%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PLA031-1.001 : TPTP v9.3.1. Released v3.5.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n008.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 02:31:02 PM UTC 2026
% Result : Unsatisfiable 2.17s 11.16s
% Output : CNFRefutation 2.17s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 22
% Syntax : Number of formulae : 75 ( 34 unt; 0 def)
% Number of atoms : 134 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 126 ( 67 ~; 59 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 4 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 : 5 ( 4 usr; 1 prp; 0-6 aty)
% Number of functors : 7 ( 7 usr; 7 con; 0-0 aty)
% Number of variables : 148 ( 0 sgn 148 !; 0 ?; 92 :)
% Comments :
%------------------------------------------------------------------------------
fof(f7,axiom,
! [X2,X3,X0,X1,X4] :
( s(X0,truck2,X2,X3,X4,X1)
| ~ s(X0,X1,X2,X3,X4,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',load7) ).
fof(f8,axiom,
! [X2,X3,X0,X1,X4] :
( ~ s(X0,truck2,X2,X3,X4,X1)
| s(X0,X1,X2,X3,X4,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',load8) ).
fof(f9,axiom,
! [X2,X3,X0,X1,X4] :
( s(X0,X1,truck1,X3,X2,X4)
| ~ neq(X3,truck1)
| ~ s(X0,X1,X2,X3,X2,X4) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',board1) ).
fof(f10,axiom,
! [X2,X3,X0,X1,X4] :
( ~ s(X0,X1,truck1,X3,X2,X4)
| s(X0,X1,X2,X3,X2,X4) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',board2) ).
fof(f11,axiom,
! [X2,X3,X0,X1,X4] :
( s(X0,X1,truck2,X3,X4,X2)
| ~ neq(X3,truck2)
| ~ s(X0,X1,X2,X3,X4,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',board3) ).
fof(f12,axiom,
! [X2,X3,X0,X1,X4] :
( ~ s(X0,X1,truck2,X3,X4,X2)
| s(X0,X1,X2,X3,X4,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',board4) ).
fof(f17,axiom,
! [X2,X3,X0,X1,X4,X5] :
( s(X0,X1,truck1,X2,X5,X4)
| ~ link(X3,X5)
| ~ s(X0,X1,truck1,X2,X3,X4) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',drive1) ).
fof(f18,axiom,
! [X2,X3,X0,X1,X4,X5] :
( s(X0,X1,truck2,X2,X3,X5)
| ~ link(X4,X5)
| ~ s(X0,X1,truck2,X2,X3,X4) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',drive2) ).
fof(f21,axiom,
! [X2,X3,X0,X1,X6,X4,X5] :
( s(X0,X1,X6,X3,X4,X5)
| ~ path(X2,X6)
| ~ s(X0,X1,X2,X3,X4,X5) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',walk1) ).
fof(f22,axiom,
! [X2,X3,X0,X1,X6,X4,X5] :
( s(X0,X1,X2,X6,X4,X5)
| ~ path(X3,X6)
| ~ s(X0,X1,X2,X3,X4,X5) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',walk2) ).
fof(f47,axiom,
neq(s1,truck1),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',neq25) ).
fof(f48,axiom,
neq(s1,truck2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',neq26) ).
fof(f92,axiom,
path(p2_0,s2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map6) ).
fof(f93,axiom,
path(s0,p2_0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map7) ).
fof(f96,axiom,
path(p2_1,s2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map10) ).
fof(f97,axiom,
path(s1,p2_1),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map11) ).
fof(f101,axiom,
link(s0,s2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map15) ).
fof(f102,axiom,
link(s2,s0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map16) ).
fof(f103,axiom,
link(s1,s2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map17) ).
fof(f104,axiom,
link(s2,s1),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',map18) ).
fof(f105,axiom,
s(s2,s2,s0,s1,s0,s2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',init) ).
fof(f106,negated_conjecture,
~ s(s2,s1,s2,s2,s2,s0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',goal) ).
tcf(c_161,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,truck2,X2,X3,X4,X1)
| ~ s(X0,X1,X2,X3,X4,X1) ),
inference(cnf_transformation,[],[f7]) ).
tcf(c_162,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,X4,X1,X2,X3,X4)
| ~ s(X0,truck2,X1,X2,X3,X4) ),
inference(cnf_transformation,[],[f8]) ).
tcf(c_163,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,X1,truck1,X3,X2,X4)
| ~ neq(X3,truck1)
| ~ s(X0,X1,X2,X3,X2,X4) ),
inference(cnf_transformation,[],[f9]) ).
tcf(c_164,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,X1,X3,X2,X3,X4)
| ~ s(X0,X1,truck1,X2,X3,X4) ),
inference(cnf_transformation,[],[f10]) ).
tcf(c_165,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,X1,truck2,X3,X4,X2)
| ~ neq(X3,truck2)
| ~ s(X0,X1,X2,X3,X4,X2) ),
inference(cnf_transformation,[],[f11]) ).
tcf(c_166,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,X1,X4,X2,X3,X4)
| ~ s(X0,X1,truck2,X2,X3,X4) ),
inference(cnf_transformation,[],[f12]) ).
tcf(c_171,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i] :
( s(X0,X1,truck1,X2,X5,X4)
| ~ link(X3,X5)
| ~ s(X0,X1,truck1,X2,X3,X4) ),
inference(cnf_transformation,[],[f17]) ).
tcf(c_172,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i] :
( s(X0,X1,truck2,X2,X3,X5)
| ~ link(X4,X5)
| ~ s(X0,X1,truck2,X2,X3,X4) ),
inference(cnf_transformation,[],[f18]) ).
tcf(c_175,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i,X6: $i] :
( s(X0,X1,X6,X3,X4,X5)
| ~ path(X2,X6)
| ~ s(X0,X1,X2,X3,X4,X5) ),
inference(cnf_transformation,[],[f21]) ).
tcf(c_176,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i,X6: $i] :
( s(X0,X1,X2,X6,X4,X5)
| ~ path(X3,X6)
| ~ s(X0,X1,X2,X3,X4,X5) ),
inference(cnf_transformation,[],[f22]) ).
tcf(c_201,plain,
neq(s1,truck1),
inference(cnf_transformation,[],[f47]) ).
tcf(c_202,plain,
neq(s1,truck2),
inference(cnf_transformation,[],[f48]) ).
tcf(c_246,plain,
path(p2_0,s2),
inference(cnf_transformation,[],[f92]) ).
tcf(c_247,plain,
path(s0,p2_0),
inference(cnf_transformation,[],[f93]) ).
tcf(c_250,plain,
path(p2_1,s2),
inference(cnf_transformation,[],[f96]) ).
tcf(c_251,plain,
path(s1,p2_1),
inference(cnf_transformation,[],[f97]) ).
tcf(c_255,plain,
link(s0,s2),
inference(cnf_transformation,[],[f101]) ).
tcf(c_256,plain,
link(s2,s0),
inference(cnf_transformation,[],[f102]) ).
tcf(c_257,plain,
link(s1,s2),
inference(cnf_transformation,[],[f103]) ).
tcf(c_258,plain,
link(s2,s1),
inference(cnf_transformation,[],[f104]) ).
tcf(c_259,plain,
s(s2,s2,s0,s1,s0,s2),
inference(cnf_transformation,[],[f105]) ).
tcf(c_260,negated_conjecture,
~ s(s2,s1,s2,s2,s2,s0),
inference(cnf_transformation,[],[f106]) ).
tcf(c_279,plain,
s(s2,truck2,s0,s1,s0,s2),
inference(resolution,[status(thm)],[c_161,c_259]) ).
tcf(c_289,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( s(X0,X1,truck1,s1,X2,X3)
| ~ s(X0,X1,X2,s1,X2,X3) ),
inference(resolution,[status(thm)],[c_163,c_201]) ).
tcf(c_301,plain,
s(s2,truck2,truck1,s1,s0,s2),
inference(resolution,[status(thm)],[c_289,c_279]) ).
tcf(c_313,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( s(X0,X1,truck2,s1,X3,X2)
| ~ s(X0,X1,X2,s1,X3,X2) ),
inference(resolution,[status(thm)],[c_165,c_202]) ).
tcf(c_355,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( s(X0,X1,truck1,X2,s2,X3)
| ~ s(X0,X1,truck1,X2,s0,X3) ),
inference(resolution,[status(thm)],[c_171,c_255]) ).
tcf(c_371,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( s(X0,X1,truck2,X2,X3,s2)
| ~ s(X0,X1,truck2,X2,X3,s1) ),
inference(resolution,[status(thm)],[c_172,c_257]) ).
tcf(c_373,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( s(X0,X1,truck2,X2,X3,s1)
| ~ s(X0,X1,truck2,X2,X3,s2) ),
inference(resolution,[status(thm)],[c_172,c_258]) ).
tcf(c_449,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
( s(X0,X1,X2,p2_1,X3,X4)
| ~ s(X0,X1,X2,s1,X3,X4) ),
inference(resolution,[status(thm)],[c_176,c_251]) ).
tcf(c_491,plain,
s(s2,truck2,truck1,s1,s2,s2),
inference(resolution,[status(thm)],[c_355,c_301]) ).
tcf(c_525,plain,
s(s2,truck2,s2,s1,s2,s2),
inference(resolution,[status(thm)],[c_491,c_164]) ).
tcf(c_570,plain,
s(s2,truck2,truck2,s1,s2,s2),
inference(resolution,[status(thm)],[c_525,c_313]) ).
tcf(c_595,plain,
! [X0: $i] :
( s(s2,s1,s2,s2,s2,s0)
| ~ path(X0,s2)
| ~ s(s2,s1,X0,s2,s2,s0) ),
inference(instantiation,[status(thm)],[c_175]) ).
tcf(c_596,plain,
! [X0: $i] :
( ~ s(s2,s1,X0,s2,s2,s0)
| ~ path(X0,s2) ),
inference(global_subsumption_just,[status(thm)],[c_595,c_260,c_595]) ).
tcf(c_597,plain,
! [X0: $i] :
( ~ path(X0,s2)
| ~ s(s2,s1,X0,s2,s2,s0) ),
inference(renaming,[status(thm)],[c_596]) ).
tcf(c_691,plain,
s(s2,truck2,truck2,s1,s2,s1),
inference(resolution,[status(thm)],[c_570,c_373]) ).
tcf(c_767,plain,
( ~ path(p2_0,s2)
| ~ s(s2,s1,p2_0,s2,s2,s0) ),
inference(instantiation,[status(thm)],[c_597]) ).
tcf(c_911,plain,
! [X0: $i] :
( s(s2,s1,p2_0,s2,s2,s0)
| ~ path(X0,p2_0)
| ~ s(s2,s1,X0,s2,s2,s0) ),
inference(instantiation,[status(thm)],[c_175]) ).
tcf(c_912,plain,
! [X0: $i] :
( ~ s(s2,s1,X0,s2,s2,s0)
| ~ path(X0,p2_0) ),
inference(global_subsumption_just,[status(thm)],[c_911,c_246,c_767,c_911]) ).
tcf(c_913,plain,
! [X0: $i] :
( ~ path(X0,p2_0)
| ~ s(s2,s1,X0,s2,s2,s0) ),
inference(renaming,[status(thm)],[c_912]) ).
tcf(c_1099,plain,
s(s2,s1,truck2,s1,s2,s1),
inference(resolution,[status(thm)],[c_691,c_162]) ).
tcf(c_1566,plain,
( ~ path(s0,p2_0)
| ~ s(s2,s1,s0,s2,s2,s0) ),
inference(instantiation,[status(thm)],[c_913]) ).
tcf(c_1573,plain,
! [X0: $i,X1: $i] :
( s(s2,s1,X0,s2,s2,s0)
| ~ path(X1,s2)
| ~ s(s2,s1,X0,X1,s2,s0) ),
inference(instantiation,[status(thm)],[c_176]) ).
tcf(c_2377,plain,
( s(s2,s1,s0,s2,s2,s0)
| ~ s(s2,s1,truck2,s2,s2,s0) ),
inference(instantiation,[status(thm)],[c_166]) ).
tcf(c_2532,plain,
! [X0: $i] :
( s(s2,s1,X0,s2,s2,s0)
| ~ path(p2_1,s2)
| ~ s(s2,s1,X0,p2_1,s2,s0) ),
inference(instantiation,[status(thm)],[c_1573]) ).
tcf(c_2533,plain,
! [X0: $i] :
( s(s2,s1,X0,s2,s2,s0)
| ~ s(s2,s1,X0,p2_1,s2,s0) ),
inference(global_subsumption_just,[status(thm)],[c_2532,c_250,c_2532]) ).
tcf(c_3257,plain,
s(s2,s1,truck2,s1,s2,s2),
inference(resolution,[status(thm)],[c_1099,c_371]) ).
tcf(c_6214,plain,
( s(s2,s1,truck2,s2,s2,s0)
| ~ s(s2,s1,truck2,p2_1,s2,s0) ),
inference(instantiation,[status(thm)],[c_2533]) ).
tcf(c_9512,plain,
! [X0: $i] :
( s(s2,s1,truck2,p2_1,s2,s0)
| ~ link(X0,s0)
| ~ s(s2,s1,truck2,p2_1,s2,X0) ),
inference(instantiation,[status(thm)],[c_172]) ).
tcf(c_9513,plain,
( s(s2,s1,truck2,p2_1,s2,s0)
| ~ link(s2,s0)
| ~ s(s2,s1,truck2,p2_1,s2,s2) ),
inference(instantiation,[status(thm)],[c_9512]) ).
tcf(c_10165,plain,
s(s2,s1,truck2,p2_1,s2,s2),
inference(resolution,[status(thm)],[c_3257,c_449]) ).
tcf(c_10167,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_10165,c_9513,c_6214,c_2377,c_1566,c_247,c_256]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PLA031-1.001 : TPTP v9.3.1. Released v3.5.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.10/10.39 % Computer : n008.cluster.edu
% 0.10/10.39 % Model : x86_64 x86_64
% 0.10/10.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/10.39 % Memory : 8046.5625MB
% 0.10/10.39 % OS : Linux 6.8.0-71-generic
% 0.10/10.39 % CPULimit : 300
% 0.10/10.39 % WCLimit : 300
% 0.10/10.39 % DateTime : Thu Sep 24 06:15:36 UTC 2026
% 0.10/10.39 % CPUTime :
% 0.10/10.39 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.16/10.43 Running EPR theorem proving
% 0.16/10.43 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
% 0.16/10.44
% 0.16/10.44 % ======== iProver multi-core TPTP/SMT =========
% 0.16/10.44
% 0.16/10.45 % Detected problem language: tptp
% 0.16/10.46 % Proving...
% 2.17/11.16 % SZS status Started for theBenchmark.p
% 2.17/11.16 % SZS status Unsatisfiable for theBenchmark.p
% 2.17/11.16
% 2.17/11.16 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 2.17/11.16
% 2.17/11.16 % ------ iProver source info
% 2.17/11.16
% 2.17/11.16 % git: date: 2026-07-19 20:42:38 +0200
% 2.17/11.16 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 2.17/11.16 % git: non_committed_changes: false
% 2.17/11.16
% 2.17/11.16 % ------ Parsing...% successful
% 2.17/11.16
% 2.17/11.16
% 2.17/11.16 % ------ Clausification by vclausify_rel & Parsing by iProver...% ------ preprocesses with Option_epr_horn
% 2.17/11.16 %
% 2.17/11.16
% 2.17/11.16 % ------ Preprocessing... sf_s rm: 50 0s sf_e sf_s rm: 0 0s sf_e %
% 2.17/11.16
% 2.17/11.16 % ------ Preprocessing...% ------ preprocesses with Option_epr_horn
% 2.17/11.16 gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e
% 2.17/11.16 % ------ Proving...
% 2.17/11.16 % ------ Problem Properties
% 2.17/11.16
% 2.17/11.16 %
% 2.17/11.16 % clauses 56
% 2.17/11.16 % conjectures 1
% 2.17/11.16 % EPR 56
% 2.17/11.16 % Horn 56
% 2.17/11.16 % unary 34
% 2.17/11.16 % binary 12
% 2.17/11.16 % lits 88
% 2.17/11.16 % lits eq 0
% 2.17/11.16 % fd_pure 0
% 2.17/11.16 % fd_pseudo 0
% 2.17/11.16 % fd_cond 0
% 2.17/11.16 % fd_pseudo_cond 0
% 2.17/11.16 % AC symbols 0
% 2.17/11.16
% 2.17/11.16 % ------ Schedule EPR Horn non eq is on
% 2.17/11.16
% 2.17/11.16 % ------ no equalities: superposition off
% 2.17/11.16
% 2.17/11.16 % ------ Option_epr_horn Time Limit: Unbounded
% 2.17/11.16
% 2.17/11.16
% 2.17/11.16 % ------
% 2.17/11.16 % Current options:
% 2.17/11.16 % ------
% 2.17/11.16
% 2.17/11.16
% 2.17/11.16 %
% 2.17/11.16
% 2.17/11.16 % ------ Proving...
% 2.17/11.16 %
% 2.17/11.16
% 2.17/11.16 % SZS status Unsatisfiable for theBenchmark.p
% 2.17/11.16
% 2.17/11.16 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.17/11.16
% 2.17/11.16
%------------------------------------------------------------------------------