TSTP Solution File: SET014+3 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET014+3 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n022.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 : Tue Jul 19 03:31:07 EDT 2022

% Result   : Theorem 3.74s 3.97s
% Output   : CNFRefutation 3.74s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   64 (  17 unt;   0 def)
%            Number of atoms       :  147 (  23 equ)
%            Maximal formula atoms :    7 (   2 avg)
%            Number of connectives :  135 (  52   ~;  58   |;  15   &)
%                                         (   6 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    5 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   3 con; 0-2 aty)
%            Number of variables   :  105 (   0 sgn  47   !;   5   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(union_defn,axiom,
    ! [B,C,D] :
      ( member(D,union(B,C))
    <=> ( member(D,B)
        | member(D,C) ) ) ).

fof(subset_defn,axiom,
    ! [B,C] :
      ( subset(B,C)
    <=> ! [D] :
          ( member(D,B)
         => member(D,C) ) ) ).

fof(commutativity_of_union,axiom,
    ! [B,C] : union(B,C) = union(C,B) ).

fof(prove_union_subset,conjecture,
    ! [B,C,D] :
      ( ( subset(B,C)
        & subset(D,C) )
     => subset(union(B,D),C) ) ).

fof(subgoal_0,plain,
    ! [B,C,D] :
      ( ( subset(B,C)
        & subset(D,C) )
     => subset(union(B,D),C) ),
    inference(strip,[],[prove_union_subset]) ).

fof(negate_0_0,plain,
    ~ ! [B,C,D] :
        ( ( subset(B,C)
          & subset(D,C) )
       => subset(union(B,D),C) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ! [B,C] :
      ( ~ subset(B,C)
    <=> ? [D] :
          ( ~ member(D,C)
          & member(D,B) ) ),
    inference(canonicalize,[],[subset_defn]) ).

fof(normalize_0_1,plain,
    ! [B,C] :
      ( ~ subset(B,C)
    <=> ? [D] :
          ( ~ member(D,C)
          & member(D,B) ) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [B,C,D] :
      ( ( ~ member(skolemFOFtoCNF_D(B,C),C)
        | subset(B,C) )
      & ( member(skolemFOFtoCNF_D(B,C),B)
        | subset(B,C) )
      & ( ~ member(D,B)
        | ~ subset(B,C)
        | member(D,C) ) ),
    inference(clausify,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [B,C] :
      ( ~ member(skolemFOFtoCNF_D(B,C),C)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ? [B,C,D] :
      ( ~ subset(union(B,D),C)
      & subset(B,C)
      & subset(D,C) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_5,plain,
    ( ~ subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C)
    & subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    & subset(skolemFOFtoCNF_D_2,skolemFOFtoCNF_C) ),
    inference(skolemize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    subset(skolemFOFtoCNF_D_2,skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [B,C,D] :
      ( ~ member(D,B)
      | ~ subset(B,C)
      | member(D,C) ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_8,plain,
    subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_9,plain,
    ! [B,C] :
      ( member(skolemFOFtoCNF_D(B,C),B)
      | subset(B,C) ),
    inference(conjunct,[],[normalize_0_2]) ).

fof(normalize_0_10,plain,
    ! [B,C,D] :
      ( ~ member(D,union(B,C))
    <=> ( ~ member(D,B)
        & ~ member(D,C) ) ),
    inference(canonicalize,[],[union_defn]) ).

fof(normalize_0_11,plain,
    ! [B,C,D] :
      ( ~ member(D,union(B,C))
    <=> ( ~ member(D,B)
        & ~ member(D,C) ) ),
    inference(specialize,[],[normalize_0_10]) ).

fof(normalize_0_12,plain,
    ! [B,C,D] :
      ( ( ~ member(D,B)
        | member(D,union(B,C)) )
      & ( ~ member(D,C)
        | member(D,union(B,C)) )
      & ( ~ member(D,union(B,C))
        | member(D,B)
        | member(D,C) ) ),
    inference(clausify,[],[normalize_0_11]) ).

fof(normalize_0_13,plain,
    ! [B,C,D] :
      ( ~ member(D,union(B,C))
      | member(D,B)
      | member(D,C) ),
    inference(conjunct,[],[normalize_0_12]) ).

fof(normalize_0_14,plain,
    ! [B,C] : union(B,C) = union(C,B),
    inference(canonicalize,[],[commutativity_of_union]) ).

fof(normalize_0_15,plain,
    ! [B,C] : union(B,C) = union(C,B),
    inference(specialize,[],[normalize_0_14]) ).

fof(normalize_0_16,plain,
    ~ subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C),
    inference(conjunct,[],[normalize_0_5]) ).

cnf(refute_0_0,plain,
    ( ~ member(skolemFOFtoCNF_D(B,C),C)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_1,plain,
    ( ~ member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C),skolemFOFtoCNF_C)
    | subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_0:[bind(B,$fot(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))),bind(C,$fot(skolemFOFtoCNF_C))]]) ).

cnf(refute_0_2,plain,
    subset(skolemFOFtoCNF_D_2,skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_6]) ).

cnf(refute_0_3,plain,
    ( ~ member(D,B)
    | ~ subset(B,C)
    | member(D,C) ),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_4,plain,
    ( ~ member(X_25,skolemFOFtoCNF_D_2)
    | ~ subset(skolemFOFtoCNF_D_2,skolemFOFtoCNF_C)
    | member(X_25,skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_3:[bind(B,$fot(skolemFOFtoCNF_D_2)),bind(C,$fot(skolemFOFtoCNF_C)),bind(D,$fot(X_25))]]) ).

cnf(refute_0_5,plain,
    ( ~ member(X_25,skolemFOFtoCNF_D_2)
    | member(X_25,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_D_2,skolemFOFtoCNF_C) )],[refute_0_2,refute_0_4]) ).

cnf(refute_0_6,plain,
    ( ~ member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_D_2)
    | member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_5:[bind(X_25,$fot(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763)))]]) ).

cnf(refute_0_7,plain,
    subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_8,plain,
    ( ~ member(X_25,skolemFOFtoCNF_B)
    | ~ subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C)
    | member(X_25,skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_3:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_C)),bind(D,$fot(X_25))]]) ).

cnf(refute_0_9,plain,
    ( ~ member(X_25,skolemFOFtoCNF_B)
    | member(X_25,skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( subset(skolemFOFtoCNF_B,skolemFOFtoCNF_C) )],[refute_0_7,refute_0_8]) ).

cnf(refute_0_10,plain,
    ( ~ member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),skolemFOFtoCNF_B)
    | member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_9:[bind(X_25,$fot(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503)))]]) ).

cnf(refute_0_11,plain,
    ( member(skolemFOFtoCNF_D(B,C),B)
    | subset(B,C) ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_12,plain,
    ( member(skolemFOFtoCNF_D(union(X_54,X_55),C),union(X_54,X_55))
    | subset(union(X_54,X_55),C) ),
    inference(subst,[],[refute_0_11:[bind(B,$fot(union(X_54,X_55)))]]) ).

cnf(refute_0_13,plain,
    ( ~ member(D,union(B,C))
    | member(D,B)
    | member(D,C) ),
    inference(canonicalize,[],[normalize_0_13]) ).

cnf(refute_0_14,plain,
    ( ~ member(skolemFOFtoCNF_D(union(X_54,X_55),C),union(X_54,X_55))
    | member(skolemFOFtoCNF_D(union(X_54,X_55),C),X_54)
    | member(skolemFOFtoCNF_D(union(X_54,X_55),C),X_55) ),
    inference(subst,[],[refute_0_13:[bind(B,$fot(X_54)),bind(C,$fot(X_55)),bind(D,$fot(skolemFOFtoCNF_D(union(X_54,X_55),C)))]]) ).

cnf(refute_0_15,plain,
    ( member(skolemFOFtoCNF_D(union(X_54,X_55),C),X_54)
    | member(skolemFOFtoCNF_D(union(X_54,X_55),C),X_55)
    | subset(union(X_54,X_55),C) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(union(X_54,X_55),C),union(X_54,X_55)) )],[refute_0_12,refute_0_14]) ).

cnf(refute_0_16,plain,
    ( member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),X_504)
    | member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),skolemFOFtoCNF_B)
    | subset(union(X_504,skolemFOFtoCNF_B),X_503) ),
    inference(subst,[],[refute_0_15:[bind(C,$fot(X_503)),bind(X_54,$fot(X_504)),bind(X_55,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_17,plain,
    ( member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),X_504)
    | member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),skolemFOFtoCNF_C)
    | subset(union(X_504,skolemFOFtoCNF_B),X_503) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(union(X_504,skolemFOFtoCNF_B),X_503),skolemFOFtoCNF_B) )],[refute_0_16,refute_0_10]) ).

cnf(refute_0_18,plain,
    ( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C)
    | member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_D_2)
    | subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) ),
    inference(subst,[],[refute_0_17:[bind(X_503,$fot(X_1763)),bind(X_504,$fot(skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_19,plain,
    ( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C)
    | subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_D_2) )],[refute_0_18,refute_0_6]) ).

cnf(refute_0_20,plain,
    union(B,C) = union(C,B),
    inference(canonicalize,[],[normalize_0_15]) ).

cnf(refute_0_21,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_22,plain,
    ( X != X
    | X != Y
    | Y = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y)]]) ).

cnf(refute_0_23,plain,
    ( X != Y
    | Y = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_21,refute_0_22]) ).

cnf(refute_0_24,plain,
    ( union(B,C) != union(C,B)
    | union(C,B) = union(B,C) ),
    inference(subst,[],[refute_0_23:[bind(X,$fot(union(B,C))),bind(Y,$fot(union(C,B)))]]) ).

cnf(refute_0_25,plain,
    union(C,B) = union(B,C),
    inference(resolve,[$cnf( $equal(union(B,C),union(C,B)) )],[refute_0_20,refute_0_24]) ).

cnf(refute_0_26,plain,
    union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B) = union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),
    inference(subst,[],[refute_0_25:[bind(B,$fot(skolemFOFtoCNF_B)),bind(C,$fot(skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_27,plain,
    skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) = skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763))]]) ).

cnf(refute_0_28,plain,
    ( skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) != skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763)
    | union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B) != union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)
    | skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) = skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763) ),
    introduced(tautology,[equality,[$cnf( $equal(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763)) ),[1,0],$fot(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_29,plain,
    ( union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B) != union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)
    | skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) = skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763)) )],[refute_0_27,refute_0_28]) ).

cnf(refute_0_30,plain,
    skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) = skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763),
    inference(resolve,[$cnf( $equal(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)) )],[refute_0_26,refute_0_29]) ).

cnf(refute_0_31,plain,
    ( skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) != skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763)
    | ~ member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C)
    | member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763),skolemFOFtoCNF_C) ),
    introduced(tautology,[equality,[$cnf( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C) ),[0],$fot(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763))]]) ).

cnf(refute_0_32,plain,
    ( ~ member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C)
    | member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763),skolemFOFtoCNF_C) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763)) )],[refute_0_30,refute_0_31]) ).

cnf(refute_0_33,plain,
    ( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763),skolemFOFtoCNF_C)
    | subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) ),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763),skolemFOFtoCNF_C) )],[refute_0_19,refute_0_32]) ).

cnf(refute_0_34,plain,
    ( union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B) != union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)
    | ~ subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763)
    | subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763) ),
    introduced(tautology,[equality,[$cnf( subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) ),[0],$fot(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2))]]) ).

cnf(refute_0_35,plain,
    ( ~ subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763)
    | subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763) ),
    inference(resolve,[$cnf( $equal(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2)) )],[refute_0_26,refute_0_34]) ).

cnf(refute_0_36,plain,
    ( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763),skolemFOFtoCNF_C)
    | subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),X_1763) ),
    inference(resolve,[$cnf( subset(union(skolemFOFtoCNF_D_2,skolemFOFtoCNF_B),X_1763) )],[refute_0_33,refute_0_35]) ).

cnf(refute_0_37,plain,
    ( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C),skolemFOFtoCNF_C)
    | subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C) ),
    inference(subst,[],[refute_0_36:[bind(X_1763,$fot(skolemFOFtoCNF_C))]]) ).

cnf(refute_0_38,plain,
    subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_D(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C),skolemFOFtoCNF_C) )],[refute_0_37,refute_0_1]) ).

cnf(refute_0_39,plain,
    ~ subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C),
    inference(canonicalize,[],[normalize_0_16]) ).

cnf(refute_0_40,plain,
    $false,
    inference(resolve,[$cnf( subset(union(skolemFOFtoCNF_B,skolemFOFtoCNF_D_2),skolemFOFtoCNF_C) )],[refute_0_38,refute_0_39]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET014+3 : TPTP v8.1.0. Released v2.2.0.
% 0.07/0.13  % Command  : metis --show proof --show saturation %s
% 0.13/0.34  % Computer : n022.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 Jul 10 13:15:25 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 3.74/3.97  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 3.74/3.97  
% 3.74/3.97  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 3.74/3.97  
%------------------------------------------------------------------------------