TSTP Solution File: SEU523^2 by Leo-III---1.7.12

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%------------------------------------------------------------------------------
% File     : Leo-III---1.7.12
% Problem  : SEU523^2 : TPTP v8.2.0. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n024.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue May 21 03:37:59 EDT 2024

% Result   : Theorem 2.55s 1.62s
% Output   : Refutation 2.83s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :    5
% Syntax   : Number of formulae    :    8 (   2 unt;   3 typ;   1 def)
%            Number of atoms       :   22 (   3 equ;   0 cnn)
%            Maximal formula atoms :    4 (   4 avg)
%            Number of connectives :   54 (   2   ~;   0   |;   2   &;  35   @)
%                                         (   0 <=>;  15  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   8 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    3 (   3   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    5 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   18 (   0   ^  16   !;   2   ?;  18   :)

% Comments : 
%------------------------------------------------------------------------------
thf(in_type,type,
    in: $i > $i > $o ).

thf(setunion_type,type,
    setunion: $i > $i ).

thf(setunionAx_type,type,
    setunionAx: $o ).

thf(setunionAx_def,definition,
    ( setunionAx
    = ( ! [A: $i,B: $i] :
          ( ( in @ B @ ( setunion @ A ) )
          = ( ? [C: $i] :
                ( ( in @ B @ C )
                & ( in @ C @ A ) ) ) ) ) ) ).

thf(1,conjecture,
    ( setunionAx
   => ! [A: $i,B: $i] :
        ( ( in @ B @ ( setunion @ A ) )
       => ! [C: $o] :
            ( ! [D: $i] :
                ( ( in @ B @ D )
               => ( ( in @ D @ A )
                 => C ) )
           => C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',setunionE) ).

thf(2,negated_conjecture,
    ~ ( setunionAx
     => ! [A: $i,B: $i] :
          ( ( in @ B @ ( setunion @ A ) )
         => ! [C: $o] :
              ( ! [D: $i] :
                  ( ( in @ B @ D )
                 => ( ( in @ D @ A )
                   => C ) )
             => C ) ) ),
    inference(neg_conjecture,[status(cth)],[1]) ).

thf(3,plain,
    ~ ( ! [A: $i,B: $i] :
          ( ( in @ B @ ( setunion @ A ) )
          = ( ? [C: $i] :
                ( ( in @ B @ C )
                & ( in @ C @ A ) ) ) )
     => ! [A: $i,B: $i] :
          ( ( in @ B @ ( setunion @ A ) )
         => ! [C: $o] :
              ( ! [D: $i] :
                  ( ( in @ B @ D )
                 => ( ( in @ D @ A )
                   => C ) )
             => C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(10,plain,
    $false,
    inference(e,[status(thm)],[3]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : SEU523^2 : TPTP v8.2.0. Released v3.7.0.
% 0.12/0.16  % Command  : run_Leo-III %s %d
% 0.15/0.37  % Computer : n024.cluster.edu
% 0.15/0.37  % Model    : x86_64 x86_64
% 0.15/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.37  % Memory   : 8042.1875MB
% 0.15/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.37  % CPULimit : 300
% 0.15/0.37  % WCLimit  : 300
% 0.15/0.37  % DateTime : Sun May 19 17:24:39 EDT 2024
% 0.15/0.37  % CPUTime  : 
% 0.83/0.84  % [INFO] 	 Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ... 
% 1.23/0.97  % [INFO] 	 Parsing done (129ms). 
% 1.23/0.98  % [INFO] 	 Running in sequential loop mode. 
% 1.64/1.20  % [INFO] 	 eprover registered as external prover. 
% 1.64/1.20  % [INFO] 	 cvc4 registered as external prover. 
% 1.74/1.21  % [INFO] 	 Scanning for conjecture ... 
% 1.80/1.27  % [INFO] 	 Found a conjecture (or negated_conjecture) and 0 axioms. Running axiom selection ... 
% 1.80/1.29  % [INFO] 	 Axiom selection finished. Selected 0 axioms (removed 0 axioms). 
% 1.80/1.29  % [INFO] 	 Problem is higher-order (TPTP THF). 
% 1.80/1.29  % [INFO] 	 Type checking passed. 
% 1.80/1.30  % [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 ... 
% 2.55/1.61  % External prover 'e' found a proof!
% 2.55/1.61  % [INFO] 	 Killing All external provers ... 
% 2.55/1.61  % Time passed: 1083ms (effective reasoning time: 629ms)
% 2.55/1.61  % 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)>
% 2.55/1.61  % Axioms used in derivation (0): 
% 2.55/1.61  % No. of inferences in proof: 4
% 2.55/1.62  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : 1083 ms resp. 629 ms w/o parsing
% 2.83/1.68  % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 2.83/1.68  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------