%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWC209-1 : 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 : n006.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 1.05s 1.28s
% Output : CNFRefutation 1.05s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 6
% Syntax : Number of formulae : 17 ( 13 unt; 0 def)
% Number of atoms : 21 ( 8 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 8 ( 4 ~; 4 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 2 ( 1 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of types : 0 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 0 ( 0 sgn 0 !; 0 ?; 0 :)
% Comments :
%------------------------------------------------------------------------------
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,
neq(sk2,nil),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_7) ).
fof(f207,negated_conjecture,
~ neq(sk1,nil),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_8) ).
fof(f208,negated_conjecture,
( neq(sk3,nil)
| nil = sk4 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_9) ).
fof(f210,negated_conjecture,
( neq(sk3,nil)
| nil = sk3 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_11) ).
fof(f214,plain,
neq(sk4,nil),
inference(definition_unfolding,[],[f206,f204]) ).
fof(f215,plain,
~ neq(sk3,nil),
inference(definition_unfolding,[],[f207,f205]) ).
tcf(c_435,negated_conjecture,
neq(sk4,nil),
inference(cnf_transformation,[],[f214]) ).
tcf(c_436,negated_conjecture,
~ neq(sk3,nil),
inference(cnf_transformation,[],[f215]) ).
tcf(c_437,negated_conjecture,
( neq(sk3,nil)
| ( sk4 = nil ) ),
inference(cnf_transformation,[],[f208]) ).
tcf(c_439,negated_conjecture,
( neq(sk3,nil)
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f210]) ).
tcf(c_556,negated_conjecture,
sk3 = nil,
inference(global_subsumption_just,[status(thm)],[c_439,c_436,c_439]) ).
tcf(c_560,negated_conjecture,
sk4 = nil,
inference(global_subsumption_just,[status(thm)],[c_437,c_436,c_437]) ).
tcf(c_1682,plain,
neq(nil,nil),
inference(demodulation,[status(thm)],[c_435,c_560]) ).
tcf(c_1685,plain,
~ neq(nil,nil),
inference(light_normalisation,[status(thm)],[c_436,c_556]) ).
tcf(c_1686,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_1685,c_1682]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC209-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.11/0.37 % Computer : n006.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 16:59:42 UTC 2026
% 0.11/0.38 % CPUTime :
% 0.11/0.38 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.11/0.41 Running first-order theorem proving
% 0.11/0.41 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
% 0.11/0.42
% 0.11/0.42 % ======== iProver multi-core TPTP/SMT =========
% 0.11/0.42
% 0.11/0.42 % Detected problem language: tptp
% 0.11/0.43 % Proving...
% 1.05/1.28 % SZS status Started for theBenchmark.p
% 1.05/1.28 % SZS status Unsatisfiable for theBenchmark.p
% 1.05/1.28
% 1.05/1.28 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.05/1.28
% 1.05/1.28 % ------ iProver source info
% 1.05/1.28
% 1.05/1.28 % git: date: 2026-07-19 20:42:38 +0200
% 1.05/1.28 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.05/1.28 % git: non_committed_changes: false
% 1.05/1.28
% 1.05/1.28 % ------ Parsing...% successful
% 1.05/1.28
% 1.05/1.28
% 1.05/1.28 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.05/1.28
% 1.05/1.28 % ------ Preprocessing...%
% 1.05/1.28
% 1.05/1.28 % SZS status Unsatisfiable for theBenchmark.p
% 1.05/1.28
% 1.05/1.28 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.05/1.28
% 1.05/1.28
%------------------------------------------------------------------------------