%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : MSC002-2 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% Computer : n019.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 : Sun Sep 27 08:03:09 AM UTC 2026
% Result : Unsatisfiable 3.95s 2.64s
% Output : Refutation 3.95s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 10
% Syntax : Number of formulae : 21 ( 7 unt; 0 typ; 0 def)
% Number of atoms : 41 ( 0 equ; 0 cnn)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 160 ( 22 ~; 20 |; 0 &; 118 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 8 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 14 ( 13 usr; 5 con; 0-3 aty)
% Number of variables : 48 ( 0 ^; 48 !; 0 ?; 48 :)
% Comments :
%------------------------------------------------------------------------------
thf(answer_decl,type,
answer: $i > $o ).
thf(at_decl,type,
at: $i > $i > $i > $o ).
thf(something_decl,type,
something: $i ).
thf(here_decl,type,
here: $i ).
thf(now_decl,type,
now: $i ).
thf(held_decl,type,
held: $i > $i > $o ).
thf(let_go_decl,type,
let_go: $i > $i ).
thf(red_decl,type,
red: $i > $o ).
thf(pick_up_decl,type,
pick_up: $i > $i ).
thf(grabbed_decl,type,
grabbed: $i > $i > $o ).
thf(go_decl,type,
go: $i > $i > $i ).
thf(put_decl,type,
put: $i > $i > $i > $o ).
thf(there_decl,type,
there: $i ).
thf(8,axiom,
! [B: $i,A: $i] :
( ( B @ answer )
| ~ ( B @ ( there @ ( A @ put ) ) )
| ~ ( A @ red ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',answer_if_red_and_put_there) ).
thf(24,plain,
! [B: $i,A: $i] :
( ( B @ answer )
| ~ ( B @ ( there @ ( A @ put ) ) )
| ~ ( A @ red ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).
thf(3,axiom,
! [B: $i,A: $i] :
~ ( B @ let_go @ ( A @ held ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cant_hold_and_let_go) ).
thf(14,plain,
! [B: $i,A: $i] :
~ ( B @ let_go @ ( A @ held ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).
thf(6,axiom,
! [C: $i,B: $i,A: $i] :
( ( C @ pick_up @ ( B @ ( A @ at ) ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',situation_pick_up) ).
thf(20,plain,
! [C: $i,B: $i,A: $i] :
( ( C @ pick_up @ ( B @ ( A @ at ) ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).
thf(10,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( B @ ( D @ go ) @ ( C @ ( A @ at ) ) )
| ~ ( B @ ( C @ ( A @ at ) ) )
| ( B @ ( A @ held ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',thing_either_held_or_went_there) ).
thf(28,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( B @ ( D @ go ) @ ( C @ ( A @ at ) ) )
| ~ ( B @ ( C @ ( A @ at ) ) )
| ( B @ ( A @ held ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).
thf(2,axiom,
now @ ( here @ ( something @ at ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',something_is_here_now) ).
thf(13,plain,
now @ ( here @ ( something @ at ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(7,axiom,
! [C: $i,B: $i,A: $i] :
( ( C @ let_go @ ( B @ go ) @ pick_up @ ( A @ grabbed ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',can_grab_if_previously_let_go) ).
thf(22,plain,
! [C: $i,B: $i,A: $i] :
( ( C @ let_go @ ( B @ go ) @ pick_up @ ( A @ grabbed ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).
thf(5,axiom,
! [C: $i,B: $i,A: $i] :
( ( C @ let_go @ ( B @ ( A @ at ) ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',situation_let_go) ).
thf(18,plain,
! [C: $i,B: $i,A: $i] :
( ( C @ let_go @ ( B @ ( A @ at ) ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).
thf(4,axiom,
! [B: $i,A: $i] :
( ( A @ red )
| ~ ( B @ ( here @ ( A @ at ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',everything_is_red) ).
thf(16,plain,
! [B: $i,A: $i] :
( ( A @ red )
| ~ ( B @ ( here @ ( A @ at ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).
thf(1,negated_conjecture,
! [A: $i] :
~ ( A @ answer ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_there_is_an_answer_situation) ).
thf(11,plain,
! [A: $i] :
~ ( A @ answer ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).
thf(9,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( C @ ( D @ go ) @ ( D @ ( A @ put ) ) )
| ~ ( C @ ( A @ grabbed ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',can_put_somewhere_if_grab_and_go_there) ).
thf(26,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( C @ ( D @ go ) @ ( D @ ( A @ put ) ) )
| ~ ( C @ ( A @ grabbed ) )
| ~ ( C @ ( B @ ( A @ at ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).
thf(30,plain,
$false,
inference(e,[status(thm)],[24,14,20,28,13,22,18,16,11,26]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : MSC002-2 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.14 % Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.22/0.50 % Computer : n019.cluster.edu
% 0.22/0.50 % Model : x86_64 x86_64
% 0.22/0.50 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.22/0.50 % Memory : 8046.5625MB
% 0.22/0.50 % OS : Linux 6.8.0-71-generic
% 0.22/0.50 % CPULimit : 300
% 0.22/0.50 % WCLimit : 300
% 0.22/0.50 % DateTime : Sat Sep 26 00:14:50 UTC 2026
% 0.22/0.50 % CPUTime :
% 0.22/0.50 Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 1.30/1.27 % [INFO] Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ...
% 1.85/1.54 % [INFO] Parsing done (265ms).
% 1.85/1.56 % [INFO] Running in sequential loop mode.
% 2.45/1.96 % [INFO] eprover registered as external prover.
% 2.45/1.97 % [INFO] Scanning for conjecture ...
% 2.70/2.05 % [INFO] Found a conjecture (or negated_conjecture) and 9 axioms. Running axiom selection ...
% 2.70/2.08 % [INFO] Axiom selection finished. Selected 9 axioms (removed 0 axioms).
% 2.70/2.11 % [INFO] Problem is propositional (TPTP CNF).
% 2.70/2.11 % [INFO] Type checking passed.
% 2.70/2.12 % [CONFIG] Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>. Searching for refutation ...
% 3.95/2.63 % External prover 'e' found a proof!
% 3.95/2.63 % [INFO] Killing All external provers ...
% 3.95/2.64 % Time passed: 1917ms (effective reasoning time: 1071ms)
% 3.95/2.64 % Axioms used in derivation (9): situation_let_go, something_is_here_now, answer_if_red_and_put_there, can_grab_if_previously_let_go, cant_hold_and_let_go, can_put_somewhere_if_grab_and_go_there, thing_either_held_or_went_there, everything_is_red, situation_pick_up
% 3.95/2.64 % No. of inferences in proof: 21
% 3.95/2.64 % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p : 1917 ms resp. 1071 ms w/o parsing
% 3.95/2.68 % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 3.95/2.68 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------