TSTP Solution File: SWC406+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SWC406+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %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  : 600s
% DateTime : Tue Jul 19 21:28:12 EDT 2022

% Result   : Theorem 2.39s 2.59s
% Output   : CNFRefutation 2.44s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   21
%            Number of leaves      :    5
% Syntax   : Number of formulae    :   45 (  15 unt;   0 def)
%            Number of atoms       :  338 (  68 equ)
%            Maximal formula atoms :   25 (   7 avg)
%            Number of connectives :  446 ( 153   ~; 127   |; 148   &)
%                                         (   0 <=>;  18  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   24 (   7 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    7 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   5 con; 0-1 aty)
%            Number of variables   :   94 (   0 sgn  41   !;  41   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(co1,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X0] :
                  ( ssList(X0)
                 => ( V != X0
                    | U != W
                    | ? [Y] :
                        ( ssItem(Y)
                        & ( ( ~ memberP(W,Y)
                            & ! [Z] :
                                ( ssItem(Z)
                               => ( ~ memberP(X0,Z)
                                  | ~ leq(Z,Y)
                                  | Y = Z ) )
                            & memberP(X0,Y) )
                          | ( memberP(W,Y)
                            & ( ~ memberP(X0,Y)
                              | ? [Z] :
                                  ( ssItem(Z)
                                  & Y != Z
                                  & memberP(X0,Z)
                                  & leq(Z,Y) ) ) ) ) )
                    | ! [X1] :
                        ( ssItem(X1)
                       => ( ~ memberP(U,X1)
                          | memberP(V,X1) ) ) ) ) ) ) ) ).

fof(subgoal_0,plain,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X0] :
                  ( ( ssList(X0)
                    & ~ ( V != X0 )
                    & ~ ( U != W )
                    & ~ ? [Y] :
                          ( ssItem(Y)
                          & ( ( ~ memberP(W,Y)
                              & ! [Z] :
                                  ( ssItem(Z)
                                 => ( ~ memberP(X0,Z)
                                    | ~ leq(Z,Y)
                                    | Y = Z ) )
                              & memberP(X0,Y) )
                            | ( memberP(W,Y)
                              & ( ~ memberP(X0,Y)
                                | ? [Z] :
                                    ( ssItem(Z)
                                    & Y != Z
                                    & memberP(X0,Z)
                                    & leq(Z,Y) ) ) ) ) ) )
                 => ! [X1] :
                      ( ( ssItem(X1)
                        & ~ ~ memberP(U,X1) )
                     => memberP(V,X1) ) ) ) ) ),
    inference(strip,[],[co1]) ).

fof(negate_0_0,plain,
    ~ ! [U] :
        ( ssList(U)
       => ! [V] :
            ( ssList(V)
           => ! [W] :
                ( ssList(W)
               => ! [X0] :
                    ( ( ssList(X0)
                      & ~ ( V != X0 )
                      & ~ ( U != W )
                      & ~ ? [Y] :
                            ( ssItem(Y)
                            & ( ( ~ memberP(W,Y)
                                & ! [Z] :
                                    ( ssItem(Z)
                                   => ( ~ memberP(X0,Z)
                                      | ~ leq(Z,Y)
                                      | Y = Z ) )
                                & memberP(X0,Y) )
                              | ( memberP(W,Y)
                                & ( ~ memberP(X0,Y)
                                  | ? [Z] :
                                      ( ssItem(Z)
                                      & Y != Z
                                      & memberP(X0,Z)
                                      & leq(Z,Y) ) ) ) ) ) )
                   => ! [X1] :
                        ( ( ssItem(X1)
                          & ~ ~ memberP(U,X1) )
                       => memberP(V,X1) ) ) ) ) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X0] :
                  ( U = W
                  & V = X0
                  & ssList(X0)
                  & ? [X1] :
                      ( ~ memberP(V,X1)
                      & memberP(U,X1)
                      & ssItem(X1) )
                  & ! [Y] :
                      ( ~ ssItem(Y)
                      | ( ( ~ memberP(W,Y)
                          | ( memberP(X0,Y)
                            & ! [Z] :
                                ( ~ leq(Z,Y)
                                | ~ memberP(X0,Z)
                                | ~ ssItem(Z)
                                | Y = Z ) ) )
                        & ( ~ memberP(X0,Y)
                          | memberP(W,Y)
                          | ? [Z] :
                              ( Y != Z
                              & leq(Z,Y)
                              & memberP(X0,Z)
                              & ssItem(Z) ) ) ) ) ) ) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( ssList(skolemFOFtoCNF_U_1)
    & ? [V] :
        ( ssList(V)
        & ? [W] :
            ( ssList(W)
            & ? [X0] :
                ( V = X0
                & skolemFOFtoCNF_U_1 = W
                & ssList(X0)
                & ? [X1] :
                    ( ~ memberP(V,X1)
                    & memberP(skolemFOFtoCNF_U_1,X1)
                    & ssItem(X1) )
                & ! [Y] :
                    ( ~ ssItem(Y)
                    | ( ( ~ memberP(W,Y)
                        | ( memberP(X0,Y)
                          & ! [Z] :
                              ( ~ leq(Z,Y)
                              | ~ memberP(X0,Z)
                              | ~ ssItem(Z)
                              | Y = Z ) ) )
                      & ( ~ memberP(X0,Y)
                        | memberP(W,Y)
                        | ? [Z] :
                            ( Y != Z
                            & leq(Z,Y)
                            & memberP(X0,Z)
                            & ssItem(Z) ) ) ) ) ) ) ) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ? [V] :
      ( ssList(V)
      & ? [W] :
          ( ssList(W)
          & ? [X0] :
              ( V = X0
              & skolemFOFtoCNF_U_1 = W
              & ssList(X0)
              & ? [X1] :
                  ( ~ memberP(V,X1)
                  & memberP(skolemFOFtoCNF_U_1,X1)
                  & ssItem(X1) )
              & ! [Y] :
                  ( ~ ssItem(Y)
                  | ( ( ~ memberP(W,Y)
                      | ( memberP(X0,Y)
                        & ! [Z] :
                            ( ~ leq(Z,Y)
                            | ~ memberP(X0,Z)
                            | ~ ssItem(Z)
                            | Y = Z ) ) )
                    & ( ~ memberP(X0,Y)
                      | memberP(W,Y)
                      | ? [Z] :
                          ( Y != Z
                          & leq(Z,Y)
                          & memberP(X0,Z)
                          & ssItem(Z) ) ) ) ) ) ) ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ( ssList(skolemFOFtoCNF_V_12)
    & ? [W] :
        ( ssList(W)
        & ? [X0] :
            ( skolemFOFtoCNF_U_1 = W
            & skolemFOFtoCNF_V_12 = X0
            & ssList(X0)
            & ? [X1] :
                ( ~ memberP(skolemFOFtoCNF_V_12,X1)
                & memberP(skolemFOFtoCNF_U_1,X1)
                & ssItem(X1) )
            & ! [Y] :
                ( ~ ssItem(Y)
                | ( ( ~ memberP(W,Y)
                    | ( memberP(X0,Y)
                      & ! [Z] :
                          ( ~ leq(Z,Y)
                          | ~ memberP(X0,Z)
                          | ~ ssItem(Z)
                          | Y = Z ) ) )
                  & ( ~ memberP(X0,Y)
                    | memberP(W,Y)
                    | ? [Z] :
                        ( Y != Z
                        & leq(Z,Y)
                        & memberP(X0,Z)
                        & ssItem(Z) ) ) ) ) ) ) ),
    inference(skolemize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ? [W] :
      ( ssList(W)
      & ? [X0] :
          ( skolemFOFtoCNF_U_1 = W
          & skolemFOFtoCNF_V_12 = X0
          & ssList(X0)
          & ? [X1] :
              ( ~ memberP(skolemFOFtoCNF_V_12,X1)
              & memberP(skolemFOFtoCNF_U_1,X1)
              & ssItem(X1) )
          & ! [Y] :
              ( ~ ssItem(Y)
              | ( ( ~ memberP(W,Y)
                  | ( memberP(X0,Y)
                    & ! [Z] :
                        ( ~ leq(Z,Y)
                        | ~ memberP(X0,Z)
                        | ~ ssItem(Z)
                        | Y = Z ) ) )
                & ( ~ memberP(X0,Y)
                  | memberP(W,Y)
                  | ? [Z] :
                      ( Y != Z
                      & leq(Z,Y)
                      & memberP(X0,Z)
                      & ssItem(Z) ) ) ) ) ) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ( ssList(skolemFOFtoCNF_W_12)
    & ? [X0] :
        ( skolemFOFtoCNF_U_1 = skolemFOFtoCNF_W_12
        & skolemFOFtoCNF_V_12 = X0
        & ssList(X0)
        & ? [X1] :
            ( ~ memberP(skolemFOFtoCNF_V_12,X1)
            & memberP(skolemFOFtoCNF_U_1,X1)
            & ssItem(X1) )
        & ! [Y] :
            ( ~ ssItem(Y)
            | ( ( ~ memberP(skolemFOFtoCNF_W_12,Y)
                | ( memberP(X0,Y)
                  & ! [Z] :
                      ( ~ leq(Z,Y)
                      | ~ memberP(X0,Z)
                      | ~ ssItem(Z)
                      | Y = Z ) ) )
              & ( ~ memberP(X0,Y)
                | memberP(skolemFOFtoCNF_W_12,Y)
                | ? [Z] :
                    ( Y != Z
                    & leq(Z,Y)
                    & memberP(X0,Z)
                    & ssItem(Z) ) ) ) ) ) ),
    inference(skolemize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ? [X0] :
      ( skolemFOFtoCNF_U_1 = skolemFOFtoCNF_W_12
      & skolemFOFtoCNF_V_12 = X0
      & ssList(X0)
      & ? [X1] :
          ( ~ memberP(skolemFOFtoCNF_V_12,X1)
          & memberP(skolemFOFtoCNF_U_1,X1)
          & ssItem(X1) )
      & ! [Y] :
          ( ~ ssItem(Y)
          | ( ( ~ memberP(skolemFOFtoCNF_W_12,Y)
              | ( memberP(X0,Y)
                & ! [Z] :
                    ( ~ leq(Z,Y)
                    | ~ memberP(X0,Z)
                    | ~ ssItem(Z)
                    | Y = Z ) ) )
            & ( ~ memberP(X0,Y)
              | memberP(skolemFOFtoCNF_W_12,Y)
              | ? [Z] :
                  ( Y != Z
                  & leq(Z,Y)
                  & memberP(X0,Z)
                  & ssItem(Z) ) ) ) ) ),
    inference(conjunct,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ( skolemFOFtoCNF_U_1 = skolemFOFtoCNF_W_12
    & skolemFOFtoCNF_V_12 = skolemFOFtoCNF_X_9
    & ssList(skolemFOFtoCNF_X_9)
    & ? [X1] :
        ( ~ memberP(skolemFOFtoCNF_V_12,X1)
        & memberP(skolemFOFtoCNF_U_1,X1)
        & ssItem(X1) )
    & ! [Y] :
        ( ~ ssItem(Y)
        | ( ( ~ memberP(skolemFOFtoCNF_W_12,Y)
            | ( memberP(skolemFOFtoCNF_X_9,Y)
              & ! [Z] :
                  ( ~ leq(Z,Y)
                  | ~ memberP(skolemFOFtoCNF_X_9,Z)
                  | ~ ssItem(Z)
                  | Y = Z ) ) )
          & ( ~ memberP(skolemFOFtoCNF_X_9,Y)
            | memberP(skolemFOFtoCNF_W_12,Y)
            | ? [Z] :
                ( Y != Z
                & leq(Z,Y)
                & memberP(skolemFOFtoCNF_X_9,Z)
                & ssItem(Z) ) ) ) ) ),
    inference(skolemize,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ? [X1] :
      ( ~ memberP(skolemFOFtoCNF_V_12,X1)
      & memberP(skolemFOFtoCNF_U_1,X1)
      & ssItem(X1) ),
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ( ~ memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1)
    & memberP(skolemFOFtoCNF_U_1,skolemFOFtoCNF_X1)
    & ssItem(skolemFOFtoCNF_X1) ),
    inference(skolemize,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    memberP(skolemFOFtoCNF_U_1,skolemFOFtoCNF_X1),
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    ! [Y] :
      ( ~ ssItem(Y)
      | ( ( ~ memberP(skolemFOFtoCNF_W_12,Y)
          | ( memberP(skolemFOFtoCNF_X_9,Y)
            & ! [Z] :
                ( ~ leq(Z,Y)
                | ~ memberP(skolemFOFtoCNF_X_9,Z)
                | ~ ssItem(Z)
                | Y = Z ) ) )
        & ( ~ memberP(skolemFOFtoCNF_X_9,Y)
          | memberP(skolemFOFtoCNF_W_12,Y)
          | ? [Z] :
              ( Y != Z
              & leq(Z,Y)
              & memberP(skolemFOFtoCNF_X_9,Z)
              & ssItem(Z) ) ) ) ),
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_12,plain,
    ! [Y] :
      ( ~ ssItem(Y)
      | ( ( ~ memberP(skolemFOFtoCNF_W_12,Y)
          | ( memberP(skolemFOFtoCNF_X_9,Y)
            & ! [Z] :
                ( ~ leq(Z,Y)
                | ~ memberP(skolemFOFtoCNF_X_9,Z)
                | ~ ssItem(Z)
                | Y = Z ) ) )
        & ( ~ memberP(skolemFOFtoCNF_X_9,Y)
          | memberP(skolemFOFtoCNF_W_12,Y)
          | ? [Z] :
              ( Y != Z
              & leq(Z,Y)
              & memberP(skolemFOFtoCNF_X_9,Z)
              & ssItem(Z) ) ) ) ),
    inference(specialize,[],[normalize_0_11]) ).

fof(normalize_0_13,plain,
    ! [Y,Z] :
      ( ( ~ memberP(skolemFOFtoCNF_W_12,Y)
        | ~ ssItem(Y)
        | memberP(skolemFOFtoCNF_X_9,Y) )
      & ( Y != skolemFOFtoCNF_Z_6(Y)
        | ~ memberP(skolemFOFtoCNF_X_9,Y)
        | ~ ssItem(Y)
        | memberP(skolemFOFtoCNF_W_12,Y) )
      & ( ~ memberP(skolemFOFtoCNF_X_9,Y)
        | ~ ssItem(Y)
        | leq(skolemFOFtoCNF_Z_6(Y),Y)
        | memberP(skolemFOFtoCNF_W_12,Y) )
      & ( ~ memberP(skolemFOFtoCNF_X_9,Y)
        | ~ ssItem(Y)
        | memberP(skolemFOFtoCNF_W_12,Y)
        | memberP(skolemFOFtoCNF_X_9,skolemFOFtoCNF_Z_6(Y)) )
      & ( ~ memberP(skolemFOFtoCNF_X_9,Y)
        | ~ ssItem(Y)
        | memberP(skolemFOFtoCNF_W_12,Y)
        | ssItem(skolemFOFtoCNF_Z_6(Y)) )
      & ( ~ leq(Z,Y)
        | ~ memberP(skolemFOFtoCNF_W_12,Y)
        | ~ memberP(skolemFOFtoCNF_X_9,Z)
        | ~ ssItem(Y)
        | ~ ssItem(Z)
        | Y = Z ) ),
    inference(clausify,[],[normalize_0_12]) ).

fof(normalize_0_14,plain,
    ! [Y] :
      ( ~ memberP(skolemFOFtoCNF_W_12,Y)
      | ~ ssItem(Y)
      | memberP(skolemFOFtoCNF_X_9,Y) ),
    inference(conjunct,[],[normalize_0_13]) ).

fof(normalize_0_15,plain,
    skolemFOFtoCNF_U_1 = skolemFOFtoCNF_W_12,
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_16,plain,
    skolemFOFtoCNF_V_12 = skolemFOFtoCNF_X_9,
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_17,plain,
    ssItem(skolemFOFtoCNF_X1),
    inference(conjunct,[],[normalize_0_9]) ).

fof(normalize_0_18,plain,
    ~ memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1),
    inference(conjunct,[],[normalize_0_9]) ).

cnf(refute_0_0,plain,
    memberP(skolemFOFtoCNF_U_1,skolemFOFtoCNF_X1),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_1,plain,
    ( ~ memberP(skolemFOFtoCNF_W_12,Y)
    | ~ ssItem(Y)
    | memberP(skolemFOFtoCNF_X_9,Y) ),
    inference(canonicalize,[],[normalize_0_14]) ).

cnf(refute_0_2,plain,
    skolemFOFtoCNF_U_1 = skolemFOFtoCNF_W_12,
    inference(canonicalize,[],[normalize_0_15]) ).

cnf(refute_0_3,plain,
    X = X,
    introduced(tautology,[refl,[$fot(X)]]) ).

cnf(refute_0_4,plain,
    ( X != X
    | X != Y0
    | Y0 = X ),
    introduced(tautology,[equality,[$cnf( $equal(X,X) ),[0],$fot(Y0)]]) ).

cnf(refute_0_5,plain,
    ( X != Y0
    | Y0 = X ),
    inference(resolve,[$cnf( $equal(X,X) )],[refute_0_3,refute_0_4]) ).

cnf(refute_0_6,plain,
    ( skolemFOFtoCNF_U_1 != skolemFOFtoCNF_W_12
    | skolemFOFtoCNF_W_12 = skolemFOFtoCNF_U_1 ),
    inference(subst,[],[refute_0_5:[bind(X,$fot(skolemFOFtoCNF_U_1)),bind(Y0,$fot(skolemFOFtoCNF_W_12))]]) ).

cnf(refute_0_7,plain,
    skolemFOFtoCNF_W_12 = skolemFOFtoCNF_U_1,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_U_1,skolemFOFtoCNF_W_12) )],[refute_0_2,refute_0_6]) ).

cnf(refute_0_8,plain,
    ( skolemFOFtoCNF_W_12 != skolemFOFtoCNF_U_1
    | ~ memberP(skolemFOFtoCNF_U_1,Y)
    | memberP(skolemFOFtoCNF_W_12,Y) ),
    introduced(tautology,[equality,[$cnf( ~ memberP(skolemFOFtoCNF_W_12,Y) ),[0],$fot(skolemFOFtoCNF_U_1)]]) ).

cnf(refute_0_9,plain,
    ( ~ memberP(skolemFOFtoCNF_U_1,Y)
    | memberP(skolemFOFtoCNF_W_12,Y) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_W_12,skolemFOFtoCNF_U_1) )],[refute_0_7,refute_0_8]) ).

cnf(refute_0_10,plain,
    ( ~ memberP(skolemFOFtoCNF_U_1,Y)
    | ~ ssItem(Y)
    | memberP(skolemFOFtoCNF_X_9,Y) ),
    inference(resolve,[$cnf( memberP(skolemFOFtoCNF_W_12,Y) )],[refute_0_9,refute_0_1]) ).

cnf(refute_0_11,plain,
    skolemFOFtoCNF_V_12 = skolemFOFtoCNF_X_9,
    inference(canonicalize,[],[normalize_0_16]) ).

cnf(refute_0_12,plain,
    ( skolemFOFtoCNF_V_12 != skolemFOFtoCNF_X_9
    | skolemFOFtoCNF_X_9 = skolemFOFtoCNF_V_12 ),
    inference(subst,[],[refute_0_5:[bind(X,$fot(skolemFOFtoCNF_V_12)),bind(Y0,$fot(skolemFOFtoCNF_X_9))]]) ).

cnf(refute_0_13,plain,
    skolemFOFtoCNF_X_9 = skolemFOFtoCNF_V_12,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X_9) )],[refute_0_11,refute_0_12]) ).

cnf(refute_0_14,plain,
    ( skolemFOFtoCNF_X_9 != skolemFOFtoCNF_V_12
    | ~ memberP(skolemFOFtoCNF_X_9,Y)
    | memberP(skolemFOFtoCNF_V_12,Y) ),
    introduced(tautology,[equality,[$cnf( memberP(skolemFOFtoCNF_X_9,Y) ),[0],$fot(skolemFOFtoCNF_V_12)]]) ).

cnf(refute_0_15,plain,
    ( ~ memberP(skolemFOFtoCNF_X_9,Y)
    | memberP(skolemFOFtoCNF_V_12,Y) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_X_9,skolemFOFtoCNF_V_12) )],[refute_0_13,refute_0_14]) ).

cnf(refute_0_16,plain,
    ( ~ memberP(skolemFOFtoCNF_U_1,Y)
    | ~ ssItem(Y)
    | memberP(skolemFOFtoCNF_V_12,Y) ),
    inference(resolve,[$cnf( memberP(skolemFOFtoCNF_X_9,Y) )],[refute_0_10,refute_0_15]) ).

cnf(refute_0_17,plain,
    ( ~ memberP(skolemFOFtoCNF_U_1,skolemFOFtoCNF_X1)
    | ~ ssItem(skolemFOFtoCNF_X1)
    | memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1) ),
    inference(subst,[],[refute_0_16:[bind(Y,$fot(skolemFOFtoCNF_X1))]]) ).

cnf(refute_0_18,plain,
    ( ~ ssItem(skolemFOFtoCNF_X1)
    | memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1) ),
    inference(resolve,[$cnf( memberP(skolemFOFtoCNF_U_1,skolemFOFtoCNF_X1) )],[refute_0_0,refute_0_17]) ).

cnf(refute_0_19,plain,
    ssItem(skolemFOFtoCNF_X1),
    inference(canonicalize,[],[normalize_0_17]) ).

cnf(refute_0_20,plain,
    memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1),
    inference(resolve,[$cnf( ssItem(skolemFOFtoCNF_X1) )],[refute_0_19,refute_0_18]) ).

cnf(refute_0_21,plain,
    ~ memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1),
    inference(canonicalize,[],[normalize_0_18]) ).

cnf(refute_0_22,plain,
    $false,
    inference(resolve,[$cnf( memberP(skolemFOFtoCNF_V_12,skolemFOFtoCNF_X1) )],[refute_0_20,refute_0_21]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : SWC406+1 : TPTP v8.1.0. Released v2.4.0.
% 0.07/0.14  % Command  : metis --show proof --show saturation %s
% 0.13/0.35  % Computer : n018.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Sun Jun 12 20:06:27 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 2.39/2.59  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 2.39/2.59  
% 2.39/2.59  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 2.44/2.60  
%------------------------------------------------------------------------------