%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : SEU549^2 : TPTP v9.3.1. Released v3.7.0.
% 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 : n012.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 08:28:30 AM UTC 2026
% Result : Theorem 1.39s 1.01s
% Output : Refutation 1.73s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 2
% Syntax : Number of formulae : 5 ( 2 unt; 0 typ; 1 def)
% Number of atoms : 10 ( 6 equ; 0 cnn)
% Maximal formula atoms : 2 ( 2 avg)
% Number of connectives : 27 ( 2 ~; 0 |; 2 &; 12 @)
% ( 0 <=>; 11 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 6 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 4 ( 4 >; 0 *; 0 +; 0 <<)
% Number of symbols : 3 ( 1 usr; 1 con; 0-2 aty)
% Number of variables : 14 ( 1 ^; 11 !; 2 ?; 14 :)
% Comments :
%------------------------------------------------------------------------------
thf(exu_decl,type,
exu: ( $i > $o ) > $o ).
thf(exu_def,definition,
( exu
= ( ^ [A: $i > $o] :
? [B: $i] :
( ( A @ B )
& ! [C: $i] :
( ( A @ C )
=> ( B = C ) ) ) ) ) ).
thf(1,conjecture,
! [A: $i > $o] :
( ( exu @ A )
=> ! [B: $i,C: $i] :
( ( A @ B )
=> ( ( A @ C )
=> ( B = C ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',exuE3u) ).
thf(2,negated_conjecture,
~ ! [A: $i > $o] :
( ( exu @ A )
=> ! [B: $i,C: $i] :
( ( A @ B )
=> ( ( A @ C )
=> ( B = C ) ) ) ),
inference(neg_conjecture,[status(cth)],[1]) ).
thf(3,plain,
~ ! [A: $i > $o] :
( ? [B: $i] :
( ( A @ B )
& ! [C: $i] :
( ( A @ C )
=> ( B = C ) ) )
=> ! [B: $i,C: $i] :
( ( A @ B )
=> ( ( A @ C )
=> ( B = C ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(13,plain,
$false,
inference(e,[status(thm)],[3]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.01 % Problem : SEU549^2 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.04 % 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
% 0.08/0.12 % Computer : n012.cluster.edu
% 0.08/0.12 % Model : x86_64 x86_64
% 0.08/0.12 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.12 % Memory : 8046.5625MB
% 0.08/0.12 % OS : Linux 6.8.0-71-generic
% 0.08/0.12 % CPULimit : 300
% 0.08/0.12 % WCLimit : 300
% 0.08/0.12 % DateTime : Tue Sep 29 13:49:18 UTC 2026
% 0.08/0.12 % CPUTime :
% 0.08/0.12 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
% 0.42/0.41 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 0.57/0.50 % [INFO] Parsing done (90ms).
% 0.57/0.50 % [INFO] Running in sequential loop mode.
% 1.01/0.70 % [INFO] eprover registered as external prover.
% 1.01/0.70 % [INFO] Scanning for conjecture ...
% 1.01/0.75 % [INFO] Found a conjecture (or negated_conjecture) and 0 axioms. Running axiom selection ...
% 1.01/0.77 % [INFO] Axiom selection finished. Selected 0 axioms (removed 0 axioms).
% 1.01/0.77 % [INFO] Problem is higher-order (TPTP THF).
% 1.01/0.77 % [INFO] Type checking passed.
% 1.01/0.77 % [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 ...
% 1.39/1.01 % External prover 'e' found a proof!
% 1.39/1.01 % [INFO] Killing All external provers ...
% 1.39/1.01 % Time passed: 811ms (effective reasoning time: 498ms)
% 1.39/1.01 % 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)>
% 1.39/1.01 % Axioms used in derivation (0):
% 1.39/1.01 % No. of inferences in proof: 4
% 1.39/1.01 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 811 ms resp. 498 ms w/o parsing
% 1.73/1.03 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 1.73/1.03 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------