TSTP Solution File: PUZ060+1 by Metis---2.4

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%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : PUZ060+1 : TPTP v8.1.0. Released v3.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n019.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  : 600s
% DateTime : Mon Jul 18 18:20:56 EDT 2022

% Result   : Theorem 0.13s 0.35s
% Output   : CNFRefutation 0.13s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :    1
% Syntax   : Number of formulae    :   32 (  11 unt;   0 def)
%            Number of atoms       :  118 (   0 equ)
%            Maximal formula atoms :   14 (   3 avg)
%            Number of connectives :  122 (  36   ~;  31   |;  40   &)
%                                         (   0 <=>;  15  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   19 (   5 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    6 (   5 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   3 con; 0-0 aty)
%            Number of variables   :   81 (   4 sgn  59   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(prove_this,conjecture,
    ! [Peanuts,John,Bill,Sue,Apples,Chicken] :
      ( ( ! [X] :
            ( food(X)
           => likes(John,X) )
        & food(Apples)
        & food(Chicken)
        & ! [X] :
            ( ? [Y] :
                ( eats(Y,X)
                & not_killed_by(Y,X) )
           => food(X) )
        & eats(Bill,Peanuts)
        & alive(Bill)
        & ! [X] :
            ( eats(Bill,X)
           => eats(Sue,X) )
        & ! [Y] :
            ( alive(Y)
           => ! [X] : not_killed_by(Y,X) ) )
     => likes(John,Peanuts) ) ).

fof(subgoal_0,plain,
    ! [Peanuts,John,Bill,Sue,Apples,Chicken] :
      ( ( ! [X] :
            ( food(X)
           => likes(John,X) )
        & food(Apples)
        & food(Chicken)
        & ! [X] :
            ( ? [Y] :
                ( eats(Y,X)
                & not_killed_by(Y,X) )
           => food(X) )
        & eats(Bill,Peanuts)
        & alive(Bill)
        & ! [X] :
            ( eats(Bill,X)
           => eats(Sue,X) )
        & ! [Y] :
            ( alive(Y)
           => ! [X] : not_killed_by(Y,X) ) )
     => likes(John,Peanuts) ),
    inference(strip,[],[prove_this]) ).

fof(negate_0_0,plain,
    ~ ! [Peanuts,John,Bill,Sue,Apples,Chicken] :
        ( ( ! [X] :
              ( food(X)
             => likes(John,X) )
          & food(Apples)
          & food(Chicken)
          & ! [X] :
              ( ? [Y] :
                  ( eats(Y,X)
                  & not_killed_by(Y,X) )
             => food(X) )
          & eats(Bill,Peanuts)
          & alive(Bill)
          & ! [X] :
              ( eats(Bill,X)
             => eats(Sue,X) )
          & ! [Y] :
              ( alive(Y)
             => ! [X] : not_killed_by(Y,X) ) )
       => likes(John,Peanuts) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [Bill,John,Peanuts] :
      ( ~ likes(John,Peanuts)
      & alive(Bill)
      & eats(Bill,Peanuts)
      & ? [Apples] : food(Apples)
      & ? [Chicken] : food(Chicken)
      & ? [Sue] :
        ! [X] :
          ( ~ eats(Bill,X)
          | eats(Sue,X) )
      & ! [X] :
          ( ~ food(X)
          | likes(John,X) )
      & ! [X] :
          ( food(X)
          | ! [Y] :
              ( ~ eats(Y,X)
              | ~ not_killed_by(Y,X) ) )
      & ! [Y] :
          ( ~ alive(Y)
          | ! [X] : not_killed_by(Y,X) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( ~ likes(skolemFOFtoCNF_John,skolemFOFtoCNF_Peanuts)
    & alive(skolemFOFtoCNF_Bill)
    & eats(skolemFOFtoCNF_Bill,skolemFOFtoCNF_Peanuts)
    & ? [Apples] : food(Apples)
    & ? [Chicken] : food(Chicken)
    & ? [Sue] :
      ! [X] :
        ( ~ eats(skolemFOFtoCNF_Bill,X)
        | eats(Sue,X) )
    & ! [X] :
        ( ~ food(X)
        | likes(skolemFOFtoCNF_John,X) )
    & ! [X] :
        ( food(X)
        | ! [Y] :
            ( ~ eats(Y,X)
            | ~ not_killed_by(Y,X) ) )
    & ! [Y] :
        ( ~ alive(Y)
        | ! [X] : not_killed_by(Y,X) ) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [X] :
      ( ~ food(X)
      | likes(skolemFOFtoCNF_John,X) ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [X] :
      ( ~ food(X)
      | likes(skolemFOFtoCNF_John,X) ),
    inference(specialize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    eats(skolemFOFtoCNF_Bill,skolemFOFtoCNF_Peanuts),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_5,plain,
    alive(skolemFOFtoCNF_Bill),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_6,plain,
    ! [Y] :
      ( ~ alive(Y)
      | ! [X] : not_killed_by(Y,X) ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_7,plain,
    ! [Y] :
      ( ~ alive(Y)
      | ! [X] : not_killed_by(Y,X) ),
    inference(specialize,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [X,Y] :
      ( ~ alive(Y)
      | not_killed_by(Y,X) ),
    inference(clausify,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [X] :
      ( food(X)
      | ! [Y] :
          ( ~ eats(Y,X)
          | ~ not_killed_by(Y,X) ) ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_10,plain,
    ! [X] :
      ( food(X)
      | ! [Y] :
          ( ~ eats(Y,X)
          | ~ not_killed_by(Y,X) ) ),
    inference(specialize,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ! [X,Y] :
      ( ~ eats(Y,X)
      | ~ not_killed_by(Y,X)
      | food(X) ),
    inference(clausify,[],[normalize_0_10]) ).

fof(normalize_0_12,plain,
    ~ likes(skolemFOFtoCNF_John,skolemFOFtoCNF_Peanuts),
    inference(conjunct,[],[normalize_0_1]) ).

cnf(refute_0_0,plain,
    ( ~ food(X)
    | likes(skolemFOFtoCNF_John,X) ),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_1,plain,
    ( ~ food(skolemFOFtoCNF_Peanuts)
    | likes(skolemFOFtoCNF_John,skolemFOFtoCNF_Peanuts) ),
    inference(subst,[],[refute_0_0:[bind(X,$fot(skolemFOFtoCNF_Peanuts))]]) ).

cnf(refute_0_2,plain,
    eats(skolemFOFtoCNF_Bill,skolemFOFtoCNF_Peanuts),
    inference(canonicalize,[],[normalize_0_4]) ).

cnf(refute_0_3,plain,
    alive(skolemFOFtoCNF_Bill),
    inference(canonicalize,[],[normalize_0_5]) ).

cnf(refute_0_4,plain,
    ( ~ alive(Y)
    | not_killed_by(Y,X) ),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_5,plain,
    ( ~ alive(skolemFOFtoCNF_Bill)
    | not_killed_by(skolemFOFtoCNF_Bill,X_2) ),
    inference(subst,[],[refute_0_4:[bind(X,$fot(X_2)),bind(Y,$fot(skolemFOFtoCNF_Bill))]]) ).

cnf(refute_0_6,plain,
    not_killed_by(skolemFOFtoCNF_Bill,X_2),
    inference(resolve,[$cnf( alive(skolemFOFtoCNF_Bill) )],[refute_0_3,refute_0_5]) ).

cnf(refute_0_7,plain,
    not_killed_by(skolemFOFtoCNF_Bill,X_5),
    inference(subst,[],[refute_0_6:[bind(X_2,$fot(X_5))]]) ).

cnf(refute_0_8,plain,
    ( ~ eats(Y,X)
    | ~ not_killed_by(Y,X)
    | food(X) ),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_9,plain,
    ( ~ eats(skolemFOFtoCNF_Bill,X_5)
    | ~ not_killed_by(skolemFOFtoCNF_Bill,X_5)
    | food(X_5) ),
    inference(subst,[],[refute_0_8:[bind(X,$fot(X_5)),bind(Y,$fot(skolemFOFtoCNF_Bill))]]) ).

cnf(refute_0_10,plain,
    ( ~ eats(skolemFOFtoCNF_Bill,X_5)
    | food(X_5) ),
    inference(resolve,[$cnf( not_killed_by(skolemFOFtoCNF_Bill,X_5) )],[refute_0_7,refute_0_9]) ).

cnf(refute_0_11,plain,
    ( ~ eats(skolemFOFtoCNF_Bill,skolemFOFtoCNF_Peanuts)
    | food(skolemFOFtoCNF_Peanuts) ),
    inference(subst,[],[refute_0_10:[bind(X_5,$fot(skolemFOFtoCNF_Peanuts))]]) ).

cnf(refute_0_12,plain,
    food(skolemFOFtoCNF_Peanuts),
    inference(resolve,[$cnf( eats(skolemFOFtoCNF_Bill,skolemFOFtoCNF_Peanuts) )],[refute_0_2,refute_0_11]) ).

cnf(refute_0_13,plain,
    likes(skolemFOFtoCNF_John,skolemFOFtoCNF_Peanuts),
    inference(resolve,[$cnf( food(skolemFOFtoCNF_Peanuts) )],[refute_0_12,refute_0_1]) ).

cnf(refute_0_14,plain,
    ~ likes(skolemFOFtoCNF_John,skolemFOFtoCNF_Peanuts),
    inference(canonicalize,[],[normalize_0_12]) ).

cnf(refute_0_15,plain,
    $false,
    inference(resolve,[$cnf( likes(skolemFOFtoCNF_John,skolemFOFtoCNF_Peanuts) )],[refute_0_13,refute_0_14]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : PUZ060+1 : TPTP v8.1.0. Released v3.1.0.
% 0.07/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n019.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Sun May 29 01:03:26 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.13/0.35  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.35  
% 0.13/0.35  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 0.13/0.36  
%------------------------------------------------------------------------------