TSTP Solution File: SET155+4 by SnakeForV---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : SET155+4 : TPTP v8.1.0. Released v2.2.0.
% 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 : n014.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 18:19:33 EDT 2022

% Result   : Theorem 0.19s 0.54s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :   14
% Syntax   : Number of formulae    :   94 (   2 unt;   0 def)
%            Number of atoms       :  277 (   0 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  284 ( 101   ~; 114   |;  46   &)
%                                         (  16 <=>;   7  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :   10 (   9 usr;   7 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   3 con; 0-2 aty)
%            Number of variables   :  131 ( 116   !;  15   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f240,plain,
    $false,
    inference(avatar_sat_refutation,[],[f105,f123,f144,f148,f176,f219,f239]) ).

fof(f239,plain,
    ( spl6_2
    | spl6_6 ),
    inference(avatar_contradiction_clause,[],[f233]) ).

fof(f233,plain,
    ( $false
    | spl6_2
    | spl6_6 ),
    inference(resolution,[],[f228,f150]) ).

fof(f150,plain,
    ( member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,union(sK0,sK2)))
    | spl6_2 ),
    inference(resolution,[],[f104,f75]) ).

fof(f75,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | member(sK3(X0,X1),X0) ),
    inference(cnf_transformation,[],[f45]) ).

fof(f45,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ( ~ member(sK3(X0,X1),X1)
          & member(sK3(X0,X1),X0) ) )
      & ( ! [X3] :
            ( member(X3,X1)
            | ~ member(X3,X0) )
        | ~ subset(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3])],[f43,f44]) ).

fof(f44,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ~ member(X2,X1)
          & member(X2,X0) )
     => ( ~ member(sK3(X0,X1),X1)
        & member(sK3(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f43,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ? [X2] :
            ( ~ member(X2,X1)
            & member(X2,X0) ) )
      & ( ! [X3] :
            ( member(X3,X1)
            | ~ member(X3,X0) )
        | ~ subset(X0,X1) ) ),
    inference(rectify,[],[f42]) ).

fof(f42,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ? [X2] :
            ( ~ member(X2,X1)
            & member(X2,X0) ) )
      & ( ! [X2] :
            ( member(X2,X1)
            | ~ member(X2,X0) )
        | ~ subset(X0,X1) ) ),
    inference(nnf_transformation,[],[f29]) ).

fof(f29,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( member(X2,X1)
          | ~ member(X2,X0) ) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f1,axiom,
    ! [X0,X1] :
      ( ! [X2] :
          ( member(X2,X0)
         => member(X2,X1) )
    <=> subset(X0,X1) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subset) ).

fof(f104,plain,
    ( ~ subset(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2)))
    | spl6_2 ),
    inference(avatar_component_clause,[],[f102]) ).

fof(f102,plain,
    ( spl6_2
  <=> subset(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))) ),
    introduced(avatar_definition,[new_symbols(naming,[spl6_2])]) ).

fof(f228,plain,
    ( ! [X0] : ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,X0))
    | spl6_2
    | spl6_6 ),
    inference(resolution,[],[f224,f84]) ).

fof(f84,plain,
    ! [X2,X0,X1] :
      ( member(X2,X0)
      | ~ member(X2,difference(X0,X1)) ),
    inference(cnf_transformation,[],[f55]) ).

fof(f55,plain,
    ! [X0,X1,X2] :
      ( ( ( ~ member(X2,X1)
          & member(X2,X0) )
        | ~ member(X2,difference(X0,X1)) )
      & ( member(X2,difference(X0,X1))
        | member(X2,X1)
        | ~ member(X2,X0) ) ),
    inference(rectify,[],[f54]) ).

fof(f54,plain,
    ! [X1,X2,X0] :
      ( ( ( ~ member(X0,X2)
          & member(X0,X1) )
        | ~ member(X0,difference(X1,X2)) )
      & ( member(X0,difference(X1,X2))
        | member(X0,X2)
        | ~ member(X0,X1) ) ),
    inference(flattening,[],[f53]) ).

fof(f53,plain,
    ! [X1,X2,X0] :
      ( ( ( ~ member(X0,X2)
          & member(X0,X1) )
        | ~ member(X0,difference(X1,X2)) )
      & ( member(X0,difference(X1,X2))
        | member(X0,X2)
        | ~ member(X0,X1) ) ),
    inference(nnf_transformation,[],[f17]) ).

fof(f17,plain,
    ! [X1,X2,X0] :
      ( ( ~ member(X0,X2)
        & member(X0,X1) )
    <=> member(X0,difference(X1,X2)) ),
    inference(rectify,[],[f7]) ).

fof(f7,axiom,
    ! [X1,X3,X0] :
      ( ( ~ member(X1,X0)
        & member(X1,X3) )
    <=> member(X1,difference(X3,X0)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference) ).

fof(f224,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK1)
    | spl6_2
    | spl6_6 ),
    inference(subsumption_resolution,[],[f222,f180]) ).

fof(f180,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK2)
    | spl6_2 ),
    inference(resolution,[],[f156,f62]) ).

fof(f62,plain,
    ! [X2,X0,X1] :
      ( member(X1,union(X0,X2))
      | ~ member(X1,X2) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f33,plain,
    ! [X0,X1,X2] :
      ( ( member(X1,X2)
        | member(X1,X0)
        | ~ member(X1,union(X0,X2)) )
      & ( member(X1,union(X0,X2))
        | ( ~ member(X1,X2)
          & ~ member(X1,X0) ) ) ),
    inference(flattening,[],[f32]) ).

fof(f32,plain,
    ! [X0,X1,X2] :
      ( ( member(X1,X2)
        | member(X1,X0)
        | ~ member(X1,union(X0,X2)) )
      & ( member(X1,union(X0,X2))
        | ( ~ member(X1,X2)
          & ~ member(X1,X0) ) ) ),
    inference(nnf_transformation,[],[f18]) ).

fof(f18,plain,
    ! [X0,X1,X2] :
      ( ( member(X1,X2)
        | member(X1,X0) )
    <=> member(X1,union(X0,X2)) ),
    inference(rectify,[],[f5]) ).

fof(f5,axiom,
    ! [X0,X2,X1] :
      ( ( member(X2,X0)
        | member(X2,X1) )
    <=> member(X2,union(X0,X1)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',union) ).

fof(f156,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),union(sK0,sK2))
    | spl6_2 ),
    inference(resolution,[],[f150,f85]) ).

fof(f85,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,difference(X0,X1))
      | ~ member(X2,X1) ),
    inference(cnf_transformation,[],[f55]) ).

fof(f222,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK1)
    | member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK2)
    | spl6_6 ),
    inference(resolution,[],[f175,f83]) ).

fof(f83,plain,
    ! [X2,X0,X1] :
      ( member(X2,difference(X0,X1))
      | member(X2,X1)
      | ~ member(X2,X0) ),
    inference(cnf_transformation,[],[f55]) ).

fof(f175,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,sK2))
    | spl6_6 ),
    inference(avatar_component_clause,[],[f173]) ).

fof(f173,plain,
    ( spl6_6
  <=> member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,sK2)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl6_6])]) ).

fof(f219,plain,
    ( spl6_2
    | spl6_5 ),
    inference(avatar_contradiction_clause,[],[f215]) ).

fof(f215,plain,
    ( $false
    | spl6_2
    | spl6_5 ),
    inference(resolution,[],[f193,f150]) ).

fof(f193,plain,
    ( ! [X0] : ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,X0))
    | spl6_2
    | spl6_5 ),
    inference(resolution,[],[f184,f84]) ).

fof(f184,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK1)
    | spl6_2
    | spl6_5 ),
    inference(subsumption_resolution,[],[f182,f179]) ).

fof(f179,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK0)
    | spl6_2 ),
    inference(resolution,[],[f156,f61]) ).

fof(f61,plain,
    ! [X2,X0,X1] :
      ( member(X1,union(X0,X2))
      | ~ member(X1,X0) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f182,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK1)
    | member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),sK0)
    | spl6_5 ),
    inference(resolution,[],[f171,f83]) ).

fof(f171,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,sK0))
    | spl6_5 ),
    inference(avatar_component_clause,[],[f169]) ).

fof(f169,plain,
    ( spl6_5
  <=> member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,sK0)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl6_5])]) ).

fof(f176,plain,
    ( ~ spl6_5
    | ~ spl6_6
    | spl6_2 ),
    inference(avatar_split_clause,[],[f166,f102,f173,f169]) ).

fof(f166,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,sK2))
    | ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),difference(sK1,sK0))
    | spl6_2 ),
    inference(resolution,[],[f151,f71]) ).

fof(f71,plain,
    ! [X2,X0,X1] :
      ( member(X1,intersection(X2,X0))
      | ~ member(X1,X2)
      | ~ member(X1,X0) ),
    inference(cnf_transformation,[],[f41]) ).

fof(f41,plain,
    ! [X0,X1,X2] :
      ( ( ( member(X1,X0)
          & member(X1,X2) )
        | ~ member(X1,intersection(X2,X0)) )
      & ( member(X1,intersection(X2,X0))
        | ~ member(X1,X0)
        | ~ member(X1,X2) ) ),
    inference(rectify,[],[f40]) ).

fof(f40,plain,
    ! [X0,X2,X1] :
      ( ( ( member(X2,X0)
          & member(X2,X1) )
        | ~ member(X2,intersection(X1,X0)) )
      & ( member(X2,intersection(X1,X0))
        | ~ member(X2,X0)
        | ~ member(X2,X1) ) ),
    inference(flattening,[],[f39]) ).

fof(f39,plain,
    ! [X0,X2,X1] :
      ( ( ( member(X2,X0)
          & member(X2,X1) )
        | ~ member(X2,intersection(X1,X0)) )
      & ( member(X2,intersection(X1,X0))
        | ~ member(X2,X0)
        | ~ member(X2,X1) ) ),
    inference(nnf_transformation,[],[f24]) ).

fof(f24,plain,
    ! [X0,X2,X1] :
      ( ( member(X2,X0)
        & member(X2,X1) )
    <=> member(X2,intersection(X1,X0)) ),
    inference(rectify,[],[f4]) ).

fof(f4,axiom,
    ! [X1,X0,X2] :
      ( ( member(X2,X1)
        & member(X2,X0) )
    <=> member(X2,intersection(X0,X1)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersection) ).

fof(f151,plain,
    ( ~ member(sK3(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),intersection(difference(sK1,sK0),difference(sK1,sK2)))
    | spl6_2 ),
    inference(resolution,[],[f104,f76]) ).

fof(f76,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ member(sK3(X0,X1),X1) ),
    inference(cnf_transformation,[],[f45]) ).

fof(f148,plain,
    ( spl6_1
    | ~ spl6_3 ),
    inference(avatar_contradiction_clause,[],[f147]) ).

fof(f147,plain,
    ( $false
    | spl6_1
    | ~ spl6_3 ),
    inference(subsumption_resolution,[],[f146,f135]) ).

fof(f135,plain,
    ( ~ member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK0)
    | spl6_1 ),
    inference(resolution,[],[f125,f85]) ).

fof(f125,plain,
    ( member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),difference(sK1,sK0))
    | spl6_1 ),
    inference(resolution,[],[f106,f72]) ).

fof(f72,plain,
    ! [X2,X0,X1] :
      ( ~ member(X1,intersection(X2,X0))
      | member(X1,X2) ),
    inference(cnf_transformation,[],[f41]) ).

fof(f106,plain,
    ( member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),intersection(difference(sK1,sK0),difference(sK1,sK2)))
    | spl6_1 ),
    inference(resolution,[],[f100,f75]) ).

fof(f100,plain,
    ( ~ subset(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2)))
    | spl6_1 ),
    inference(avatar_component_clause,[],[f98]) ).

fof(f98,plain,
    ( spl6_1
  <=> subset(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))) ),
    introduced(avatar_definition,[new_symbols(naming,[spl6_1])]) ).

fof(f146,plain,
    ( member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK0)
    | spl6_1
    | ~ spl6_3 ),
    inference(subsumption_resolution,[],[f145,f130]) ).

fof(f130,plain,
    ( ~ member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK2)
    | spl6_1 ),
    inference(resolution,[],[f124,f85]) ).

fof(f124,plain,
    ( member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),difference(sK1,sK2))
    | spl6_1 ),
    inference(resolution,[],[f106,f73]) ).

fof(f73,plain,
    ! [X2,X0,X1] :
      ( ~ member(X1,intersection(X2,X0))
      | member(X1,X0) ),
    inference(cnf_transformation,[],[f41]) ).

fof(f145,plain,
    ( member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK2)
    | member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK0)
    | ~ spl6_3 ),
    inference(resolution,[],[f118,f63]) ).

fof(f63,plain,
    ! [X2,X0,X1] :
      ( ~ member(X1,union(X0,X2))
      | member(X1,X2)
      | member(X1,X0) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f118,plain,
    ( member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),union(sK0,sK2))
    | ~ spl6_3 ),
    inference(avatar_component_clause,[],[f116]) ).

fof(f116,plain,
    ( spl6_3
  <=> member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),union(sK0,sK2)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl6_3])]) ).

fof(f144,plain,
    ( spl6_1
    | spl6_4 ),
    inference(avatar_contradiction_clause,[],[f139]) ).

fof(f139,plain,
    ( $false
    | spl6_1
    | spl6_4 ),
    inference(resolution,[],[f128,f124]) ).

fof(f128,plain,
    ( ! [X0] : ~ member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),difference(sK1,X0))
    | spl6_4 ),
    inference(resolution,[],[f122,f84]) ).

fof(f122,plain,
    ( ~ member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK1)
    | spl6_4 ),
    inference(avatar_component_clause,[],[f120]) ).

fof(f120,plain,
    ( spl6_4
  <=> member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK1) ),
    introduced(avatar_definition,[new_symbols(naming,[spl6_4])]) ).

fof(f123,plain,
    ( spl6_3
    | ~ spl6_4
    | spl6_1 ),
    inference(avatar_split_clause,[],[f113,f98,f120,f116]) ).

fof(f113,plain,
    ( ~ member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),sK1)
    | member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),union(sK0,sK2))
    | spl6_1 ),
    inference(resolution,[],[f107,f83]) ).

fof(f107,plain,
    ( ~ member(sK3(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))),difference(sK1,union(sK0,sK2)))
    | spl6_1 ),
    inference(resolution,[],[f100,f76]) ).

fof(f105,plain,
    ( ~ spl6_1
    | ~ spl6_2 ),
    inference(avatar_split_clause,[],[f96,f102,f98]) ).

fof(f96,plain,
    ( ~ subset(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2)))
    | ~ subset(intersection(difference(sK1,sK0),difference(sK1,sK2)),difference(sK1,union(sK0,sK2))) ),
    inference(resolution,[],[f69,f65]) ).

fof(f65,plain,
    ! [X0,X1] :
      ( equal_set(X0,X1)
      | ~ subset(X0,X1)
      | ~ subset(X1,X0) ),
    inference(cnf_transformation,[],[f34]) ).

fof(f34,plain,
    ! [X0,X1] :
      ( equal_set(X0,X1)
      | ~ subset(X0,X1)
      | ~ subset(X1,X0) ),
    inference(rectify,[],[f31]) ).

fof(f31,plain,
    ! [X1,X0] :
      ( equal_set(X1,X0)
      | ~ subset(X1,X0)
      | ~ subset(X0,X1) ),
    inference(flattening,[],[f30]) ).

fof(f30,plain,
    ! [X0,X1] :
      ( equal_set(X1,X0)
      | ~ subset(X1,X0)
      | ~ subset(X0,X1) ),
    inference(ennf_transformation,[],[f25]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( ( subset(X1,X0)
        & subset(X0,X1) )
     => equal_set(X1,X0) ),
    inference(unused_predicate_definition_removal,[],[f14]) ).

fof(f14,plain,
    ! [X0,X1] :
      ( equal_set(X1,X0)
    <=> ( subset(X1,X0)
        & subset(X0,X1) ) ),
    inference(rectify,[],[f2]) ).

fof(f2,axiom,
    ! [X1,X0] :
      ( equal_set(X0,X1)
    <=> ( subset(X0,X1)
        & subset(X1,X0) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',equal_set) ).

fof(f69,plain,
    ~ equal_set(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2))),
    inference(cnf_transformation,[],[f38]) ).

fof(f38,plain,
    ( subset(sK0,sK1)
    & ~ equal_set(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2)))
    & subset(sK2,sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f36,f37]) ).

fof(f37,plain,
    ( ? [X0,X1,X2] :
        ( subset(X0,X1)
        & ~ equal_set(difference(X1,union(X0,X2)),intersection(difference(X1,X0),difference(X1,X2)))
        & subset(X2,X1) )
   => ( subset(sK0,sK1)
      & ~ equal_set(difference(sK1,union(sK0,sK2)),intersection(difference(sK1,sK0),difference(sK1,sK2)))
      & subset(sK2,sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f36,plain,
    ? [X0,X1,X2] :
      ( subset(X0,X1)
      & ~ equal_set(difference(X1,union(X0,X2)),intersection(difference(X1,X0),difference(X1,X2)))
      & subset(X2,X1) ),
    inference(rectify,[],[f27]) ).

fof(f27,plain,
    ? [X2,X0,X1] :
      ( subset(X2,X0)
      & ~ equal_set(difference(X0,union(X2,X1)),intersection(difference(X0,X2),difference(X0,X1)))
      & subset(X1,X0) ),
    inference(flattening,[],[f26]) ).

fof(f26,plain,
    ? [X0,X1,X2] :
      ( ~ equal_set(difference(X0,union(X2,X1)),intersection(difference(X0,X2),difference(X0,X1)))
      & subset(X1,X0)
      & subset(X2,X0) ),
    inference(ennf_transformation,[],[f20]) ).

fof(f20,plain,
    ~ ! [X0,X1,X2] :
        ( ( subset(X1,X0)
          & subset(X2,X0) )
       => equal_set(difference(X0,union(X2,X1)),intersection(difference(X0,X2),difference(X0,X1))) ),
    inference(rectify,[],[f13]) ).

fof(f13,negated_conjecture,
    ~ ! [X3,X1,X0] :
        ( ( subset(X0,X3)
          & subset(X1,X3) )
       => equal_set(difference(X3,union(X0,X1)),intersection(difference(X3,X0),difference(X3,X1))) ),
    inference(negated_conjecture,[],[f12]) ).

fof(f12,conjecture,
    ! [X3,X1,X0] :
      ( ( subset(X0,X3)
        & subset(X1,X3) )
     => equal_set(difference(X3,union(X0,X1)),intersection(difference(X3,X0),difference(X3,X1))) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',thI26) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem    : SET155+4 : TPTP v8.1.0. Released v2.2.0.
% 0.07/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.12/0.34  % Computer : n014.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit   : 300
% 0.12/0.34  % WCLimit    : 300
% 0.12/0.34  % DateTime   : Tue Aug 30 13:24:03 EDT 2022
% 0.12/0.34  % CPUTime    : 
% 0.19/0.44  % (24328)lrs+10_5:1_br=off:fde=none:nwc=3.0:sd=1:sgt=10:sos=on:ss=axioms:urr=on:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.19/0.50  % (24351)lrs+1011_1:1_fd=preordered:fsd=on:sos=on:thsq=on:thsqc=64:thsqd=32:uwa=ground:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/99Mi)
% 0.19/0.51  % (24343)ott+1010_1:1_sd=2:sos=on:sp=occurrence:ss=axioms:urr=on:i=2:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/2Mi)
% 0.19/0.53  % (24343)Instruction limit reached!
% 0.19/0.53  % (24343)------------------------------
% 0.19/0.53  % (24343)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.53  % (24343)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.53  % (24343)Termination reason: Unknown
% 0.19/0.53  % (24343)Termination phase: Saturation
% 0.19/0.53  
% 0.19/0.53  % (24343)Memory used [KB]: 5884
% 0.19/0.53  % (24343)Time elapsed: 0.146 s
% 0.19/0.53  % (24343)Instructions burned: 2 (million)
% 0.19/0.53  % (24343)------------------------------
% 0.19/0.53  % (24343)------------------------------
% 0.19/0.53  % (24336)lrs+10_1:2_br=off:nm=4:ss=included:urr=on:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.19/0.53  % (24351)First to succeed.
% 0.19/0.54  % (24336)Refutation not found, incomplete strategy% (24336)------------------------------
% 0.19/0.54  % (24336)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.54  % (24351)Refutation found. Thanks to Tanya!
% 0.19/0.54  % SZS status Theorem for theBenchmark
% 0.19/0.54  % SZS output start Proof for theBenchmark
% See solution above
% 0.19/0.54  % (24351)------------------------------
% 0.19/0.54  % (24351)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.54  % (24351)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.54  % (24351)Termination reason: Refutation
% 0.19/0.54  
% 0.19/0.54  % (24351)Memory used [KB]: 6268
% 0.19/0.54  % (24351)Time elapsed: 0.140 s
% 0.19/0.54  % (24351)Instructions burned: 10 (million)
% 0.19/0.54  % (24351)------------------------------
% 0.19/0.54  % (24351)------------------------------
% 0.19/0.54  % (24324)Success in time 0.189 s
%------------------------------------------------------------------------------