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Vampire---5.0.1.THM-Ref.s

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%------------------------------------------------------------------------------
% File     : Vampire---5.0.1
% Problem  : SEU166+1 : TPTP v9.3.1. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM

% Computer : n002.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue Sep 29 12:47:32 PM UTC 2026

% Result   : Theorem 3.87s 1.40s
% Output   : Refutation 4.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   23
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   84 (  10 unt;   4 def)
%            Number of atoms       :  266 (  40 equ)
%            Maximal formula atoms :   18 (   3 avg)
%            Number of connectives :  297 ( 115   ~; 138   |;  33   &)
%                                         (   8 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   5 avg)
%            Maximal term depth    :    6 (   1 avg)
%            Number of predicates  :    8 (   6 usr;   5 prp; 0-2 aty)
%            Number of functors    :   13 (  13 usr;   3 con; 0-3 aty)
%            Number of variables   :  150 (   0 sgn 133   !;  17   ?)

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

fof(f3,axiom,
    ! [X0,X1,X2] :
      ( X2 = cartesian_product2(X0,X1)
    <=> ! [X3] :
          ( in(X3,X2)
        <=> ? [X4,X5] :
              ( in(X4,X0)
              & in(X5,X1)
              & X3 = ordered_pair(X4,X5) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d2_zfmisc_1) ).

fof(f4,axiom,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X0)
         => in(X2,X1) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d3_tarski) ).

fof(f5,axiom,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d5_tarski) ).

fof(f14,conjecture,
    ! [X0,X1,X2] :
      ( subset(X0,X1)
     => ( subset(cartesian_product2(X0,X2),cartesian_product2(X1,X2))
        & subset(cartesian_product2(X2,X0),cartesian_product2(X2,X1)) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t118_zfmisc_1) ).

fof(f15,negated_conjecture,
    ~ ! [X0,X1,X2] :
        ( subset(X0,X1)
       => ( subset(cartesian_product2(X0,X2),cartesian_product2(X1,X2))
          & subset(cartesian_product2(X2,X0),cartesian_product2(X2,X1)) ) ),
    inference(negated_conjecture,[status(cth)],[f14]) ).

fof(f17,plain,
    ? [X0,X1,X2] :
      ( ( ~ subset(cartesian_product2(X0,X2),cartesian_product2(X1,X2))
        | ~ subset(cartesian_product2(X2,X0),cartesian_product2(X2,X1)) )
      & subset(X0,X1) ),
    inference(ennf_transformation,[],[f15]) ).

fof(f18,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
    <=> ! [X2] :
          ( in(X2,X1)
          | ~ in(X2,X0) ) ),
    inference(ennf_transformation,[],[f4]) ).

fof(f20,plain,
    ( ( ~ subset(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))
      | ~ subset(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)) )
    & subset(sK0,sK1) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2)],[f17]) ).

fof(f21,plain,
    ! [X0,X1,X2] :
      ( ( X2 = cartesian_product2(X0,X1)
        | ? [X3] :
            ( ( ! [X4,X5] :
                  ( ~ in(X4,X0)
                  | ~ in(X5,X1)
                  | ordered_pair(X4,X5) != X3 )
              | ~ in(X3,X2) )
            & ( ? [X4,X5] :
                  ( in(X4,X0)
                  & in(X5,X1)
                  & X3 = ordered_pair(X4,X5) )
              | in(X3,X2) ) ) )
      & ( ! [X3] :
            ( ( in(X3,X2)
              | ! [X4,X5] :
                  ( ~ in(X4,X0)
                  | ~ in(X5,X1)
                  | ordered_pair(X4,X5) != X3 ) )
            & ( ? [X4,X5] :
                  ( in(X4,X0)
                  & in(X5,X1)
                  & X3 = ordered_pair(X4,X5) )
              | ~ in(X3,X2) ) )
        | cartesian_product2(X0,X1) != X2 ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f22,plain,
    ! [X0,X1,X2] :
      ( ( X2 = cartesian_product2(X0,X1)
        | ? [X3] :
            ( ( ! [X4,X5] :
                  ( ~ in(X4,X0)
                  | ~ in(X5,X1)
                  | ordered_pair(X4,X5) != X3 )
              | ~ in(X3,X2) )
            & ( ? [X6,X7] :
                  ( in(X6,X0)
                  & in(X7,X1)
                  & ordered_pair(X6,X7) = X3 )
              | in(X3,X2) ) ) )
      & ( ! [X8] :
            ( ( in(X8,X2)
              | ! [X9,X10] :
                  ( ~ in(X9,X0)
                  | ~ in(X10,X1)
                  | ordered_pair(X9,X10) != X8 ) )
            & ( ? [X11,X12] :
                  ( in(X11,X0)
                  & in(X12,X1)
                  & ordered_pair(X11,X12) = X8 )
              | ~ in(X8,X2) ) )
        | cartesian_product2(X0,X1) != X2 ) ),
    inference(rectify,[],[f21]) ).

fof(f23,plain,
    ! [X0,X1,X2] :
      ( ( X2 = cartesian_product2(X0,X1)
        | ( ( ! [X4,X5] :
                ( ~ in(X4,X0)
                | ~ in(X5,X1)
                | ordered_pair(X4,X5) != sK3(X0,X1,X2) )
            | ~ in(sK3(X0,X1,X2),X2) )
          & ( ( in(sK4(X0,X1,X2),X0)
              & in(sK5(X0,X1,X2),X1)
              & sK3(X0,X1,X2) = ordered_pair(sK4(X0,X1,X2),sK5(X0,X1,X2)) )
            | in(sK3(X0,X1,X2),X2) ) ) )
      & ( ! [X8] :
            ( ( in(X8,X2)
              | ! [X9,X10] :
                  ( ~ in(X9,X0)
                  | ~ in(X10,X1)
                  | ordered_pair(X9,X10) != X8 ) )
            & ( ( in(sK6(X0,X1,X8),X0)
                & in(sK7(X0,X1,X8),X1)
                & ordered_pair(sK6(X0,X1,X8),sK7(X0,X1,X8)) = X8 )
              | ~ in(X8,X2) ) )
        | cartesian_product2(X0,X1) != X2 ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK3,sK4,sK5,sK6,sK7]),skolemize(X3,sK3(X0,X1,X2)),skolemize(X6,sK4(X0,X1,X2)),skolemize(X7,sK5(X0,X1,X2)),skolemize(X11,sK6(X0,X1,X8)),skolemize(X12,sK7(X0,X1,X8))],[f22]) ).

fof(f24,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ? [X2] :
            ( ~ in(X2,X1)
            & in(X2,X0) ) )
      & ( ! [X2] :
            ( in(X2,X1)
            | ~ in(X2,X0) )
        | ~ subset(X0,X1) ) ),
    inference(nnf_transformation,[],[f18]) ).

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

fof(f26,plain,
    ! [X0,X1] :
      ( ( subset(X0,X1)
        | ( ~ in(sK8(X0,X1),X1)
          & in(sK8(X0,X1),X0) ) )
      & ( ! [X3] :
            ( in(X3,X1)
            | ~ in(X3,X0) )
        | ~ subset(X0,X1) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK8]),skolemize(X2,sK8(X0,X1))],[f25]) ).

fof(f29,plain,
    subset(sK0,sK1),
    inference(cnf_transformation,[],[f20]) ).

fof(f30,plain,
    ( ~ subset(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))
    | ~ subset(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)) ),
    inference(cnf_transformation,[],[f20]) ).

fof(f31,plain,
    ! [X2,X0,X1,X8] :
      ( ordered_pair(sK6(X0,X1,X8),sK7(X0,X1,X8)) = X8
      | ~ in(X8,X2)
      | cartesian_product2(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f23]) ).

fof(f32,plain,
    ! [X2,X0,X1,X8] :
      ( in(sK7(X0,X1,X8),X1)
      | ~ in(X8,X2)
      | cartesian_product2(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f23]) ).

fof(f33,plain,
    ! [X2,X0,X1,X8] :
      ( in(sK6(X0,X1,X8),X0)
      | ~ in(X8,X2)
      | cartesian_product2(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f23]) ).

fof(f34,plain,
    ! [X2,X10,X0,X1,X8,X9] :
      ( in(X8,X2)
      | ~ in(X9,X0)
      | ~ in(X10,X1)
      | ordered_pair(X9,X10) != X8
      | cartesian_product2(X0,X1) != X2 ),
    inference(cnf_transformation,[],[f23]) ).

fof(f40,plain,
    ! [X3,X0,X1] :
      ( ~ subset(X0,X1)
      | ~ in(X3,X0)
      | in(X3,X1) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f41,plain,
    ! [X0,X1] :
      ( in(sK8(X0,X1),X0)
      | subset(X0,X1) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f42,plain,
    ! [X0,X1] :
      ( ~ in(sK8(X0,X1),X1)
      | subset(X0,X1) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f43,plain,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    inference(cnf_transformation,[],[f5]) ).

fof(f44,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f2]) ).

fof(f51,plain,
    ! [X2,X10,X0,X1,X8,X9] :
      ( in(X8,X2)
      | ~ in(X9,X0)
      | ~ in(X10,X1)
      | unordered_pair(unordered_pair(X9,X10),singleton(X9)) != X8
      | cartesian_product2(X0,X1) != X2 ),
    inference(definition_unfolding,[],[f34,f43]) ).

fof(f52,plain,
    ! [X2,X0,X1,X8] :
      ( unordered_pair(unordered_pair(sK6(X0,X1,X8),sK7(X0,X1,X8)),singleton(sK6(X0,X1,X8))) = X8
      | ~ in(X8,X2)
      | cartesian_product2(X0,X1) != X2 ),
    inference(definition_unfolding,[],[f31,f43]) ).

fof(f54,plain,
    ! [X2,X10,X0,X1,X9] :
      ( in(unordered_pair(unordered_pair(X9,X10),singleton(X9)),X2)
      | ~ in(X9,X0)
      | ~ in(X10,X1)
      | cartesian_product2(X0,X1) != X2 ),
    inference(equality_resolution,[],[f51]) ).

fof(f55,plain,
    ! [X10,X0,X1,X9] :
      ( in(unordered_pair(unordered_pair(X9,X10),singleton(X9)),cartesian_product2(X0,X1))
      | ~ in(X9,X0)
      | ~ in(X10,X1) ),
    inference(equality_resolution,[],[f54]) ).

fof(f56,plain,
    ! [X0,X1,X8] :
      ( in(sK6(X0,X1,X8),X0)
      | ~ in(X8,cartesian_product2(X0,X1)) ),
    inference(equality_resolution,[],[f33]) ).

fof(f57,plain,
    ! [X0,X1,X8] :
      ( in(sK7(X0,X1,X8),X1)
      | ~ in(X8,cartesian_product2(X0,X1)) ),
    inference(equality_resolution,[],[f32]) ).

fof(f58,plain,
    ! [X0,X1,X8] :
      ( unordered_pair(unordered_pair(sK6(X0,X1,X8),sK7(X0,X1,X8)),singleton(sK6(X0,X1,X8))) = X8
      | ~ in(X8,cartesian_product2(X0,X1)) ),
    inference(equality_resolution,[],[f52]) ).

fof(f59,plain,
    ! [X0,X1,X8] :
      ( ~ in(X8,cartesian_product2(X0,X1))
      | unordered_pair(singleton(sK6(X0,X1,X8)),unordered_pair(sK6(X0,X1,X8),sK7(X0,X1,X8))) = X8 ),
    inference(forward_demodulation,[],[f58,f44]) ).

fof(f60,plain,
    ! [X10,X0,X1,X9] :
      ( in(unordered_pair(singleton(X9),unordered_pair(X9,X10)),cartesian_product2(X0,X1))
      | ~ in(X9,X0)
      | ~ in(X10,X1) ),
    inference(forward_demodulation,[],[f55,f44]) ).

fof(f64,definition,
    ( spl11_1
  <=> subset(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)) ),
    introduced(definition,[new_symbols(definition,[spl11_1])],[avatar_definition]) ).

fof(f66,plain,
    ( ~ subset(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))
    | spl11_1 ),
    inference(avatar_component_clause,[],[f64]) ).

fof(f68,definition,
    ( spl11_2
  <=> subset(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)) ),
    introduced(definition,[new_symbols(definition,[spl11_2])],[avatar_definition]) ).

fof(f70,plain,
    ( ~ subset(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))
    | spl11_2 ),
    inference(avatar_component_clause,[],[f68]) ).

fof(f71,plain,
    ( ~ spl11_1
    | ~ spl11_2 ),
    inference(avatar_split_clause,[],[f30,f68,f64]) ).

fof(f85,plain,
    ! [X0] :
      ( ~ in(X0,sK0)
      | in(X0,sK1) ),
    inference(resolution,[],[f40,f29]) ).

fof(f89,plain,
    ! [X0,X1] :
      ( in(sK6(sK0,X1,X0),sK1)
      | ~ in(X0,cartesian_product2(sK0,X1)) ),
    inference(resolution,[],[f56,f85]) ).

fof(f94,plain,
    ! [X0,X1] :
      ( in(sK7(X1,sK0,X0),sK1)
      | ~ in(X0,cartesian_product2(X1,sK0)) ),
    inference(resolution,[],[f57,f85]) ).

fof(f107,plain,
    ! [X2,X0,X1] :
      ( subset(cartesian_product2(X0,X1),X2)
      | sK8(cartesian_product2(X0,X1),X2) = unordered_pair(singleton(sK6(X0,X1,sK8(cartesian_product2(X0,X1),X2))),unordered_pair(sK6(X0,X1,sK8(cartesian_product2(X0,X1),X2)),sK7(X0,X1,sK8(cartesian_product2(X0,X1),X2)))) ),
    inference(resolution,[],[f59,f41]) ).

fof(f136,plain,
    ( sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)) = unordered_pair(singleton(sK6(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)))),unordered_pair(sK6(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))),sK7(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)))))
    | spl11_1 ),
    inference(resolution,[],[f107,f66]) ).

fof(f140,plain,
    ( ! [X0,X1] :
        ( ~ in(sK7(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))),X1)
        | ~ in(sK6(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))),X0)
        | in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(X0,X1)) )
    | spl11_1 ),
    inference(superposition,[],[f60,f136]) ).

fof(f210,definition,
    ( spl11_3
  <=> in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK0)) ),
    introduced(definition,[new_symbols(definition,[spl11_3])],[avatar_definition]) ).

fof(f211,plain,
    ( in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK0))
    | ~ spl11_3 ),
    inference(avatar_component_clause,[],[f210]) ).

fof(f212,plain,
    ( ~ in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK0))
    | spl11_3 ),
    inference(avatar_component_clause,[],[f210]) ).

fof(f227,plain,
    ( subset(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))
    | spl11_3 ),
    inference(resolution,[],[f212,f41]) ).

fof(f228,plain,
    ( $false
    | spl11_1
    | spl11_3 ),
    inference(forward_subsumption_resolution,[],[f227,f66]) ).

fof(f229,plain,
    ( spl11_1
    | spl11_3 ),
    inference(avatar_contradiction_clause,[],[f228]) ).

fof(f278,plain,
    ( ! [X0] :
        ( ~ in(sK6(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))),X0)
        | in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(X0,sK1))
        | ~ in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK0)) )
    | spl11_1 ),
    inference(resolution,[],[f140,f94]) ).

fof(f279,plain,
    ( ! [X0] :
        ( ~ in(sK6(sK2,sK0,sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))),X0)
        | in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(X0,sK1)) )
    | spl11_1
    | ~ spl11_3 ),
    inference(forward_subsumption_resolution,[],[f278,f211]) ).

fof(f298,plain,
    ( in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK1))
    | ~ in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK0))
    | spl11_1
    | ~ spl11_3 ),
    inference(resolution,[],[f279,f56]) ).

fof(f299,plain,
    ( in(sK8(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1)),cartesian_product2(sK2,sK1))
    | spl11_1
    | ~ spl11_3 ),
    inference(forward_subsumption_resolution,[],[f298,f211]) ).

fof(f302,plain,
    ( subset(cartesian_product2(sK2,sK0),cartesian_product2(sK2,sK1))
    | spl11_1
    | ~ spl11_3 ),
    inference(resolution,[],[f299,f42]) ).

fof(f305,plain,
    ( $false
    | spl11_1
    | ~ spl11_3 ),
    inference(forward_subsumption_resolution,[],[f302,f66]) ).

fof(f306,plain,
    ( spl11_1
    | ~ spl11_3 ),
    inference(avatar_contradiction_clause,[],[f305]) ).

fof(f308,plain,
    ( sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)) = unordered_pair(singleton(sK6(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)))),unordered_pair(sK6(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))),sK7(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)))))
    | spl11_2 ),
    inference(resolution,[],[f70,f107]) ).

fof(f417,plain,
    ( ! [X0,X1] :
        ( ~ in(sK7(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))),X1)
        | ~ in(sK6(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))),X0)
        | in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(X0,X1)) )
    | spl11_2 ),
    inference(superposition,[],[f60,f308]) ).

fof(f1036,definition,
    ( spl11_18
  <=> in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK0,sK2)) ),
    introduced(definition,[new_symbols(definition,[spl11_18])],[avatar_definition]) ).

fof(f1037,plain,
    ( in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK0,sK2))
    | ~ spl11_18 ),
    inference(avatar_component_clause,[],[f1036]) ).

fof(f1038,plain,
    ( ~ in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK0,sK2))
    | spl11_18 ),
    inference(avatar_component_clause,[],[f1036]) ).

fof(f1083,plain,
    ( subset(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))
    | spl11_18 ),
    inference(resolution,[],[f1038,f41]) ).

fof(f1084,plain,
    ( $false
    | spl11_2
    | spl11_18 ),
    inference(forward_subsumption_resolution,[],[f1083,f70]) ).

fof(f1085,plain,
    ( spl11_2
    | spl11_18 ),
    inference(avatar_contradiction_clause,[],[f1084]) ).

fof(f1170,plain,
    ( ! [X0] :
        ( ~ in(sK6(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))),X0)
        | in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(X0,sK2))
        | ~ in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK0,sK2)) )
    | spl11_2 ),
    inference(resolution,[],[f417,f57]) ).

fof(f1171,plain,
    ( ! [X0] :
        ( ~ in(sK6(sK0,sK2,sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))),X0)
        | in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(X0,sK2)) )
    | spl11_2
    | ~ spl11_18 ),
    inference(forward_subsumption_resolution,[],[f1170,f1037]) ).

fof(f1224,plain,
    ( in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK1,sK2))
    | ~ in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK0,sK2))
    | spl11_2
    | ~ spl11_18 ),
    inference(resolution,[],[f1171,f89]) ).

fof(f1225,plain,
    ( in(sK8(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2)),cartesian_product2(sK1,sK2))
    | spl11_2
    | ~ spl11_18 ),
    inference(forward_subsumption_resolution,[],[f1224,f1037]) ).

fof(f1254,plain,
    ( subset(cartesian_product2(sK0,sK2),cartesian_product2(sK1,sK2))
    | spl11_2
    | ~ spl11_18 ),
    inference(resolution,[],[f1225,f42]) ).

fof(f1265,plain,
    ( $false
    | spl11_2
    | ~ spl11_18 ),
    inference(forward_subsumption_resolution,[],[f1254,f70]) ).

fof(f1266,plain,
    ( spl11_2
    | ~ spl11_18 ),
    inference(avatar_contradiction_clause,[],[f1265]) ).

cnf(s1,plain,
    ( ~ spl11_1
    | ~ spl11_2 ),
    inference(sat_conversion,[],[f71]) ).

cnf(s4,plain,
    ( spl11_1
    | spl11_3 ),
    inference(sat_conversion,[],[f229]) ).

cnf(s5,plain,
    ( spl11_1
    | ~ spl11_3 ),
    inference(sat_conversion,[],[f306]) ).

cnf(s13,plain,
    ( spl11_2
    | spl11_18 ),
    inference(sat_conversion,[],[f1085]) ).

cnf(s14,plain,
    ( spl11_2
    | ~ spl11_18 ),
    inference(sat_conversion,[],[f1266]) ).

cnf(s15,plain,
    spl11_1,
    inference(rat,[],[s4,s5]) ).

cnf(s16,plain,
    ~ spl11_2,
    inference(rat,[],[s1,s15]) ).

cnf(s17,plain,
    ~ spl11_18,
    inference(rat,[],[s14,s16]) ).

cnf(s18,plain,
    $false,
    inference(rat,[],[s13,s17,s16]) ).

fof(f1267,plain,
    $false,
    inference(avatar_sat_refutation,[],[s18]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : SEU166+1 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.06  % Command  : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.12/0.41  % Computer : n002.cluster.edu
% 0.12/0.41  % Model    : x86_64 x86_64
% 0.12/0.41  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.41  % Memory   : 8046.5625MB
% 0.12/0.41  % OS       : Linux 6.8.0-71-generic
% 0.12/0.41  % CPULimit : 300
% 0.12/0.41  % WCLimit  : 300
% 0.12/0.41  % DateTime : Mon Sep 28 03:54:22 UTC 2026
% 0.12/0.41  % CPUTime  : 
% 0.12/0.41  Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.12/0.45  Running first-order theorem proving
% 0.12/0.45  Running: /export/starexec/sandbox/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 3.87/1.40  % (4131262)Detected formulas, will run a generic FOF schedule.
% 3.87/1.40  % (4131271)dis-1010_2:3_sil=16000:sp=reverse_frequency:random_seed=4157942844:i=119:av=off:ss=axioms_2999 on theBenchmark for (2999ds/119Mi)
% 3.87/1.40  % (4131271)Instruction limit reached! 
% 3.87/1.40  % (4131271)------------------------------
% 3.87/1.40  % (4131271)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.87/1.40  % (4131271)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.87/1.40  % (4131271)CaDiCaL version: 2.1.3
% 3.87/1.40  % (4131271)Termination reason: Instruction limit
% 3.87/1.40  % (4131271)Termination phase: Saturation
% 3.87/1.40  % (4131271)Time elapsed: 0.034 s
% 3.87/1.40  % (4131271)Peak memory usage: 88 MB
% 3.87/1.40  % (4131271)Instructions burned: 119 (million)
% 3.87/1.40  % (4131270)lrs+1010_1_to=lpo:sil=32000:sos=on:spb=goal_then_units:bce=on:random_seed=295184617:i=109:sd=1:ins=1:gsp=on:ss=axioms_2999 on theBenchmark for (2999ds/109Mi)
% 3.87/1.40  % (4131267)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=full:npcc=on:drc=off:sp=weighted_frequency:spb=goal:fd=preordered:foolp=on:random_seed=1195000660:i=141193_2999 on theBenchmark for (2999ds/141193Mi)
% 3.87/1.40  % (4131268)lrs+11_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:lma=off:spb=units:urr=ec_only:bce=on:s2agt=64:updr=off:random_seed=96930476:i=134677:sd=20:aac=none:nm=16:ss=included:sgt=10_2999 on theBenchmark for (2999ds/134677Mi)
% 3.87/1.40  % (4131273)dis-21_1_sil=8000:lcm=predicate:random_seed=3960066106:st=5:avsq=on:i=129:avsqr=1,16:sd=3:aac=none:ep=RS:fsr=off:ss=included_2999 on theBenchmark for (2999ds/129Mi)
% 3.87/1.40  % (4131269)lrs+1010_1_anc=all:sfv=off:to=kbo:ncem=casc2026/models/loop7.pt:sil=128000:npcc=on:prc=on:sos=all:bsr=unit_only:sac=on:random_seed=879767197:i=141695:sd=1:nm=32:gsp=on:ss=included_2999 on theBenchmark for (2999ds/141695Mi)
% 3.87/1.40  % (4131270)Refutation not found, incomplete strategy
% 3.87/1.40  % (4131270)------------------------------
% 3.87/1.40  % (4131270)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.87/1.40  % (4131270)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.87/1.40  % (4131270)CaDiCaL version: 2.1.3
% 3.87/1.40  % (4131270)Termination reason: Refutation not found, incomplete strategy
% 3.87/1.40  % (4131270)Time elapsed: 0.002 s
% 3.87/1.40  % (4131270)Peak memory usage: 88 MB
% 3.87/1.40  % (4131270)Instructions burned: 1 (million)
% 3.87/1.40  % (4131272)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=679466566:s2a=on:i=139:gtg=position_2999 on theBenchmark for (2999ds/139Mi)
% 3.87/1.40  % (4131273)Instruction limit reached! 
% 3.87/1.40  % (4131273)------------------------------
% 3.87/1.40  % (4131273)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.87/1.40  % (4131273)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.87/1.40  % (4131273)CaDiCaL version: 2.1.3
% 3.87/1.40  % (4131273)Termination reason: Instruction limit
% 3.87/1.40  % (4131273)Termination phase: Saturation
% 3.87/1.40  % (4131273)Time elapsed: 0.076 s
% 3.87/1.40  % (4131273)Peak memory usage: 89 MB
% 3.87/1.40  % (4131273)Instructions burned: 129 (million)
% 3.87/1.40  % (4131272)Instruction limit reached! 
% 3.87/1.40  % (4131272)------------------------------
% 3.87/1.40  % (4131272)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.87/1.40  % (4131272)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.87/1.40  % (4131272)CaDiCaL version: 2.1.3
% 3.87/1.40  % (4131272)Termination reason: Instruction limit
% 3.87/1.40  % (4131272)Termination phase: Saturation
% 3.87/1.40  % (4131272)Time elapsed: 0.091 s
% 3.87/1.40  % (4131272)Peak memory usage: 89 MB
% 3.87/1.40  % (4131272)Instructions burned: 140 (million)
% 3.87/1.40  % (4131275)lrs+10_1_sil=8000:sp=occurrence:random_seed=688901521:i=285:sd=3:ss=axioms:sgt=8_2998 on theBenchmark for (2998ds/285Mi)
% 3.87/1.40  % (4131275)First to succeed.
% 3.87/1.40  % (4131275)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-4131262"
% 3.87/1.40  % (4131282)lrs+10_1_sil=32000:urr=on:br=off:random_seed=4111624873:i=157:sd=1:gtg=position:ss=axioms:sgt=8_2997 on theBenchmark for (2997ds/157Mi)
% 3.87/1.40  % (4131282)Also succeeded, but the first one will report.
% 3.87/1.40  % (4131270)------------------------------
% 3.87/1.40  % (4131270)------------------------------
% 3.87/1.40  % (4131283)lrs+1011_1_sil=32000:sp=occurrence:random_seed=2334604710:i=325:sd=1:ss=axioms:sgt=32_2997 on theBenchmark for (2997ds/325Mi)
% 3.87/1.40  % (4131283)Also succeeded, but the first one will report.
% 3.87/1.40  % (4131275)Refutation found. Thanks to Tanya!
% 3.87/1.40  % SZS status Theorem for theBenchmark
% 3.87/1.40  % SZS output start Proof for theBenchmark
% See solution above
% 4.19/1.60  % (4131275)------------------------------
% 4.19/1.60  % (4131275)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 4.19/1.60  % (4131275)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 4.19/1.60  % (4131275)CaDiCaL version: 2.1.3
% 4.19/1.60  % (4131275)Termination reason: Refutation
% 4.19/1.60  % (4131275)Time elapsed: 0.061 s
% 4.19/1.60  % (4131275)Peak memory usage: 92 MB
% 4.19/1.60  % (4131275)Instructions burned: 201 (million)
% 4.19/1.60  % (4131275)------------------------------
% 4.19/1.60  % (4131275)------------------------------
% 4.19/1.60  % (4131262)Success in time 0.513 s
% 4.19/1.60  % Vampire exiting
%------------------------------------------------------------------------------