%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWC028-1 : 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 : n016.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 03:07:35 PM UTC 2026
% Result : Unsatisfiable 2.81s 1.39s
% Output : CNFRefutation 2.81s
% Verified :
% SZS Type : ERROR: Analysing output (Could not find formula named f226ERROR: Could not build tree for root c_1497ERROR: MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
fof(f82,axiom,
! [X0] :
( nil = X0
| ~ ssList(X0)
| ~ rearsegP(nil,X0) ),
file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause82) ).
fof(f202,negated_conjecture,
ssList(sk3),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_3) ).
fof(f204,negated_conjecture,
sk2 = sk4,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_5) ).
fof(f205,negated_conjecture,
sk1 = sk3,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_6) ).
fof(f206,negated_conjecture,
( nil = sk1
| nil = sk2 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_7) ).
fof(f209,negated_conjecture,
( nil != sk2
| nil != sk1 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_10) ).
fof(f210,negated_conjecture,
( neq(sk3,nil)
| nil = sk4 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_11) ).
fof(f211,negated_conjecture,
( rearsegP(sk4,sk3)
| nil = sk4 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_12) ).
fof(f212,negated_conjecture,
( neq(sk3,nil)
| nil = sk3 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_13) ).
fof(f213,negated_conjecture,
( rearsegP(sk4,sk3)
| nil = sk3 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_14) ).
fof(f216,plain,
( nil = sk3
| nil = sk4 ),
inference(definition_unfolding,[],[f206,f204,f205]) ).
fof(f219,plain,
( nil != sk4
| nil != sk3 ),
inference(definition_unfolding,[],[f209,f205,f204]) ).
tcf(c_250,negated_conjecture,
ssList(sk3),
inference(cnf_transformation,[],[f202]) ).
tcf(c_252,negated_conjecture,
( ( sk4 = nil )
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f216]) ).
tcf(c_253,negated_conjecture,
( ( sk4 != nil )
| ( sk3 != nil ) ),
inference(cnf_transformation,[],[f219]) ).
tcf(c_254,negated_conjecture,
( neq(sk3,nil)
| ( sk4 = nil ) ),
inference(cnf_transformation,[],[f210]) ).
tcf(c_255,negated_conjecture,
( rearsegP(sk4,sk3)
| ( sk4 = nil ) ),
inference(cnf_transformation,[],[f211]) ).
tcf(c_256,negated_conjecture,
( neq(sk3,nil)
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f212]) ).
tcf(c_257,negated_conjecture,
( rearsegP(sk4,sk3)
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f213]) ).
tcf(c_264,plain,
! [X0: $i] :
( ~ ssList(X0)
| ~ neq(X0,X0) ),
inference(cnf_transformation,[],[f226]) ).
tcf(c_270,plain,
! [X0: $i] :
( ( X0 = nil )
| ~ ssList(X0)
| ~ rearsegP(nil,X0) ),
inference(cnf_transformation,[],[f82]) ).
tcf(c_291,negated_conjecture,
rearsegP(sk4,sk3),
inference(global_subsumption_just,[status(thm)],[c_257,c_257,c_255,c_253]) ).
tcf(c_293,negated_conjecture,
neq(sk3,nil),
inference(global_subsumption_just,[status(thm)],[c_256,c_256,c_254,c_253]) ).
tcf(c_295,negated_conjecture,
rearsegP(sk4,sk3),
inference(global_subsumption_just,[status(thm)],[c_255,c_291]) ).
tcf(c_297,negated_conjecture,
neq(sk3,nil),
inference(global_subsumption_just,[status(thm)],[c_254,c_293]) ).
tcf(c_303,plain,
( ( sk4 = nil )
| ( sk3 = nil ) ),
inference(prop_impl_just,[status(thm)],[c_252]) ).
tcf(c_313,plain,
! [X0: $i] :
( ~ neq(X0,X0)
| ~ ssList(X0) ),
inference(prop_impl_just,[status(thm)],[c_264]) ).
tcf(c_314,plain,
! [X0: $i] :
( ~ ssList(X0)
| ~ neq(X0,X0) ),
inference(renaming,[status(thm)],[c_313]) ).
tcf(c_646,plain,
! [X0: $i] :
( ~ ssList(X0)
| ( X0 != nil )
| ( X0 != sk3 ) ),
inference(resolution_lifted,[status(thm)],[c_297,c_314]) ).
tcf(c_647,plain,
( ~ ssList(sk3)
| ( sk3 != nil ) ),
inference(unflattening,[status(thm)],[c_646]) ).
tcf(c_648,plain,
sk3 != nil,
inference(global_subsumption_just,[status(thm)],[c_647,c_250,c_647]) ).
tcf(c_656,plain,
sk4 = nil,
inference(backward_subsumption_resolution,[status(thm)],[c_303,c_648]) ).
tcf(c_783,plain,
rearsegP(nil,sk3),
inference(demodulation,[status(thm)],[c_295,c_656]) ).
tcf(c_1496,plain,
( ( sk3 = nil )
| ~ ssList(sk3) ),
inference(superposition,[status(thm)],[c_783,c_270]) ).
tcf(c_1497,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_1496,c_648,c_250]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : SWC028-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.06 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.14/0.40 % Computer : n016.cluster.edu
% 0.14/0.40 % Model : x86_64 x86_64
% 0.14/0.40 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.40 % Memory : 8046.5625MB
% 0.14/0.40 % OS : Linux 6.8.0-71-generic
% 0.14/0.40 % CPULimit : 300
% 0.14/0.40 % WCLimit : 300
% 0.14/0.40 % DateTime : Thu Sep 24 16:04:58 UTC 2026
% 0.05/0.41 % CPUTime :
% 0.05/0.41 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.05/0.46 Running first-order theorem proving
% 0.05/0.46 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
% 0.05/0.49
% 0.05/0.49 % ======== iProver multi-core TPTP/SMT =========
% 0.05/0.49
% 0.05/0.49 % Detected problem language: tptp
% 0.21/0.51 % Proving...
% 2.81/1.39 % SZS status Started for theBenchmark.p
% 2.81/1.39 % SZS status Unsatisfiable for theBenchmark.p
% 2.81/1.39
% 2.81/1.39 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 2.81/1.39
% 2.81/1.39 % ------ iProver source info
% 2.81/1.39
% 2.81/1.39 % git: date: 2026-07-19 20:42:38 +0200
% 2.81/1.39 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 2.81/1.39 % git: non_committed_changes: false
% 2.81/1.39
% 2.81/1.39 % ------ Parsing...% successful
% 2.81/1.39
% 2.81/1.39
% 2.81/1.39 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 2.81/1.39
% 2.81/1.39 % ------ Preprocessing... sup_sim: 0 sf_s rm: 1 0s sf_e pe_s pe:1:0s pe_e sup_sim: 3 sf_s rm: 2 0s sf_e pe_s pe_e sup_sim: 0 sf_s rm: 2 0s sf_e pe_s pe_e %
% 2.81/1.39
% 2.81/1.39 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 2.81/1.39
% 2.81/1.39 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 2.81/1.39 % ------ Proving...
% 2.81/1.39 % ------ Problem Properties
% 2.81/1.39
% 2.81/1.39 %
% 2.81/1.39 % clauses 22
% 2.81/1.39 % conjectures 1
% 2.81/1.39 % EPR 11
% 2.81/1.39 % Horn 22
% 2.81/1.39 % unary 7
% 2.81/1.39 % binary 4
% 2.81/1.39 % lits 62
% 2.81/1.39 % lits eq 16
% 2.81/1.39 % fd_pure 0
% 2.81/1.39 % fd_pseudo 0
% 2.81/1.39 % fd_cond 3
% 2.81/1.39 % fd_pseudo_cond 3
% 2.81/1.39 % AC symbols 0
% 2.81/1.39
% 2.81/1.39 % ------ Schedule dynamic 5 is on
% 2.81/1.39
% 2.81/1.39 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 2.81/1.39
% 2.81/1.39
% 2.81/1.39 % ------
% 2.81/1.39 % Current options:
% 2.81/1.39 % ------
% 2.81/1.39
% 2.81/1.39
% 2.81/1.39 %
% 2.81/1.39
% 2.81/1.39 % ------ Proving...
% 2.81/1.39 %
% 2.81/1.39
% 2.81/1.39 % SZS status Unsatisfiable for theBenchmark.p
% 2.81/1.39
% 2.81/1.39 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.81/1.39
% 2.81/1.39
%------------------------------------------------------------------------------