%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PLA002-1 : 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 : 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 02:30:57 PM UTC 2026
% Result : Unsatisfiable 1.20s 1.37s
% Output : CNFRefutation 1.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 9
% Number of leaves : 9
% Syntax : Number of formulae : 27 ( 9 unt; 0 def)
% Number of atoms : 49 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 51 ( 29 ~; 22 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 11 ( 11 usr; 6 con; 0-2 aty)
% Number of variables : 28 ( 0 sgn 28 !; 0 ?; 19 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( cold(X1)
| warm(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',warm_or_cold) ).
fof(f2,axiom,
! [X0] :
( at(b,walk(b,X0))
| ~ at(a,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',walk_a_to_b) ).
fof(f5,axiom,
! [X0] :
( at(a,drive(a,X0))
| ~ at(b,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',drive_b_to_a) ).
fof(f7,axiom,
! [X0] :
( at(b,skate(b,X0))
| ~ at(c,X0)
| ~ cold(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cross_river_c_to_b) ).
fof(f9,axiom,
! [X0] :
( at(b,climb(b,X0))
| ~ at(d,X0)
| ~ warm(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',climb_mountain_d_to_b) ).
fof(f11,axiom,
! [X0] :
( at(c,go(c,X0))
| ~ at(d,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',go_d_to_c) ).
fof(f15,axiom,
! [X0] :
( at(d,go(d,X0))
| ~ at(f,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',go_f_to_d) ).
fof(f16,axiom,
at(f,s0),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',initial) ).
fof(f17,negated_conjecture,
! [X0] : ~ at(a,X0),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_you_can_get_to_a) ).
tcf(c_66,plain,
! [X0: $i,X1: $i] :
( cold(X1)
| warm(X0) ),
inference(cnf_transformation,[],[f1]) ).
tcf(c_67,plain,
! [X0: $i] :
( at(b,walk(b,X0))
| ~ at(a,X0) ),
inference(cnf_transformation,[],[f2]) ).
tcf(c_70,plain,
! [X0: $i] :
( at(a,drive(a,X0))
| ~ at(b,X0) ),
inference(cnf_transformation,[],[f5]) ).
tcf(c_72,plain,
! [X0: $i] :
( at(b,skate(b,X0))
| ~ cold(X0)
| ~ at(c,X0) ),
inference(cnf_transformation,[],[f7]) ).
tcf(c_74,plain,
! [X0: $i] :
( at(b,climb(b,X0))
| ~ warm(X0)
| ~ at(d,X0) ),
inference(cnf_transformation,[],[f9]) ).
tcf(c_76,plain,
! [X0: $i] :
( at(c,go(c,X0))
| ~ at(d,X0) ),
inference(cnf_transformation,[],[f11]) ).
tcf(c_80,plain,
! [X0: $i] :
( at(d,go(d,X0))
| ~ at(f,X0) ),
inference(cnf_transformation,[],[f15]) ).
tcf(c_81,plain,
at(f,s0),
inference(cnf_transformation,[],[f16]) ).
tcf(c_82,negated_conjecture,
! [X0: $i] : ~ at(a,X0),
inference(cnf_transformation,[],[f17]) ).
tcf(c_99,plain,
! [X0: $i] : ~ at(a,X0),
inference(global_subsumption_just,[status(thm)],[c_67,c_82]) ).
tcf(c_106,plain,
! [X0: $i] : ~ at(b,X0),
inference(backward_subsumption_resolution,[status(thm)],[c_70,c_99]) ).
tcf(c_110,plain,
! [X0: $i] :
( ~ warm(X0)
| ~ at(d,X0) ),
inference(backward_subsumption_resolution,[status(thm)],[c_74,c_106]) ).
tcf(c_111,plain,
! [X0: $i] :
( ~ cold(X0)
| ~ at(c,X0) ),
inference(backward_subsumption_resolution,[status(thm)],[c_72,c_106]) ).
tcf(c_150,plain,
! [X0: $i,X1: $i] :
( cold(X1)
| ~ at(d,X0) ),
inference(resolution,[status(thm)],[c_66,c_110]) ).
tcf(c_160,plain,
! [X0: $i,X1: $i] :
( ~ at(d,X1)
| ~ at(c,X0) ),
inference(resolution,[status(thm)],[c_150,c_111]) ).
tcf(c_169,plain,
! [X0: $i] : ~ at(d,X0),
inference(backward_subsumption_resolution,[status(thm)],[c_76,c_160]) ).
tcf(c_178,plain,
! [X0: $i] : ~ at(f,X0),
inference(backward_subsumption_resolution,[status(thm)],[c_80,c_169]) ).
tcf(c_186,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[c_81,c_178]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PLA002-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.11/0.46 % Computer : n006.cluster.edu
% 0.11/0.46 % Model : x86_64 x86_64
% 0.11/0.46 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.46 % Memory : 8046.5625MB
% 0.11/0.46 % OS : Linux 6.8.0-71-generic
% 0.11/0.46 % CPULimit : 300
% 0.11/0.46 % WCLimit : 300
% 0.11/0.46 % DateTime : Thu Sep 24 06:07:30 UTC 2026
% 0.11/0.47 % CPUTime :
% 0.11/0.47 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.11/0.50 Running first-order theorem proving
% 0.11/0.50 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
% 0.11/0.52
% 0.11/0.52 % ======== iProver multi-core TPTP/SMT =========
% 0.11/0.52
% 0.11/0.52 % Detected problem language: tptp
% 0.11/0.53 % Proving...
% 1.20/1.37 % SZS status Started for theBenchmark.p
% 1.20/1.37 % SZS status Unsatisfiable for theBenchmark.p
% 1.20/1.37
% 1.20/1.37 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.20/1.37
% 1.20/1.37 % ------ iProver source info
% 1.20/1.37
% 1.20/1.37 % git: date: 2026-07-19 20:42:38 +0200
% 1.20/1.37 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.20/1.37 % git: non_committed_changes: false
% 1.20/1.37
% 1.20/1.37 % ------ Parsing...% successful
% 1.20/1.37
% 1.20/1.37
% 1.20/1.37 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.20/1.37
% 1.20/1.37 % ------ Preprocessing... sf_s rm: 2 0s sf_e pe_s pe:1:0s pe:2:0s pe_e %
% 1.20/1.37
% 1.20/1.37 % SZS status Unsatisfiable for theBenchmark.p
% 1.20/1.37
% 1.20/1.37 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.20/1.37
% 1.20/1.37
%------------------------------------------------------------------------------