%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWC207-1 : 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 : n017.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 03:08:52 PM UTC 2026
% Result : Unsatisfiable 3.95s 1.28s
% Output : CNFRefutation 3.95s
% Verified :
% SZS Type : ERROR: Analysing output (Could not find formula named f230ERROR: Could not build tree for root c_2997ERROR: 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(f203,negated_conjecture,
ssList(sk4),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_4) ).
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(f208,negated_conjecture,
( nil = sk4
| ssItem(sk5) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_9) ).
fof(f209,negated_conjecture,
( nil = sk3
| ssItem(sk5) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_10) ).
fof(f210,negated_conjecture,
( nil = sk4
| cons(sk5,nil) = sk3 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_11) ).
fof(f211,plain,
( nil = sk4
| sk3 = cons(sk5,nil) ),
inference(reorient_equations,[],[f210]) ).
fof(f220,plain,
neq(sk4,nil),
inference(definition_unfolding,[],[f206,f204]) ).
fof(f221,plain,
~ neq(sk3,nil),
inference(definition_unfolding,[],[f207,f205]) ).
tcf(c_252,negated_conjecture,
ssList(sk3),
inference(cnf_transformation,[],[f202]) ).
tcf(c_253,negated_conjecture,
ssList(sk4),
inference(cnf_transformation,[],[f203]) ).
tcf(c_254,negated_conjecture,
neq(sk4,nil),
inference(cnf_transformation,[],[f220]) ).
tcf(c_255,negated_conjecture,
~ neq(sk3,nil),
inference(cnf_transformation,[],[f221]) ).
tcf(c_256,negated_conjecture,
( ssItem(sk5)
| ( sk4 = nil ) ),
inference(cnf_transformation,[],[f208]) ).
tcf(c_257,negated_conjecture,
( ssItem(sk5)
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f209]) ).
tcf(c_258,negated_conjecture,
( ( sk4 = nil )
| ( cons(sk5,nil) = sk3 ) ),
inference(cnf_transformation,[],[f211]) ).
tcf(c_265,plain,
ssList(nil),
inference(cnf_transformation,[],[f8]) ).
tcf(c_267,plain,
! [X0: $i] :
( ~ ssList(X0)
| ~ neq(X0,X0) ),
inference(cnf_transformation,[],[f230]) ).
tcf(c_269,plain,
! [X0: $i,X1: $i] :
( neq(X1,X0)
| ( X0 = X1 )
| ~ ssList(X1)
| ~ ssList(X0) ),
inference(cnf_transformation,[],[f102]) ).
tcf(c_282,plain,
! [X0: $i,X1: $i] :
( memberP(cons(X1,X0),X1)
| ~ ssItem(X1)
| ~ ssList(X0) ),
inference(cnf_transformation,[],[f231]) ).
tcf(c_283,plain,
! [X0: $i] :
( ~ ssItem(X0)
| ~ memberP(nil,X0) ),
inference(cnf_transformation,[],[f71]) ).
tcf(c_1034,plain,
! [X0: $i,X1: $i] :
( ( X0 = X1 )
| ~ ssList(X1)
| ~ ssList(X0)
| ( X1 != sk3 )
| ( X0 != nil ) ),
inference(resolution_lifted,[status(thm)],[c_269,c_255]) ).
tcf(c_1035,plain,
( ( nil = sk3 )
| ~ ssList(nil)
| ~ ssList(sk3) ),
inference(unflattening,[status(thm)],[c_1034]) ).
tcf(c_1036,plain,
nil = sk3,
inference(global_subsumption_just,[status(thm)],[c_1035,c_252,c_265,c_1035]) ).
tcf(c_1055,plain,
! [X0: $i] :
( ~ ssList(X0)
| ( X0 != nil )
| ( X0 != sk4 ) ),
inference(resolution_lifted,[status(thm)],[c_254,c_267]) ).
tcf(c_1056,plain,
( ~ ssList(sk4)
| ( sk4 != nil ) ),
inference(unflattening,[status(thm)],[c_1055]) ).
tcf(c_1057,plain,
sk4 != nil,
inference(global_subsumption_just,[status(thm)],[c_1056,c_253,c_1056]) ).
tcf(c_1068,plain,
cons(sk5,nil) = sk3,
inference(backward_subsumption_resolution,[status(thm)],[c_258,c_1057]) ).
tcf(c_1074,negated_conjecture,
ssItem(sk5),
inference(global_subsumption_just,[status(thm)],[c_257,c_253,c_256,c_1056]) ).
tcf(c_1374,plain,
cons(sk5,nil) = nil,
inference(light_normalisation,[status(thm)],[c_1068,c_1036]) ).
tcf(c_2994,plain,
( memberP(nil,sk5)
| ~ ssItem(sk5)
| ~ ssList(nil) ),
inference(superposition,[status(thm)],[c_1374,c_282]) ).
tcf(c_2995,plain,
memberP(nil,sk5),
inference(forward_subsumption_resolution,[status(thm)],[c_2994,c_1074,c_265]) ).
tcf(c_2996,plain,
~ ssItem(sk5),
inference(superposition,[status(thm)],[c_2995,c_283]) ).
tcf(c_2997,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_2996,c_1074]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC207-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.10/0.36 % Computer : n017.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Thu Sep 24 16:54:16 UTC 2026
% 0.04/0.36 % CPUTime :
% 0.04/0.36 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.04/0.40 Running first-order theorem proving
% 0.04/0.40 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
% 0.04/0.41
% 0.04/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.04/0.41
% 0.04/0.41 % Detected problem language: tptp
% 0.04/0.43 % Proving...
% 3.95/1.28 % SZS status Started for theBenchmark.p
% 3.95/1.28 % SZS status Unsatisfiable for theBenchmark.p
% 3.95/1.28
% 3.95/1.28 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 3.95/1.28
% 3.95/1.28 % ------ iProver source info
% 3.95/1.28
% 3.95/1.28 % git: date: 2026-07-19 20:42:38 +0200
% 3.95/1.28 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 3.95/1.28 % git: non_committed_changes: false
% 3.95/1.28
% 3.95/1.28 % ------ Parsing...% successful
% 3.95/1.28
% 3.95/1.28
% 3.95/1.28 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 3.95/1.28
% 3.95/1.28 % ------ Preprocessing... sup_sim: 0 sf_s rm: 1 0s sf_e pe_s pe:1:0s pe_e sup_sim: 4 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 %
% 3.95/1.28
% 3.95/1.28 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 3.95/1.28
% 3.95/1.28 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 3.95/1.28 % ------ Proving...
% 3.95/1.28 % ------ Problem Properties
% 3.95/1.28
% 3.95/1.28 %
% 3.95/1.28 % clauses 41
% 3.95/1.28 % conjectures 3
% 3.95/1.28 % EPR 17
% 3.95/1.28 % Horn 38
% 3.95/1.28 % unary 8
% 3.95/1.28 % binary 5
% 3.95/1.28 % lits 146
% 3.95/1.28 % lits eq 27
% 3.95/1.28 % fd_pure 0
% 3.95/1.28 % fd_pseudo 0
% 3.95/1.28 % fd_cond 3
% 3.95/1.28 % fd_pseudo_cond 7
% 3.95/1.28 % AC symbols 0
% 3.95/1.28
% 3.95/1.28 % ------ Schedule dynamic 5 is on
% 3.95/1.28
% 3.95/1.28 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.95/1.28
% 3.95/1.28
% 3.95/1.28 % ------
% 3.95/1.28 % Current options:
% 3.95/1.28 % ------
% 3.95/1.28
% 3.95/1.28
% 3.95/1.28 %
% 3.95/1.28
% 3.95/1.28 % ------ Proving...
% 3.95/1.28 %
% 3.95/1.28
% 3.95/1.28 % SZS status Unsatisfiable for theBenchmark.p
% 3.95/1.28
% 3.95/1.28 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.95/1.28
% 3.95/1.28
%------------------------------------------------------------------------------