TSTP Solution File: SET637+3 by Vampire-SAT---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire-SAT---4.8
% Problem  : SET637+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s

% Computer : n025.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 Apr 30 15:08:59 EDT 2024

% Result   : Theorem 0.15s 0.39s
% Output   : Refutation 0.15s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   13
% Syntax   : Number of formulae    :  181 (  17 unt;   0 def)
%            Number of atoms       :  459 (  92 equ)
%            Maximal formula atoms :   10 (   2 avg)
%            Number of connectives :  437 ( 159   ~; 234   |;  30   &)
%                                         (   9 <=>;   4  =>;   0  <=;   1 <~>)
%            Maximal formula depth :    9 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    7 (   5 usr;   3 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :  390 ( 377   !;  13   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f400,plain,
    $false,
    inference(avatar_sat_refutation,[],[f56,f325,f331,f399]) ).

fof(f399,plain,
    ( ~ spl4_1
    | spl4_2 ),
    inference(avatar_contradiction_clause,[],[f398]) ).

fof(f398,plain,
    ( $false
    | ~ spl4_1
    | spl4_2 ),
    inference(subsumption_resolution,[],[f397,f335]) ).

fof(f335,plain,
    ( intersect(sK1,sK0)
    | ~ spl4_1 ),
    inference(resolution,[],[f51,f31]) ).

fof(f31,plain,
    ! [X0,X1] :
      ( ~ intersect(X0,X1)
      | intersect(X1,X0) ),
    inference(cnf_transformation,[],[f12]) ).

fof(f12,plain,
    ! [X0,X1] :
      ( intersect(X1,X0)
      | ~ intersect(X0,X1) ),
    inference(ennf_transformation,[],[f7]) ).

fof(f7,axiom,
    ! [X0,X1] :
      ( intersect(X0,X1)
     => intersect(X1,X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',symmetry_of_intersect) ).

fof(f51,plain,
    ( intersect(sK0,sK1)
    | ~ spl4_1 ),
    inference(avatar_component_clause,[],[f49]) ).

fof(f49,plain,
    ( spl4_1
  <=> intersect(sK0,sK1) ),
    introduced(avatar_definition,[new_symbols(naming,[spl4_1])]) ).

fof(f397,plain,
    ( ~ intersect(sK1,sK0)
    | spl4_2 ),
    inference(duplicate_literal_removal,[],[f394]) ).

fof(f394,plain,
    ( ~ intersect(sK1,sK0)
    | ~ intersect(sK1,sK0)
    | spl4_2 ),
    inference(resolution,[],[f386,f39]) ).

fof(f39,plain,
    ! [X0,X1] :
      ( member(sK3(X0,X1),X1)
      | ~ intersect(X0,X1) ),
    inference(cnf_transformation,[],[f24]) ).

fof(f24,plain,
    ! [X0,X1] :
      ( ( intersect(X0,X1)
        | ! [X2] :
            ( ~ member(X2,X1)
            | ~ member(X2,X0) ) )
      & ( ( member(sK3(X0,X1),X1)
          & member(sK3(X0,X1),X0) )
        | ~ intersect(X0,X1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3])],[f22,f23]) ).

fof(f23,plain,
    ! [X0,X1] :
      ( ? [X3] :
          ( member(X3,X1)
          & member(X3,X0) )
     => ( member(sK3(X0,X1),X1)
        & member(sK3(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f22,plain,
    ! [X0,X1] :
      ( ( intersect(X0,X1)
        | ! [X2] :
            ( ~ member(X2,X1)
            | ~ member(X2,X0) ) )
      & ( ? [X3] :
            ( member(X3,X1)
            & member(X3,X0) )
        | ~ intersect(X0,X1) ) ),
    inference(rectify,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1] :
      ( ( intersect(X0,X1)
        | ! [X2] :
            ( ~ member(X2,X1)
            | ~ member(X2,X0) ) )
      & ( ? [X2] :
            ( member(X2,X1)
            & member(X2,X0) )
        | ~ intersect(X0,X1) ) ),
    inference(nnf_transformation,[],[f2]) ).

fof(f2,axiom,
    ! [X0,X1] :
      ( intersect(X0,X1)
    <=> ? [X2] :
          ( member(X2,X1)
          & member(X2,X0) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',intersect_defn) ).

fof(f386,plain,
    ( ! [X0] :
        ( ~ member(sK3(sK1,X0),sK0)
        | ~ intersect(sK1,X0) )
    | spl4_2 ),
    inference(resolution,[],[f360,f38]) ).

fof(f38,plain,
    ! [X0,X1] :
      ( member(sK3(X0,X1),X0)
      | ~ intersect(X0,X1) ),
    inference(cnf_transformation,[],[f24]) ).

fof(f360,plain,
    ( ! [X0] :
        ( ~ member(X0,sK1)
        | ~ member(X0,sK0) )
    | spl4_2 ),
    inference(subsumption_resolution,[],[f349,f29]) ).

fof(f29,plain,
    ! [X0] : ~ member(X0,empty_set),
    inference(cnf_transformation,[],[f3]) ).

fof(f3,axiom,
    ! [X0] : ~ member(X0,empty_set),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',empty_set_defn) ).

fof(f349,plain,
    ( ! [X0] :
        ( member(X0,empty_set)
        | ~ member(X0,sK1)
        | ~ member(X0,sK0) )
    | spl4_2 ),
    inference(superposition,[],[f43,f342]) ).

fof(f342,plain,
    ( empty_set = intersection(sK0,sK1)
    | spl4_2 ),
    inference(resolution,[],[f54,f37]) ).

fof(f37,plain,
    ! [X0,X1] :
      ( not_equal(X0,X1)
      | X0 = X1 ),
    inference(cnf_transformation,[],[f20]) ).

fof(f20,plain,
    ! [X0,X1] :
      ( ( not_equal(X0,X1)
        | X0 = X1 )
      & ( X0 != X1
        | ~ not_equal(X0,X1) ) ),
    inference(nnf_transformation,[],[f5]) ).

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

fof(f54,plain,
    ( ~ not_equal(intersection(sK0,sK1),empty_set)
    | spl4_2 ),
    inference(avatar_component_clause,[],[f53]) ).

fof(f53,plain,
    ( spl4_2
  <=> not_equal(intersection(sK0,sK1),empty_set) ),
    introduced(avatar_definition,[new_symbols(naming,[spl4_2])]) ).

fof(f43,plain,
    ! [X2,X0,X1] :
      ( member(X2,intersection(X0,X1))
      | ~ member(X2,X1)
      | ~ member(X2,X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f26,plain,
    ! [X0,X1,X2] :
      ( ( member(X2,intersection(X0,X1))
        | ~ member(X2,X1)
        | ~ member(X2,X0) )
      & ( ( member(X2,X1)
          & member(X2,X0) )
        | ~ member(X2,intersection(X0,X1)) ) ),
    inference(flattening,[],[f25]) ).

fof(f25,plain,
    ! [X0,X1,X2] :
      ( ( member(X2,intersection(X0,X1))
        | ~ member(X2,X1)
        | ~ member(X2,X0) )
      & ( ( member(X2,X1)
          & member(X2,X0) )
        | ~ member(X2,intersection(X0,X1)) ) ),
    inference(nnf_transformation,[],[f1]) ).

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

fof(f331,plain,
    ( ~ spl4_1
    | ~ spl4_2 ),
    inference(avatar_contradiction_clause,[],[f330]) ).

fof(f330,plain,
    ( $false
    | ~ spl4_1
    | ~ spl4_2 ),
    inference(global_subsumption,[],[f28,f29,f46,f31,f37,f27,f55,f30,f38,f57,f39,f58,f41,f61,f62,f42,f63,f64,f40,f43,f71,f67,f76,f78,f68,f81,f82,f59,f87,f88,f89,f90,f91,f86,f95,f34,f97,f98,f99,f101,f102,f103,f94,f96,f108,f109,f100,f112,f113,f114,f93,f116,f115,f92,f120,f119,f110,f132,f127,f35,f137,f131,f150,f151,f146,f153,f154,f156,f157,f147,f148,f181,f183,f186,f187,f188,f189,f191,f192,f182,f203,f204,f205,f206,f149,f212,f215,f216,f217,f218,f220,f221,f60,f237,f229,f230,f231,f232,f233,f236,f242,f244,f247,f246,f251,f252,f253,f211,f262,f263,f266,f267,f268,f269,f250,f275,f277,f278,f281,f282,f283,f284,f329,f51]) ).

fof(f329,plain,
    ( ~ intersect(sK0,sK1)
    | ~ spl4_2 ),
    inference(subsumption_resolution,[],[f28,f55]) ).

fof(f284,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X1,X0) ),
    inference(resolution,[],[f250,f93]) ).

fof(f283,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X2,X0) ),
    inference(resolution,[],[f250,f115]) ).

fof(f282,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X1,intersection(X1,X2)) ),
    inference(resolution,[],[f250,f92]) ).

fof(f281,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X2,intersection(X2,X1)) ),
    inference(resolution,[],[f250,f119]) ).

fof(f278,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X0,X2) ),
    inference(resolution,[],[f250,f236]) ).

fof(f277,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X1,X2) ),
    inference(resolution,[],[f250,f246]) ).

fof(f275,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | intersect(X0,X1) ),
    inference(resolution,[],[f250,f31]) ).

fof(f250,plain,
    ! [X0,X1] :
      ( intersect(X0,X1)
      | empty_set = intersection(X1,X0) ),
    inference(resolution,[],[f246,f149]) ).

fof(f269,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(resolution,[],[f211,f93]) ).

fof(f268,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X1,intersection(X0,X1)) ),
    inference(resolution,[],[f211,f115]) ).

fof(f267,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(resolution,[],[f211,f92]) ).

fof(f266,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X1,intersection(X1,X0)) ),
    inference(resolution,[],[f211,f119]) ).

fof(f263,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(resolution,[],[f211,f236]) ).

fof(f262,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X1,intersection(X0,X1)) ),
    inference(resolution,[],[f211,f246]) ).

fof(f211,plain,
    ! [X0,X1] :
      ( intersect(X0,X0)
      | intersection(X0,X1) = empty_set ),
    inference(resolution,[],[f149,f78]) ).

fof(f253,plain,
    ! [X0,X1] :
      ( intersect(X0,intersection(X1,X0))
      | empty_set = intersection(X1,X0) ),
    inference(resolution,[],[f246,f131]) ).

fof(f252,plain,
    ! [X2,X0,X1] :
      ( intersect(X0,intersection(X1,X0))
      | empty_set = intersection(X2,intersection(X1,X0)) ),
    inference(resolution,[],[f246,f182]) ).

fof(f251,plain,
    ! [X0,X1] :
      ( intersect(X0,X1)
      | intersection(X0,X1) = empty_set ),
    inference(resolution,[],[f246,f148]) ).

fof(f246,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(X2,intersection(X1,X0))
      | intersect(X0,X2) ),
    inference(superposition,[],[f236,f30]) ).

fof(f247,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(X2,intersection(X1,X0))
      | intersect(X0,X2) ),
    inference(superposition,[],[f236,f30]) ).

fof(f244,plain,
    ! [X2,X0,X1] :
      ( intersect(X0,intersection(X0,X1))
      | empty_set = intersection(X2,intersection(X0,X1)) ),
    inference(resolution,[],[f236,f182]) ).

fof(f242,plain,
    ! [X0,X1] :
      ( intersect(X0,X0)
      | intersection(X0,X1) = empty_set ),
    inference(resolution,[],[f236,f149]) ).

fof(f236,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(X0,intersection(X1,X2))
      | intersect(X1,X0) ),
    inference(duplicate_literal_removal,[],[f227]) ).

fof(f227,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(X0,intersection(X1,X2))
      | intersect(X1,X0)
      | ~ intersect(X0,intersection(X1,X2)) ),
    inference(resolution,[],[f60,f67]) ).

fof(f233,plain,
    ! [X2,X0,X1] :
      ( member(sK3(X2,intersection(X1,X0)),X0)
      | ~ intersect(X2,intersection(X0,X1)) ),
    inference(superposition,[],[f60,f30]) ).

fof(f232,plain,
    ! [X2,X0,X1] :
      ( member(sK3(X2,intersection(X1,X0)),X0)
      | ~ intersect(X2,intersection(X0,X1)) ),
    inference(superposition,[],[f60,f30]) ).

fof(f231,plain,
    ! [X2,X3,X0,X1] :
      ( ~ intersect(X0,intersection(X1,X2))
      | intersect(X3,X1)
      | ~ member(sK3(X0,intersection(X1,X2)),X3) ),
    inference(resolution,[],[f60,f40]) ).

fof(f230,plain,
    ! [X2,X3,X0,X1] :
      ( ~ intersect(X0,intersection(intersection(X1,X2),X3))
      | member(sK3(X0,intersection(intersection(X1,X2),X3)),X1) ),
    inference(resolution,[],[f60,f41]) ).

fof(f229,plain,
    ! [X2,X3,X0,X1] :
      ( ~ intersect(X0,intersection(intersection(X1,X2),X3))
      | member(sK3(X0,intersection(intersection(X1,X2),X3)),X2) ),
    inference(resolution,[],[f60,f42]) ).

fof(f237,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(X0,intersection(X1,X2))
      | intersect(X1,intersection(X1,X2)) ),
    inference(duplicate_literal_removal,[],[f226]) ).

fof(f226,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(X0,intersection(X1,X2))
      | intersect(X1,intersection(X1,X2))
      | ~ intersect(X0,intersection(X1,X2)) ),
    inference(resolution,[],[f60,f68]) ).

fof(f60,plain,
    ! [X2,X0,X1] :
      ( member(sK3(X0,intersection(X1,X2)),X1)
      | ~ intersect(X0,intersection(X1,X2)) ),
    inference(resolution,[],[f41,f39]) ).

fof(f221,plain,
    ! [X0,X1] :
      ( intersect(X0,intersection(X1,X0))
      | intersection(X0,X1) = empty_set ),
    inference(superposition,[],[f149,f30]) ).

fof(f220,plain,
    ! [X0,X1] :
      ( intersect(X0,intersection(X1,X0))
      | intersection(X0,X1) = empty_set ),
    inference(superposition,[],[f149,f30]) ).

fof(f218,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X0,intersection(intersection(X0,X1),X2)) ),
    inference(resolution,[],[f149,f93]) ).

fof(f217,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X1,intersection(intersection(X0,X1),X2)) ),
    inference(resolution,[],[f149,f115]) ).

fof(f216,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(resolution,[],[f149,f92]) ).

fof(f215,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(intersection(X0,X1),X2)
      | intersect(X1,intersection(X1,X0)) ),
    inference(resolution,[],[f149,f119]) ).

fof(f212,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | intersect(intersection(X0,X1),X0) ),
    inference(resolution,[],[f149,f31]) ).

fof(f149,plain,
    ! [X0,X1] :
      ( intersect(X0,intersection(X0,X1))
      | intersection(X0,X1) = empty_set ),
    inference(resolution,[],[f131,f92]) ).

fof(f206,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X1,intersection(X1,X2)) ),
    inference(resolution,[],[f182,f93]) ).

fof(f205,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X2,intersection(X1,X2)) ),
    inference(resolution,[],[f182,f115]) ).

fof(f204,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X1,intersection(X1,X2)) ),
    inference(resolution,[],[f182,f92]) ).

fof(f203,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X2,intersection(X2,X1)) ),
    inference(resolution,[],[f182,f119]) ).

fof(f182,plain,
    ! [X0,X1] :
      ( intersect(X1,X1)
      | intersection(X0,X1) = empty_set ),
    inference(resolution,[],[f148,f78]) ).

fof(f192,plain,
    ! [X0,X1] :
      ( intersect(X0,intersection(X1,X0))
      | empty_set = intersection(X1,X0) ),
    inference(superposition,[],[f148,f30]) ).

fof(f191,plain,
    ! [X0,X1] :
      ( intersect(X0,intersection(X1,X0))
      | empty_set = intersection(X1,X0) ),
    inference(superposition,[],[f148,f30]) ).

fof(f189,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X1,intersection(intersection(X1,X2),X0)) ),
    inference(resolution,[],[f148,f93]) ).

fof(f188,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X2,intersection(intersection(X1,X2),X0)) ),
    inference(resolution,[],[f148,f115]) ).

fof(f187,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X1,intersection(X1,X2)) ),
    inference(resolution,[],[f148,f92]) ).

fof(f186,plain,
    ! [X2,X0,X1] :
      ( empty_set = intersection(X0,intersection(X1,X2))
      | intersect(X2,intersection(X2,X1)) ),
    inference(resolution,[],[f148,f119]) ).

fof(f183,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | intersect(intersection(X1,X0),X1) ),
    inference(resolution,[],[f148,f31]) ).

fof(f181,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | intersect(intersection(X1,X0),intersection(X1,X0)) ),
    inference(resolution,[],[f148,f82]) ).

fof(f148,plain,
    ! [X0,X1] :
      ( intersect(X1,intersection(X1,X0))
      | intersection(X0,X1) = empty_set ),
    inference(resolution,[],[f131,f119]) ).

fof(f147,plain,
    ! [X0] : empty_set = intersection(X0,empty_set),
    inference(resolution,[],[f131,f94]) ).

fof(f157,plain,
    ! [X0] : empty_set = intersection(X0,empty_set),
    inference(superposition,[],[f30,f146]) ).

fof(f156,plain,
    ! [X0] : empty_set = intersection(X0,empty_set),
    inference(superposition,[],[f30,f146]) ).

fof(f154,plain,
    ! [X0] : empty_set = intersection(X0,empty_set),
    inference(superposition,[],[f146,f30]) ).

fof(f153,plain,
    ! [X0] : empty_set = intersection(X0,empty_set),
    inference(superposition,[],[f146,f30]) ).

fof(f146,plain,
    ! [X0] : empty_set = intersection(empty_set,X0),
    inference(resolution,[],[f131,f86]) ).

fof(f151,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | intersect(X0,intersection(X0,X1)) ),
    inference(resolution,[],[f131,f93]) ).

fof(f150,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | intersect(X1,intersection(X0,X1)) ),
    inference(resolution,[],[f131,f115]) ).

fof(f131,plain,
    ! [X0] :
      ( intersect(X0,X0)
      | empty_set = X0 ),
    inference(duplicate_literal_removal,[],[f123]) ).

fof(f123,plain,
    ! [X0] :
      ( intersect(X0,X0)
      | empty_set = X0
      | empty_set = X0 ),
    inference(resolution,[],[f110,f96]) ).

fof(f137,plain,
    ! [X2,X0,X1] :
      ( intersection(X1,X2) = X0
      | ~ member(sK2(X0,intersection(X1,X2)),X0)
      | ~ member(sK2(X0,intersection(X1,X2)),X2)
      | ~ member(sK2(X0,intersection(X1,X2)),X1) ),
    inference(resolution,[],[f35,f43]) ).

fof(f35,plain,
    ! [X0,X1] :
      ( ~ member(sK2(X0,X1),X1)
      | X0 = X1
      | ~ member(sK2(X0,X1),X0) ),
    inference(cnf_transformation,[],[f19]) ).

fof(f19,plain,
    ! [X0,X1] :
      ( ( X0 = X1
        | ( ( ~ member(sK2(X0,X1),X1)
            | ~ member(sK2(X0,X1),X0) )
          & ( member(sK2(X0,X1),X1)
            | member(sK2(X0,X1),X0) ) ) )
      & ( ! [X3] :
            ( ( member(X3,X0)
              | ~ member(X3,X1) )
            & ( member(X3,X1)
              | ~ member(X3,X0) ) )
        | X0 != X1 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2])],[f17,f18]) ).

fof(f18,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ( ~ member(X2,X1)
            | ~ member(X2,X0) )
          & ( member(X2,X1)
            | member(X2,X0) ) )
     => ( ( ~ member(sK2(X0,X1),X1)
          | ~ member(sK2(X0,X1),X0) )
        & ( member(sK2(X0,X1),X1)
          | member(sK2(X0,X1),X0) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f17,plain,
    ! [X0,X1] :
      ( ( X0 = X1
        | ? [X2] :
            ( ( ~ member(X2,X1)
              | ~ member(X2,X0) )
            & ( member(X2,X1)
              | member(X2,X0) ) ) )
      & ( ! [X3] :
            ( ( member(X3,X0)
              | ~ member(X3,X1) )
            & ( member(X3,X1)
              | ~ member(X3,X0) ) )
        | X0 != X1 ) ),
    inference(rectify,[],[f16]) ).

fof(f16,plain,
    ! [X0,X1] :
      ( ( X0 = X1
        | ? [X2] :
            ( ( ~ member(X2,X1)
              | ~ member(X2,X0) )
            & ( member(X2,X1)
              | member(X2,X0) ) ) )
      & ( ! [X2] :
            ( ( member(X2,X0)
              | ~ member(X2,X1) )
            & ( member(X2,X1)
              | ~ member(X2,X0) ) )
        | X0 != X1 ) ),
    inference(nnf_transformation,[],[f4]) ).

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

fof(f127,plain,
    ! [X2,X0,X1] :
      ( intersect(intersection(X0,X1),X2)
      | empty_set = X2
      | ~ member(sK2(X2,empty_set),X1)
      | ~ member(sK2(X2,empty_set),X0) ),
    inference(resolution,[],[f110,f43]) ).

fof(f132,plain,
    ! [X0] :
      ( intersect(X0,X0)
      | empty_set = X0 ),
    inference(subsumption_resolution,[],[f129,f29]) ).

fof(f129,plain,
    ! [X0] :
      ( intersect(X0,X0)
      | empty_set = X0
      | member(sK2(X0,empty_set),empty_set) ),
    inference(duplicate_literal_removal,[],[f125]) ).

fof(f125,plain,
    ! [X0] :
      ( intersect(X0,X0)
      | empty_set = X0
      | member(sK2(X0,empty_set),empty_set)
      | empty_set = X0 ),
    inference(resolution,[],[f110,f34]) ).

fof(f110,plain,
    ! [X0,X1] :
      ( ~ member(sK2(X0,empty_set),X1)
      | intersect(X1,X0)
      | empty_set = X0 ),
    inference(resolution,[],[f96,f40]) ).

fof(f119,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X1,X0),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(superposition,[],[f92,f30]) ).

fof(f120,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X1,X0),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(superposition,[],[f92,f30]) ).

fof(f92,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X0,X1),X2)
      | intersect(X0,intersection(X0,X1)) ),
    inference(duplicate_literal_removal,[],[f85]) ).

fof(f85,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X0,X1),X2)
      | intersect(X0,intersection(X0,X1))
      | ~ intersect(intersection(X0,X1),X2) ),
    inference(resolution,[],[f59,f67]) ).

fof(f115,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X1,X0),X2)
      | intersect(X0,X2) ),
    inference(superposition,[],[f93,f30]) ).

fof(f116,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X1,X0),X2)
      | intersect(X0,X2) ),
    inference(superposition,[],[f93,f30]) ).

fof(f93,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X0,X1),X2)
      | intersect(X0,X2) ),
    inference(duplicate_literal_removal,[],[f84]) ).

fof(f84,plain,
    ! [X2,X0,X1] :
      ( ~ intersect(intersection(X0,X1),X2)
      | intersect(X0,X2)
      | ~ intersect(intersection(X0,X1),X2) ),
    inference(resolution,[],[f59,f68]) ).

fof(f114,plain,
    ! [X0,X1] :
      ( empty_set = X0
      | intersect(X1,X0)
      | ~ member(sK2(empty_set,X0),X1) ),
    inference(resolution,[],[f100,f40]) ).

fof(f113,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | member(sK2(empty_set,intersection(X0,X1)),X0) ),
    inference(resolution,[],[f100,f41]) ).

fof(f112,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | member(sK2(empty_set,intersection(X0,X1)),X1) ),
    inference(resolution,[],[f100,f42]) ).

fof(f100,plain,
    ! [X0] :
      ( member(sK2(empty_set,X0),X0)
      | empty_set = X0 ),
    inference(resolution,[],[f34,f29]) ).

fof(f109,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | member(sK2(intersection(X0,X1),empty_set),X0) ),
    inference(resolution,[],[f96,f41]) ).

fof(f108,plain,
    ! [X0,X1] :
      ( intersection(X0,X1) = empty_set
      | member(sK2(intersection(X0,X1),empty_set),X1) ),
    inference(resolution,[],[f96,f42]) ).

fof(f96,plain,
    ! [X0] :
      ( member(sK2(X0,empty_set),X0)
      | empty_set = X0 ),
    inference(resolution,[],[f34,f29]) ).

fof(f94,plain,
    ! [X0,X1] : ~ intersect(intersection(X0,empty_set),X1),
    inference(superposition,[],[f86,f30]) ).

fof(f103,plain,
    ! [X2,X0,X1] :
      ( member(sK2(X0,X1),X1)
      | X0 = X1
      | intersect(X2,X0)
      | ~ member(sK2(X0,X1),X2) ),
    inference(resolution,[],[f34,f40]) ).

fof(f102,plain,
    ! [X2,X0,X1] :
      ( member(sK2(intersection(X0,X1),X2),X2)
      | intersection(X0,X1) = X2
      | member(sK2(intersection(X0,X1),X2),X0) ),
    inference(resolution,[],[f34,f41]) ).

fof(f101,plain,
    ! [X2,X0,X1] :
      ( member(sK2(intersection(X0,X1),X2),X2)
      | intersection(X0,X1) = X2
      | member(sK2(intersection(X0,X1),X2),X1) ),
    inference(resolution,[],[f34,f42]) ).

fof(f99,plain,
    ! [X2,X0,X1] :
      ( member(sK2(X0,X1),X0)
      | X0 = X1
      | intersect(X2,X1)
      | ~ member(sK2(X0,X1),X2) ),
    inference(resolution,[],[f34,f40]) ).

fof(f98,plain,
    ! [X2,X0,X1] :
      ( member(sK2(X0,intersection(X1,X2)),X0)
      | intersection(X1,X2) = X0
      | member(sK2(X0,intersection(X1,X2)),X1) ),
    inference(resolution,[],[f34,f41]) ).

fof(f97,plain,
    ! [X2,X0,X1] :
      ( member(sK2(X0,intersection(X1,X2)),X0)
      | intersection(X1,X2) = X0
      | member(sK2(X0,intersection(X1,X2)),X2) ),
    inference(resolution,[],[f34,f42]) ).

fof(f34,plain,
    ! [X0,X1] :
      ( member(sK2(X0,X1),X1)
      | member(sK2(X0,X1),X0)
      | X0 = X1 ),
    inference(cnf_transformation,[],[f19]) ).

fof(f95,plain,
    ! [X0,X1] : ~ intersect(intersection(X0,empty_set),X1),
    inference(superposition,[],[f86,f30]) ).

fof(f86,plain,
    ! [X0,X1] : ~ intersect(intersection(empty_set,X0),X1),
    inference(resolution,[],[f59,f29]) ).

fof(f91,plain,
    ! [X2,X0,X1] :
      ( member(sK3(intersection(X1,X0),X2),X0)
      | ~ intersect(intersection(X0,X1),X2) ),
    inference(superposition,[],[f59,f30]) ).

fof(f90,plain,
    ! [X2,X0,X1] :
      ( member(sK3(intersection(X1,X0),X2),X0)
      | ~ intersect(intersection(X0,X1),X2) ),
    inference(superposition,[],[f59,f30]) ).

fof(f89,plain,
    ! [X2,X3,X0,X1] :
      ( ~ intersect(intersection(X0,X1),X2)
      | intersect(X3,X0)
      | ~ member(sK3(intersection(X0,X1),X2),X3) ),
    inference(resolution,[],[f59,f40]) ).

fof(f88,plain,
    ! [X2,X3,X0,X1] :
      ( ~ intersect(intersection(intersection(X0,X1),X2),X3)
      | member(sK3(intersection(intersection(X0,X1),X2),X3),X0) ),
    inference(resolution,[],[f59,f41]) ).

fof(f87,plain,
    ! [X2,X3,X0,X1] :
      ( ~ intersect(intersection(intersection(X0,X1),X2),X3)
      | member(sK3(intersection(intersection(X0,X1),X2),X3),X1) ),
    inference(resolution,[],[f59,f42]) ).

fof(f59,plain,
    ! [X2,X0,X1] :
      ( member(sK3(intersection(X0,X1),X2),X0)
      | ~ intersect(intersection(X0,X1),X2) ),
    inference(resolution,[],[f41,f38]) ).

fof(f82,plain,
    ! [X0,X1] :
      ( ~ intersect(X1,X0)
      | intersect(X0,X0) ),
    inference(duplicate_literal_removal,[],[f80]) ).

fof(f80,plain,
    ! [X0,X1] :
      ( intersect(X0,X0)
      | ~ intersect(X1,X0)
      | ~ intersect(X1,X0) ),
    inference(resolution,[],[f68,f39]) ).

fof(f81,plain,
    ! [X2,X3,X0,X1] :
      ( intersect(intersection(X0,X1),X2)
      | ~ intersect(X3,X2)
      | ~ member(sK3(X3,X2),X1)
      | ~ member(sK3(X3,X2),X0) ),
    inference(resolution,[],[f68,f43]) ).

fof(f68,plain,
    ! [X2,X0,X1] :
      ( ~ member(sK3(X2,X1),X0)
      | intersect(X0,X1)
      | ~ intersect(X2,X1) ),
    inference(resolution,[],[f40,f39]) ).

fof(f78,plain,
    ! [X0,X1] :
      ( ~ intersect(X0,X1)
      | intersect(X0,X0) ),
    inference(duplicate_literal_removal,[],[f74]) ).

fof(f74,plain,
    ! [X0,X1] :
      ( intersect(X0,X0)
      | ~ intersect(X0,X1)
      | ~ intersect(X0,X1) ),
    inference(resolution,[],[f67,f38]) ).

fof(f76,plain,
    ! [X2,X3,X0,X1] :
      ( intersect(intersection(X0,X1),X2)
      | ~ intersect(X2,X3)
      | ~ member(sK3(X2,X3),X1)
      | ~ member(sK3(X2,X3),X0) ),
    inference(resolution,[],[f67,f43]) ).

fof(f67,plain,
    ! [X2,X0,X1] :
      ( ~ member(sK3(X1,X2),X0)
      | intersect(X0,X1)
      | ~ intersect(X1,X2) ),
    inference(resolution,[],[f40,f38]) ).

fof(f71,plain,
    ! [X2,X3,X0,X1] :
      ( ~ member(X0,X1)
      | ~ member(X0,X2)
      | intersect(X3,intersection(X2,X1))
      | ~ member(X0,X3) ),
    inference(resolution,[],[f43,f40]) ).

fof(f40,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,X1)
      | intersect(X0,X1)
      | ~ member(X2,X0) ),
    inference(cnf_transformation,[],[f24]) ).

fof(f64,plain,
    ! [X2,X0,X1] :
      ( member(sK3(X0,intersection(X1,X2)),X2)
      | ~ intersect(X0,intersection(X1,X2)) ),
    inference(resolution,[],[f42,f39]) ).

fof(f63,plain,
    ! [X2,X0,X1] :
      ( member(sK3(intersection(X0,X1),X2),X1)
      | ~ intersect(intersection(X0,X1),X2) ),
    inference(resolution,[],[f42,f38]) ).

fof(f42,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,intersection(X0,X1))
      | member(X2,X1) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f62,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,intersection(X1,X0))
      | member(X2,X0) ),
    inference(superposition,[],[f41,f30]) ).

fof(f61,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,intersection(X1,X0))
      | member(X2,X0) ),
    inference(superposition,[],[f41,f30]) ).

fof(f41,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,intersection(X0,X1))
      | member(X2,X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f58,plain,
    ! [X0] : ~ intersect(X0,empty_set),
    inference(resolution,[],[f39,f29]) ).

fof(f57,plain,
    ! [X0] : ~ intersect(empty_set,X0),
    inference(resolution,[],[f38,f29]) ).

fof(f30,plain,
    ! [X0,X1] : intersection(X0,X1) = intersection(X1,X0),
    inference(cnf_transformation,[],[f6]) ).

fof(f6,axiom,
    ! [X0,X1] : intersection(X0,X1) = intersection(X1,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_intersection) ).

fof(f55,plain,
    ( not_equal(intersection(sK0,sK1),empty_set)
    | ~ spl4_2 ),
    inference(avatar_component_clause,[],[f53]) ).

fof(f27,plain,
    ( not_equal(intersection(sK0,sK1),empty_set)
    | intersect(sK0,sK1) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f15,plain,
    ( ( ~ not_equal(intersection(sK0,sK1),empty_set)
      | ~ intersect(sK0,sK1) )
    & ( not_equal(intersection(sK0,sK1),empty_set)
      | intersect(sK0,sK1) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f13,f14]) ).

fof(f14,plain,
    ( ? [X0,X1] :
        ( ( ~ not_equal(intersection(X0,X1),empty_set)
          | ~ intersect(X0,X1) )
        & ( not_equal(intersection(X0,X1),empty_set)
          | intersect(X0,X1) ) )
   => ( ( ~ not_equal(intersection(sK0,sK1),empty_set)
        | ~ intersect(sK0,sK1) )
      & ( not_equal(intersection(sK0,sK1),empty_set)
        | intersect(sK0,sK1) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f13,plain,
    ? [X0,X1] :
      ( ( ~ not_equal(intersection(X0,X1),empty_set)
        | ~ intersect(X0,X1) )
      & ( not_equal(intersection(X0,X1),empty_set)
        | intersect(X0,X1) ) ),
    inference(nnf_transformation,[],[f11]) ).

fof(f11,plain,
    ? [X0,X1] :
      ( intersect(X0,X1)
    <~> not_equal(intersection(X0,X1),empty_set) ),
    inference(ennf_transformation,[],[f10]) ).

fof(f10,negated_conjecture,
    ~ ! [X0,X1] :
        ( intersect(X0,X1)
      <=> not_equal(intersection(X0,X1),empty_set) ),
    inference(negated_conjecture,[],[f9]) ).

fof(f9,conjecture,
    ! [X0,X1] :
      ( intersect(X0,X1)
    <=> not_equal(intersection(X0,X1),empty_set) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_th119) ).

fof(f46,plain,
    ! [X1] : ~ not_equal(X1,X1),
    inference(equality_resolution,[],[f36]) ).

fof(f36,plain,
    ! [X0,X1] :
      ( X0 != X1
      | ~ not_equal(X0,X1) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f28,plain,
    ( ~ not_equal(intersection(sK0,sK1),empty_set)
    | ~ intersect(sK0,sK1) ),
    inference(cnf_transformation,[],[f15]) ).

fof(f325,plain,
    ( spl4_1
    | ~ spl4_2 ),
    inference(avatar_contradiction_clause,[],[f324]) ).

fof(f324,plain,
    ( $false
    | spl4_1
    | ~ spl4_2 ),
    inference(subsumption_resolution,[],[f310,f46]) ).

fof(f310,plain,
    ( not_equal(empty_set,empty_set)
    | spl4_1
    | ~ spl4_2 ),
    inference(superposition,[],[f55,f289]) ).

fof(f289,plain,
    ( empty_set = intersection(sK0,sK1)
    | spl4_1 ),
    inference(superposition,[],[f286,f30]) ).

fof(f286,plain,
    ( empty_set = intersection(sK1,sK0)
    | spl4_1 ),
    inference(resolution,[],[f250,f50]) ).

fof(f50,plain,
    ( ~ intersect(sK0,sK1)
    | spl4_1 ),
    inference(avatar_component_clause,[],[f49]) ).

fof(f56,plain,
    ( spl4_1
    | spl4_2 ),
    inference(avatar_split_clause,[],[f27,f53,f49]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.13  % Problem    : SET637+3 : TPTP v8.1.2. Released v2.2.0.
% 0.08/0.15  % Command    : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s
% 0.15/0.36  % Computer : n025.cluster.edu
% 0.15/0.36  % Model    : x86_64 x86_64
% 0.15/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.36  % Memory   : 8042.1875MB
% 0.15/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.36  % CPULimit   : 300
% 0.15/0.36  % WCLimit    : 300
% 0.15/0.36  % DateTime   : Tue Apr 30 01:49:41 EDT 2024
% 0.15/0.36  % CPUTime    : 
% 0.15/0.36  % (28555)Running in auto input_syntax mode. Trying TPTP
% 0.15/0.38  % (28558)WARNING: value z3 for option sas not known
% 0.15/0.38  % (28559)fmb+10_1_bce=on:fmbsr=1.5:nm=32_533 on theBenchmark for (533ds/0Mi)
% 0.15/0.38  % (28557)fmb+10_1_bce=on:fmbdsb=on:fmbes=contour:fmbswr=3:fde=none:nm=0_793 on theBenchmark for (793ds/0Mi)
% 0.15/0.38  % (28560)ott+10_10:1_add=off:afr=on:amm=off:anc=all:bd=off:bs=on:fsr=off:irw=on:lma=on:msp=off:nm=4:nwc=4.0:sac=on:sp=reverse_frequency_531 on theBenchmark for (531ds/0Mi)
% 0.15/0.38  % (28558)dis+2_11_add=large:afr=on:amm=off:bd=off:bce=on:fsd=off:fde=none:gs=on:gsaa=full_model:gsem=off:irw=on:msp=off:nm=4:nwc=1.3:sas=z3:sims=off:sac=on:sp=reverse_arity_569 on theBenchmark for (569ds/0Mi)
% 0.15/0.38  % (28556)fmb+10_1_bce=on:fmbas=function:fmbsr=1.2:fde=unused:nm=0_846 on theBenchmark for (846ds/0Mi)
% 0.15/0.38  % (28561)ott-10_8_av=off:bd=preordered:bs=on:fsd=off:fsr=off:fde=unused:irw=on:lcm=predicate:lma=on:nm=4:nwc=1.7:sp=frequency_522 on theBenchmark for (522ds/0Mi)
% 0.15/0.38  % (28562)ott+1_64_av=off:bd=off:bce=on:fsd=off:fde=unused:gsp=on:irw=on:lcm=predicate:lma=on:nm=2:nwc=1.1:sims=off:urr=on_497 on theBenchmark for (497ds/0Mi)
% 0.15/0.38  TRYING [1]
% 0.15/0.38  TRYING [2]
% 0.15/0.38  TRYING [3]
% 0.15/0.38  TRYING [4]
% 0.15/0.38  TRYING [1]
% 0.15/0.38  TRYING [2]
% 0.15/0.39  TRYING [5]
% 0.15/0.39  TRYING [3]
% 0.15/0.39  % (28558)First to succeed.
% 0.15/0.39  % (28558)Refutation found. Thanks to Tanya!
% 0.15/0.39  % SZS status Theorem for theBenchmark
% 0.15/0.39  % SZS output start Proof for theBenchmark
% See solution above
% 0.15/0.40  % (28558)------------------------------
% 0.15/0.40  % (28558)Version: Vampire 4.8 (commit 8e9376e55 on 2024-01-18 13:49:33 +0100)
% 0.15/0.40  % (28558)Termination reason: Refutation
% 0.15/0.40  
% 0.15/0.40  % (28558)Memory used [KB]: 904
% 0.15/0.40  % (28558)Time elapsed: 0.015 s
% 0.15/0.40  % (28558)Instructions burned: 21 (million)
% 0.15/0.40  % (28558)------------------------------
% 0.15/0.40  % (28558)------------------------------
% 0.15/0.40  % (28555)Success in time 0.032 s
%------------------------------------------------------------------------------