TSTP Solution File: SET882+1 by SnakeForV---1.0

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%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : SET882+1 : TPTP v8.1.0. Released v3.2.0.
% 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 18:22:39 EDT 2022

% Result   : Theorem 0.19s 0.46s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    5
% Syntax   : Number of formulae    :   28 (   6 unt;   0 def)
%            Number of atoms       :  109 (  63 equ)
%            Maximal formula atoms :   10 (   3 avg)
%            Number of connectives :  137 (  56   ~;  47   |;  26   &)
%                                         (   4 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   2 con; 0-2 aty)
%            Number of variables   :   54 (  47   !;   7   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f57,plain,
    $false,
    inference(subsumption_resolution,[],[f55,f29]) ).

fof(f29,plain,
    sK0 != sK1,
    inference(cnf_transformation,[],[f18]) ).

fof(f18,plain,
    ( set_difference(unordered_pair(sK0,sK1),singleton(sK1)) != singleton(sK0)
    & sK0 != sK1 ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f12,f17]) ).

fof(f17,plain,
    ( ? [X0,X1] :
        ( singleton(X0) != set_difference(unordered_pair(X0,X1),singleton(X1))
        & X0 != X1 )
   => ( set_difference(unordered_pair(sK0,sK1),singleton(sK1)) != singleton(sK0)
      & sK0 != sK1 ) ),
    introduced(choice_axiom,[]) ).

fof(f12,plain,
    ? [X0,X1] :
      ( singleton(X0) != set_difference(unordered_pair(X0,X1),singleton(X1))
      & X0 != X1 ),
    inference(ennf_transformation,[],[f8]) ).

fof(f8,negated_conjecture,
    ~ ! [X1,X0] :
        ( X0 != X1
       => singleton(X0) = set_difference(unordered_pair(X0,X1),singleton(X1)) ),
    inference(negated_conjecture,[],[f7]) ).

fof(f7,conjecture,
    ! [X1,X0] :
      ( X0 != X1
     => singleton(X0) = set_difference(unordered_pair(X0,X1),singleton(X1)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t23_zfmisc_1) ).

fof(f55,plain,
    sK0 = sK1,
    inference(resolution,[],[f54,f38]) ).

fof(f38,plain,
    ! [X3,X1] :
      ( ~ in(X3,singleton(X1))
      | X1 = X3 ),
    inference(equality_resolution,[],[f31]) ).

fof(f31,plain,
    ! [X3,X0,X1] :
      ( X1 = X3
      | ~ in(X3,X0)
      | singleton(X1) != X0 ),
    inference(cnf_transformation,[],[f22]) ).

fof(f22,plain,
    ! [X0,X1] :
      ( ( singleton(X1) = X0
        | ( ( sK2(X0,X1) != X1
            | ~ in(sK2(X0,X1),X0) )
          & ( sK2(X0,X1) = X1
            | in(sK2(X0,X1),X0) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X0)
              | X1 != X3 )
            & ( X1 = X3
              | ~ in(X3,X0) ) )
        | singleton(X1) != X0 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2])],[f20,f21]) ).

fof(f21,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ( X1 != X2
            | ~ in(X2,X0) )
          & ( X1 = X2
            | in(X2,X0) ) )
     => ( ( sK2(X0,X1) != X1
          | ~ in(sK2(X0,X1),X0) )
        & ( sK2(X0,X1) = X1
          | in(sK2(X0,X1),X0) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f20,plain,
    ! [X0,X1] :
      ( ( singleton(X1) = X0
        | ? [X2] :
            ( ( X1 != X2
              | ~ in(X2,X0) )
            & ( X1 = X2
              | in(X2,X0) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X0)
              | X1 != X3 )
            & ( X1 = X3
              | ~ in(X3,X0) ) )
        | singleton(X1) != X0 ) ),
    inference(rectify,[],[f19]) ).

fof(f19,plain,
    ! [X1,X0] :
      ( ( singleton(X0) = X1
        | ? [X2] :
            ( ( X0 != X2
              | ~ in(X2,X1) )
            & ( X0 = X2
              | in(X2,X1) ) ) )
      & ( ! [X2] :
            ( ( in(X2,X1)
              | X0 != X2 )
            & ( X0 = X2
              | ~ in(X2,X1) ) )
        | singleton(X0) != X1 ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f3,axiom,
    ! [X1,X0] :
      ( singleton(X0) = X1
    <=> ! [X2] :
          ( in(X2,X1)
        <=> X0 = X2 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

fof(f54,plain,
    in(sK0,singleton(sK1)),
    inference(subsumption_resolution,[],[f52,f37]) ).

fof(f37,plain,
    ! [X3] : in(X3,singleton(X3)),
    inference(equality_resolution,[],[f36]) ).

fof(f36,plain,
    ! [X3,X0] :
      ( in(X3,X0)
      | singleton(X3) != X0 ),
    inference(equality_resolution,[],[f32]) ).

fof(f32,plain,
    ! [X3,X0,X1] :
      ( in(X3,X0)
      | X1 != X3
      | singleton(X1) != X0 ),
    inference(cnf_transformation,[],[f22]) ).

fof(f52,plain,
    ( in(sK0,singleton(sK1))
    | ~ in(sK1,singleton(sK1)) ),
    inference(trivial_inequality_removal,[],[f49]) ).

fof(f49,plain,
    ( ~ in(sK1,singleton(sK1))
    | in(sK0,singleton(sK1))
    | singleton(sK0) != singleton(sK0) ),
    inference(superposition,[],[f30,f25]) ).

fof(f25,plain,
    ! [X2,X0,X1] :
      ( singleton(X0) = set_difference(unordered_pair(X0,X2),X1)
      | ~ in(X2,X1)
      | in(X0,X1) ),
    inference(cnf_transformation,[],[f16]) ).

fof(f16,plain,
    ! [X0,X1,X2] :
      ( ( ( ~ in(X0,X1)
          & ( in(X2,X1)
            | X0 = X2 ) )
        | singleton(X0) != set_difference(unordered_pair(X0,X2),X1) )
      & ( singleton(X0) = set_difference(unordered_pair(X0,X2),X1)
        | in(X0,X1)
        | ( ~ in(X2,X1)
          & X0 != X2 ) ) ),
    inference(rectify,[],[f15]) ).

fof(f15,plain,
    ! [X2,X1,X0] :
      ( ( ( ~ in(X2,X1)
          & ( in(X0,X1)
            | X0 = X2 ) )
        | set_difference(unordered_pair(X2,X0),X1) != singleton(X2) )
      & ( set_difference(unordered_pair(X2,X0),X1) = singleton(X2)
        | in(X2,X1)
        | ( ~ in(X0,X1)
          & X0 != X2 ) ) ),
    inference(flattening,[],[f14]) ).

fof(f14,plain,
    ! [X2,X1,X0] :
      ( ( ( ~ in(X2,X1)
          & ( in(X0,X1)
            | X0 = X2 ) )
        | set_difference(unordered_pair(X2,X0),X1) != singleton(X2) )
      & ( set_difference(unordered_pair(X2,X0),X1) = singleton(X2)
        | in(X2,X1)
        | ( ~ in(X0,X1)
          & X0 != X2 ) ) ),
    inference(nnf_transformation,[],[f9]) ).

fof(f9,plain,
    ! [X2,X1,X0] :
      ( ( ~ in(X2,X1)
        & ( in(X0,X1)
          | X0 = X2 ) )
    <=> set_difference(unordered_pair(X2,X0),X1) = singleton(X2) ),
    inference(rectify,[],[f4]) ).

fof(f4,axiom,
    ! [X1,X2,X0] :
      ( ( ~ in(X0,X2)
        & ( in(X1,X2)
          | X0 = X1 ) )
    <=> singleton(X0) = set_difference(unordered_pair(X0,X1),X2) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l39_zfmisc_1) ).

fof(f30,plain,
    set_difference(unordered_pair(sK0,sK1),singleton(sK1)) != singleton(sK0),
    inference(cnf_transformation,[],[f18]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem    : SET882+1 : TPTP v8.1.0. Released v3.2.0.
% 0.10/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.13/0.34  % Computer : n012.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit   : 300
% 0.13/0.34  % WCLimit    : 300
% 0.13/0.34  % DateTime   : Tue Aug 30 14:27:35 EDT 2022
% 0.13/0.34  % CPUTime    : 
% 0.19/0.44  % (28720)dis+1010_1:50_awrs=decay:awrsf=128:nwc=10.0:s2pl=no:sp=frequency:ss=axioms:i=39:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/39Mi)
% 0.19/0.44  % (28720)First to succeed.
% 0.19/0.46  % (28720)Refutation found. Thanks to Tanya!
% 0.19/0.46  % SZS status Theorem for theBenchmark
% 0.19/0.46  % SZS output start Proof for theBenchmark
% See solution above
% 0.19/0.46  % (28720)------------------------------
% 0.19/0.46  % (28720)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.46  % (28720)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.46  % (28720)Termination reason: Refutation
% 0.19/0.46  
% 0.19/0.46  % (28720)Memory used [KB]: 6012
% 0.19/0.46  % (28720)Time elapsed: 0.066 s
% 0.19/0.46  % (28720)Instructions burned: 3 (million)
% 0.19/0.46  % (28720)------------------------------
% 0.19/0.46  % (28720)------------------------------
% 0.19/0.46  % (28709)Success in time 0.117 s
%------------------------------------------------------------------------------