%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PUZ008-2 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n026.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 02:32:40 PM UTC 2026
% Result : Unsatisfiable 2.04s 1.24s
% Output : CNFRefutation 2.04s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 13
% Syntax : Number of formulae : 27 ( 5 unt; 0 def)
% Number of atoms : 49 ( 0 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 46 ( 24 ~; 22 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 3 avg)
% Maximal term depth : 3 ( 2 avg)
% Number of types : 0 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-3 aty)
% Number of functors : 10 ( 10 usr; 6 con; 0-2 aty)
% Number of variables : 0 ( 0 sgn 0 !; 0 ?; 0 :)
% Comments :
%------------------------------------------------------------------------------
fof(f6,axiom,
( banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatoneast)
| ~ banks(west(m(n3),c(n3)),east(m(n0),c(n0)),boatonwest) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',bmmmccc_x_to_mmmc_bcc) ).
fof(f7,axiom,
( banks(west(m(n0),c(n1)),east(m(n3),c(n2)),boatoneast)
| ~ banks(west(m(n0),c(n3)),east(m(n3),c(n0)),boatonwest) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',bccc_mmm_to_c_bmmmcc) ).
fof(f8,axiom,
( banks(west(m(n3),c(n0)),east(m(n0),c(n3)),boatoneast)
| ~ banks(west(m(n3),c(n2)),east(m(n0),c(n1)),boatonwest) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',bmmmcc_c_to_mmm_bccc) ).
fof(f9,axiom,
( banks(west(m(n0),c(n0)),east(m(n3),c(n3)),boatoneast)
| ~ banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatonwest) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',bcc_mmmc_to_x_bmmmccc) ).
fof(f10,axiom,
( banks(west(m(n0),c(n3)),east(m(n3),c(n0)),boatonwest)
| ~ banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatoneast) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cc_bmmmc_to_bccc_mmm) ).
fof(f11,axiom,
( banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatonwest)
| ~ banks(west(m(n0),c(n1)),east(m(n3),c(n2)),boatoneast) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',c_bmmmcc_to_bcc_mmmc) ).
fof(f12,axiom,
( banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatonwest)
| ~ banks(west(m(n3),c(n0)),east(m(n0),c(n3)),boatoneast) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',mmm_bccc_to_bmmmc_cc) ).
fof(f14,axiom,
( banks(west(m(n3),c(n2)),east(m(n0),c(n1)),boatonwest)
| ~ banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatoneast) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',mmmc_bcc_to_bmmmcc_c) ).
fof(f20,axiom,
( banks(west(m(n1),c(n1)),east(m(n2),c(n2)),boatoneast)
| ~ banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatonwest) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',bmmmc_cc_to_mc_bmmcc) ).
fof(f21,axiom,
( banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatoneast)
| ~ banks(west(m(n2),c(n2)),east(m(n1),c(n1)),boatonwest) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',bmmcc_mc_to_cc_bmmmc) ).
fof(f29,axiom,
( banks(west(m(n2),c(n2)),east(m(n1),c(n1)),boatonwest)
| ~ banks(west(m(n1),c(n1)),east(m(n2),c(n2)),boatoneast) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',mc_bmmcc_to_bmmcc_mc) ).
fof(f31,axiom,
banks(west(m(n3),c(n3)),east(m(n0),c(n0)),boatonwest),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',starting_configuration) ).
fof(f32,negated_conjecture,
~ banks(west(m(n0),c(n0)),east(m(n3),c(n3)),boatoneast),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_can_get_across) ).
tcf(c_81,plain,
banks(west(m(n3),c(n3)),east(m(n0),c(n0)),boatonwest),
inference(cnf_transformation,[],[f31]) ).
tcf(c_82,negated_conjecture,
~ banks(west(m(n0),c(n0)),east(m(n3),c(n3)),boatoneast),
inference(cnf_transformation,[],[f32]) ).
tcf(c_90,plain,
( banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatoneast)
| ~ banks(west(m(n2),c(n2)),east(m(n1),c(n1)),boatonwest) ),
inference(cnf_transformation,[],[f21]) ).
tcf(c_91,plain,
( banks(west(m(n1),c(n1)),east(m(n2),c(n2)),boatoneast)
| ~ banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatonwest) ),
inference(cnf_transformation,[],[f20]) ).
tcf(c_97,plain,
( banks(west(m(n3),c(n2)),east(m(n0),c(n1)),boatonwest)
| ~ banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatoneast) ),
inference(cnf_transformation,[],[f14]) ).
tcf(c_99,plain,
( banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatonwest)
| ~ banks(west(m(n3),c(n0)),east(m(n0),c(n3)),boatoneast) ),
inference(cnf_transformation,[],[f12]) ).
tcf(c_100,plain,
( banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatonwest)
| ~ banks(west(m(n0),c(n1)),east(m(n3),c(n2)),boatoneast) ),
inference(cnf_transformation,[],[f11]) ).
tcf(c_101,plain,
( banks(west(m(n0),c(n3)),east(m(n3),c(n0)),boatonwest)
| ~ banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatoneast) ),
inference(cnf_transformation,[],[f10]) ).
tcf(c_102,plain,
( banks(west(m(n0),c(n0)),east(m(n3),c(n3)),boatoneast)
| ~ banks(west(m(n0),c(n2)),east(m(n3),c(n1)),boatonwest) ),
inference(cnf_transformation,[],[f9]) ).
tcf(c_103,plain,
( banks(west(m(n3),c(n0)),east(m(n0),c(n3)),boatoneast)
| ~ banks(west(m(n3),c(n2)),east(m(n0),c(n1)),boatonwest) ),
inference(cnf_transformation,[],[f8]) ).
tcf(c_104,plain,
( banks(west(m(n0),c(n1)),east(m(n3),c(n2)),boatoneast)
| ~ banks(west(m(n0),c(n3)),east(m(n3),c(n0)),boatonwest) ),
inference(cnf_transformation,[],[f7]) ).
tcf(c_105,plain,
( banks(west(m(n3),c(n1)),east(m(n0),c(n2)),boatoneast)
| ~ banks(west(m(n3),c(n3)),east(m(n0),c(n0)),boatonwest) ),
inference(cnf_transformation,[],[f6]) ).
tcf(c_111,plain,
( banks(west(m(n2),c(n2)),east(m(n1),c(n1)),boatonwest)
| ~ banks(west(m(n1),c(n1)),east(m(n2),c(n2)),boatoneast) ),
inference(cnf_transformation,[],[f29]) ).
tcf(c_113,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_90,c_91,c_97,c_99,c_100,c_101,c_102,c_103,c_104,c_105,c_111,c_82,c_81]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PUZ008-2 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.10/0.38 % Computer : n026.cluster.edu
% 0.10/0.38 % Model : x86_64 x86_64
% 0.10/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.38 % Memory : 8046.5625MB
% 0.10/0.38 % OS : Linux 6.8.0-71-generic
% 0.10/0.38 % CPULimit : 300
% 0.10/0.38 % WCLimit : 300
% 0.10/0.38 % DateTime : Thu Sep 24 06:39:09 UTC 2026
% 0.10/0.38 % CPUTime :
% 0.10/0.38 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.10/0.42 Running EPR theorem proving
% 0.10/0.42 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s epr_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.43
% 0.10/0.43 % ======== iProver multi-core TPTP/SMT =========
% 0.10/0.43
% 0.10/0.43 % Detected problem language: tptp
% 0.10/0.44 % Proving...
% 2.04/1.24 % SZS status Started for theBenchmark.p
% 2.04/1.24 % SZS status Unsatisfiable for theBenchmark.p
% 2.04/1.24
% 2.04/1.24 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 2.04/1.24
% 2.04/1.24 % ------ iProver source info
% 2.04/1.24
% 2.04/1.24 % git: date: 2026-07-19 20:42:38 +0200
% 2.04/1.24 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 2.04/1.24 % git: non_committed_changes: false
% 2.04/1.24
% 2.04/1.24 % ------ Parsing...% successful
% 2.04/1.24
% 2.04/1.24
% 2.04/1.24 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 2.04/1.24
% 2.04/1.24 % ------ Preprocessing...%
% 2.04/1.24
% 2.04/1.24 % SZS status Unsatisfiable for theBenchmark.p
% 2.04/1.24
% 2.04/1.24 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.04/1.24
% 2.04/1.24
%------------------------------------------------------------------------------