) ).
fof(f221,plain,
? [X0] :
( ssList(X0)
& ? [X1] :
( ssList(X1)
& ? [X2] :
( ssList(X2)
& ? [X3] :
( ssList(X3)
& ( ( nil = X2
& nil = X3 )
| ? [X5] :
( ssList(X5)
& frontsegP(X2,X5)
& frontsegP(X3,X5)
& neq(X5,nil) ) )
& ! [X4] :
( ~ frontsegP(X0,X4)
| ~ frontsegP(X1,X4)
| ~ neq(X4,nil)
| ~ ssList(X4) )
& neq(X1,nil)
& X0 = X2
& X1 = X3 ) ) ) ),
inference(ennf_transformation,[],[f97]) ).
fof(f222,plain,
? [X0] :
( ssList(X0)
& ? [X1] :
( ssList(X1)
& ? [X2] :
( ssList(X2)
& ? [X3] :
( ssList(X3)
& ( ( nil = X2
& nil = X3 )
| ? [X5] :
( ssList(X5)
& frontsegP(X2,X5)
& frontsegP(X3,X5)
& neq(X5,nil) ) )
& ! [X4] :
( ~ frontsegP(X0,X4)
| ~ frontsegP(X1,X4)
| ~ neq(X4,nil)
| ~ ssList(X4) )
& neq(X1,nil)
& X0 = X2
& X1 = X3 ) ) ) ),
inference(flattening,[],[f221]) ).
fof(f296,plain,
( ssList(sK53)
& ssList(sK54)
& ssList(sK55)
& ssList(sK56)
& ( ( nil = sK55
& nil = sK56 )
| ( ssList(sK57)
& frontsegP(sK55,sK57)
& frontsegP(sK56,sK57)
& neq(sK57,nil) ) )
& ! [X4] :
( ~ frontsegP(sK53,X4)
| ~ frontsegP(sK54,X4)
| ~ neq(X4,nil)
| ~ ssList(X4) )
& neq(sK54,nil)
& sK53 = sK55
& sK54 = sK56 ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK53,sK54,sK55,sK56,sK57]),skolemize(X0,sK53),skolemize(X1,sK54),skolemize(X2,sK55),skolemize(X3,sK56),skolemize(X5,sK57)],[f222]) ).
fof(f389,plain,
ssList(nil),
inference(cnf_transformation,[],[f17]) ).
fof(f501,plain,
( nil = sK56
| ssList(sK57) ),
inference(cnf_transformation,[],[f296]) ).
fof(f503,plain,
( nil = sK56
| frontsegP(sK55,sK57) ),
inference(cnf_transformation,[],[f296]) ).
fof(f505,plain,
( nil = sK56
| frontsegP(sK56,sK57) ),
inference(cnf_transformation,[],[f296]) ).
fof(f507,plain,
( nil = sK56
| neq(sK57,nil) ),
inference(cnf_transformation,[],[f296]) ).
fof(f508,plain,
! [X4] :
( ~ frontsegP(sK53,X4)
| ~ frontsegP(sK54,X4)
| ~ neq(X4,nil)
| ~ ssList(X4) ),
inference(cnf_transformation,[],[f296]) ).
fof(f509,plain,
neq(sK54,nil),
inference(cnf_transformation,[],[f296]) ).
fof(f510,plain,
sK53 = sK55,
inference(cnf_transformation,[],[f296]) ).
fof(f511,plain,
sK54 = sK56,
inference(cnf_transformation,[],[f296]) ).
fof(f512,plain,
neq(sK56,nil),
inference(definition_unfolding,[],[f509,f511]) ).
fof(f513,plain,
! [X4] :
( ~ frontsegP(sK55,X4)
| ~ frontsegP(sK56,X4)
| ~ neq(X4,nil)
| ~ ssList(X4) ),
inference(definition_unfolding,[],[f508,f511,f510]) ).
tcf(c_139,plain,
! [X0: $i] :
( ~ ssList(X0)
| ~ neq(X0,X0) ),
inference(cnf_transformation,[],[f545]) ).
tcf(c_141,plain,
ssList(nil),
inference(cnf_transformation,[],[f389]) ).
tcf(c_246,negated_conjecture,
neq(sK56,nil),
inference(cnf_transformation,[],[f512]) ).
tcf(c_247,negated_conjecture,
! [X0: $i] :
( ~ ssList(X0)
| ~ frontsegP(sK55,X0)
| ~ frontsegP(sK56,X0)
| ~ neq(X0,nil) ),
inference(cnf_transformation,[],[f513]) ).
tcf(c_248,negated_conjecture,
( neq(sK57,nil)
| ( nil = sK56 ) ),
inference(cnf_transformation,[],[f507]) ).
tcf(c_250,negated_conjecture,
( frontsegP(sK56,sK57)
| ( nil = sK56 ) ),
inference(cnf_transformation,[],[f505]) ).
tcf(c_252,negated_conjecture,
( frontsegP(sK55,sK57)
| ( nil = sK56 ) ),
inference(cnf_transformation,[],[f503]) ).
tcf(c_254,negated_conjecture,
( ssList(sK57)
| ( nil = sK56 ) ),
inference(cnf_transformation,[],[f501]) ).
tcf(c_3303,plain,
! [X0: $i] :
( ~ ssList(X0)
| ( X0 != sK56 )
| ( X0 != nil ) ),
inference(resolution_lifted,[status(thm)],[c_139,c_246]) ).
tcf(c_3304,plain,
( ~ ssList(nil)
| ( nil != sK56 ) ),
inference(unflattening,[status(thm)],[c_3303]) ).
tcf(c_3350,plain,
! [X0: $i] :
( ( nil = sK56 )
| ~ ssList(X0)
| ~ frontsegP(sK55,X0)
| ~ frontsegP(sK56,X0)
| ( nil != nil )
| ( X0 != sK57 ) ),
inference(resolution_lifted,[status(thm)],[c_247,c_248]) ).
tcf(c_3351,plain,
( ( nil = sK56 )
| ~ ssList(sK57)
| ~ frontsegP(sK55,sK57)
| ~ frontsegP(sK56,sK57) ),
inference(unflattening,[status(thm)],[c_3350]) ).
tcf(c_3352,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_3351,c_3304,c_250,c_252,c_254,c_141]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC023+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.10/0.37 % Computer : n011.cluster.edu
% 0.10/0.37 % Model : x86_64 x86_64
% 0.10/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37 % Memory : 8046.5625MB
% 0.10/0.37 % OS : Linux 6.8.0-71-generic
% 0.10/0.37 % CPULimit : 300
% 0.10/0.37 % WCLimit : 300
% 0.10/0.37 % DateTime : Thu Sep 24 15:58:12 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.10/0.40 Running first-order theorem proving
% 0.10/0.40 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.41
% 0.10/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.10/0.41
% 0.10/0.41 % Detected problem language: tptp
% 0.10/0.43 % Proving...
% 2.02/1.28 % SZS status Started for theBenchmark.p
% 2.02/1.28 % SZS status Theorem for theBenchmark.p
% 2.02/1.28
% 2.02/1.28 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 2.02/1.28
% 2.02/1.28 % ------ iProver source info
% 2.02/1.28
% 2.02/1.28 % git: date: 2026-07-19 20:42:38 +0200
% 2.02/1.28 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 2.02/1.28 % git: non_committed_changes: false
% 2.02/1.28
% 2.02/1.28 % ------ Parsing...
% 2.02/1.28 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 2.02/1.28
% 2.02/1.28 % ------ Preprocessing... sup_sim: 0 sf_s rm: 1 0s sf_e pe_s pe:1:0s pe:2:0s pe:4:0s%
% 2.02/1.28
% 2.02/1.28 % SZS status Theorem for theBenchmark.p
% 2.02/1.28
% 2.02/1.28 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.02/1.28
% 2.02/1.28
%------------------------------------------------------------------------------