%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : GEO229+1 : TPTP v9.3.1. Bugfixed v6.4.0.
% 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 : 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 : Sun Sep 27 07:12:55 AM UTC 2026
% Result : Theorem 3.49s 2.35s
% Output : Refutation 3.49s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 1
% Syntax : Number of formulae : 4 ( 2 unt; 0 typ; 0 def)
% Number of atoms : 6 ( 0 equ; 0 cnn)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 20 ( 6 ~; 0 |; 0 &; 12 @)
% ( 0 <=>; 2 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 5 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 4 ( 2 usr; 2 con; 0-2 aty)
% Number of variables : 4 ( 0 ^; 4 !; 0 ?; 4 :)
% Comments :
%------------------------------------------------------------------------------
thf(unequally_directed_lines_decl,type,
unequally_directed_lines: $i > $i > $o ).
thf(reverse_line_decl,type,
reverse_line: $i > $i ).
thf(1,conjecture,
! [A: $i,B: $i] :
( ~ ( B @ reverse_line @ ( A @ unequally_directed_lines ) )
=> ~ ( B @ reverse_line @ ( A @ unequally_directed_lines ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',con) ).
thf(2,negated_conjecture,
~ ! [A: $i,B: $i] :
( ~ ( B @ reverse_line @ ( A @ unequally_directed_lines ) )
=> ~ ( B @ reverse_line @ ( A @ unequally_directed_lines ) ) ),
inference(neg_conjecture,[status(cth)],[1]) ).
thf(34,plain,
~ $true,
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(35,plain,
$false,
inference(simp,[status(thm)],[34]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GEO229+1 : TPTP v9.3.1. Bugfixed v6.4.0.
% 0.00/0.07 % 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
% 0.12/0.39 % Computer : n011.cluster.edu
% 0.12/0.39 % Model : x86_64 x86_64
% 0.12/0.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.39 % Memory : 8046.5625MB
% 0.12/0.39 % OS : Linux 6.8.0-71-generic
% 0.12/0.39 % CPULimit : 300
% 0.12/0.39 % WCLimit : 300
% 0.12/0.40 % DateTime : Fri Sep 25 13:08:28 UTC 2026
% 0.12/0.40 % CPUTime :
% 0.12/0.40 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
% 0.83/0.99 % [INFO] Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ...
% 1.18/1.19 % [INFO] Parsing done (205ms).
% 1.39/1.21 % [INFO] Running in sequential loop mode.
% 2.05/1.60 % [INFO] eprover registered as external prover.
% 2.05/1.61 % [INFO] Scanning for conjecture ...
% 2.20/1.71 % [INFO] Found a conjecture (or negated_conjecture) and 31 axioms. Running axiom selection ...
% 2.20/1.78 % [INFO] Axiom selection finished. Selected 31 axioms (removed 0 axioms).
% 2.37/1.85 % [INFO] Problem is first-order (TPTP FOF).
% 2.37/1.86 % [INFO] Type checking passed.
% 2.37/1.86 % [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 ...
% 3.49/2.35 % [INFO] Killing All external provers ...
% 3.49/2.35 % Time passed: 1789ms (effective reasoning time: 1135ms)
% 3.49/2.35 % 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)>
% 3.49/2.35 % Axioms used in derivation (0):
% 3.49/2.35 % No. of inferences in proof: 4
% 3.49/2.35 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 1789 ms resp. 1135 ms w/o parsing
% 3.49/2.39 % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 3.49/2.39 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------