%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PUZ011-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n009.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 1.67s 1.43s
% Output : CNFRefutation 1.67s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 7
% Syntax : Number of formulae : 25 ( 18 unt; 0 def)
% Number of atoms : 45 ( 0 equ)
% Maximal formula atoms : 5 ( 1 avg)
% Number of connectives : 48 ( 28 ~; 20 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 3 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 7 ( 6 usr; 3 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 4 con; 0-0 aty)
% Number of variables : 14 ( 0 sgn 14 !; 0 ?; 11 :)
% Comments :
%------------------------------------------------------------------------------
fof(f2,axiom,
ocean(indian),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',indian) ).
fof(f9,axiom,
borders(indian,india),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',indian_india) ).
fof(f12,axiom,
borders(indian,somalia),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',indian_somalia) ).
fof(f18,axiom,
african(zaire),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',zaire) ).
fof(f21,axiom,
african(somalia),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',somalia) ).
fof(f24,axiom,
asian(india),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',india) ).
fof(f27,negated_conjecture,
! [X2,X0,X1] :
( ~ asian(X2)
| ~ borders(X0,X2)
| ~ african(X1)
| ~ borders(X0,X1)
| ~ ocean(X0) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_there_is_a_common_ocean) ).
tcf(c_77,plain,
ocean(indian),
inference(cnf_transformation,[],[f2]) ).
tcf(c_84,plain,
borders(indian,india),
inference(cnf_transformation,[],[f9]) ).
tcf(c_87,plain,
borders(indian,somalia),
inference(cnf_transformation,[],[f12]) ).
tcf(c_90,plain,
african(zaire),
inference(cnf_transformation,[],[f18]) ).
tcf(c_93,plain,
african(somalia),
inference(cnf_transformation,[],[f21]) ).
tcf(c_96,plain,
asian(india),
inference(cnf_transformation,[],[f24]) ).
tcf(c_99,negated_conjecture,
! [X0: $i,X1: $i,X2: $i] :
( ~ asian(X2)
| ~ african(X1)
| ~ ocean(X0)
| ~ borders(X0,X2)
| ~ borders(X0,X1) ),
inference(cnf_transformation,[],[f27]) ).
tcf(c_101,negated_conjecture,
! [X0_iProver_ocean_1: iProver_ocean_1,X0_iProver_african_1: iProver_african_1,X1_iProver_african_1: iProver_african_1] :
( ~ asian(X1_iProver_african_1)
| ~ african(X0_iProver_african_1)
| ~ ocean(X0_iProver_ocean_1)
| ~ borders(X0_iProver_ocean_1,X1_iProver_african_1)
| ~ borders(X0_iProver_ocean_1,X0_iProver_african_1) ),
inference(subtyping,[status(esa)],[c_99]) ).
tcf(c_104,plain,
asian(india),
inference(subtyping,[status(esa)],[c_96]) ).
tcf(c_107,plain,
african(somalia),
inference(subtyping,[status(esa)],[c_93]) ).
tcf(c_110,plain,
african(zaire),
inference(subtyping,[status(esa)],[c_90]) ).
tcf(c_123,plain,
ocean(indian),
inference(subtyping,[status(esa)],[c_77]) ).
tcf(c_126,plain,
! [X0_iProver_african_1: iProver_african_1,X1_iProver_african_1: iProver_african_1] :
( ~ asian(X1_iProver_african_1)
| ~ african(X0_iProver_african_1)
| ~ borders(indian,X1_iProver_african_1)
| ~ borders(indian,X0_iProver_african_1) ),
inference(resolution,[status(thm)],[c_123,c_101]) ).
tcf(c_130,plain,
! [X0_iProver_african_1: iProver_african_1] :
( ~ asian(X0_iProver_african_1)
| ~ borders(indian,zaire)
| ~ borders(indian,X0_iProver_african_1) ),
inference(resolution,[status(thm)],[c_126,c_110]) ).
tcf(c_136,plain,
! [X0_iProver_african_1: iProver_african_1] :
( ~ asian(X0_iProver_african_1)
| ~ borders(indian,somalia)
| ~ borders(indian,X0_iProver_african_1) ),
inference(resolution,[status(thm)],[c_126,c_107]) ).
tcf(c_148,plain,
! [X0_iProver_african_1: iProver_african_1] :
( ~ asian(X0_iProver_african_1)
| ~ borders(indian,X0_iProver_african_1) ),
inference(global_subsumption_just,[status(thm)],[c_130,c_87,c_136]) ).
tcf(c_150,plain,
~ borders(indian,india),
inference(resolution,[status(thm)],[c_148,c_104]) ).
tcf(c_151,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_150,c_84]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PUZ011-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.11/0.58 % Computer : n009.cluster.edu
% 0.11/0.58 % Model : x86_64 x86_64
% 0.11/0.58 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.58 % Memory : 8046.5625MB
% 0.11/0.58 % OS : Linux 6.8.0-71-generic
% 0.11/0.58 % CPULimit : 300
% 0.11/0.58 % WCLimit : 300
% 0.11/0.58 % DateTime : Thu Sep 24 06:36:59 UTC 2026
% 0.11/0.58 % CPUTime :
% 0.11/0.58 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.11/0.62 Running EPR theorem proving
% 0.11/0.62 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s epr_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/0.63
% 0.14/0.63 % ======== iProver multi-core TPTP/SMT =========
% 0.14/0.63
% 0.14/0.63 % Detected problem language: tptp
% 0.14/0.64 % Proving...
% 1.67/1.43 % SZS status Started for theBenchmark.p
% 1.67/1.43 % SZS status Unsatisfiable for theBenchmark.p
% 1.67/1.43
% 1.67/1.43 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.67/1.43
% 1.67/1.43 % ------ iProver source info
% 1.67/1.43
% 1.67/1.43 % git: date: 2026-07-19 20:42:38 +0200
% 1.67/1.43 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.67/1.43 % git: non_committed_changes: false
% 1.67/1.43
% 1.67/1.43 % ------ Parsing...% successful
% 1.67/1.43
% 1.67/1.43
% 1.67/1.43 % ------ Clausification by vclausify_rel & Parsing by iProver...% ------ preprocesses with Option_epr_horn
% 1.67/1.43 %
% 1.67/1.43
% 1.67/1.43 % ------ Preprocessing... sf_s rm: 0 0s sf_e %
% 1.67/1.43
% 1.67/1.43 % ------ Preprocessing...% ------ preprocesses with Option_epr_horn
% 1.67/1.43 gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e
% 1.67/1.43 % ------ Proving...
% 1.67/1.43 % ------ Problem Properties
% 1.67/1.43
% 1.67/1.43 %
% 1.67/1.43 % clauses 24
% 1.67/1.43 % conjectures 1
% 1.67/1.43 % EPR 24
% 1.67/1.43 % Horn 24
% 1.67/1.43 % unary 23
% 1.67/1.43 % binary 0
% 1.67/1.43 % lits 28
% 1.67/1.43 % lits eq 0
% 1.67/1.43 % fd_pure 0
% 1.67/1.43 % fd_pseudo 0
% 1.67/1.43 % fd_cond 0
% 1.67/1.43 % fd_pseudo_cond 0
% 1.67/1.43 % AC symbols 0
% 1.67/1.43
% 1.67/1.43 % ------ Schedule EPR Horn non eq is on
% 1.67/1.43
% 1.67/1.43 % ------ no equalities: superposition off
% 1.67/1.43
% 1.67/1.43 % ------ Option_epr_horn Time Limit: Unbounded
% 1.67/1.43
% 1.67/1.43
% 1.67/1.43 % ------
% 1.67/1.43 % Current options:
% 1.67/1.43 % ------
% 1.67/1.43
% 1.67/1.43
% 1.67/1.43 %
% 1.67/1.43
% 1.67/1.43 % ------ Proving...
% 1.67/1.43 %
% 1.67/1.43
% 1.67/1.43 % SZS status Unsatisfiable for theBenchmark.p
% 1.67/1.43
% 1.67/1.43 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.67/1.43
% 1.67/1.43
%------------------------------------------------------------------------------