%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : SYO459^4 : TPTP v9.3.1. Released v4.0.0.
% 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 : n006.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 08:45:53 AM UTC 2026
% Result : Theorem 3.94s 2.24s
% Output : Refutation 4.15s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SYO459^4 : TPTP v9.3.1. Released v4.0.0.
% 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
% 0.10/0.22 % Computer : n006.cluster.edu
% 0.10/0.22 % Model : x86_64 x86_64
% 0.10/0.22 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.22 % Memory : 8046.5625MB
% 0.10/0.22 % OS : Linux 6.8.0-71-generic
% 0.10/0.22 % CPULimit : 300
% 0.10/0.22 % WCLimit : 300
% 0.10/0.22 % DateTime : Tue Sep 29 16:57:54 UTC 2026
% 0.10/0.22 % CPUTime :
% 0.10/0.22 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
% 0.86/0.79 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 1.56/1.05 % [INFO] Parsing done (251ms).
% 1.56/1.06 % [INFO] Running in sequential loop mode.
% 2.16/1.46 % [INFO] eprover registered as external prover.
% 2.16/1.47 % [INFO] Scanning for conjecture ...
% 2.58/1.64 % [INFO] Found a conjecture (or negated_conjecture) and 2 axioms. Running axiom selection ...
% 2.58/1.67 % [INFO] Axiom selection finished. Selected 2 axioms (removed 0 axioms).
% 2.58/1.68 % [INFO] Problem is higher-order (TPTP THF).
% 2.58/1.68 % [INFO] Type checking passed.
% 2.58/1.68 % [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 ...
% 3.94/2.24 % External prover 'e' found a proof!
% 3.94/2.24 % [INFO] Killing All external provers ...
% 3.94/2.24 % Time passed: 1874ms (effective reasoning time: 1172ms)
% 3.94/2.24 % 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)>
% 3.94/2.24 % Axioms used in derivation (2): a1, a2
% 3.94/2.24 % No. of inferences in proof: 8
% 3.94/2.24 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1874 ms resp. 1172 ms w/o parsing
% 4.15/2.30 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% 4.15/2.30 thf(mu_type, type, mu: $tType).
% 4.15/2.30 thf(mnot_decl, type, mnot: (($i > $o) > ($i > $o))).
% 4.15/2.30 thf(mor_decl, type, mor: (($i > $o) > (($i > $o) > ($i > $o)))).
% 4.15/2.30 thf(mimplies_decl, type, mimplies: (($i > $o) > (($i > $o) > ($i > $o)))).
% 4.15/2.30 thf(mreflexive_decl, type, mreflexive: (($i > ($i > $o)) > $o)).
% 4.15/2.30 thf(msymmetric_decl, type, msymmetric: (($i > ($i > $o)) > $o)).
% 4.15/2.30 thf(mvalid_decl, type, mvalid: (($i > $o) > $o)).
% 4.15/2.30 thf(rel_b_decl, type, rel_b: ($i > ($i > $o))).
% 4.15/2.30 thf(mbox_b_decl, type, mbox_b: (($i > $o) > ($i > $o))).
% 4.15/2.30 thf(mdia_b_decl, type, mdia_b: (($i > $o) > ($i > $o))).
% 4.15/2.30 thf(p_decl, type, p: ($i > $o)).
% 4.15/2.30 thf(mnot_def, definition, mnot = (^ [A:($i > $o),B:$i]: ~ (A @ B)) ).
% 4.15/2.30 thf(mor_def, definition, mor = (^ [A:($i > $o),B:($i > $o),C:$i]: ((A @ C) | (B @ C))) ).
% 4.15/2.30 thf(mimplies_def, definition, mimplies = (^ [A:($i > $o)]: (mor @ (mnot @ A))) ).
% 4.15/2.30 thf(mreflexive_def, definition, mreflexive = (^ [A:($i > ($i > $o))]: ! [B:$i]: (A @ B @ B)) ).
% 4.15/2.30 thf(msymmetric_def, definition, msymmetric = (^ [A:($i > ($i > $o))]: ! [B:$i,C:$i]: ((A @ B @ C) => (A @ C @ B))) ).
% 4.15/2.30 thf(mvalid_def, definition, mvalid = ((!) @ $i) ).
% 4.15/2.30 thf(mbox_b_def, definition, mbox_b = (^ [A:($i > $o),B:$i]: ! [C:$i]: (~ (rel_b @ B @ C) | (A @ C))) ).
% 4.15/2.30 thf(mdia_b_def, definition, mdia_b = (^ [A:($i > $o)]: (mnot @ (mbox_b @ (mnot @ A)))) ).
% 4.15/2.30 thf(1,conjecture,((mvalid @ (mimplies @ (mdia_b @ (mbox_b @ p)) @ (mdia_b @ (mbox_b @ (mdia_b @ (mbox_b @ p))))))),file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove)).
% 4.15/2.30 thf(2,negated_conjecture,((~ (mvalid @ (mimplies @ (mdia_b @ (mbox_b @ p)) @ (mdia_b @ (mbox_b @ (mdia_b @ (mbox_b @ p)))))))),inference(neg_conjecture,[status(cth)],[1])).
% 4.15/2.30 thf(5,plain,((~ (! [A:$i]: (! [B:$i]: (~ (rel_b @ A @ B) | ~ (! [C:$i]: (~ (rel_b @ B @ C) | (p @ C)))) | ~ (! [B:$i]: (~ (rel_b @ A @ B) | ~ (! [C:$i]: (~ (rel_b @ B @ C) | ~ (! [D:$i]: (~ (rel_b @ C @ D) | ~ (! [E:$i]: (~ (rel_b @ D @ E) | (p @ E))))))))))))),inference(defexp_and_simp_and_etaexpand,[status(thm)],[2])).
% 4.15/2.30 thf(3,axiom,((mreflexive @ rel_b)),file('/export/starexec/sandbox/benchmark/theBenchmark.p',a1)).
% 4.15/2.30 thf(15,plain,((! [A:$i]: (rel_b @ A @ A))),inference(defexp_and_simp_and_etaexpand,[status(thm)],[3])).
% 4.15/2.30 thf(4,axiom,((msymmetric @ rel_b)),file('/export/starexec/sandbox/benchmark/theBenchmark.p',a2)).
% 4.15/2.30 thf(17,plain,((! [A:$i,B:$i]: ((rel_b @ A @ B) => (rel_b @ B @ A)))),inference(defexp_and_simp_and_etaexpand,[status(thm)],[4])).
% 4.15/2.30 thf(19,plain,(($false)),inference(e,[status(thm)],[5,15,17])).
% 4.15/2.30 % SZS output end Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% 4.15/2.30 % [INFO] Killing All external provers ...
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