%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PLA003-1 : 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 : n002.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 1.66s 1.26s
% Output : CNFRefutation 1.66s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 8
% Syntax : Number of formulae : 31 ( 8 unt; 0 def)
% Number of atoms : 54 ( 0 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 51 ( 28 ~; 23 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 5 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 : 2 ( 1 usr; 1 prp; 0-3 aty)
% Number of functors : 11 ( 11 usr; 8 con; 0-3 aty)
% Number of variables : 62 ( 0 sgn 62 !; 0 ?; 39 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( ~ can(monkey(X0,floor,nothing),ladder(X0,floor),X1)
| can(monkey(X0,ceiling,nothing),ladder(X0,floor),X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',climb_up) ).
fof(f3,axiom,
! [X2,X0,X1] :
( ~ can(monkey(X2,floor,the_ladder),ladder(X2,floor),X1)
| can(monkey(X0,floor,the_ladder),ladder(X0,floor),X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',go_holding_ladder) ).
fof(f5,axiom,
! [X2,X3,X0,X1] :
( ~ can(monkey(X3,floor,nothing),X1,X2)
| can(monkey(X0,floor,nothing),X1,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',go_holding_nothing) ).
fof(f6,axiom,
! [X2,X3,X0,X1] :
( ~ can(monkey(X0,X1,the_ladder),ladder(X0,X3),X2)
| can(monkey(X0,X1,nothing),ladder(X0,floor),X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',drop_ladder) ).
fof(f8,axiom,
! [X2,X0,X1] :
( ~ can(monkey(X0,X1,nothing),X2,bananas(X0,X1))
| can(monkey(X0,X1,the_bananas),X2,bananas(X0,X1)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',grab_bananas) ).
fof(f9,axiom,
! [X2,X0,X1] :
( ~ can(monkey(X0,X1,nothing),ladder(X0,X1),X2)
| can(monkey(X0,X1,the_ladder),ladder(X0,X1),X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',grab_ladder) ).
fof(f10,axiom,
can(monkey(l0,floor,nothing),ladder(l1,floor),bananas(l2,ceiling)),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',initial_situation) ).
fof(f11,negated_conjecture,
! [X2,X3,X0,X1] : ~ can(monkey(X0,X1,the_bananas),X2,X3),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_the_monkey_can_get_the_bananas) ).
tcf(c_60,plain,
! [X0: $i,X1: $i] :
( can(monkey(X0,ceiling,nothing),ladder(X0,floor),X1)
| ~ can(monkey(X0,floor,nothing),ladder(X0,floor),X1) ),
inference(cnf_transformation,[],[f1]) ).
tcf(c_62,plain,
! [X0: $i,X1: $i,X2: $i] :
( can(monkey(X2,floor,the_ladder),ladder(X2,floor),X1)
| ~ can(monkey(X0,floor,the_ladder),ladder(X0,floor),X1) ),
inference(cnf_transformation,[],[f3]) ).
tcf(c_64,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( can(monkey(X3,floor,nothing),X1,X2)
| ~ can(monkey(X0,floor,nothing),X1,X2) ),
inference(cnf_transformation,[],[f5]) ).
tcf(c_65,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( can(monkey(X0,X1,nothing),ladder(X0,floor),X3)
| ~ can(monkey(X0,X1,the_ladder),ladder(X0,X2),X3) ),
inference(cnf_transformation,[],[f6]) ).
tcf(c_67,plain,
! [X0: $i,X1: $i,X2: $i] :
( can(monkey(X0,X1,the_bananas),X2,bananas(X0,X1))
| ~ can(monkey(X0,X1,nothing),X2,bananas(X0,X1)) ),
inference(cnf_transformation,[],[f8]) ).
tcf(c_68,plain,
! [X0: $i,X1: $i,X2: $i] :
( can(monkey(X0,X1,the_ladder),ladder(X0,X1),X2)
| ~ can(monkey(X0,X1,nothing),ladder(X0,X1),X2) ),
inference(cnf_transformation,[],[f9]) ).
tcf(c_69,plain,
can(monkey(l0,floor,nothing),ladder(l1,floor),bananas(l2,ceiling)),
inference(cnf_transformation,[],[f10]) ).
tcf(c_70,negated_conjecture,
! [X0: $i,X1: $i,X2: $i,X3: $i] : ~ can(monkey(X0,X1,the_bananas),X2,X3),
inference(cnf_transformation,[],[f11]) ).
tcf(c_92,plain,
! [X0: $i,X1: $i,X2: $i] :
( ~ can(monkey(X0,X1,nothing),X2,bananas(X0,X1))
| can(monkey(X0,X1,the_bananas),X2,bananas(X0,X1)) ),
inference(prop_impl_just,[status(thm)],[c_67]) ).
tcf(c_93,plain,
! [X0: $i,X1: $i,X2: $i] :
( can(monkey(X0,X1,the_bananas),X2,bananas(X0,X1))
| ~ can(monkey(X0,X1,nothing),X2,bananas(X0,X1)) ),
inference(renaming,[status(thm)],[c_92]) ).
tcf(c_134,plain,
! [X0: $i,X1: $i,X2: $i] : ~ can(monkey(X0,X1,nothing),X2,bananas(X0,X1)),
inference(backward_subsumption_resolution,[status(thm)],[c_93,c_70]) ).
tcf(c_228,plain,
! [X0: $i,X1: $i,X2: $i] : ~ can(monkey(X0,X1,nothing),X2,bananas(X0,X1)),
inference(demodulation,[status(thm)],[c_134]) ).
tcf(c_229,plain,
! [X0: $i] :
( can(monkey(X0,floor,nothing),ladder(l1,floor),bananas(l2,ceiling))
| ~ can(monkey(l0,floor,nothing),ladder(l1,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_64]) ).
tcf(c_231,plain,
( can(monkey(l1,floor,nothing),ladder(l1,floor),bananas(l2,ceiling))
| ~ can(monkey(l0,floor,nothing),ladder(l1,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_229]) ).
tcf(c_237,plain,
( can(monkey(l1,floor,the_ladder),ladder(l1,floor),bananas(l2,ceiling))
| ~ can(monkey(l1,floor,nothing),ladder(l1,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_68]) ).
tcf(c_244,plain,
! [X0: $i] :
( can(monkey(X0,floor,the_ladder),ladder(X0,floor),bananas(l2,ceiling))
| ~ can(monkey(l1,floor,the_ladder),ladder(l1,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_62]) ).
tcf(c_254,plain,
! [X0: $i] :
( can(monkey(X0,floor,nothing),ladder(X0,floor),bananas(l2,ceiling))
| ~ can(monkey(X0,floor,the_ladder),ladder(X0,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_65]) ).
tcf(c_258,plain,
! [X0: $i] :
( can(monkey(X0,ceiling,nothing),ladder(X0,floor),bananas(l2,ceiling))
| ~ can(monkey(X0,floor,nothing),ladder(X0,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_60]) ).
tcf(c_265,plain,
( can(monkey(l2,ceiling,nothing),ladder(l2,floor),bananas(l2,ceiling))
| ~ can(monkey(l2,floor,nothing),ladder(l2,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_258]) ).
tcf(c_266,plain,
~ can(monkey(l2,ceiling,nothing),ladder(l2,floor),bananas(l2,ceiling)),
inference(instantiation,[status(thm)],[c_228]) ).
tcf(c_275,plain,
( can(monkey(l2,floor,nothing),ladder(l2,floor),bananas(l2,ceiling))
| ~ can(monkey(l2,floor,the_ladder),ladder(l2,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_254]) ).
tcf(c_287,plain,
( can(monkey(l2,floor,the_ladder),ladder(l2,floor),bananas(l2,ceiling))
| ~ can(monkey(l1,floor,the_ladder),ladder(l1,floor),bananas(l2,ceiling)) ),
inference(instantiation,[status(thm)],[c_244]) ).
tcf(c_288,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_287,c_275,c_266,c_265,c_237,c_231,c_69]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PLA003-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.08/0.35 % Computer : n002.cluster.edu
% 0.08/0.35 % Model : x86_64 x86_64
% 0.08/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35 % Memory : 8046.5625MB
% 0.08/0.35 % OS : Linux 6.8.0-71-generic
% 0.08/0.35 % CPULimit : 300
% 0.08/0.35 % WCLimit : 300
% 0.08/0.35 % DateTime : Thu Sep 24 06:10:20 UTC 2026
% 0.08/0.35 % CPUTime :
% 0.08/0.35 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.12/0.38 Running first-order theorem proving
% 0.12/0.38 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.12/0.40
% 0.12/0.40 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.40
% 0.12/0.40 % Detected problem language: tptp
% 0.12/0.41 % Proving...
% 1.66/1.26 % SZS status Started for theBenchmark.p
% 1.66/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 1.66/1.26
% 1.66/1.26 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.66/1.26
% 1.66/1.26 % ------ iProver source info
% 1.66/1.26
% 1.66/1.26 % git: date: 2026-07-19 20:42:38 +0200
% 1.66/1.26 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.66/1.26 % git: non_committed_changes: false
% 1.66/1.26
% 1.66/1.26 % ------ Parsing...% successful
% 1.66/1.26
% 1.66/1.26
% 1.66/1.26 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.66/1.26
% 1.66/1.26 % ------ Preprocessing... sf_s rm: 1 0s sf_e pe_s pe_e sf_s rm: 0 0s sf_e pe_s pe_e %
% 1.66/1.26
% 1.66/1.26 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e
% 1.66/1.26 % ------ Proving...
% 1.66/1.26 % ------ Problem Properties
% 1.66/1.26
% 1.66/1.26 %
% 1.66/1.26 % clauses 8
% 1.66/1.26 % conjectures 0
% 1.66/1.26 % EPR 0
% 1.66/1.26 % Horn 8
% 1.66/1.26 % unary 2
% 1.66/1.26 % binary 6
% 1.66/1.26 % lits 14
% 1.66/1.26 % lits eq 0
% 1.66/1.26 % fd_pure 0
% 1.66/1.26 % fd_pseudo 0
% 1.66/1.26 % fd_cond 0
% 1.66/1.26 % fd_pseudo_cond 0
% 1.66/1.26 % AC symbols 0
% 1.66/1.26
% 1.66/1.26 % ------ Schedule dynamic 5 is on
% 1.66/1.26
% 1.66/1.26 % ------ no conjectures: strip conj schedule
% 1.66/1.26
% 1.66/1.26 % ------ no equalities: superposition off
% 1.66/1.26
% 1.66/1.26 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" stripped conjectures Time Limit: 10.
% 1.66/1.26
% 1.66/1.26
% 1.66/1.26 % ------
% 1.66/1.26 % Current options:
% 1.66/1.26 % ------
% 1.66/1.26
% 1.66/1.26
% 1.66/1.26 %
% 1.66/1.26
% 1.66/1.26 % ------ Proving...
% 1.66/1.26 %
% 1.66/1.26
% 1.66/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 1.66/1.26
% 1.66/1.26 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.66/1.26
% 1.66/1.26
%------------------------------------------------------------------------------