%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : SEU484^1 : TPTP v9.3.1. Released v3.6.0.
% Transfm : none
% Format : tptp:raw
% Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% Computer : n004.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 : Wed Sep 30 08:28:16 AM UTC 2026
% Result : Theorem 3.76s 1.82s
% Output : Refutation 3.76s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 3
% Syntax : Number of formulae : 6 ( 3 unt; 0 typ; 2 def)
% Number of atoms : 9 ( 2 equ; 0 cnn)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 34 ( 7 ~; 0 |; 2 &; 18 @)
% ( 0 <=>; 7 =>; 0 <=; 0 <~>)
% Maximal formula depth : 14 ( 5 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 12 ( 12 >; 0 *; 0 +; 0 <<)
% Number of symbols : 4 ( 2 usr; 1 con; 0-2 aty)
% Number of variables : 15 ( 2 ^; 9 !; 4 ?; 15 :)
% Comments :
%------------------------------------------------------------------------------
thf(refl_decl,type,
refl: ( $i > $i > $o ) > $o ).
thf(term_decl,type,
term: ( $i > $i > $o ) > $o ).
thf(refl_def,definition,
( refl
= ( ^ [A: $i > $i > $o] :
! [B: $i] : ( A @ B @ B ) ) ) ).
thf(term_def,definition,
( term
= ( ^ [A: $i > $i > $o] :
! [B: $i > $o] :
( ? [C: $i] : ( B @ C )
=> ? [C: $i] :
( ( B @ C )
& ! [D: $i] :
( ( B @ D )
=> ~ ( A @ C @ D ) ) ) ) ) ) ).
thf(1,conjecture,
! [A: $i > $i > $o] :
( ( refl @ A )
=> ~ ( term @ A ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',reflexive_implies_non_terminating) ).
thf(2,negated_conjecture,
~ ! [A: $i > $i > $o] :
( ( refl @ A )
=> ~ ( term @ A ) ),
inference(neg_conjecture,[status(cth)],[1]) ).
thf(3,plain,
~ ! [A: $i > $i > $o] :
( ! [B: $i] : ( A @ B @ B )
=> ~ ! [B: $i > $o] :
( ? [C: $i] : ( B @ C )
=> ? [C: $i] :
( ( B @ C )
& ! [D: $i] :
( ( B @ D )
=> ~ ( A @ C @ D ) ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(53,plain,
$false,
inference(e,[status(thm)],[3]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SEU484^1 : TPTP v9.3.1. Released v3.6.0.
% 0.00/0.08 % Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.09/0.22 % Computer : n004.cluster.edu
% 0.09/0.22 % Model : x86_64 x86_64
% 0.09/0.22 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.22 % Memory : 8046.5625MB
% 0.09/0.22 % OS : Linux 6.8.0-71-generic
% 0.09/0.22 % CPULimit : 300
% 0.09/0.22 % WCLimit : 300
% 0.09/0.22 % DateTime : Tue Sep 29 13:43:21 UTC 2026
% 0.09/0.22 % CPUTime :
% 0.09/0.22 Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.63/0.53 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 1.03/0.66 % [INFO] Parsing done (133ms).
% 1.03/0.67 % [INFO] Running in sequential loop mode.
% 1.50/0.87 % [INFO] eprover registered as external prover.
% 1.50/0.87 % [INFO] Scanning for conjecture ...
% 1.77/1.03 % [INFO] Found a conjecture (or negated_conjecture) and 0 axioms. Running axiom selection ...
% 2.11/1.07 % [INFO] Axiom selection finished. Selected 0 axioms (removed 0 axioms).
% 2.11/1.07 % [INFO] Problem is higher-order (TPTP THF).
% 2.11/1.07 % [INFO] Type checking passed.
% 2.11/1.08 % [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 ...
% 3.76/1.82 % External prover 'e' found a proof!
% 3.76/1.82 % [INFO] Killing All external provers ...
% 3.76/1.82 % Time passed: 1504ms (effective reasoning time: 1150ms)
% 3.76/1.82 % Solved by 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)>
% 3.76/1.82 % Axioms used in derivation (0):
% 3.76/1.82 % No. of inferences in proof: 4
% 3.76/1.82 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1504 ms resp. 1150 ms w/o parsing
% 3.76/1.86 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 3.76/1.86 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------