TSTP Solution File: SYN327+1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : SYN327+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 : n017.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 19:37:31 EDT 2022

% Result   : Theorem 0.18s 0.47s
% Output   : Refutation 0.18s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   12 (   3 unt;   0 def)
%            Number of atoms       :   71 (   0 equ)
%            Maximal formula atoms :   14 (   5 avg)
%            Number of connectives :   96 (  37   ~;  17   |;  32   &)
%                                         (   0 <=>;  10  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   7 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   :   23 (  13   !;  10   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f18,plain,
    $false,
    inference(subsumption_resolution,[],[f17,f14]) ).

fof(f14,plain,
    ! [X1] : big_f(X1,sK0),
    inference(cnf_transformation,[],[f7]) ).

fof(f7,plain,
    ! [X1] :
      ( big_f(X1,sK0)
      & ( ( big_f(sK0,sK1(X1))
          & ~ big_f(sK0,X1) )
        | ( ~ big_f(sK0,sK1(X1))
          & big_f(sK0,X1)
          & ( ~ big_f(sK1(X1),X1)
            | ~ big_f(X1,sK0) ) ) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f4,f6,f5]) ).

fof(f5,plain,
    ( ? [X0] :
      ! [X1] :
      ? [X2] :
        ( big_f(X1,X0)
        & ( ( big_f(X0,X2)
            & ~ big_f(X0,X1) )
          | ( ~ big_f(X0,X2)
            & big_f(X0,X1)
            & ( ~ big_f(X2,X1)
              | ~ big_f(X1,X0) ) ) ) )
   => ! [X1] :
      ? [X2] :
        ( big_f(X1,sK0)
        & ( ( big_f(sK0,X2)
            & ~ big_f(sK0,X1) )
          | ( ~ big_f(sK0,X2)
            & big_f(sK0,X1)
            & ( ~ big_f(X2,X1)
              | ~ big_f(X1,sK0) ) ) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f6,plain,
    ! [X1] :
      ( ? [X2] :
          ( big_f(X1,sK0)
          & ( ( big_f(sK0,X2)
              & ~ big_f(sK0,X1) )
            | ( ~ big_f(sK0,X2)
              & big_f(sK0,X1)
              & ( ~ big_f(X2,X1)
                | ~ big_f(X1,sK0) ) ) ) )
     => ( big_f(X1,sK0)
        & ( ( big_f(sK0,sK1(X1))
            & ~ big_f(sK0,X1) )
          | ( ~ big_f(sK0,sK1(X1))
            & big_f(sK0,X1)
            & ( ~ big_f(sK1(X1),X1)
              | ~ big_f(X1,sK0) ) ) ) ) ),
    introduced(choice_axiom,[]) ).

fof(f4,plain,
    ? [X0] :
    ! [X1] :
    ? [X2] :
      ( big_f(X1,X0)
      & ( ( big_f(X0,X2)
          & ~ big_f(X0,X1) )
        | ( ~ big_f(X0,X2)
          & big_f(X0,X1)
          & ( ~ big_f(X2,X1)
            | ~ big_f(X1,X0) ) ) ) ),
    inference(flattening,[],[f3]) ).

fof(f3,plain,
    ? [X0] :
    ! [X1] :
    ? [X2] :
      ( ( ( big_f(X0,X2)
          & ~ big_f(X0,X1) )
        | ( ( ~ big_f(X2,X1)
            | ~ big_f(X1,X0) )
          & ~ big_f(X0,X2)
          & big_f(X0,X1) ) )
      & big_f(X1,X0) ),
    inference(ennf_transformation,[],[f2]) ).

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

fof(f1,conjecture,
    ! [X0] :
    ? [X1] :
    ! [X2] :
      ( big_f(X1,X0)
     => ( ( big_f(X0,X2)
         => big_f(X0,X1) )
        & ( big_f(X0,X1)
         => ( ~ big_f(X0,X2)
           => ( big_f(X2,X1)
              & big_f(X1,X0) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',church_46_12_2) ).

fof(f17,plain,
    ~ big_f(sK0,sK0),
    inference(resolution,[],[f16,f14]) ).

fof(f16,plain,
    ! [X1] :
      ( ~ big_f(sK1(X1),X1)
      | ~ big_f(sK0,X1) ),
    inference(subsumption_resolution,[],[f8,f14]) ).

fof(f8,plain,
    ! [X1] :
      ( ~ big_f(X1,sK0)
      | ~ big_f(sK1(X1),X1)
      | ~ big_f(sK0,X1) ),
    inference(cnf_transformation,[],[f7]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem    : SYN327+1 : TPTP v8.1.0. Released v2.0.0.
% 0.11/0.12  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.13/0.33  % Computer : n017.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit   : 300
% 0.13/0.33  % WCLimit    : 300
% 0.13/0.33  % DateTime   : Tue Aug 30 21:07:20 EDT 2022
% 0.13/0.33  % CPUTime    : 
% 0.18/0.46  % (20423)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=498:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/498Mi)
% 0.18/0.46  % (20423)First to succeed.
% 0.18/0.46  % (20415)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)
% 0.18/0.47  % (20423)Refutation found. Thanks to Tanya!
% 0.18/0.47  % SZS status Theorem for theBenchmark
% 0.18/0.47  % SZS output start Proof for theBenchmark
% See solution above
% 0.18/0.47  % (20423)------------------------------
% 0.18/0.47  % (20423)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.18/0.47  % (20423)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.18/0.47  % (20423)Termination reason: Refutation
% 0.18/0.47  
% 0.18/0.47  % (20423)Memory used [KB]: 895
% 0.18/0.47  % (20423)Time elapsed: 0.058 s
% 0.18/0.47  % (20423)Instructions burned: 1 (million)
% 0.18/0.47  % (20423)------------------------------
% 0.18/0.47  % (20423)------------------------------
% 0.18/0.47  % (20400)Success in time 0.126 s
%------------------------------------------------------------------------------