TSTP Solution File: SET612+3 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SET612+3 : 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_sat --cores 0 -t %d %s

% Computer : n007.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 18:25:05 EDT 2022

% Result   : Theorem 0.15s 0.45s
% Output   : Refutation 0.15s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   90 (  22 unt;   0 def)
%            Number of atoms       :  236 (  23 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  261 ( 115   ~;  98   |;  34   &)
%                                         (  10 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    4 (   2 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   3 con; 0-2 aty)
%            Number of variables   :  127 ( 115   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f189,plain,
    $false,
    inference(subsumption_resolution,[],[f188,f180]) ).

fof(f180,plain,
    ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK3),
    inference(resolution,[],[f177,f63]) ).

fof(f63,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,difference(X1,X0))
      | ~ member(X2,X0) ),
    inference(cnf_transformation,[],[f36]) ).

fof(f36,plain,
    ! [X0,X1,X2] :
      ( ( ( ~ member(X2,X0)
          & member(X2,X1) )
        | ~ member(X2,difference(X1,X0)) )
      & ( member(X2,difference(X1,X0))
        | member(X2,X0)
        | ~ member(X2,X1) ) ),
    inference(flattening,[],[f35]) ).

fof(f35,plain,
    ! [X0,X1,X2] :
      ( ( ( ~ member(X2,X0)
          & member(X2,X1) )
        | ~ member(X2,difference(X1,X0)) )
      & ( member(X2,difference(X1,X0))
        | member(X2,X0)
        | ~ member(X2,X1) ) ),
    inference(nnf_transformation,[],[f20]) ).

fof(f20,plain,
    ! [X0,X1,X2] :
      ( ( ~ member(X2,X0)
        & member(X2,X1) )
    <=> member(X2,difference(X1,X0)) ),
    inference(rectify,[],[f3]) ).

fof(f3,axiom,
    ! [X1,X0,X2] :
      ( ( member(X2,X0)
        & ~ member(X2,X1) )
    <=> member(X2,difference(X0,X1)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',difference_defn) ).

fof(f177,plain,
    member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,sK3)),
    inference(resolution,[],[f175,f57]) ).

fof(f57,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,intersection(X1,X0))
      | member(X2,X1) ),
    inference(cnf_transformation,[],[f33]) ).

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

fof(f32,plain,
    ! [X0,X1,X2] :
      ( ( ( 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,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1,X2] :
      ( ( member(X2,X0)
        & member(X2,X1) )
    <=> member(X2,intersection(X1,X0)) ),
    inference(rectify,[],[f2]) ).

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

fof(f175,plain,
    member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))),
    inference(subsumption_resolution,[],[f174,f124]) ).

fof(f124,plain,
    ( member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2)
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f117,f62]) ).

fof(f62,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,difference(X1,X0))
      | member(X2,X1) ),
    inference(cnf_transformation,[],[f36]) ).

fof(f117,plain,
    ( member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,union(sK3,sK4)))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f113,f69]) ).

fof(f69,plain,
    ! [X0,X1] :
      ( subset(X1,X0)
      | member(sK1(X0,X1),X1) ),
    inference(cnf_transformation,[],[f43]) ).

fof(f43,plain,
    ! [X0,X1] :
      ( ( subset(X1,X0)
        | ( member(sK1(X0,X1),X1)
          & ~ member(sK1(X0,X1),X0) ) )
      & ( ! [X3] :
            ( ~ member(X3,X1)
            | member(X3,X0) )
        | ~ subset(X1,X0) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f41,f42]) ).

fof(f42,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( member(X2,X1)
          & ~ member(X2,X0) )
     => ( member(sK1(X0,X1),X1)
        & ~ member(sK1(X0,X1),X0) ) ),
    introduced(choice_axiom,[]) ).

fof(f41,plain,
    ! [X0,X1] :
      ( ( subset(X1,X0)
        | ? [X2] :
            ( member(X2,X1)
            & ~ member(X2,X0) ) )
      & ( ! [X3] :
            ( ~ member(X3,X1)
            | member(X3,X0) )
        | ~ subset(X1,X0) ) ),
    inference(rectify,[],[f40]) ).

fof(f40,plain,
    ! [X0,X1] :
      ( ( subset(X1,X0)
        | ? [X2] :
            ( member(X2,X1)
            & ~ member(X2,X0) ) )
      & ( ! [X2] :
            ( ~ member(X2,X1)
            | member(X2,X0) )
        | ~ subset(X1,X0) ) ),
    inference(nnf_transformation,[],[f25]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( subset(X1,X0)
    <=> ! [X2] :
          ( ~ member(X2,X1)
          | member(X2,X0) ) ),
    inference(ennf_transformation,[],[f19]) ).

fof(f19,plain,
    ! [X1,X0] :
      ( ! [X2] :
          ( member(X2,X1)
         => member(X2,X0) )
    <=> subset(X1,X0) ),
    inference(rectify,[],[f10]) ).

fof(f10,axiom,
    ! [X1,X0] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( member(X2,X0)
         => member(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',subset_defn) ).

fof(f113,plain,
    ( ~ subset(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f110,f69]) ).

fof(f110,plain,
    ( ~ subset(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4)))
    | ~ subset(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(forward_demodulation,[],[f109,f70]) ).

fof(f70,plain,
    ! [X0,X1] : intersection(X0,X1) = intersection(X1,X0),
    inference(cnf_transformation,[],[f9]) ).

fof(f9,axiom,
    ! [X0,X1] : intersection(X0,X1) = intersection(X1,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_intersection) ).

fof(f109,plain,
    ( ~ subset(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4)))
    | ~ subset(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK4),difference(sK2,sK3))) ),
    inference(forward_demodulation,[],[f100,f70]) ).

fof(f100,plain,
    ( ~ subset(intersection(difference(sK2,sK4),difference(sK2,sK3)),difference(sK2,union(sK3,sK4)))
    | ~ subset(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK4),difference(sK2,sK3))) ),
    inference(extensionality_resolution,[],[f64,f85]) ).

fof(f85,plain,
    difference(sK2,union(sK3,sK4)) != intersection(difference(sK2,sK4),difference(sK2,sK3)),
    inference(backward_demodulation,[],[f76,f75]) ).

fof(f75,plain,
    ! [X0,X1] : union(X0,X1) = union(X1,X0),
    inference(cnf_transformation,[],[f47]) ).

fof(f47,plain,
    ! [X0,X1] : union(X0,X1) = union(X1,X0),
    inference(rectify,[],[f8]) ).

fof(f8,axiom,
    ! [X1,X0] : union(X0,X1) = union(X1,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_of_union) ).

fof(f76,plain,
    intersection(difference(sK2,sK4),difference(sK2,sK3)) != difference(sK2,union(sK4,sK3)),
    inference(cnf_transformation,[],[f50]) ).

fof(f50,plain,
    intersection(difference(sK2,sK4),difference(sK2,sK3)) != difference(sK2,union(sK4,sK3)),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK2,sK3,sK4])],[f48,f49]) ).

fof(f49,plain,
    ( ? [X0,X1,X2] : difference(X0,union(X2,X1)) != intersection(difference(X0,X2),difference(X0,X1))
   => intersection(difference(sK2,sK4),difference(sK2,sK3)) != difference(sK2,union(sK4,sK3)) ),
    introduced(choice_axiom,[]) ).

fof(f48,plain,
    ? [X0,X1,X2] : difference(X0,union(X2,X1)) != intersection(difference(X0,X2),difference(X0,X1)),
    inference(rectify,[],[f23]) ).

fof(f23,plain,
    ? [X0,X2,X1] : difference(X0,union(X1,X2)) != intersection(difference(X0,X1),difference(X0,X2)),
    inference(ennf_transformation,[],[f14]) ).

fof(f14,negated_conjecture,
    ~ ! [X0,X1,X2] : difference(X0,union(X1,X2)) = intersection(difference(X0,X1),difference(X0,X2)),
    inference(negated_conjecture,[],[f13]) ).

fof(f13,conjecture,
    ! [X0,X1,X2] : difference(X0,union(X1,X2)) = intersection(difference(X0,X1),difference(X0,X2)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_th85) ).

fof(f64,plain,
    ! [X0,X1] :
      ( ~ subset(X1,X0)
      | ~ subset(X0,X1)
      | X0 = X1 ),
    inference(cnf_transformation,[],[f39]) ).

fof(f39,plain,
    ! [X0,X1] :
      ( ( ( subset(X0,X1)
          & subset(X1,X0) )
        | X0 != X1 )
      & ( X0 = X1
        | ~ subset(X0,X1)
        | ~ subset(X1,X0) ) ),
    inference(rectify,[],[f38]) ).

fof(f38,plain,
    ! [X1,X0] :
      ( ( ( subset(X1,X0)
          & subset(X0,X1) )
        | X0 != X1 )
      & ( X0 = X1
        | ~ subset(X1,X0)
        | ~ subset(X0,X1) ) ),
    inference(flattening,[],[f37]) ).

fof(f37,plain,
    ! [X1,X0] :
      ( ( ( subset(X1,X0)
          & subset(X0,X1) )
        | X0 != X1 )
      & ( X0 = X1
        | ~ subset(X1,X0)
        | ~ subset(X0,X1) ) ),
    inference(nnf_transformation,[],[f18]) ).

fof(f18,plain,
    ! [X1,X0] :
      ( ( subset(X1,X0)
        & subset(X0,X1) )
    <=> X0 = X1 ),
    inference(rectify,[],[f7]) ).

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

fof(f174,plain,
    ( member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2) ),
    inference(subsumption_resolution,[],[f173,f126]) ).

fof(f126,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK3)
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f123,f71]) ).

fof(f71,plain,
    ! [X2,X0,X1] :
      ( member(X1,union(X2,X0))
      | ~ member(X1,X2) ),
    inference(cnf_transformation,[],[f46]) ).

fof(f46,plain,
    ! [X0,X1,X2] :
      ( ( member(X1,X0)
        | member(X1,X2)
        | ~ member(X1,union(X2,X0)) )
      & ( member(X1,union(X2,X0))
        | ( ~ member(X1,X0)
          & ~ member(X1,X2) ) ) ),
    inference(rectify,[],[f45]) ).

fof(f45,plain,
    ! [X1,X2,X0] :
      ( ( member(X2,X1)
        | member(X2,X0)
        | ~ member(X2,union(X0,X1)) )
      & ( member(X2,union(X0,X1))
        | ( ~ member(X2,X1)
          & ~ member(X2,X0) ) ) ),
    inference(flattening,[],[f44]) ).

fof(f44,plain,
    ! [X1,X2,X0] :
      ( ( member(X2,X1)
        | member(X2,X0)
        | ~ member(X2,union(X0,X1)) )
      & ( member(X2,union(X0,X1))
        | ( ~ member(X2,X1)
          & ~ member(X2,X0) ) ) ),
    inference(nnf_transformation,[],[f1]) ).

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

fof(f123,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),union(sK3,sK4))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f117,f63]) ).

fof(f173,plain,
    ( member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK3)
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2) ),
    inference(resolution,[],[f168,f61]) ).

fof(f61,plain,
    ! [X2,X0,X1] :
      ( member(X2,difference(X1,X0))
      | member(X2,X0)
      | ~ member(X2,X1) ),
    inference(cnf_transformation,[],[f36]) ).

fof(f168,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(subsumption_resolution,[],[f167,f125]) ).

fof(f125,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK4)
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f123,f72]) ).

fof(f72,plain,
    ! [X2,X0,X1] :
      ( member(X1,union(X2,X0))
      | ~ member(X1,X0) ),
    inference(cnf_transformation,[],[f46]) ).

fof(f167,plain,
    ( member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK4)
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(subsumption_resolution,[],[f163,f62]) ).

fof(f163,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2)
    | member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK4)
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3)) ),
    inference(resolution,[],[f61,f153]) ).

fof(f153,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK4))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f56,f118]) ).

fof(f118,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4))) ),
    inference(resolution,[],[f113,f68]) ).

fof(f68,plain,
    ! [X0,X1] :
      ( subset(X1,X0)
      | ~ member(sK1(X0,X1),X0) ),
    inference(cnf_transformation,[],[f43]) ).

fof(f56,plain,
    ! [X2,X0,X1] :
      ( member(X2,intersection(X1,X0))
      | ~ member(X2,X0)
      | ~ member(X2,X1) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f188,plain,
    member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK3),
    inference(subsumption_resolution,[],[f185,f178]) ).

fof(f178,plain,
    ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK4),
    inference(resolution,[],[f176,f63]) ).

fof(f176,plain,
    member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,sK4)),
    inference(resolution,[],[f175,f58]) ).

fof(f58,plain,
    ! [X2,X0,X1] :
      ( ~ member(X2,intersection(X1,X0))
      | member(X2,X0) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f185,plain,
    ( member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK4)
    | member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK3) ),
    inference(resolution,[],[f73,f182]) ).

fof(f182,plain,
    member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),union(sK3,sK4)),
    inference(subsumption_resolution,[],[f172,f179]) ).

fof(f179,plain,
    member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK2),
    inference(resolution,[],[f176,f62]) ).

fof(f172,plain,
    ( member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),union(sK3,sK4))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),sK2) ),
    inference(resolution,[],[f171,f61]) ).

fof(f171,plain,
    ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))),
    inference(subsumption_resolution,[],[f170,f120]) ).

fof(f120,plain,
    ( member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2)
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f115,f62]) ).

fof(f115,plain,
    ( member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,union(sK3,sK4)))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f114,f69]) ).

fof(f114,plain,
    ( ~ subset(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f110,f68]) ).

fof(f170,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2)
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(subsumption_resolution,[],[f169,f122]) ).

fof(f122,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK3)
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f119,f71]) ).

fof(f119,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),union(sK3,sK4))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f115,f63]) ).

fof(f169,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2)
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4)))
    | member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK3) ),
    inference(resolution,[],[f166,f61]) ).

fof(f166,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(subsumption_resolution,[],[f165,f121]) ).

fof(f121,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK4)
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f119,f72]) ).

fof(f165,plain,
    ( ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4)))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3))
    | member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK4) ),
    inference(subsumption_resolution,[],[f164,f62]) ).

fof(f164,plain,
    ( ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4)))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK2)
    | member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),sK4) ),
    inference(resolution,[],[f61,f154]) ).

fof(f154,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK4))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4)))
    | ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),difference(sK2,sK3)) ),
    inference(resolution,[],[f56,f116]) ).

fof(f116,plain,
    ( ~ member(sK1(intersection(difference(sK2,sK3),difference(sK2,sK4)),difference(sK2,union(sK3,sK4))),intersection(difference(sK2,sK3),difference(sK2,sK4)))
    | ~ member(sK1(difference(sK2,union(sK3,sK4)),intersection(difference(sK2,sK3),difference(sK2,sK4))),difference(sK2,union(sK3,sK4))) ),
    inference(resolution,[],[f114,f68]) ).

fof(f73,plain,
    ! [X2,X0,X1] :
      ( ~ member(X1,union(X2,X0))
      | member(X1,X2)
      | member(X1,X0) ),
    inference(cnf_transformation,[],[f46]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.05/0.10  % Problem    : SET612+3 : TPTP v8.1.0. Released v2.2.0.
% 0.05/0.11  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.10/0.31  % Computer : n007.cluster.edu
% 0.10/0.31  % Model    : x86_64 x86_64
% 0.10/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31  % Memory   : 8042.1875MB
% 0.10/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.31  % CPULimit   : 300
% 0.10/0.31  % WCLimit    : 300
% 0.10/0.31  % DateTime   : Tue Aug 30 13:53:01 EDT 2022
% 0.10/0.31  % CPUTime    : 
% 0.15/0.42  % (24827)ott-1_1:6_av=off:cond=on:fsr=off:nwc=3.0:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 0.15/0.42  % (24840)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=498:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/498Mi)
% 0.15/0.43  % (24840)First to succeed.
% 0.15/0.45  % (24840)Refutation found. Thanks to Tanya!
% 0.15/0.45  % SZS status Theorem for theBenchmark
% 0.15/0.45  % SZS output start Proof for theBenchmark
% See solution above
% 0.15/0.45  % (24840)------------------------------
% 0.15/0.45  % (24840)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.15/0.45  % (24840)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.15/0.45  % (24840)Termination reason: Refutation
% 0.15/0.45  
% 0.15/0.45  % (24840)Memory used [KB]: 1023
% 0.15/0.45  % (24840)Time elapsed: 0.065 s
% 0.15/0.45  % (24840)Instructions burned: 11 (million)
% 0.15/0.45  % (24840)------------------------------
% 0.15/0.45  % (24840)------------------------------
% 0.15/0.45  % (24817)Success in time 0.13 s
%------------------------------------------------------------------------------