TSTP Solution File: SYO902_8 by SnakeForV---1.0

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%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : SYO902_8 : TPTP v8.2.0. Released v8.2.0.
% 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 : n018.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 : Mon May 22 15:45:49 EDT 2023

% Result   : Theorem 0.20s 0.48s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   22 (   6 unt;   6 typ;   0 def)
%            Number of atoms       :   60 (   0 equ)
%            Maximal formula atoms :    8 (   3 avg)
%            Number of connectives :   61 (  17   ~;  12   |;  24   &)
%                                         (   0 <=>;   8  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   5 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of types       :    2 (   1 usr)
%            Number of type conns  :    4 (   3   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-1 aty)
%            Number of variables   :   36 (;  18   !;  18   ?;  36   :)

% Comments : 
%------------------------------------------------------------------------------
tff(type_def_5,type,
    '$ki_world': $tType ).

tff(func_def_0,type,
    '$ki_local_world': '$ki_world' ).

tff(func_def_1,type,
    sK0: '$ki_world' ).

tff(func_def_2,type,
    sK1: '$ki_world' > '$ki_world' ).

tff(pred_def_1,type,
    '$ki_accessible': ( '$ki_world' * '$ki_world' ) > $o ).

tff(pred_def_2,type,
    p: '$ki_world' > $o ).

tff(f18,plain,
    $false,
    inference(unit_resulting_resolution,[],[f14,f10,f15,f9]) ).

tff(f9,plain,
    ! [X3: '$ki_world',X4: '$ki_world'] :
      ( ~ '$ki_accessible'('$ki_local_world',X3)
      | ~ '$ki_accessible'(X3,X4)
      | ~ p(X4) ),
    inference(cnf_transformation,[],[f8]) ).

tff(f8,plain,
    ( ! [X1: '$ki_world'] :
        ( ( '$ki_accessible'(X1,sK1(X1))
          & p(sK1(X1)) )
        | ~ '$ki_accessible'(sK0,X1) )
    & '$ki_accessible'('$ki_local_world',sK0)
    & ! [X3: '$ki_world'] :
        ( ~ '$ki_accessible'('$ki_local_world',X3)
        | ! [X4: '$ki_world'] :
            ( ~ '$ki_accessible'(X3,X4)
            | ~ p(X4) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f5,f7,f6]) ).

tff(f6,plain,
    ( ? [X0: '$ki_world'] :
        ( ! [X1: '$ki_world'] :
            ( ? [X2: '$ki_world'] :
                ( '$ki_accessible'(X1,X2)
                & p(X2) )
            | ~ '$ki_accessible'(X0,X1) )
        & '$ki_accessible'('$ki_local_world',X0) )
   => ( ! [X1: '$ki_world'] :
          ( ? [X2: '$ki_world'] :
              ( '$ki_accessible'(X1,X2)
              & p(X2) )
          | ~ '$ki_accessible'(sK0,X1) )
      & '$ki_accessible'('$ki_local_world',sK0) ) ),
    introduced(choice_axiom,[]) ).

tff(f7,plain,
    ! [X1: '$ki_world'] :
      ( ? [X2: '$ki_world'] :
          ( '$ki_accessible'(X1,X2)
          & p(X2) )
     => ( '$ki_accessible'(X1,sK1(X1))
        & p(sK1(X1)) ) ),
    introduced(choice_axiom,[]) ).

tff(f5,plain,
    ( ? [X0: '$ki_world'] :
        ( ! [X1: '$ki_world'] :
            ( ? [X2: '$ki_world'] :
                ( '$ki_accessible'(X1,X2)
                & p(X2) )
            | ~ '$ki_accessible'(X0,X1) )
        & '$ki_accessible'('$ki_local_world',X0) )
    & ! [X3: '$ki_world'] :
        ( ~ '$ki_accessible'('$ki_local_world',X3)
        | ! [X4: '$ki_world'] :
            ( ~ '$ki_accessible'(X3,X4)
            | ~ p(X4) ) ) ),
    inference(ennf_transformation,[],[f4]) ).

tff(f4,plain,
    ~ ( ? [X0: '$ki_world'] :
          ( '$ki_accessible'('$ki_local_world',X0)
          & ! [X1: '$ki_world'] :
              ( '$ki_accessible'(X0,X1)
             => ? [X2: '$ki_world'] :
                  ( '$ki_accessible'(X1,X2)
                  & p(X2) ) ) )
     => ? [X3: '$ki_world'] :
          ( ? [X4: '$ki_world'] :
              ( '$ki_accessible'(X3,X4)
              & p(X4) )
          & '$ki_accessible'('$ki_local_world',X3) ) ),
    inference(rectify,[],[f3]) ).

tff(f3,negated_conjecture,
    ~ ( ? [X0: '$ki_world'] :
          ( '$ki_accessible'('$ki_local_world',X0)
          & ! [X1: '$ki_world'] :
              ( '$ki_accessible'(X0,X1)
             => ? [X2: '$ki_world'] :
                  ( '$ki_accessible'(X1,X2)
                  & p(X2) ) ) )
     => ? [X0: '$ki_world'] :
          ( ? [X1: '$ki_world'] :
              ( p(X1)
              & '$ki_accessible'(X0,X1) )
          & '$ki_accessible'('$ki_local_world',X0) ) ),
    inference(negated_conjecture,[],[f2]) ).

tff(f2,conjecture,
    ( ? [X0: '$ki_world'] :
        ( '$ki_accessible'('$ki_local_world',X0)
        & ! [X1: '$ki_world'] :
            ( '$ki_accessible'(X0,X1)
           => ? [X2: '$ki_world'] :
                ( '$ki_accessible'(X1,X2)
                & p(X2) ) ) )
   => ? [X0: '$ki_world'] :
        ( ? [X1: '$ki_world'] :
            ( p(X1)
            & '$ki_accessible'(X0,X1) )
        & '$ki_accessible'('$ki_local_world',X0) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',verify) ).

tff(f15,plain,
    '$ki_accessible'(sK0,sK1(sK0)),
    inference(resolution,[],[f12,f13]) ).

tff(f13,plain,
    ! [X0: '$ki_world'] : '$ki_accessible'(X0,X0),
    inference(cnf_transformation,[],[f1]) ).

tff(f1,axiom,
    ! [X0: '$ki_world'] : '$ki_accessible'(X0,X0),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',mrel_reflexive) ).

tff(f12,plain,
    ! [X1: '$ki_world'] :
      ( ~ '$ki_accessible'(sK0,X1)
      | '$ki_accessible'(X1,sK1(X1)) ),
    inference(cnf_transformation,[],[f8]) ).

tff(f10,plain,
    '$ki_accessible'('$ki_local_world',sK0),
    inference(cnf_transformation,[],[f8]) ).

tff(f14,plain,
    p(sK1(sK0)),
    inference(resolution,[],[f11,f13]) ).

tff(f11,plain,
    ! [X1: '$ki_world'] :
      ( ~ '$ki_accessible'(sK0,X1)
      | p(sK1(X1)) ),
    inference(cnf_transformation,[],[f8]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem    : SYO902_8 : TPTP v8.2.0. Released v8.2.0.
% 0.03/0.12  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.12/0.33  % Computer : n018.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit   : 300
% 0.12/0.33  % WCLimit    : 300
% 0.12/0.33  % DateTime   : Mon May 22 13:21:46 EDT 2023
% 0.12/0.33  % CPUTime    : 
% 0.20/0.47  % (17101)dis+10_1:1_av=off:sos=on:sp=reverse_arity:ss=included:st=2.0:to=lpo:urr=ec_only:i=45:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/45Mi)
% 0.20/0.47  % (17101)First to succeed.
% 0.20/0.48  % (17093)lrs+10_1:1_drc=off:sp=reverse_frequency:spb=goal:to=lpo:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.20/0.48  % (17101)Refutation found. Thanks to Tanya!
% 0.20/0.48  % SZS status Theorem for theBenchmark
% 0.20/0.48  % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.48  % (17101)------------------------------
% 0.20/0.48  % (17101)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.48  % (17101)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.48  % (17101)Termination reason: Refutation
% 0.20/0.48  
% 0.20/0.48  % (17101)Memory used [KB]: 1407
% 0.20/0.48  % (17101)Time elapsed: 0.048 s
% 0.20/0.48  % (17101)Instructions burned: 2 (million)
% 0.20/0.48  % (17101)------------------------------
% 0.20/0.48  % (17101)------------------------------
% 0.20/0.48  % (17077)Success in time 0.14 s
%------------------------------------------------------------------------------