TSTP Solution File: SET980+1 by Vampire---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : SET980+1 : TPTP v8.1.2. Bugfixed v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Aug 31 15:46:37 EDT 2023

% Result   : Theorem 0.23s 0.45s
% Output   : Refutation 0.23s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :   16
% Syntax   : Number of formulae    :   90 (   7 unt;   0 def)
%            Number of atoms       :  272 (  71 equ)
%            Maximal formula atoms :   10 (   3 avg)
%            Number of connectives :  326 ( 144   ~; 134   |;  29   &)
%                                         (  12 <=>;   6  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :   12 (  10 usr;  10 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   5 con; 0-2 aty)
%            Number of variables   :  114 (;  96   !;  18   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f498,plain,
    $false,
    inference(avatar_sat_refutation,[],[f65,f131,f138,f145,f158,f189,f279,f451,f489,f496]) ).

fof(f496,plain,
    ( spl8_12
    | spl8_9
    | ~ spl8_7
    | ~ spl8_11 ),
    inference(avatar_split_clause,[],[f495,f156,f129,f136,f160]) ).

fof(f160,plain,
    ( spl8_12
  <=> ! [X7] :
        ( ~ in(X7,sK2)
        | in(X7,sK0) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_12])]) ).

fof(f136,plain,
    ( spl8_9
  <=> ! [X10] : ~ in(X10,sK1) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_9])]) ).

fof(f129,plain,
    ( spl8_7
  <=> ! [X8] :
        ( ~ in(X8,sK1)
        | in(X8,sK3) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_7])]) ).

fof(f156,plain,
    ( spl8_11
  <=> ! [X4] :
        ( ~ in(X4,sK3)
        | in(X4,sK1) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_11])]) ).

fof(f495,plain,
    ( ! [X6,X7] :
        ( ~ in(X6,sK1)
        | ~ in(X7,sK2)
        | in(X7,sK0) )
    | ~ spl8_7
    | ~ spl8_11 ),
    inference(forward_demodulation,[],[f350,f369]) ).

fof(f369,plain,
    ( sK1 = sK3
    | ~ spl8_7
    | ~ spl8_11 ),
    inference(subsumption_resolution,[],[f356,f296]) ).

fof(f296,plain,
    ( ! [X1] :
        ( in(sK5(X1,sK3),sK1)
        | sK3 = X1
        | in(sK5(X1,sK3),X1) )
    | ~ spl8_11 ),
    inference(resolution,[],[f157,f46]) ).

fof(f46,plain,
    ! [X0,X1] :
      ( in(sK5(X0,X1),X1)
      | X0 = X1
      | in(sK5(X0,X1),X0) ),
    inference(cnf_transformation,[],[f26]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ( ( ~ in(sK5(X0,X1),X1)
          | ~ in(sK5(X0,X1),X0) )
        & ( in(sK5(X0,X1),X1)
          | in(sK5(X0,X1),X0) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK5])],[f24,f25]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ( ~ in(X2,X1)
            | ~ in(X2,X0) )
          & ( in(X2,X1)
            | in(X2,X0) ) )
     => ( ( ~ in(sK5(X0,X1),X1)
          | ~ in(sK5(X0,X1),X0) )
        & ( in(sK5(X0,X1),X1)
          | in(sK5(X0,X1),X0) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f24,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ? [X2] :
          ( ( ~ in(X2,X1)
            | ~ in(X2,X0) )
          & ( in(X2,X1)
            | in(X2,X0) ) ) ),
    inference(nnf_transformation,[],[f17]) ).

fof(f17,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ? [X2] :
          ( in(X2,X0)
        <~> in(X2,X1) ) ),
    inference(ennf_transformation,[],[f13]) ).

fof(f13,axiom,
    ! [X0,X1] :
      ( ! [X2] :
          ( in(X2,X0)
        <=> in(X2,X1) )
     => X0 = X1 ),
    file('/export/starexec/sandbox2/tmp/tmp.HDnLT5N38I/Vampire---4.8_26521',t2_tarski) ).

fof(f157,plain,
    ( ! [X4] :
        ( ~ in(X4,sK3)
        | in(X4,sK1) )
    | ~ spl8_11 ),
    inference(avatar_component_clause,[],[f156]) ).

fof(f356,plain,
    ( ~ in(sK5(sK1,sK3),sK1)
    | sK1 = sK3
    | ~ spl8_7 ),
    inference(factoring,[],[f214]) ).

fof(f214,plain,
    ( ! [X2] :
        ( ~ in(sK5(X2,sK3),sK1)
        | ~ in(sK5(X2,sK3),X2)
        | sK3 = X2 )
    | ~ spl8_7 ),
    inference(resolution,[],[f130,f47]) ).

fof(f47,plain,
    ! [X0,X1] :
      ( ~ in(sK5(X0,X1),X1)
      | ~ in(sK5(X0,X1),X0)
      | X0 = X1 ),
    inference(cnf_transformation,[],[f26]) ).

fof(f130,plain,
    ( ! [X8] :
        ( in(X8,sK3)
        | ~ in(X8,sK1) )
    | ~ spl8_7 ),
    inference(avatar_component_clause,[],[f129]) ).

fof(f350,plain,
    ! [X6,X7] :
      ( ~ in(X6,sK3)
      | ~ in(X7,sK2)
      | in(X7,sK0) ),
    inference(resolution,[],[f124,f51]) ).

fof(f51,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
      | in(X0,X2) ),
    inference(cnf_transformation,[],[f30]) ).

fof(f30,plain,
    ! [X0,X1,X2,X3] :
      ( ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
        | ~ in(X1,X3)
        | ~ in(X0,X2) )
      & ( ( in(X1,X3)
          & in(X0,X2) )
        | ~ in(ordered_pair(X0,X1),cartesian_product2(X2,X3)) ) ),
    inference(flattening,[],[f29]) ).

fof(f29,plain,
    ! [X0,X1,X2,X3] :
      ( ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
        | ~ in(X1,X3)
        | ~ in(X0,X2) )
      & ( ( in(X1,X3)
          & in(X0,X2) )
        | ~ in(ordered_pair(X0,X1),cartesian_product2(X2,X3)) ) ),
    inference(nnf_transformation,[],[f7]) ).

fof(f7,axiom,
    ! [X0,X1,X2,X3] :
      ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
    <=> ( in(X1,X3)
        & in(X0,X2) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.HDnLT5N38I/Vampire---4.8_26521',l55_zfmisc_1) ).

fof(f124,plain,
    ! [X6,X7] :
      ( in(ordered_pair(X6,X7),cartesian_product2(sK0,sK1))
      | ~ in(X7,sK3)
      | ~ in(X6,sK2) ),
    inference(superposition,[],[f53,f35]) ).

fof(f35,plain,
    cartesian_product2(sK2,sK3) = cartesian_product2(sK0,sK1),
    inference(cnf_transformation,[],[f19]) ).

fof(f19,plain,
    ( ( sK1 != sK3
      | sK0 != sK2 )
    & empty_set != sK1
    & empty_set != sK0
    & cartesian_product2(sK2,sK3) = cartesian_product2(sK0,sK1) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3])],[f15,f18]) ).

fof(f18,plain,
    ( ? [X0,X1,X2,X3] :
        ( ( X1 != X3
          | X0 != X2 )
        & empty_set != X1
        & empty_set != X0
        & cartesian_product2(X2,X3) = cartesian_product2(X0,X1) )
   => ( ( sK1 != sK3
        | sK0 != sK2 )
      & empty_set != sK1
      & empty_set != sK0
      & cartesian_product2(sK2,sK3) = cartesian_product2(sK0,sK1) ) ),
    introduced(choice_axiom,[]) ).

fof(f15,plain,
    ? [X0,X1,X2,X3] :
      ( ( X1 != X3
        | X0 != X2 )
      & empty_set != X1
      & empty_set != X0
      & cartesian_product2(X2,X3) = cartesian_product2(X0,X1) ),
    inference(flattening,[],[f14]) ).

fof(f14,plain,
    ? [X0,X1,X2,X3] :
      ( ( X1 != X3
        | X0 != X2 )
      & empty_set != X1
      & empty_set != X0
      & cartesian_product2(X2,X3) = cartesian_product2(X0,X1) ),
    inference(ennf_transformation,[],[f12]) ).

fof(f12,negated_conjecture,
    ~ ! [X0,X1,X2,X3] :
        ( cartesian_product2(X2,X3) = cartesian_product2(X0,X1)
       => ( ( X1 = X3
            & X0 = X2 )
          | empty_set = X1
          | empty_set = X0 ) ),
    inference(negated_conjecture,[],[f11]) ).

fof(f11,conjecture,
    ! [X0,X1,X2,X3] :
      ( cartesian_product2(X2,X3) = cartesian_product2(X0,X1)
     => ( ( X1 = X3
          & X0 = X2 )
        | empty_set = X1
        | empty_set = X0 ) ),
    file('/export/starexec/sandbox2/tmp/tmp.HDnLT5N38I/Vampire---4.8_26521',t134_zfmisc_1) ).

fof(f53,plain,
    ! [X2,X3,X0,X1] :
      ( in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
      | ~ in(X1,X3)
      | ~ in(X0,X2) ),
    inference(cnf_transformation,[],[f30]) ).

fof(f489,plain,
    ( spl8_2
    | ~ spl8_7
    | ~ spl8_11 ),
    inference(avatar_contradiction_clause,[],[f488]) ).

fof(f488,plain,
    ( $false
    | spl8_2
    | ~ spl8_7
    | ~ spl8_11 ),
    inference(subsumption_resolution,[],[f64,f369]) ).

fof(f64,plain,
    ( sK1 != sK3
    | spl8_2 ),
    inference(avatar_component_clause,[],[f63]) ).

fof(f63,plain,
    ( spl8_2
  <=> sK1 = sK3 ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_2])]) ).

fof(f451,plain,
    ( spl8_1
    | ~ spl8_8
    | ~ spl8_12 ),
    inference(avatar_contradiction_clause,[],[f450]) ).

fof(f450,plain,
    ( $false
    | spl8_1
    | ~ spl8_8
    | ~ spl8_12 ),
    inference(subsumption_resolution,[],[f447,f443]) ).

fof(f443,plain,
    ( ~ in(sK5(sK2,sK0),sK0)
    | spl8_1
    | ~ spl8_8 ),
    inference(subsumption_resolution,[],[f438,f61]) ).

fof(f61,plain,
    ( sK0 != sK2
    | spl8_1 ),
    inference(avatar_component_clause,[],[f60]) ).

fof(f60,plain,
    ( spl8_1
  <=> sK0 = sK2 ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_1])]) ).

fof(f438,plain,
    ( ~ in(sK5(sK2,sK0),sK0)
    | sK0 = sK2
    | ~ spl8_8 ),
    inference(factoring,[],[f293]) ).

fof(f293,plain,
    ( ! [X3] :
        ( ~ in(sK5(sK2,X3),sK0)
        | ~ in(sK5(sK2,X3),X3)
        | sK2 = X3 )
    | ~ spl8_8 ),
    inference(resolution,[],[f134,f47]) ).

fof(f134,plain,
    ( ! [X11] :
        ( in(X11,sK2)
        | ~ in(X11,sK0) )
    | ~ spl8_8 ),
    inference(avatar_component_clause,[],[f133]) ).

fof(f133,plain,
    ( spl8_8
  <=> ! [X11] :
        ( ~ in(X11,sK0)
        | in(X11,sK2) ) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_8])]) ).

fof(f447,plain,
    ( in(sK5(sK2,sK0),sK0)
    | spl8_1
    | ~ spl8_8
    | ~ spl8_12 ),
    inference(resolution,[],[f445,f161]) ).

fof(f161,plain,
    ( ! [X7] :
        ( ~ in(X7,sK2)
        | in(X7,sK0) )
    | ~ spl8_12 ),
    inference(avatar_component_clause,[],[f160]) ).

fof(f445,plain,
    ( in(sK5(sK2,sK0),sK2)
    | spl8_1
    | ~ spl8_8 ),
    inference(subsumption_resolution,[],[f444,f61]) ).

fof(f444,plain,
    ( sK0 = sK2
    | in(sK5(sK2,sK0),sK2)
    | spl8_1
    | ~ spl8_8 ),
    inference(resolution,[],[f443,f46]) ).

fof(f279,plain,
    ~ spl8_9,
    inference(avatar_contradiction_clause,[],[f278]) ).

fof(f278,plain,
    ( $false
    | ~ spl8_9 ),
    inference(subsumption_resolution,[],[f275,f37]) ).

fof(f37,plain,
    empty_set != sK1,
    inference(cnf_transformation,[],[f19]) ).

fof(f275,plain,
    ( empty_set = sK1
    | ~ spl8_9 ),
    inference(resolution,[],[f137,f103]) ).

fof(f103,plain,
    ! [X4] :
      ( in(sK5(X4,empty_set),X4)
      | empty_set = X4 ),
    inference(resolution,[],[f46,f56]) ).

fof(f56,plain,
    ! [X2] : ~ in(X2,empty_set),
    inference(equality_resolution,[],[f40]) ).

fof(f40,plain,
    ! [X2,X0] :
      ( ~ in(X2,X0)
      | empty_set != X0 ),
    inference(cnf_transformation,[],[f23]) ).

fof(f23,plain,
    ! [X0] :
      ( ( empty_set = X0
        | in(sK4(X0),X0) )
      & ( ! [X2] : ~ in(X2,X0)
        | empty_set != X0 ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK4])],[f21,f22]) ).

fof(f22,plain,
    ! [X0] :
      ( ? [X1] : in(X1,X0)
     => in(sK4(X0),X0) ),
    introduced(choice_axiom,[]) ).

fof(f21,plain,
    ! [X0] :
      ( ( empty_set = X0
        | ? [X1] : in(X1,X0) )
      & ( ! [X2] : ~ in(X2,X0)
        | empty_set != X0 ) ),
    inference(rectify,[],[f20]) ).

fof(f20,plain,
    ! [X0] :
      ( ( empty_set = X0
        | ? [X1] : in(X1,X0) )
      & ( ! [X1] : ~ in(X1,X0)
        | empty_set != X0 ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f3,axiom,
    ! [X0] :
      ( empty_set = X0
    <=> ! [X1] : ~ in(X1,X0) ),
    file('/export/starexec/sandbox2/tmp/tmp.HDnLT5N38I/Vampire---4.8_26521',d1_xboole_0) ).

fof(f137,plain,
    ( ! [X10] : ~ in(X10,sK1)
    | ~ spl8_9 ),
    inference(avatar_component_clause,[],[f136]) ).

fof(f189,plain,
    ( ~ spl8_8
    | ~ spl8_10 ),
    inference(avatar_contradiction_clause,[],[f188]) ).

fof(f188,plain,
    ( $false
    | ~ spl8_8
    | ~ spl8_10 ),
    inference(subsumption_resolution,[],[f185,f36]) ).

fof(f36,plain,
    empty_set != sK0,
    inference(cnf_transformation,[],[f19]) ).

fof(f185,plain,
    ( empty_set = sK0
    | ~ spl8_8
    | ~ spl8_10 ),
    inference(resolution,[],[f178,f103]) ).

fof(f178,plain,
    ( ! [X11] : ~ in(X11,sK0)
    | ~ spl8_8
    | ~ spl8_10 ),
    inference(subsumption_resolution,[],[f172,f56]) ).

fof(f172,plain,
    ( ! [X11] :
        ( in(X11,empty_set)
        | ~ in(X11,sK0) )
    | ~ spl8_8
    | ~ spl8_10 ),
    inference(backward_demodulation,[],[f134,f166]) ).

fof(f166,plain,
    ( empty_set = sK2
    | ~ spl8_10 ),
    inference(resolution,[],[f154,f41]) ).

fof(f41,plain,
    ! [X0] :
      ( in(sK4(X0),X0)
      | empty_set = X0 ),
    inference(cnf_transformation,[],[f23]) ).

fof(f154,plain,
    ( ! [X5] : ~ in(X5,sK2)
    | ~ spl8_10 ),
    inference(avatar_component_clause,[],[f153]) ).

fof(f153,plain,
    ( spl8_10
  <=> ! [X5] : ~ in(X5,sK2) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_10])]) ).

fof(f158,plain,
    ( spl8_10
    | spl8_11 ),
    inference(avatar_split_clause,[],[f148,f156,f153]) ).

fof(f148,plain,
    ! [X4,X5] :
      ( ~ in(X4,sK3)
      | ~ in(X5,sK2)
      | in(X4,sK1) ),
    inference(resolution,[],[f124,f52]) ).

fof(f52,plain,
    ! [X2,X3,X0,X1] :
      ( ~ in(ordered_pair(X0,X1),cartesian_product2(X2,X3))
      | in(X1,X3) ),
    inference(cnf_transformation,[],[f30]) ).

fof(f145,plain,
    ~ spl8_6,
    inference(avatar_contradiction_clause,[],[f144]) ).

fof(f144,plain,
    ( $false
    | ~ spl8_6 ),
    inference(subsumption_resolution,[],[f141,f36]) ).

fof(f141,plain,
    ( empty_set = sK0
    | ~ spl8_6 ),
    inference(resolution,[],[f127,f103]) ).

fof(f127,plain,
    ( ! [X9] : ~ in(X9,sK0)
    | ~ spl8_6 ),
    inference(avatar_component_clause,[],[f126]) ).

fof(f126,plain,
    ( spl8_6
  <=> ! [X9] : ~ in(X9,sK0) ),
    introduced(avatar_definition,[new_symbols(naming,[spl8_6])]) ).

fof(f138,plain,
    ( spl8_8
    | spl8_9 ),
    inference(avatar_split_clause,[],[f119,f136,f133]) ).

fof(f119,plain,
    ! [X10,X11] :
      ( ~ in(X10,sK1)
      | ~ in(X11,sK0)
      | in(X11,sK2) ),
    inference(resolution,[],[f53,f73]) ).

fof(f73,plain,
    ! [X6,X7] :
      ( ~ in(ordered_pair(X6,X7),cartesian_product2(sK0,sK1))
      | in(X6,sK2) ),
    inference(superposition,[],[f51,f35]) ).

fof(f131,plain,
    ( spl8_6
    | spl8_7 ),
    inference(avatar_split_clause,[],[f118,f129,f126]) ).

fof(f118,plain,
    ! [X8,X9] :
      ( ~ in(X8,sK1)
      | ~ in(X9,sK0)
      | in(X8,sK3) ),
    inference(resolution,[],[f53,f76]) ).

fof(f76,plain,
    ! [X6,X7] :
      ( ~ in(ordered_pair(X6,X7),cartesian_product2(sK0,sK1))
      | in(X7,sK3) ),
    inference(superposition,[],[f52,f35]) ).

fof(f65,plain,
    ( ~ spl8_1
    | ~ spl8_2 ),
    inference(avatar_split_clause,[],[f38,f63,f60]) ).

fof(f38,plain,
    ( sK1 != sK3
    | sK0 != sK2 ),
    inference(cnf_transformation,[],[f19]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem    : SET980+1 : TPTP v8.1.2. Bugfixed v4.0.0.
% 0.00/0.15  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.16/0.37  % Computer : n014.cluster.edu
% 0.16/0.37  % Model    : x86_64 x86_64
% 0.16/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.37  % Memory   : 8042.1875MB
% 0.16/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.37  % CPULimit   : 300
% 0.16/0.37  % WCLimit    : 300
% 0.16/0.37  % DateTime   : Sat Aug 26 13:40:32 EDT 2023
% 0.16/0.37  % CPUTime    : 
% 0.16/0.37  This is a FOF_THM_RFO_SEQ problem
% 0.16/0.37  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/tmp/tmp.HDnLT5N38I/Vampire---4.8_26521
% 0.16/0.37  % (26724)Running in auto input_syntax mode. Trying TPTP
% 0.23/0.43  % (26730)lrs+3_20_av=off:bd=preordered:drc=off:fsd=off:fsr=off:fde=unused:irw=on:lcm=reverse:sos=theory:stl=315_961 on Vampire---4 for (961ds/0Mi)
% 0.23/0.43  % (26733)ott+1003_4:1_av=off:cond=on:drc=off:fsd=off:fsr=off:fde=none:gsp=on:nm=2:nwc=1.5:sos=all:sp=reverse_arity:tgt=full_871 on Vampire---4 for (871ds/0Mi)
% 0.23/0.43  % (26729)ott-4_11_av=off:bd=preordered:bce=on:drc=off:flr=on:fsr=off:lma=on:nwc=2.0:sp=occurrence:tgt=ground:urr=ec_only_1010 on Vampire---4 for (1010ds/0Mi)
% 0.23/0.43  % (26736)lrs-11_32_av=off:bd=off:bs=on:bsr=on:drc=off:flr=on:fsd=off:fsr=off:fde=none:gsp=on:irw=on:lcm=predicate:nm=4:sp=scramble:stl=125_825 on Vampire---4 for (825ds/0Mi)
% 0.23/0.43  % (26726)lrs+10_11_cond=on:drc=off:flr=on:fsr=off:gsp=on:gs=on:gsem=off:lma=on:msp=off:nm=4:nwc=1.5:nicw=on:sas=z3:sims=off:sp=scramble:stl=188_1169 on Vampire---4 for (1169ds/0Mi)
% 0.23/0.43  % (26728)lrs-11_28_aac=none:afr=on:anc=none:bs=on:drc=off:fde=unused:gs=on:nm=2:nwc=1.3:sp=frequency:stl=188_1092 on Vampire---4 for (1092ds/0Mi)
% 0.23/0.43  % (26740)ott+11_14_av=off:bs=on:bsr=on:cond=on:flr=on:fsd=off:fde=unused:gsp=on:nm=4:nwc=1.5:tgt=full_501 on Vampire---4 for (501ds/0Mi)
% 0.23/0.45  % (26728)First to succeed.
% 0.23/0.45  % (26728)Refutation found. Thanks to Tanya!
% 0.23/0.45  % SZS status Theorem for Vampire---4
% 0.23/0.45  % SZS output start Proof for Vampire---4
% See solution above
% 0.23/0.45  % (26728)------------------------------
% 0.23/0.45  % (26728)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.23/0.45  % (26728)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.23/0.45  % (26728)Termination reason: Refutation
% 0.23/0.45  
% 0.23/0.45  % (26728)Memory used [KB]: 10106
% 0.23/0.45  % (26728)Time elapsed: 0.018 s
% 0.23/0.45  % (26728)------------------------------
% 0.23/0.45  % (26728)------------------------------
% 0.23/0.45  % (26724)Success in time 0.079 s
% 0.23/0.46  % Vampire---4.8 exiting
%------------------------------------------------------------------------------