TSTP Solution File: SEU019+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SEU019+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_sat --cores 0 -t %d %s

% Computer : n015.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 18:31:45 EDT 2022

% Result   : Theorem 0.11s 0.41s
% Output   : Refutation 0.11s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   25
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   64 (  24 unt;   0 def)
%            Number of atoms       :  232 (  84 equ)
%            Maximal formula atoms :   12 (   3 avg)
%            Number of connectives :  281 ( 113   ~; 110   |;  42   &)
%                                         (   7 <=>;   9  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   12 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   2 con; 0-2 aty)
%            Number of variables   :   80 (  68   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f416,plain,
    $false,
    inference(subsumption_resolution,[],[f415,f167]) ).

fof(f167,plain,
    relation(sF13),
    inference(superposition,[],[f123,f152]) ).

fof(f152,plain,
    sF13 = identity_relation(sK9),
    introduced(function_definition,[]) ).

fof(f123,plain,
    ! [X0] : relation(identity_relation(X0)),
    inference(cnf_transformation,[],[f10]) ).

fof(f10,axiom,
    ! [X0] :
      ( function(identity_relation(X0))
      & relation(identity_relation(X0)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc2_funct_1) ).

fof(f415,plain,
    ~ relation(sF13),
    inference(subsumption_resolution,[],[f414,f166]) ).

fof(f166,plain,
    function(sF13),
    inference(superposition,[],[f124,f152]) ).

fof(f124,plain,
    ! [X0] : function(identity_relation(X0)),
    inference(cnf_transformation,[],[f10]) ).

fof(f414,plain,
    ( ~ function(sF13)
    | ~ relation(sF13) ),
    inference(subsumption_resolution,[],[f413,f153]) ).

fof(f153,plain,
    ~ one_to_one(sF13),
    inference(definition_folding,[],[f132,f152]) ).

fof(f132,plain,
    ~ one_to_one(identity_relation(sK9)),
    inference(cnf_transformation,[],[f90]) ).

fof(f90,plain,
    ~ one_to_one(identity_relation(sK9)),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK9])],[f60,f89]) ).

fof(f89,plain,
    ( ? [X0] : ~ one_to_one(identity_relation(X0))
   => ~ one_to_one(identity_relation(sK9)) ),
    introduced(choice_axiom,[]) ).

fof(f60,plain,
    ? [X0] : ~ one_to_one(identity_relation(X0)),
    inference(ennf_transformation,[],[f29]) ).

fof(f29,negated_conjecture,
    ~ ! [X0] : one_to_one(identity_relation(X0)),
    inference(negated_conjecture,[],[f28]) ).

fof(f28,conjecture,
    ! [X0] : one_to_one(identity_relation(X0)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t52_funct_1) ).

fof(f413,plain,
    ( one_to_one(sF13)
    | ~ relation(sF13)
    | ~ function(sF13) ),
    inference(trivial_inequality_removal,[],[f411]) ).

fof(f411,plain,
    ( ~ function(sF13)
    | one_to_one(sF13)
    | ~ relation(sF13)
    | sK10(sF13) != sK10(sF13) ),
    inference(superposition,[],[f135,f359]) ).

fof(f359,plain,
    sK10(sF13) = sK11(sF13),
    inference(backward_demodulation,[],[f344,f358]) ).

fof(f358,plain,
    apply(sF13,sK10(sF13)) = sK10(sF13),
    inference(forward_demodulation,[],[f354,f152]) ).

fof(f354,plain,
    apply(identity_relation(sK9),sK10(sF13)) = sK10(sF13),
    inference(resolution,[],[f258,f157]) ).

fof(f157,plain,
    ! [X3,X0] :
      ( ~ in(X3,X0)
      | apply(identity_relation(X0),X3) = X3 ),
    inference(subsumption_resolution,[],[f156,f123]) ).

fof(f156,plain,
    ! [X3,X0] :
      ( ~ in(X3,X0)
      | apply(identity_relation(X0),X3) = X3
      | ~ relation(identity_relation(X0)) ),
    inference(subsumption_resolution,[],[f151,f124]) ).

fof(f151,plain,
    ! [X3,X0] :
      ( ~ function(identity_relation(X0))
      | ~ relation(identity_relation(X0))
      | ~ in(X3,X0)
      | apply(identity_relation(X0),X3) = X3 ),
    inference(equality_resolution,[],[f107]) ).

fof(f107,plain,
    ! [X3,X0,X1] :
      ( ~ function(X1)
      | ~ relation(X1)
      | ~ in(X3,X0)
      | apply(X1,X3) = X3
      | identity_relation(X0) != X1 ),
    inference(cnf_transformation,[],[f72]) ).

fof(f72,plain,
    ! [X0,X1] :
      ( ~ function(X1)
      | ~ relation(X1)
      | ( ( identity_relation(X0) = X1
          | relation_dom(X1) != X0
          | ( in(sK1(X0,X1),X0)
            & apply(X1,sK1(X0,X1)) != sK1(X0,X1) ) )
        & ( ( relation_dom(X1) = X0
            & ! [X3] :
                ( ~ in(X3,X0)
                | apply(X1,X3) = X3 ) )
          | identity_relation(X0) != X1 ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK1])],[f70,f71]) ).

fof(f71,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( in(X2,X0)
          & apply(X1,X2) != X2 )
     => ( in(sK1(X0,X1),X0)
        & apply(X1,sK1(X0,X1)) != sK1(X0,X1) ) ),
    introduced(choice_axiom,[]) ).

fof(f70,plain,
    ! [X0,X1] :
      ( ~ function(X1)
      | ~ relation(X1)
      | ( ( identity_relation(X0) = X1
          | relation_dom(X1) != X0
          | ? [X2] :
              ( in(X2,X0)
              & apply(X1,X2) != X2 ) )
        & ( ( relation_dom(X1) = X0
            & ! [X3] :
                ( ~ in(X3,X0)
                | apply(X1,X3) = X3 ) )
          | identity_relation(X0) != X1 ) ) ),
    inference(rectify,[],[f69]) ).

fof(f69,plain,
    ! [X1,X0] :
      ( ~ function(X0)
      | ~ relation(X0)
      | ( ( identity_relation(X1) = X0
          | relation_dom(X0) != X1
          | ? [X2] :
              ( in(X2,X1)
              & apply(X0,X2) != X2 ) )
        & ( ( relation_dom(X0) = X1
            & ! [X2] :
                ( ~ in(X2,X1)
                | apply(X0,X2) = X2 ) )
          | identity_relation(X1) != X0 ) ) ),
    inference(flattening,[],[f68]) ).

fof(f68,plain,
    ! [X1,X0] :
      ( ~ function(X0)
      | ~ relation(X0)
      | ( ( identity_relation(X1) = X0
          | relation_dom(X0) != X1
          | ? [X2] :
              ( in(X2,X1)
              & apply(X0,X2) != X2 ) )
        & ( ( relation_dom(X0) = X1
            & ! [X2] :
                ( ~ in(X2,X1)
                | apply(X0,X2) = X2 ) )
          | identity_relation(X1) != X0 ) ) ),
    inference(nnf_transformation,[],[f50]) ).

fof(f50,plain,
    ! [X1,X0] :
      ( ~ function(X0)
      | ~ relation(X0)
      | ( identity_relation(X1) = X0
      <=> ( relation_dom(X0) = X1
          & ! [X2] :
              ( ~ in(X2,X1)
              | apply(X0,X2) = X2 ) ) ) ),
    inference(flattening,[],[f49]) ).

fof(f49,plain,
    ! [X1,X0] :
      ( ( identity_relation(X1) = X0
      <=> ( relation_dom(X0) = X1
          & ! [X2] :
              ( ~ in(X2,X1)
              | apply(X0,X2) = X2 ) ) )
      | ~ function(X0)
      | ~ relation(X0) ),
    inference(ennf_transformation,[],[f39]) ).

fof(f39,plain,
    ! [X1,X0] :
      ( ( function(X0)
        & relation(X0) )
     => ( ( ! [X2] :
              ( in(X2,X1)
             => apply(X0,X2) = X2 )
          & relation_dom(X0) = X1 )
      <=> identity_relation(X1) = X0 ) ),
    inference(rectify,[],[f25]) ).

fof(f25,axiom,
    ! [X1,X0] :
      ( ( function(X1)
        & relation(X1) )
     => ( ( ! [X2] :
              ( in(X2,X0)
             => apply(X1,X2) = X2 )
          & relation_dom(X1) = X0 )
      <=> identity_relation(X0) = X1 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t34_funct_1) ).

fof(f258,plain,
    in(sK10(sF13),sK9),
    inference(subsumption_resolution,[],[f257,f153]) ).

fof(f257,plain,
    ( one_to_one(sF13)
    | in(sK10(sF13),sK9) ),
    inference(subsumption_resolution,[],[f256,f167]) ).

fof(f256,plain,
    ( in(sK10(sF13),sK9)
    | ~ relation(sF13)
    | one_to_one(sF13) ),
    inference(subsumption_resolution,[],[f255,f166]) ).

fof(f255,plain,
    ( in(sK10(sF13),sK9)
    | ~ function(sF13)
    | ~ relation(sF13)
    | one_to_one(sF13) ),
    inference(superposition,[],[f136,f185]) ).

fof(f185,plain,
    relation_dom(sF13) = sK9,
    inference(superposition,[],[f155,f152]) ).

fof(f155,plain,
    ! [X0] : relation_dom(identity_relation(X0)) = X0,
    inference(subsumption_resolution,[],[f154,f123]) ).

fof(f154,plain,
    ! [X0] :
      ( ~ relation(identity_relation(X0))
      | relation_dom(identity_relation(X0)) = X0 ),
    inference(subsumption_resolution,[],[f150,f124]) ).

fof(f150,plain,
    ! [X0] :
      ( ~ function(identity_relation(X0))
      | relation_dom(identity_relation(X0)) = X0
      | ~ relation(identity_relation(X0)) ),
    inference(equality_resolution,[],[f108]) ).

fof(f108,plain,
    ! [X0,X1] :
      ( ~ function(X1)
      | ~ relation(X1)
      | relation_dom(X1) = X0
      | identity_relation(X0) != X1 ),
    inference(cnf_transformation,[],[f72]) ).

fof(f136,plain,
    ! [X0] :
      ( in(sK10(X0),relation_dom(X0))
      | ~ relation(X0)
      | ~ function(X0)
      | one_to_one(X0) ),
    inference(cnf_transformation,[],[f94]) ).

fof(f94,plain,
    ! [X0] :
      ( ~ function(X0)
      | ( ( ! [X1,X2] :
              ( ~ in(X1,relation_dom(X0))
              | X1 = X2
              | apply(X0,X1) != apply(X0,X2)
              | ~ in(X2,relation_dom(X0)) )
          | ~ one_to_one(X0) )
        & ( one_to_one(X0)
          | ( in(sK10(X0),relation_dom(X0))
            & sK11(X0) != sK10(X0)
            & apply(X0,sK10(X0)) = apply(X0,sK11(X0))
            & in(sK11(X0),relation_dom(X0)) ) ) )
      | ~ relation(X0) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK10,sK11])],[f92,f93]) ).

fof(f93,plain,
    ! [X0] :
      ( ? [X3,X4] :
          ( in(X3,relation_dom(X0))
          & X3 != X4
          & apply(X0,X3) = apply(X0,X4)
          & in(X4,relation_dom(X0)) )
     => ( in(sK10(X0),relation_dom(X0))
        & sK11(X0) != sK10(X0)
        & apply(X0,sK10(X0)) = apply(X0,sK11(X0))
        & in(sK11(X0),relation_dom(X0)) ) ),
    introduced(choice_axiom,[]) ).

fof(f92,plain,
    ! [X0] :
      ( ~ function(X0)
      | ( ( ! [X1,X2] :
              ( ~ in(X1,relation_dom(X0))
              | X1 = X2
              | apply(X0,X1) != apply(X0,X2)
              | ~ in(X2,relation_dom(X0)) )
          | ~ one_to_one(X0) )
        & ( one_to_one(X0)
          | ? [X3,X4] :
              ( in(X3,relation_dom(X0))
              & X3 != X4
              & apply(X0,X3) = apply(X0,X4)
              & in(X4,relation_dom(X0)) ) ) )
      | ~ relation(X0) ),
    inference(rectify,[],[f91]) ).

fof(f91,plain,
    ! [X0] :
      ( ~ function(X0)
      | ( ( ! [X2,X1] :
              ( ~ in(X2,relation_dom(X0))
              | X1 = X2
              | apply(X0,X1) != apply(X0,X2)
              | ~ in(X1,relation_dom(X0)) )
          | ~ one_to_one(X0) )
        & ( one_to_one(X0)
          | ? [X2,X1] :
              ( in(X2,relation_dom(X0))
              & X1 != X2
              & apply(X0,X1) = apply(X0,X2)
              & in(X1,relation_dom(X0)) ) ) )
      | ~ relation(X0) ),
    inference(nnf_transformation,[],[f63]) ).

fof(f63,plain,
    ! [X0] :
      ( ~ function(X0)
      | ( ! [X2,X1] :
            ( ~ in(X2,relation_dom(X0))
            | X1 = X2
            | apply(X0,X1) != apply(X0,X2)
            | ~ in(X1,relation_dom(X0)) )
      <=> one_to_one(X0) )
      | ~ relation(X0) ),
    inference(flattening,[],[f62]) ).

fof(f62,plain,
    ! [X0] :
      ( ( one_to_one(X0)
      <=> ! [X2,X1] :
            ( X1 = X2
            | ~ in(X1,relation_dom(X0))
            | ~ in(X2,relation_dom(X0))
            | apply(X0,X1) != apply(X0,X2) ) )
      | ~ function(X0)
      | ~ relation(X0) ),
    inference(ennf_transformation,[],[f4]) ).

fof(f4,axiom,
    ! [X0] :
      ( ( function(X0)
        & relation(X0) )
     => ( one_to_one(X0)
      <=> ! [X2,X1] :
            ( ( in(X1,relation_dom(X0))
              & in(X2,relation_dom(X0))
              & apply(X0,X1) = apply(X0,X2) )
           => X1 = X2 ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d8_funct_1) ).

fof(f344,plain,
    apply(sF13,sK10(sF13)) = sK11(sF13),
    inference(backward_demodulation,[],[f296,f343]) ).

fof(f343,plain,
    sK11(sF13) = apply(sF13,sK11(sF13)),
    inference(forward_demodulation,[],[f339,f152]) ).

fof(f339,plain,
    sK11(sF13) = apply(identity_relation(sK9),sK11(sF13)),
    inference(resolution,[],[f249,f157]) ).

fof(f249,plain,
    in(sK11(sF13),sK9),
    inference(subsumption_resolution,[],[f248,f166]) ).

fof(f248,plain,
    ( in(sK11(sF13),sK9)
    | ~ function(sF13) ),
    inference(subsumption_resolution,[],[f247,f153]) ).

fof(f247,plain,
    ( one_to_one(sF13)
    | ~ function(sF13)
    | in(sK11(sF13),sK9) ),
    inference(subsumption_resolution,[],[f244,f167]) ).

fof(f244,plain,
    ( ~ relation(sF13)
    | one_to_one(sF13)
    | ~ function(sF13)
    | in(sK11(sF13),sK9) ),
    inference(superposition,[],[f133,f185]) ).

fof(f133,plain,
    ! [X0] :
      ( in(sK11(X0),relation_dom(X0))
      | ~ function(X0)
      | ~ relation(X0)
      | one_to_one(X0) ),
    inference(cnf_transformation,[],[f94]) ).

fof(f296,plain,
    apply(sF13,sK10(sF13)) = apply(sF13,sK11(sF13)),
    inference(subsumption_resolution,[],[f295,f153]) ).

fof(f295,plain,
    ( apply(sF13,sK10(sF13)) = apply(sF13,sK11(sF13))
    | one_to_one(sF13) ),
    inference(subsumption_resolution,[],[f267,f166]) ).

fof(f267,plain,
    ( ~ function(sF13)
    | one_to_one(sF13)
    | apply(sF13,sK10(sF13)) = apply(sF13,sK11(sF13)) ),
    inference(resolution,[],[f134,f167]) ).

fof(f134,plain,
    ! [X0] :
      ( ~ relation(X0)
      | apply(X0,sK10(X0)) = apply(X0,sK11(X0))
      | ~ function(X0)
      | one_to_one(X0) ),
    inference(cnf_transformation,[],[f94]) ).

fof(f135,plain,
    ! [X0] :
      ( sK11(X0) != sK10(X0)
      | ~ function(X0)
      | ~ relation(X0)
      | one_to_one(X0) ),
    inference(cnf_transformation,[],[f94]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.07  % Problem    : SEU019+1 : TPTP v8.1.0. Released v3.2.0.
% 0.00/0.07  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.07/0.26  % Computer : n015.cluster.edu
% 0.07/0.26  % Model    : x86_64 x86_64
% 0.07/0.26  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.26  % Memory   : 8042.1875MB
% 0.07/0.26  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.07/0.26  % CPULimit   : 300
% 0.07/0.26  % WCLimit    : 300
% 0.07/0.26  % DateTime   : Tue Aug 30 14:46:35 EDT 2022
% 0.07/0.26  % CPUTime    : 
% 0.11/0.36  % (6936)ott+10_1:5_bd=off:tgt=full:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/99Mi)
% 0.11/0.38  % (6947)ott+10_1:1_kws=precedence:tgt=ground:i=482:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/482Mi)
% 0.11/0.38  % (6928)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=48:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/48Mi)
% 0.11/0.38  % (6939)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/99Mi)
% 0.11/0.39  % (6947)First to succeed.
% 0.11/0.39  % (6931)dis+2_1:64_add=large:bce=on:bd=off:i=2:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/2Mi)
% 0.11/0.39  % (6931)Instruction limit reached!
% 0.11/0.39  % (6931)------------------------------
% 0.11/0.39  % (6931)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.11/0.40  % (6946)ott+11_1:1_drc=off:nwc=5.0:slsq=on:slsqc=1:spb=goal_then_units:to=lpo:i=467:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/467Mi)
% 0.11/0.40  % (6944)ott+3_1:1_gsp=on:lcm=predicate:i=138:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/138Mi)
% 0.11/0.40  % (6937)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/68Mi)
% 0.11/0.40  % (6926)ott+10_1:32_bd=off:fsr=off:newcnf=on:tgt=full:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 0.11/0.40  % (6923)fmb+10_1:1_bce=on:fmbsr=1.5:nm=4:skr=on:i=191324:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/191324Mi)
% 0.11/0.40  % (6940)fmb+10_1:1_bce=on:i=59:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/59Mi)
% 0.11/0.40  % (6927)ott+33_1:4_s2a=on:tgt=ground:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 0.11/0.40  % (6938)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=75:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/75Mi)
% 0.11/0.41  % (6932)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 (3000ds/51Mi)
% 0.11/0.41  % (6924)ott+10_1:32_abs=on:br=off:urr=ec_only:i=50:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/50Mi)
% 0.11/0.41  % (6931)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.11/0.41  % (6931)Termination reason: Unknown
% 0.11/0.41  % (6931)Termination phase: Saturation
% 0.11/0.41  
% 0.11/0.41  % (6931)Memory used [KB]: 1023
% 0.11/0.41  % (6931)Time elapsed: 0.003 s
% 0.11/0.41  % (6931)Instructions burned: 3 (million)
% 0.11/0.41  % (6931)------------------------------
% 0.11/0.41  % (6931)------------------------------
% 0.11/0.41  TRYING [1]
% 0.11/0.41  % (6924)Refutation not found, incomplete strategy% (6924)------------------------------
% 0.11/0.41  % (6924)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.11/0.41  % (6924)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.11/0.41  % (6924)Termination reason: Refutation not found, incomplete strategy
% 0.11/0.41  
% 0.11/0.41  % (6924)Memory used [KB]: 5500
% 0.11/0.41  % (6924)Time elapsed: 0.099 s
% 0.11/0.41  % (6924)Instructions burned: 3 (million)
% 0.11/0.41  % (6924)------------------------------
% 0.11/0.41  % (6924)------------------------------
% 0.11/0.41  TRYING [2]
% 0.11/0.41  TRYING [1]
% 0.11/0.41  TRYING [3]
% 0.11/0.41  % (6947)Refutation found. Thanks to Tanya!
% 0.11/0.41  % SZS status Theorem for theBenchmark
% 0.11/0.41  % SZS output start Proof for theBenchmark
% See solution above
% 0.11/0.41  % (6947)------------------------------
% 0.11/0.41  % (6947)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.11/0.41  % (6947)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.11/0.41  % (6947)Termination reason: Refutation
% 0.11/0.41  
% 0.11/0.41  % (6947)Memory used [KB]: 5628
% 0.11/0.41  % (6947)Time elapsed: 0.088 s
% 0.11/0.41  % (6947)Instructions burned: 8 (million)
% 0.11/0.41  % (6947)------------------------------
% 0.11/0.41  % (6947)------------------------------
% 0.11/0.41  % (6921)Success in time 0.143 s
%------------------------------------------------------------------------------