TSTP Solution File: SYN413+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SYN413+1 : TPTP v8.1.0. Released v2.0.0.
% 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 : n010.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 19:37:49 EDT 2022

% Result   : Theorem 0.21s 0.50s
% Output   : Refutation 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   17 (   4 unt;   0 def)
%            Number of atoms       :   67 (   0 equ)
%            Maximal formula atoms :   12 (   3 avg)
%            Number of connectives :   79 (  29   ~;  23   |;  20   &)
%                                         (   3 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   6 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    2 (   2 usr;   1 con; 0-1 aty)
%            Number of variables   :   48 (  34   !;  14   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f24,plain,
    $false,
    inference(subsumption_resolution,[],[f21,f23]) ).

fof(f23,plain,
    ! [X1] : ~ f(sK1(X1),sK1(X1)),
    inference(subsumption_resolution,[],[f16,f11]) ).

fof(f11,plain,
    ! [X2,X4] :
      ( ~ f(X4,sK1(X2))
      | ~ f(X4,X4) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f9,plain,
    ( ! [X1] : f(X1,sK0)
    & ! [X2,X4] :
        ( ( ( f(X4,X2)
            & ~ f(X4,X4) )
          | ~ f(X4,sK1(X2)) )
        & ( f(X4,sK1(X2))
          | ~ f(X4,X2)
          | f(X4,X4) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f6,f8,f7]) ).

fof(f7,plain,
    ( ? [X0] :
      ! [X1] : f(X1,X0)
   => ! [X1] : f(X1,sK0) ),
    introduced(choice_axiom,[]) ).

fof(f8,plain,
    ! [X2] :
      ( ? [X3] :
        ! [X4] :
          ( ( ( f(X4,X2)
              & ~ f(X4,X4) )
            | ~ f(X4,X3) )
          & ( f(X4,X3)
            | ~ f(X4,X2)
            | f(X4,X4) ) )
     => ! [X4] :
          ( ( ( f(X4,X2)
              & ~ f(X4,X4) )
            | ~ f(X4,sK1(X2)) )
          & ( f(X4,sK1(X2))
            | ~ f(X4,X2)
            | f(X4,X4) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f6,plain,
    ( ? [X0] :
      ! [X1] : f(X1,X0)
    & ! [X2] :
      ? [X3] :
      ! [X4] :
        ( ( ( f(X4,X2)
            & ~ f(X4,X4) )
          | ~ f(X4,X3) )
        & ( f(X4,X3)
          | ~ f(X4,X2)
          | f(X4,X4) ) ) ),
    inference(rectify,[],[f5]) ).

fof(f5,plain,
    ( ? [X3] :
      ! [X4] : f(X4,X3)
    & ! [X0] :
      ? [X1] :
      ! [X2] :
        ( ( ( f(X2,X0)
            & ~ f(X2,X2) )
          | ~ f(X2,X1) )
        & ( f(X2,X1)
          | ~ f(X2,X0)
          | f(X2,X2) ) ) ),
    inference(flattening,[],[f4]) ).

fof(f4,plain,
    ( ? [X3] :
      ! [X4] : f(X4,X3)
    & ! [X0] :
      ? [X1] :
      ! [X2] :
        ( ( ( f(X2,X0)
            & ~ f(X2,X2) )
          | ~ f(X2,X1) )
        & ( f(X2,X1)
          | ~ f(X2,X0)
          | f(X2,X2) ) ) ),
    inference(nnf_transformation,[],[f3]) ).

fof(f3,plain,
    ( ? [X3] :
      ! [X4] : f(X4,X3)
    & ! [X0] :
      ? [X1] :
      ! [X2] :
        ( ( f(X2,X0)
          & ~ f(X2,X2) )
      <=> f(X2,X1) ) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f2,negated_conjecture,
    ~ ( ! [X0] :
        ? [X1] :
        ! [X2] :
          ( ( f(X2,X0)
            & ~ f(X2,X2) )
        <=> f(X2,X1) )
     => ~ ? [X3] :
          ! [X4] : f(X4,X3) ),
    inference(negated_conjecture,[],[f1]) ).

fof(f1,conjecture,
    ( ! [X0] :
      ? [X1] :
      ! [X2] :
        ( ( f(X2,X0)
          & ~ f(X2,X2) )
      <=> f(X2,X1) )
   => ~ ? [X3] :
        ! [X4] : f(X4,X3) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',kalish256) ).

fof(f16,plain,
    ! [X1] :
      ( f(sK1(X1),sK1(sK0))
      | ~ f(sK1(X1),sK1(X1)) ),
    inference(resolution,[],[f14,f11]) ).

fof(f14,plain,
    ! [X0] :
      ( f(X0,X0)
      | f(X0,sK1(sK0)) ),
    inference(resolution,[],[f10,f13]) ).

fof(f13,plain,
    ! [X1] : f(X1,sK0),
    inference(cnf_transformation,[],[f9]) ).

fof(f10,plain,
    ! [X2,X4] :
      ( ~ f(X4,X2)
      | f(X4,sK1(X2))
      | f(X4,X4) ),
    inference(cnf_transformation,[],[f9]) ).

fof(f21,plain,
    f(sK1(sK0),sK1(sK0)),
    inference(factoring,[],[f14]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem    : SYN413+1 : TPTP v8.1.0. Released v2.0.0.
% 0.07/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.14/0.34  % Computer : n010.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit   : 300
% 0.14/0.34  % WCLimit    : 300
% 0.14/0.34  % DateTime   : Tue Aug 30 21:45:14 EDT 2022
% 0.14/0.35  % CPUTime    : 
% 0.21/0.49  % (16698)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/7Mi)
% 0.21/0.50  % (16706)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)
% 0.21/0.50  % (16706)First to succeed.
% 0.21/0.50  % (16706)Refutation found. Thanks to Tanya!
% 0.21/0.50  % SZS status Theorem for theBenchmark
% 0.21/0.50  % SZS output start Proof for theBenchmark
% See solution above
% 0.21/0.50  % (16706)------------------------------
% 0.21/0.50  % (16706)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.21/0.50  % (16706)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.21/0.50  % (16706)Termination reason: Refutation
% 0.21/0.50  
% 0.21/0.50  % (16706)Memory used [KB]: 895
% 0.21/0.50  % (16706)Time elapsed: 0.097 s
% 0.21/0.50  % (16706)Instructions burned: 2 (million)
% 0.21/0.50  % (16706)------------------------------
% 0.21/0.50  % (16706)------------------------------
% 0.21/0.50  % (16690)Success in time 0.148 s
%------------------------------------------------------------------------------