TSTP Solution File: SET073+1 by SnakeForV---1.0

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%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : SET073+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s

% Computer : n012.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 : Wed Aug 31 18:18:56 EDT 2022

% Result   : Theorem 0.19s 0.49s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    4
% Syntax   : Number of formulae    :   20 (   6 unt;   0 def)
%            Number of atoms       :   59 (  25 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :   61 (  22   ~;  18   |;  16   &)
%                                         (   2 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   5 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   4 con; 0-2 aty)
%            Number of variables   :   32 (  26   !;   6   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f145,plain,
    $false,
    inference(subsumption_resolution,[],[f144,f103]) ).

fof(f103,plain,
    member(sK2,universal_class),
    inference(cnf_transformation,[],[f75]) ).

fof(f75,plain,
    ( member(sK2,universal_class)
    & null_class = unordered_pair(sK2,sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1,sK2])],[f73,f74]) ).

fof(f74,plain,
    ( ? [X0,X1] :
        ( member(X1,universal_class)
        & null_class = unordered_pair(X1,X0) )
   => ( member(sK2,universal_class)
      & null_class = unordered_pair(sK2,sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f73,plain,
    ? [X0,X1] :
      ( member(X1,universal_class)
      & null_class = unordered_pair(X1,X0) ),
    inference(rectify,[],[f55]) ).

fof(f55,plain,
    ? [X1,X0] :
      ( member(X0,universal_class)
      & unordered_pair(X0,X1) = null_class ),
    inference(ennf_transformation,[],[f45]) ).

fof(f45,negated_conjecture,
    ~ ! [X1,X0] :
        ( member(X0,universal_class)
       => unordered_pair(X0,X1) != null_class ),
    inference(negated_conjecture,[],[f44]) ).

fof(f44,conjecture,
    ! [X1,X0] :
      ( member(X0,universal_class)
     => unordered_pair(X0,X1) != null_class ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',corollary1_1) ).

fof(f144,plain,
    ~ member(sK2,universal_class),
    inference(subsumption_resolution,[],[f143,f85]) ).

fof(f85,plain,
    ! [X0] : ~ member(X0,null_class),
    inference(cnf_transformation,[],[f16]) ).

fof(f16,axiom,
    ! [X0] : ~ member(X0,null_class),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_defn) ).

fof(f143,plain,
    ( member(sK2,null_class)
    | ~ member(sK2,universal_class) ),
    inference(superposition,[],[f124,f102]) ).

fof(f102,plain,
    null_class = unordered_pair(sK2,sK1),
    inference(cnf_transformation,[],[f75]) ).

fof(f124,plain,
    ! [X2,X1] :
      ( member(X2,unordered_pair(X2,X1))
      | ~ member(X2,universal_class) ),
    inference(equality_resolution,[],[f98]) ).

fof(f98,plain,
    ! [X2,X0,X1] :
      ( member(X0,unordered_pair(X2,X1))
      | ~ member(X0,universal_class)
      | X0 != X2 ),
    inference(cnf_transformation,[],[f72]) ).

fof(f72,plain,
    ! [X0,X1,X2] :
      ( ( ( member(X0,universal_class)
          & ( X0 = X1
            | X0 = X2 ) )
        | ~ member(X0,unordered_pair(X2,X1)) )
      & ( member(X0,unordered_pair(X2,X1))
        | ~ member(X0,universal_class)
        | ( X0 != X1
          & X0 != X2 ) ) ),
    inference(rectify,[],[f71]) ).

fof(f71,plain,
    ! [X2,X0,X1] :
      ( ( ( member(X2,universal_class)
          & ( X0 = X2
            | X1 = X2 ) )
        | ~ member(X2,unordered_pair(X1,X0)) )
      & ( member(X2,unordered_pair(X1,X0))
        | ~ member(X2,universal_class)
        | ( X0 != X2
          & X1 != X2 ) ) ),
    inference(flattening,[],[f70]) ).

fof(f70,plain,
    ! [X2,X0,X1] :
      ( ( ( member(X2,universal_class)
          & ( X0 = X2
            | X1 = X2 ) )
        | ~ member(X2,unordered_pair(X1,X0)) )
      & ( member(X2,unordered_pair(X1,X0))
        | ~ member(X2,universal_class)
        | ( X0 != X2
          & X1 != X2 ) ) ),
    inference(nnf_transformation,[],[f48]) ).

fof(f48,plain,
    ! [X2,X0,X1] :
      ( ( member(X2,universal_class)
        & ( X0 = X2
          | X1 = X2 ) )
    <=> member(X2,unordered_pair(X1,X0)) ),
    inference(rectify,[],[f4]) ).

fof(f4,axiom,
    ! [X1,X0,X2] :
      ( ( member(X2,universal_class)
        & ( X1 = X2
          | X0 = X2 ) )
    <=> member(X2,unordered_pair(X0,X1)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',unordered_pair_defn) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem    : SET073+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% 0.03/0.12  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.12/0.33  % Computer : n012.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit   : 300
% 0.12/0.33  % WCLimit    : 300
% 0.12/0.33  % DateTime   : Tue Aug 30 13:07:35 EDT 2022
% 0.12/0.33  % CPUTime    : 
% 0.19/0.47  % (29849)lrs+10_1:1024_nm=0:nwc=5.0:ss=axioms:i=13:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/13Mi)
% 0.19/0.48  % (29858)lrs+10_1:32_br=off:nm=16:sd=2:ss=axioms:st=2.0:urr=on:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.19/0.48  % (29858)First to succeed.
% 0.19/0.49  % (29858)Refutation found. Thanks to Tanya!
% 0.19/0.49  % SZS status Theorem for theBenchmark
% 0.19/0.49  % SZS output start Proof for theBenchmark
% See solution above
% 0.19/0.49  % (29858)------------------------------
% 0.19/0.49  % (29858)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.49  % (29858)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.49  % (29858)Termination reason: Refutation
% 0.19/0.49  
% 0.19/0.49  % (29858)Memory used [KB]: 6012
% 0.19/0.49  % (29858)Time elapsed: 0.091 s
% 0.19/0.49  % (29858)Instructions burned: 3 (million)
% 0.19/0.49  % (29858)------------------------------
% 0.19/0.49  % (29858)------------------------------
% 0.19/0.49  % (29836)Success in time 0.153 s
%------------------------------------------------------------------------------