%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWC217-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/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 03:08:54 PM UTC 2026
% Result : Unsatisfiable 1.61s 1.29s
% Output : CNFRefutation 1.61s
% Verified :
% SZS Type : ERROR: Analysing output (Could not find formula named f244ERROR: Could not build tree for root c_12874ERROR: MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
fof(f8,axiom,
ssList(nil),
file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause8) ).
fof(f71,axiom,
! [X0] :
( ~ ssItem(X0)
| ~ memberP(nil,X0) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause71) ).
fof(f101,axiom,
! [X0,X1] :
( X1 = X0
| neq(X1,X0)
| ~ ssList(X1)
| ~ ssList(X0) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SWC001-0.ax',clause100) ).
fof(f102,plain,
! [X0,X1] :
( X0 = X1
| neq(X1,X0)
| ~ ssList(X1)
| ~ ssList(X0) ),
inference(reorient_equations,[],[f101]) ).
fof(f202,negated_conjecture,
ssList(sk3),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_3) ).
fof(f204,negated_conjecture,
sk2 = sk4,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_5) ).
fof(f205,negated_conjecture,
sk1 = sk3,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_6) ).
fof(f206,negated_conjecture,
neq(sk2,nil),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_7) ).
fof(f207,negated_conjecture,
~ neq(sk1,nil),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_8) ).
fof(f209,negated_conjecture,
( ~ neq(sk4,nil)
| ssItem(sk5) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_10) ).
fof(f210,negated_conjecture,
( ~ neq(sk4,nil)
| cons(sk5,nil) = sk3 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_11) ).
fof(f211,plain,
( ~ neq(sk4,nil)
| sk3 = cons(sk5,nil) ),
inference(reorient_equations,[],[f210]) ).
fof(f215,plain,
neq(sk4,nil),
inference(definition_unfolding,[],[f206,f204]) ).
fof(f216,plain,
~ neq(sk3,nil),
inference(definition_unfolding,[],[f207,f205]) ).
tcf(c_253,plain,
ssList(nil),
inference(cnf_transformation,[],[f8]) ).
tcf(c_316,plain,
! [X0: $i] :
( ~ ssItem(X0)
| ~ memberP(nil,X0) ),
inference(cnf_transformation,[],[f71]) ).
tcf(c_345,plain,
! [X0: $i,X1: $i] :
( neq(X1,X0)
| ( X0 = X1 )
| ~ ssList(X1)
| ~ ssList(X0) ),
inference(cnf_transformation,[],[f102]) ).
tcf(c_383,plain,
! [X0: $i,X1: $i] :
( memberP(cons(X1,X0),X1)
| ~ ssItem(X1)
| ~ ssList(X0) ),
inference(cnf_transformation,[],[f244]) ).
tcf(c_433,negated_conjecture,
ssList(sk3),
inference(cnf_transformation,[],[f202]) ).
tcf(c_435,negated_conjecture,
neq(sk4,nil),
inference(cnf_transformation,[],[f215]) ).
tcf(c_436,negated_conjecture,
~ neq(sk3,nil),
inference(cnf_transformation,[],[f216]) ).
tcf(c_438,negated_conjecture,
( ssItem(sk5)
| ~ neq(sk4,nil) ),
inference(cnf_transformation,[],[f209]) ).
tcf(c_439,negated_conjecture,
( ( cons(sk5,nil) = sk3 )
| ~ neq(sk4,nil) ),
inference(cnf_transformation,[],[f211]) ).
tcf(c_548,negated_conjecture,
ssItem(sk5),
inference(global_subsumption_just,[status(thm)],[c_438,c_435,c_438]) ).
tcf(c_560,negated_conjecture,
cons(sk5,nil) = sk3,
inference(global_subsumption_just,[status(thm)],[c_439,c_435,c_439]) ).
tcf(c_2763,plain,
! [X0: $i,X1: $i] :
( ( X0 = X1 )
| ~ ssList(X1)
| ~ ssList(X0)
| ( X1 != sk3 )
| ( X0 != nil ) ),
inference(resolution_lifted,[status(thm)],[c_345,c_436]) ).
tcf(c_2764,plain,
( ( nil = sk3 )
| ~ ssList(nil)
| ~ ssList(sk3) ),
inference(unflattening,[status(thm)],[c_2763]) ).
tcf(c_2765,plain,
nil = sk3,
inference(global_subsumption_just,[status(thm)],[c_2764,c_433,c_253,c_2764]) ).
tcf(c_4686,plain,
cons(sk5,nil) = nil,
inference(light_normalisation,[status(thm)],[c_560,c_2765]) ).
tcf(c_9392,definition,
iPr_def_12 = cons(sk5,nil),
introduced(definition,[new_symbols(definition,[iPr_def_12])],[]) ).
tcf(c_9393,plain,
iPr_def_12 = nil,
inference(demodulation,[status(thm)],[c_4686,c_9392]) ).
tcf(c_9397,negated_conjecture,
ssItem(sk5),
inference(demodulation,[status(thm)],[c_548]) ).
tcf(c_11905,plain,
ssList(iPr_def_12),
inference(light_normalisation,[status(thm)],[c_253,c_9393]) ).
tcf(c_11909,plain,
cons(sk5,iPr_def_12) = iPr_def_12,
inference(light_normalisation,[status(thm)],[c_9392,c_9393]) ).
tcf(c_12077,plain,
! [X0: $i] :
( ~ ssItem(X0)
| ~ memberP(iPr_def_12,X0) ),
inference(light_normalisation,[status(thm)],[c_316,c_9393]) ).
tcf(c_12546,plain,
( memberP(iPr_def_12,sk5)
| ~ ssItem(sk5)
| ~ ssList(iPr_def_12) ),
inference(superposition,[status(thm)],[c_11909,c_383]) ).
tcf(c_12547,plain,
memberP(iPr_def_12,sk5),
inference(forward_subsumption_resolution,[status(thm)],[c_12546,c_9397,c_11905]) ).
tcf(c_12873,plain,
~ ssItem(sk5),
inference(superposition,[status(thm)],[c_12547,c_12077]) ).
tcf(c_12874,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_12873,c_9397]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC217-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.11/0.37 % Computer : n016.cluster.edu
% 0.11/0.37 % Model : x86_64 x86_64
% 0.11/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.37 % Memory : 8046.5625MB
% 0.11/0.37 % OS : Linux 6.8.0-71-generic
% 0.11/0.37 % CPULimit : 300
% 0.11/0.37 % WCLimit : 300
% 0.11/0.37 % DateTime : Thu Sep 24 17:07:29 UTC 2026
% 0.11/0.37 % CPUTime :
% 0.11/0.37 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.15/0.41 Running first-order theorem proving
% 0.15/0.41 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.15/0.42
% 0.15/0.42 % ======== iProver multi-core TPTP/SMT =========
% 0.15/0.42
% 0.15/0.42 % Detected problem language: tptp
% 0.15/0.43 % Proving...
% 1.61/1.29 % SZS status Started for theBenchmark.p
% 1.61/1.29 % SZS status Unsatisfiable for theBenchmark.p
% 1.61/1.29
% 1.61/1.29 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.61/1.29
% 1.61/1.29 % ------ iProver source info
% 1.61/1.29
% 1.61/1.29 % git: date: 2026-07-19 20:42:38 +0200
% 1.61/1.29 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.61/1.29 % git: non_committed_changes: false
% 1.61/1.29
% 1.61/1.29 % ------ Parsing...% successful
% 1.61/1.29
% 1.61/1.29
% 1.61/1.29 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.61/1.29
% 1.61/1.29 % ------ Preprocessing... sup_sim: 0 sf_s rm: 1 0s sf_e pe_s pe:1:0s pe_e sup_sim: 5 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 %
% 1.61/1.29
% 1.61/1.29 % ------ Preprocessing... gs_s sp: 2 0s gs_e snvd_s sp: 0 0s snvd_e %
% 1.61/1.29
% 1.61/1.29 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 1.61/1.29 % ------ Proving...
% 1.61/1.29 % ------ Problem Properties
% 1.61/1.29
% 1.61/1.29 %
% 1.61/1.29 % clauses 184
% 1.61/1.29 % conjectures 3
% 1.61/1.29 % EPR 58
% 1.61/1.29 % Horn 156
% 1.61/1.29 % unary 65
% 1.61/1.29 % binary 21
% 1.61/1.29 % lits 548
% 1.61/1.29 % lits eq 73
% 1.61/1.29 % fd_pure 0
% 1.61/1.29 % fd_pseudo 0
% 1.61/1.29 % fd_cond 15
% 1.61/1.29 % fd_pseudo_cond 14
% 1.61/1.29 % AC symbols 0
% 1.61/1.29
% 1.61/1.29 % ------ Schedule dynamic 5 is on
% 1.61/1.29
% 1.61/1.29 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.61/1.29
% 1.61/1.29
% 1.61/1.29 % ------
% 1.61/1.29 % Current options:
% 1.61/1.29 % ------
% 1.61/1.29
% 1.61/1.29
% 1.61/1.29 %
% 1.61/1.29
% 1.61/1.29 % ------ Proving...
% 1.61/1.29 %
% 1.61/1.29
% 1.61/1.29 % SZS status Unsatisfiable for theBenchmark.p
% 1.61/1.29
% 1.61/1.29 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.61/1.29
% 1.61/1.29
%------------------------------------------------------------------------------