TSTP Solution File: SET949+1 by SnakeForV---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : SET949+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --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 18:22:50 EDT 2022

% Result   : Theorem 0.20s 0.52s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   35 (  16 unt;   0 def)
%            Number of atoms       :  134 (  58 equ)
%            Maximal formula atoms :   18 (   3 avg)
%            Number of connectives :  158 (  59   ~;  45   |;  46   &)
%                                         (   4 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   6 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :   12 (  12 usr;   3 con; 0-3 aty)
%            Number of variables   :  138 ( 109   !;  29   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f131,plain,
    $false,
    inference(trivial_inequality_removal,[],[f118]) ).

fof(f118,plain,
    sK2 != sK2,
    inference(superposition,[],[f102,f89]) ).

fof(f89,plain,
    unordered_pair(singleton(sK5(sK0,sK1,sK2)),unordered_pair(sK4(sK0,sK1,sK2),sK5(sK0,sK1,sK2))) = sK2,
    inference(resolution,[],[f60,f32]) ).

fof(f32,plain,
    in(sK2,cartesian_product2(sK1,sK0)),
    inference(cnf_transformation,[],[f18]) ).

fof(f18,plain,
    ( in(sK2,cartesian_product2(sK1,sK0))
    & ! [X3,X4] : sK2 != ordered_pair(X4,X3) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2])],[f15,f17]) ).

fof(f17,plain,
    ( ? [X0,X1,X2] :
        ( in(X2,cartesian_product2(X1,X0))
        & ! [X3,X4] : ordered_pair(X4,X3) != X2 )
   => ( in(sK2,cartesian_product2(sK1,sK0))
      & ! [X4,X3] : sK2 != ordered_pair(X4,X3) ) ),
    introduced(choice_axiom,[]) ).

fof(f15,plain,
    ? [X0,X1,X2] :
      ( in(X2,cartesian_product2(X1,X0))
      & ! [X3,X4] : ordered_pair(X4,X3) != X2 ),
    inference(ennf_transformation,[],[f10]) ).

fof(f10,plain,
    ~ ! [X0,X1,X2] :
        ~ ( in(X2,cartesian_product2(X1,X0))
          & ! [X3,X4] : ordered_pair(X4,X3) != X2 ),
    inference(rectify,[],[f9]) ).

fof(f9,negated_conjecture,
    ~ ! [X2,X1,X0] :
        ~ ( ! [X4,X3] : ordered_pair(X3,X4) != X0
          & in(X0,cartesian_product2(X1,X2)) ),
    inference(negated_conjecture,[],[f8]) ).

fof(f8,conjecture,
    ! [X2,X1,X0] :
      ~ ( ! [X4,X3] : ordered_pair(X3,X4) != X0
        & in(X0,cartesian_product2(X1,X2)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t102_zfmisc_1) ).

fof(f60,plain,
    ! [X2,X3,X0] :
      ( ~ in(X3,cartesian_product2(X2,X0))
      | unordered_pair(singleton(sK5(X0,X2,X3)),unordered_pair(sK4(X0,X2,X3),sK5(X0,X2,X3))) = X3 ),
    inference(forward_demodulation,[],[f58,f36]) ).

fof(f36,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(cnf_transformation,[],[f22]) ).

fof(f22,plain,
    ! [X0,X1] : unordered_pair(X0,X1) = unordered_pair(X1,X0),
    inference(rectify,[],[f12]) ).

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

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

fof(f58,plain,
    ! [X2,X3,X0] :
      ( unordered_pair(singleton(sK5(X0,X2,X3)),unordered_pair(sK5(X0,X2,X3),sK4(X0,X2,X3))) = X3
      | ~ in(X3,cartesian_product2(X2,X0)) ),
    inference(backward_demodulation,[],[f55,f36]) ).

fof(f55,plain,
    ! [X2,X3,X0] :
      ( unordered_pair(unordered_pair(sK5(X0,X2,X3),sK4(X0,X2,X3)),singleton(sK5(X0,X2,X3))) = X3
      | ~ in(X3,cartesian_product2(X2,X0)) ),
    inference(equality_resolution,[],[f50]) ).

fof(f50,plain,
    ! [X2,X3,X0,X1] :
      ( unordered_pair(unordered_pair(sK5(X0,X2,X3),sK4(X0,X2,X3)),singleton(sK5(X0,X2,X3))) = X3
      | ~ in(X3,X1)
      | cartesian_product2(X2,X0) != X1 ),
    inference(definition_unfolding,[],[f43,f34]) ).

fof(f34,plain,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    inference(cnf_transformation,[],[f21]) ).

fof(f21,plain,
    ! [X0,X1] : ordered_pair(X0,X1) = unordered_pair(unordered_pair(X0,X1),singleton(X0)),
    inference(rectify,[],[f14]) ).

fof(f14,plain,
    ! [X1,X0] : unordered_pair(unordered_pair(X1,X0),singleton(X1)) = ordered_pair(X1,X0),
    inference(rectify,[],[f4]) ).

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

fof(f43,plain,
    ! [X2,X3,X0,X1] :
      ( ordered_pair(sK5(X0,X2,X3),sK4(X0,X2,X3)) = X3
      | ~ in(X3,X1)
      | cartesian_product2(X2,X0) != X1 ),
    inference(cnf_transformation,[],[f28]) ).

fof(f28,plain,
    ! [X0,X1,X2] :
      ( ( ! [X3] :
            ( ( in(X3,X1)
              | ! [X4,X5] :
                  ( ordered_pair(X5,X4) != X3
                  | ~ in(X4,X0)
                  | ~ in(X5,X2) ) )
            & ( ( ordered_pair(sK5(X0,X2,X3),sK4(X0,X2,X3)) = X3
                & in(sK4(X0,X2,X3),X0)
                & in(sK5(X0,X2,X3),X2) )
              | ~ in(X3,X1) ) )
        | cartesian_product2(X2,X0) != X1 )
      & ( cartesian_product2(X2,X0) = X1
        | ( ( ! [X9,X10] :
                ( ordered_pair(X10,X9) != sK6(X0,X1,X2)
                | ~ in(X9,X0)
                | ~ in(X10,X2) )
            | ~ in(sK6(X0,X1,X2),X1) )
          & ( ( sK6(X0,X1,X2) = ordered_pair(sK8(X0,X1,X2),sK7(X0,X1,X2))
              & in(sK7(X0,X1,X2),X0)
              & in(sK8(X0,X1,X2),X2) )
            | in(sK6(X0,X1,X2),X1) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK4,sK5,sK6,sK7,sK8])],[f24,f27,f26,f25]) ).

fof(f25,plain,
    ! [X0,X2,X3] :
      ( ? [X6,X7] :
          ( ordered_pair(X7,X6) = X3
          & in(X6,X0)
          & in(X7,X2) )
     => ( ordered_pair(sK5(X0,X2,X3),sK4(X0,X2,X3)) = X3
        & in(sK4(X0,X2,X3),X0)
        & in(sK5(X0,X2,X3),X2) ) ),
    introduced(choice_axiom,[]) ).

fof(f26,plain,
    ! [X0,X1,X2] :
      ( ? [X8] :
          ( ( ! [X9,X10] :
                ( ordered_pair(X10,X9) != X8
                | ~ in(X9,X0)
                | ~ in(X10,X2) )
            | ~ in(X8,X1) )
          & ( ? [X11,X12] :
                ( ordered_pair(X12,X11) = X8
                & in(X11,X0)
                & in(X12,X2) )
            | in(X8,X1) ) )
     => ( ( ! [X10,X9] :
              ( ordered_pair(X10,X9) != sK6(X0,X1,X2)
              | ~ in(X9,X0)
              | ~ in(X10,X2) )
          | ~ in(sK6(X0,X1,X2),X1) )
        & ( ? [X12,X11] :
              ( sK6(X0,X1,X2) = ordered_pair(X12,X11)
              & in(X11,X0)
              & in(X12,X2) )
          | in(sK6(X0,X1,X2),X1) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f27,plain,
    ! [X0,X1,X2] :
      ( ? [X12,X11] :
          ( sK6(X0,X1,X2) = ordered_pair(X12,X11)
          & in(X11,X0)
          & in(X12,X2) )
     => ( sK6(X0,X1,X2) = ordered_pair(sK8(X0,X1,X2),sK7(X0,X1,X2))
        & in(sK7(X0,X1,X2),X0)
        & in(sK8(X0,X1,X2),X2) ) ),
    introduced(choice_axiom,[]) ).

fof(f24,plain,
    ! [X0,X1,X2] :
      ( ( ! [X3] :
            ( ( in(X3,X1)
              | ! [X4,X5] :
                  ( ordered_pair(X5,X4) != X3
                  | ~ in(X4,X0)
                  | ~ in(X5,X2) ) )
            & ( ? [X6,X7] :
                  ( ordered_pair(X7,X6) = X3
                  & in(X6,X0)
                  & in(X7,X2) )
              | ~ in(X3,X1) ) )
        | cartesian_product2(X2,X0) != X1 )
      & ( cartesian_product2(X2,X0) = X1
        | ? [X8] :
            ( ( ! [X9,X10] :
                  ( ordered_pair(X10,X9) != X8
                  | ~ in(X9,X0)
                  | ~ in(X10,X2) )
              | ~ in(X8,X1) )
            & ( ? [X11,X12] :
                  ( ordered_pair(X12,X11) = X8
                  & in(X11,X0)
                  & in(X12,X2) )
              | in(X8,X1) ) ) ) ),
    inference(rectify,[],[f23]) ).

fof(f23,plain,
    ! [X1,X0,X2] :
      ( ( ! [X3] :
            ( ( in(X3,X0)
              | ! [X5,X4] :
                  ( ordered_pair(X4,X5) != X3
                  | ~ in(X5,X1)
                  | ~ in(X4,X2) ) )
            & ( ? [X5,X4] :
                  ( ordered_pair(X4,X5) = X3
                  & in(X5,X1)
                  & in(X4,X2) )
              | ~ in(X3,X0) ) )
        | cartesian_product2(X2,X1) != X0 )
      & ( cartesian_product2(X2,X1) = X0
        | ? [X3] :
            ( ( ! [X5,X4] :
                  ( ordered_pair(X4,X5) != X3
                  | ~ in(X5,X1)
                  | ~ in(X4,X2) )
              | ~ in(X3,X0) )
            & ( ? [X5,X4] :
                  ( ordered_pair(X4,X5) = X3
                  & in(X5,X1)
                  & in(X4,X2) )
              | in(X3,X0) ) ) ) ),
    inference(nnf_transformation,[],[f11]) ).

fof(f11,plain,
    ! [X1,X0,X2] :
      ( ! [X3] :
          ( in(X3,X0)
        <=> ? [X5,X4] :
              ( ordered_pair(X4,X5) = X3
              & in(X5,X1)
              & in(X4,X2) ) )
    <=> cartesian_product2(X2,X1) = X0 ),
    inference(rectify,[],[f3]) ).

fof(f3,axiom,
    ! [X2,X1,X0] :
      ( cartesian_product2(X0,X1) = X2
    <=> ! [X3] :
          ( ? [X4,X5] :
              ( in(X5,X1)
              & ordered_pair(X4,X5) = X3
              & in(X4,X0) )
        <=> in(X3,X2) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_zfmisc_1) ).

fof(f102,plain,
    ! [X2,X3] : sK2 != unordered_pair(singleton(X3),unordered_pair(X2,X3)),
    inference(superposition,[],[f71,f36]) ).

fof(f71,plain,
    ! [X2,X3] : unordered_pair(unordered_pair(X3,X2),singleton(X2)) != sK2,
    inference(superposition,[],[f47,f36]) ).

fof(f47,plain,
    ! [X3,X4] : unordered_pair(unordered_pair(X4,X3),singleton(X4)) != sK2,
    inference(definition_unfolding,[],[f31,f34]) ).

fof(f31,plain,
    ! [X3,X4] : sK2 != ordered_pair(X4,X3),
    inference(cnf_transformation,[],[f18]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem    : SET949+1 : TPTP v8.1.0. Released v3.2.0.
% 0.10/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.13/0.34  % Computer : n007.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit   : 300
% 0.13/0.34  % WCLimit    : 300
% 0.13/0.34  % DateTime   : Tue Aug 30 14:17:01 EDT 2022
% 0.13/0.35  % CPUTime    : 
% 0.20/0.51  % (8523)lrs-11_1:1_nm=0:sac=on:sd=4:ss=axioms:st=3.0:i=24:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/24Mi)
% 0.20/0.52  % (8523)First to succeed.
% 0.20/0.52  % (8501)lrs+2_1:1_lcm=reverse:lma=on:sos=all:spb=goal_then_units:ss=included:urr=on:i=39:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/39Mi)
% 0.20/0.52  % (8523)Refutation found. Thanks to Tanya!
% 0.20/0.52  % SZS status Theorem for theBenchmark
% 0.20/0.52  % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.52  % (8523)------------------------------
% 0.20/0.52  % (8523)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.52  % (8523)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.52  % (8523)Termination reason: Refutation
% 0.20/0.52  
% 0.20/0.52  % (8523)Memory used [KB]: 6012
% 0.20/0.52  % (8523)Time elapsed: 0.112 s
% 0.20/0.52  % (8523)Instructions burned: 6 (million)
% 0.20/0.52  % (8523)------------------------------
% 0.20/0.52  % (8523)------------------------------
% 0.20/0.52  % (8493)Success in time 0.162 s
%------------------------------------------------------------------------------