%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : PUZ083^1 : 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 : n011.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 08:20:45 AM UTC 2026
% Result : Theorem 3.29s 2.03s
% Output : Refutation 3.29s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 2
% Syntax : Number of formulae : 6 ( 4 unt; 0 typ; 0 def)
% Number of atoms : 8 ( 0 equ; 0 cnn)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 26 ( 7 ~; 0 |; 0 &; 14 @)
% ( 0 <=>; 5 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 6 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 3 ( 2 usr; 2 con; 0-2 aty)
% Number of variables : 5 ( 0 ^; 5 !; 0 ?; 5 :)
% Comments :
%------------------------------------------------------------------------------
thf(peter_decl,type,
peter: $i ).
thf(says_decl,type,
says: $i > $o > $o ).
thf(1,conjecture,
~ ! [A: $o] :
( ( says @ peter @ A )
=> A ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',thm) ).
thf(2,negated_conjecture,
~ ~ ! [A: $o] :
( ( says @ peter @ A )
=> A ),
inference(neg_conjecture,[status(cth)],[1]) ).
thf(4,plain,
~ ~ ! [A: $o] :
( ( says @ peter @ A )
=> A ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(3,axiom,
( says @ peter
@ ! [A: $o] :
( ( says @ peter @ A )
=> ~ A ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax1) ).
thf(10,plain,
( says @ peter
@ ! [A: $o] :
( ( says @ peter @ A )
=> ~ A ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).
thf(11,plain,
$false,
inference(e,[status(thm)],[4,10]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ083^1 : TPTP v9.3.1. Released v3.6.0.
% 0.00/0.07 % 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
% 0.08/0.21 % Computer : n011.cluster.edu
% 0.08/0.21 % Model : x86_64 x86_64
% 0.08/0.21 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.21 % Memory : 8046.5625MB
% 0.08/0.21 % OS : Linux 6.8.0-71-generic
% 0.08/0.21 % CPULimit : 300
% 0.08/0.21 % WCLimit : 300
% 0.08/0.21 % DateTime : Tue Sep 29 13:22:01 UTC 2026
% 0.08/0.21 % CPUTime :
% 0.08/0.21 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
% 0.85/0.79 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 1.17/0.98 % [INFO] Parsing done (179ms).
% 1.17/0.99 % [INFO] Running in sequential loop mode.
% 1.75/1.38 % [INFO] eprover registered as external prover.
% 1.75/1.39 % [INFO] Scanning for conjecture ...
% 1.95/1.46 % [INFO] Found a conjecture (or negated_conjecture) and 1 axioms. Running axiom selection ...
% 2.09/1.50 % [INFO] Axiom selection finished. Selected 1 axioms (removed 0 axioms).
% 2.09/1.50 % [INFO] Problem is higher-order (TPTP THF).
% 2.09/1.51 % [INFO] Type checking passed.
% 2.09/1.52 % [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 ...
% 3.29/2.03 % External prover 'e' found a proof!
% 3.29/2.03 % [INFO] Killing All external provers ...
% 3.29/2.03 % Time passed: 1681ms (effective reasoning time: 1035ms)
% 3.29/2.03 % 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)>
% 3.29/2.03 % Axioms used in derivation (1): ax1
% 3.29/2.03 % No. of inferences in proof: 6
% 3.29/2.03 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1681 ms resp. 1035 ms w/o parsing
% 3.29/2.06 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 3.29/2.06 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------