%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : ALG267^2 : TPTP v9.3.1. Bugfixed v5.2.0.
% 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 : n015.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 07:45:06 AM UTC 2026
% Result : Theorem 5.31s 2.60s
% Output : Refutation 5.66s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 4
% Syntax : Number of formulae : 9 ( 9 unt; 0 typ; 3 def)
% Number of atoms : 14 ( 8 equ; 0 cnn)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 35 ( 5 ~; 0 |; 0 &; 30 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 4 ( 2 avg)
% Number of types : 3 ( 2 usr)
% Number of type conns : 10 ( 10 >; 0 *; 0 +; 0 <<)
% Number of symbols : 9 ( 7 usr; 6 con; 0-2 aty)
% Number of variables : 8 ( 0 ^; 4 !; 3 ?; 8 :)
% ( 0 !>; 0 ?*; 0 @-; 1 @+)
% Comments :
%------------------------------------------------------------------------------
thf(term_type,type,
term: $tType ).
thf(subst_type,type,
subst: $tType ).
thf(one_decl,type,
one: term ).
thf(sub_decl,type,
sub: term > subst > term ).
thf(sh_decl,type,
sh: subst ).
thf(push_decl,type,
push: term > subst > subst ).
thf(hoasinduction_lem3b_lthm_decl,type,
hoasinduction_lem3b_lthm: $o ).
thf(hoasinduction_lem3b_decl,type,
hoasinduction_lem3b: $o ).
thf(sk1_decl,type,
sk1: term ).
thf(hoasinduction_lem3b_lthm_def,definition,
hoasinduction_lem3b_lthm = hoasinduction_lem3b ).
thf(hoasinduction_lem3b_def,definition,
( hoasinduction_lem3b
= ( ! [A: term] :
? [B: subst > term > term] :
( ( sub @ A @ ( push @ one @ sh ) )
= ( B @ sh @ one ) ) ) ) ).
thf(sk1_def,definition,
( sk1
= ( @+[A: term] :
~ ? [B: subst > term > term] :
( ( sub @ A @ ( push @ one @ sh ) )
= ( B @ sh @ one ) ) ) ) ).
thf(1,conjecture,
hoasinduction_lem3b_lthm,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',thm) ).
thf(2,negated_conjecture,
~ hoasinduction_lem3b_lthm,
inference(neg_conjecture,[status(cth)],[1]) ).
thf(3,plain,
~ ! [A: term] :
? [B: subst > term > term] :
( ( sub @ A @ ( push @ one @ sh ) )
= ( B @ sh @ one ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(4,plain,
! [A: subst > term > term] :
( ( sub @ sk1 @ ( push @ one @ sh ) )
!= ( A @ sh @ one ) ),
inference(cnf,[status(esa)],[3]) ).
thf(5,plain,
! [A: subst > term > term] :
( ( sub @ sk1 @ ( push @ one @ sh ) )
!= ( A @ sh @ one ) ),
inference(lifteq,[status(thm)],[4]) ).
thf(6,plain,
$false,
inference(pre_uni,[status(thm)],[5:[bind(A,$thf( ^ [B: subst] : ^ [C: term] : ( sub @ sk1 @ ( push @ one @ sh ) ) ))]]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : ALG267^2 : TPTP v9.3.1. Bugfixed v5.2.0.
% 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
% 0.11/0.21 % Computer : n015.cluster.edu
% 0.11/0.21 % Model : x86_64 x86_64
% 0.11/0.21 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.21 % Memory : 8046.5625MB
% 0.11/0.21 % OS : Linux 6.8.0-71-generic
% 0.11/0.22 % CPULimit : 300
% 0.11/0.22 % WCLimit : 300
% 0.11/0.22 % DateTime : Tue Sep 29 17:38:18 UTC 2026
% 0.11/0.22 % CPUTime :
% 0.11/0.22 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
% 0.98/0.80 % [INFO] Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ...
% 2.26/1.22 % [INFO] Parsing done (411ms).
% 2.26/1.24 % [INFO] Running in sequential loop mode.
% 3.21/1.63 % [INFO] eprover registered as external prover.
% 3.21/1.64 % [INFO] Scanning for conjecture ...
% 4.22/2.07 % [INFO] Found a conjecture (or negated_conjecture) and 0 axioms. Running axiom selection ...
% 4.22/2.09 % [INFO] Axiom selection finished. Selected 0 axioms (removed 0 axioms).
% 4.22/2.10 % [INFO] Problem is higher-order (TPTP THF).
% 4.22/2.10 % [INFO] Type checking passed.
% 4.22/2.10 % [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 ...
% 5.31/2.59 % [INFO] Killing All external provers ...
% 5.31/2.59 % Time passed: 2234ms (effective reasoning time: 1345ms)
% 5.31/2.59 % 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)>
% 5.31/2.60 % Axioms used in derivation (0):
% 5.31/2.60 % No. of inferences in proof: 6
% 5.31/2.60 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 2234 ms resp. 1345 ms w/o parsing
% 5.66/2.64 % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 5.66/2.64 % [INFO] Killing All external provers ...
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