TSTP Solution File: SET893+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SET893+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_sat --cores 0 -t %d %s

% Computer : n028.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 18:26:02 EDT 2022

% Result   : Theorem 0.20s 0.49s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   74 (   8 unt;   0 def)
%            Number of atoms       :  236 (  84 equ)
%            Maximal formula atoms :   12 (   3 avg)
%            Number of connectives :  269 ( 107   ~; 114   |;  35   &)
%                                         (  10 <=>;   2  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   4 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   4 con; 0-2 aty)
%            Number of variables   :  128 ( 105   !;  23   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f123,plain,
    $false,
    inference(avatar_sat_refutation,[],[f74,f75,f76,f102,f110,f122]) ).

fof(f122,plain,
    ( ~ spl7_1
    | ~ spl7_2
    | spl7_3 ),
    inference(avatar_contradiction_clause,[],[f121]) ).

fof(f121,plain,
    ( $false
    | ~ spl7_1
    | ~ spl7_2
    | spl7_3 ),
    inference(subsumption_resolution,[],[f120,f60]) ).

fof(f60,plain,
    ! [X2] : in(X2,singleton(X2)),
    inference(equality_resolution,[],[f59]) ).

fof(f59,plain,
    ! [X2,X0] :
      ( in(X2,X0)
      | singleton(X2) != X0 ),
    inference(equality_resolution,[],[f45]) ).

fof(f45,plain,
    ! [X2,X0,X1] :
      ( in(X2,X0)
      | X1 != X2
      | singleton(X1) != X0 ),
    inference(cnf_transformation,[],[f27]) ).

fof(f27,plain,
    ! [X0,X1] :
      ( ( ! [X2] :
            ( ( in(X2,X0)
              | X1 != X2 )
            & ( X1 = X2
              | ~ in(X2,X0) ) )
        | singleton(X1) != X0 )
      & ( singleton(X1) = X0
        | ( ( sK2(X0,X1) != X1
            | ~ in(sK2(X0,X1),X0) )
          & ( sK2(X0,X1) = X1
            | in(sK2(X0,X1),X0) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2])],[f25,f26]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( ? [X3] :
          ( ( X1 != X3
            | ~ in(X3,X0) )
          & ( X1 = X3
            | in(X3,X0) ) )
     => ( ( sK2(X0,X1) != X1
          | ~ in(sK2(X0,X1),X0) )
        & ( sK2(X0,X1) = X1
          | in(sK2(X0,X1),X0) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( ( ! [X2] :
            ( ( in(X2,X0)
              | X1 != X2 )
            & ( X1 = X2
              | ~ in(X2,X0) ) )
        | singleton(X1) != X0 )
      & ( singleton(X1) = X0
        | ? [X3] :
            ( ( X1 != X3
              | ~ in(X3,X0) )
            & ( X1 = X3
              | in(X3,X0) ) ) ) ),
    inference(rectify,[],[f24]) ).

fof(f24,plain,
    ! [X1,X0] :
      ( ( ! [X2] :
            ( ( in(X2,X1)
              | X0 != X2 )
            & ( X0 = X2
              | ~ in(X2,X1) ) )
        | singleton(X0) != X1 )
      & ( singleton(X0) = X1
        | ? [X2] :
            ( ( X0 != X2
              | ~ in(X2,X1) )
            & ( X0 = X2
              | in(X2,X1) ) ) ) ),
    inference(nnf_transformation,[],[f3]) ).

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

fof(f120,plain,
    ( ~ in(sK3,singleton(sK3))
    | ~ spl7_1
    | ~ spl7_2
    | spl7_3 ),
    inference(subsumption_resolution,[],[f116,f60]) ).

fof(f116,plain,
    ( ~ in(sK5,singleton(sK5))
    | ~ in(sK3,singleton(sK3))
    | ~ spl7_1
    | ~ spl7_2
    | spl7_3 ),
    inference(resolution,[],[f80,f113]) ).

fof(f113,plain,
    ( ~ in(unordered_pair(singleton(sK3),unordered_pair(sK3,sK5)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | ~ spl7_1
    | ~ spl7_2
    | spl7_3 ),
    inference(forward_demodulation,[],[f112,f64]) ).

fof(f64,plain,
    ( sK4 = sK3
    | ~ spl7_1 ),
    inference(avatar_component_clause,[],[f63]) ).

fof(f63,plain,
    ( spl7_1
  <=> sK4 = sK3 ),
    introduced(avatar_definition,[new_symbols(naming,[spl7_1])]) ).

fof(f112,plain,
    ( ~ in(unordered_pair(singleton(sK4),unordered_pair(sK4,sK5)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | ~ spl7_2
    | spl7_3 ),
    inference(forward_demodulation,[],[f111,f68]) ).

fof(f68,plain,
    ( sK5 = sK6
    | ~ spl7_2 ),
    inference(avatar_component_clause,[],[f67]) ).

fof(f67,plain,
    ( spl7_2
  <=> sK5 = sK6 ),
    introduced(avatar_definition,[new_symbols(naming,[spl7_2])]) ).

fof(f111,plain,
    ( ~ in(unordered_pair(singleton(sK4),unordered_pair(sK4,sK6)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | spl7_3 ),
    inference(forward_demodulation,[],[f73,f47]) ).

fof(f47,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f29]) ).

fof(f29,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(rectify,[],[f12]) ).

fof(f12,plain,
    ! [X1,X0] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(rectify,[],[f2]) ).

fof(f2,axiom,
    ! [X1,X0] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

fof(f73,plain,
    ( ~ in(unordered_pair(unordered_pair(sK4,sK6),singleton(sK4)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | spl7_3 ),
    inference(avatar_component_clause,[],[f71]) ).

fof(f71,plain,
    ( spl7_3
  <=> in(unordered_pair(unordered_pair(sK4,sK6),singleton(sK4)),cartesian_product2(singleton(sK3),singleton(sK5))) ),
    introduced(avatar_definition,[new_symbols(naming,[spl7_3])]) ).

fof(f80,plain,
    ! [X2,X3,X0,X1] :
      ( in(unordered_pair(singleton(X3),unordered_pair(X3,X2)),cartesian_product2(X1,X0))
      | ~ in(X2,X0)
      | ~ in(X3,X1) ),
    inference(backward_demodulation,[],[f52,f47]) ).

fof(f52,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(X3,X1)
      | ~ in(X2,X0)
      | in(unordered_pair(unordered_pair(X3,X2),singleton(X3)),cartesian_product2(X1,X0)) ),
    inference(definition_unfolding,[],[f40,f41]) ).

fof(f41,plain,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    inference(cnf_transformation,[],[f4]) ).

fof(f4,axiom,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d5_tarski) ).

fof(f40,plain,
    ! [X2,X3,X0,X1] :
      ( in(ordered_pair(X3,X2),cartesian_product2(X1,X0))
      | ~ in(X3,X1)
      | ~ in(X2,X0) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f23,plain,
    ! [X0,X1,X2,X3] :
      ( ( in(ordered_pair(X3,X2),cartesian_product2(X1,X0))
        | ~ in(X3,X1)
        | ~ in(X2,X0) )
      & ( ( in(X3,X1)
          & in(X2,X0) )
        | ~ in(ordered_pair(X3,X2),cartesian_product2(X1,X0)) ) ),
    inference(rectify,[],[f22]) ).

fof(f22,plain,
    ! [X3,X1,X2,X0] :
      ( ( in(ordered_pair(X0,X2),cartesian_product2(X1,X3))
        | ~ in(X0,X1)
        | ~ in(X2,X3) )
      & ( ( in(X0,X1)
          & in(X2,X3) )
        | ~ in(ordered_pair(X0,X2),cartesian_product2(X1,X3)) ) ),
    inference(flattening,[],[f21]) ).

fof(f21,plain,
    ! [X3,X1,X2,X0] :
      ( ( in(ordered_pair(X0,X2),cartesian_product2(X1,X3))
        | ~ in(X0,X1)
        | ~ in(X2,X3) )
      & ( ( in(X0,X1)
          & in(X2,X3) )
        | ~ in(ordered_pair(X0,X2),cartesian_product2(X1,X3)) ) ),
    inference(nnf_transformation,[],[f13]) ).

fof(f13,plain,
    ! [X3,X1,X2,X0] :
      ( in(ordered_pair(X0,X2),cartesian_product2(X1,X3))
    <=> ( in(X0,X1)
        & in(X2,X3) ) ),
    inference(rectify,[],[f6]) ).

fof(f6,axiom,
    ! [X0,X2,X1,X3] :
      ( ( in(X0,X2)
        & in(X1,X3) )
    <=> in(ordered_pair(X0,X1),cartesian_product2(X2,X3)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l55_zfmisc_1) ).

fof(f110,plain,
    ( spl7_2
    | ~ spl7_3 ),
    inference(avatar_contradiction_clause,[],[f109]) ).

fof(f109,plain,
    ( $false
    | spl7_2
    | ~ spl7_3 ),
    inference(subsumption_resolution,[],[f107,f69]) ).

fof(f69,plain,
    ( sK5 != sK6
    | spl7_2 ),
    inference(avatar_component_clause,[],[f67]) ).

fof(f107,plain,
    ( sK5 = sK6
    | ~ spl7_3 ),
    inference(resolution,[],[f92,f61]) ).

fof(f61,plain,
    ! [X2,X1] :
      ( ~ in(X2,singleton(X1))
      | X1 = X2 ),
    inference(equality_resolution,[],[f44]) ).

fof(f44,plain,
    ! [X2,X0,X1] :
      ( X1 = X2
      | ~ in(X2,X0)
      | singleton(X1) != X0 ),
    inference(cnf_transformation,[],[f27]) ).

fof(f92,plain,
    ( in(sK6,singleton(sK5))
    | ~ spl7_3 ),
    inference(resolution,[],[f78,f81]) ).

fof(f81,plain,
    ( in(unordered_pair(singleton(sK4),unordered_pair(sK4,sK6)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | ~ spl7_3 ),
    inference(forward_demodulation,[],[f72,f47]) ).

fof(f72,plain,
    ( in(unordered_pair(unordered_pair(sK4,sK6),singleton(sK4)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | ~ spl7_3 ),
    inference(avatar_component_clause,[],[f71]) ).

fof(f78,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(unordered_pair(singleton(X3),unordered_pair(X3,X2)),cartesian_product2(X1,X0))
      | in(X2,X0) ),
    inference(backward_demodulation,[],[f54,f47]) ).

fof(f54,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(unordered_pair(unordered_pair(X3,X2),singleton(X3)),cartesian_product2(X1,X0))
      | in(X2,X0) ),
    inference(definition_unfolding,[],[f38,f41]) ).

fof(f38,plain,
    ! [X2,X3,X0,X1] :
      ( in(X2,X0)
      | ~ in(ordered_pair(X3,X2),cartesian_product2(X1,X0)) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f102,plain,
    ( spl7_1
    | ~ spl7_3 ),
    inference(avatar_contradiction_clause,[],[f101]) ).

fof(f101,plain,
    ( $false
    | spl7_1
    | ~ spl7_3 ),
    inference(subsumption_resolution,[],[f99,f65]) ).

fof(f65,plain,
    ( sK4 != sK3
    | spl7_1 ),
    inference(avatar_component_clause,[],[f63]) ).

fof(f99,plain,
    ( sK4 = sK3
    | ~ spl7_3 ),
    inference(resolution,[],[f89,f61]) ).

fof(f89,plain,
    ( in(sK4,singleton(sK3))
    | ~ spl7_3 ),
    inference(resolution,[],[f77,f81]) ).

fof(f77,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(unordered_pair(singleton(X3),unordered_pair(X3,X2)),cartesian_product2(X1,X0))
      | in(X3,X1) ),
    inference(backward_demodulation,[],[f53,f47]) ).

fof(f53,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(unordered_pair(unordered_pair(X3,X2),singleton(X3)),cartesian_product2(X1,X0))
      | in(X3,X1) ),
    inference(definition_unfolding,[],[f39,f41]) ).

fof(f39,plain,
    ! [X2,X3,X0,X1] :
      ( in(X3,X1)
      | ~ in(ordered_pair(X3,X2),cartesian_product2(X1,X0)) ),
    inference(cnf_transformation,[],[f23]) ).

fof(f76,plain,
    ( spl7_3
    | spl7_2 ),
    inference(avatar_split_clause,[],[f58,f67,f71]) ).

fof(f58,plain,
    ( sK5 = sK6
    | in(unordered_pair(unordered_pair(sK4,sK6),singleton(sK4)),cartesian_product2(singleton(sK3),singleton(sK5))) ),
    inference(definition_unfolding,[],[f49,f41]) ).

fof(f49,plain,
    ( sK5 = sK6
    | in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) ),
    inference(cnf_transformation,[],[f35]) ).

fof(f35,plain,
    ( ( sK4 != sK3
      | sK5 != sK6
      | ~ in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) )
    & ( ( sK4 = sK3
        & sK5 = sK6 )
      | in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3,sK4,sK5,sK6])],[f33,f34]) ).

fof(f34,plain,
    ( ? [X0,X1,X2,X3] :
        ( ( X0 != X1
          | X2 != X3
          | ~ in(ordered_pair(X1,X3),cartesian_product2(singleton(X0),singleton(X2))) )
        & ( ( X0 = X1
            & X2 = X3 )
          | in(ordered_pair(X1,X3),cartesian_product2(singleton(X0),singleton(X2))) ) )
   => ( ( sK4 != sK3
        | sK5 != sK6
        | ~ in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) )
      & ( ( sK4 = sK3
          & sK5 = sK6 )
        | in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f33,plain,
    ? [X0,X1,X2,X3] :
      ( ( X0 != X1
        | X2 != X3
        | ~ in(ordered_pair(X1,X3),cartesian_product2(singleton(X0),singleton(X2))) )
      & ( ( X0 = X1
          & X2 = X3 )
        | in(ordered_pair(X1,X3),cartesian_product2(singleton(X0),singleton(X2))) ) ),
    inference(rectify,[],[f32]) ).

fof(f32,plain,
    ? [X0,X2,X3,X1] :
      ( ( X0 != X2
        | X1 != X3
        | ~ in(ordered_pair(X2,X1),cartesian_product2(singleton(X0),singleton(X3))) )
      & ( ( X0 = X2
          & X1 = X3 )
        | in(ordered_pair(X2,X1),cartesian_product2(singleton(X0),singleton(X3))) ) ),
    inference(flattening,[],[f31]) ).

fof(f31,plain,
    ? [X0,X2,X3,X1] :
      ( ( X0 != X2
        | X1 != X3
        | ~ in(ordered_pair(X2,X1),cartesian_product2(singleton(X0),singleton(X3))) )
      & ( ( X0 = X2
          & X1 = X3 )
        | in(ordered_pair(X2,X1),cartesian_product2(singleton(X0),singleton(X3))) ) ),
    inference(nnf_transformation,[],[f15]) ).

fof(f15,plain,
    ? [X0,X2,X3,X1] :
      ( in(ordered_pair(X2,X1),cartesian_product2(singleton(X0),singleton(X3)))
    <~> ( X0 = X2
        & X1 = X3 ) ),
    inference(ennf_transformation,[],[f11]) ).

fof(f11,plain,
    ~ ! [X1,X3,X0,X2] :
        ( in(ordered_pair(X2,X1),cartesian_product2(singleton(X0),singleton(X3)))
      <=> ( X0 = X2
          & X1 = X3 ) ),
    inference(rectify,[],[f10]) ).

fof(f10,negated_conjecture,
    ~ ! [X2,X1,X0,X3] :
        ( in(ordered_pair(X0,X1),cartesian_product2(singleton(X2),singleton(X3)))
      <=> ( X0 = X2
          & X1 = X3 ) ),
    inference(negated_conjecture,[],[f9]) ).

fof(f9,conjecture,
    ! [X2,X1,X0,X3] :
      ( in(ordered_pair(X0,X1),cartesian_product2(singleton(X2),singleton(X3)))
    <=> ( X0 = X2
        & X1 = X3 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t34_zfmisc_1) ).

fof(f75,plain,
    ( spl7_3
    | spl7_1 ),
    inference(avatar_split_clause,[],[f57,f63,f71]) ).

fof(f57,plain,
    ( sK4 = sK3
    | in(unordered_pair(unordered_pair(sK4,sK6),singleton(sK4)),cartesian_product2(singleton(sK3),singleton(sK5))) ),
    inference(definition_unfolding,[],[f50,f41]) ).

fof(f50,plain,
    ( sK4 = sK3
    | in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) ),
    inference(cnf_transformation,[],[f35]) ).

fof(f74,plain,
    ( ~ spl7_1
    | ~ spl7_2
    | ~ spl7_3 ),
    inference(avatar_split_clause,[],[f56,f71,f67,f63]) ).

fof(f56,plain,
    ( ~ in(unordered_pair(unordered_pair(sK4,sK6),singleton(sK4)),cartesian_product2(singleton(sK3),singleton(sK5)))
    | sK5 != sK6
    | sK4 != sK3 ),
    inference(definition_unfolding,[],[f51,f41]) ).

fof(f51,plain,
    ( sK4 != sK3
    | sK5 != sK6
    | ~ in(ordered_pair(sK4,sK6),cartesian_product2(singleton(sK3),singleton(sK5))) ),
    inference(cnf_transformation,[],[f35]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem    : SET893+1 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.13/0.34  % Computer : n028.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 14:37:48 EDT 2022
% 0.13/0.34  % CPUTime    : 
% 0.20/0.46  % (20660)ott+10_1:28_bd=off:bs=on:tgt=ground:i=101:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/101Mi)
% 0.20/0.48  % (20669)ott+3_1:1_gsp=on:lcm=predicate:i=138:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/138Mi)
% 0.20/0.49  % (20669)First to succeed.
% 0.20/0.49  % (20669)Refutation found. Thanks to Tanya!
% 0.20/0.49  % SZS status Theorem for theBenchmark
% 0.20/0.49  % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.49  % (20669)------------------------------
% 0.20/0.49  % (20669)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.49  % (20669)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.49  % (20669)Termination reason: Refutation
% 0.20/0.49  
% 0.20/0.49  % (20669)Memory used [KB]: 5500
% 0.20/0.49  % (20669)Time elapsed: 0.084 s
% 0.20/0.49  % (20669)Instructions burned: 4 (million)
% 0.20/0.49  % (20669)------------------------------
% 0.20/0.49  % (20669)------------------------------
% 0.20/0.49  % (20647)Success in time 0.137 s
%------------------------------------------------------------------------------