TSTP Solution File: SWC207+1 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SWC207+1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n013.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 May 31 12:39:40 EDT 2023

% Result   : Theorem 0.13s 0.37s
% Output   : CNFRefutation 0.32s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   59 (  11 unt;   0 def)
%            Number of atoms       :  205 (  50 equ)
%            Maximal formula atoms :   17 (   3 avg)
%            Number of connectives :  234 (  88   ~;  78   |;  45   &)
%                                         (   8 <=>;  15  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   23 (   5 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :   14 (  12 usr;   7 prp; 0-3 aty)
%            Number of functors    :    7 (   7 usr;   6 con; 0-2 aty)
%            Number of variables   :   55 (;  43   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f15,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ( neq(U,V)
          <=> U != V ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f17,axiom,
    ssList(nil),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f18,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => cons(V,U) != U ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f96,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ssList(X)
                 => ( V != X
                    | U != W
                    | ~ neq(V,nil)
                    | neq(U,nil)
                    | ( ! [Y] :
                          ( ssItem(Y)
                         => ( cons(Y,nil) != W
                            | ~ memberP(X,Y)
                            | ? [Z] :
                                ( ssItem(Z)
                                & Y != Z
                                & memberP(X,Z)
                                & leq(Y,Z) ) ) )
                      & ( nil != X
                        | nil != W ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f97,negated_conjecture,
    ~ ! [U] :
        ( ssList(U)
       => ! [V] :
            ( ssList(V)
           => ! [W] :
                ( ssList(W)
               => ! [X] :
                    ( ssList(X)
                   => ( V != X
                      | U != W
                      | ~ neq(V,nil)
                      | neq(U,nil)
                      | ( ! [Y] :
                            ( ssItem(Y)
                           => ( cons(Y,nil) != W
                              | ~ memberP(X,Y)
                              | ? [Z] :
                                  ( ssItem(Z)
                                  & Y != Z
                                  & memberP(X,Z)
                                  & leq(Y,Z) ) ) )
                        & ( nil != X
                          | nil != W ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f96]) ).

fof(f217,plain,
    ! [U] :
      ( ~ ssList(U)
      | ! [V] :
          ( ~ ssList(V)
          | ( neq(U,V)
          <=> U != V ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f15]) ).

fof(f218,plain,
    ! [U] :
      ( ~ ssList(U)
      | ! [V] :
          ( ~ ssList(V)
          | ( ( ~ neq(U,V)
              | U != V )
            & ( neq(U,V)
              | U = V ) ) ) ),
    inference(NNF_transformation,[status(esa)],[f217]) ).

fof(f219,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | ~ ssList(X1)
      | ~ neq(X0,X1)
      | X0 != X1 ),
    inference(cnf_transformation,[status(esa)],[f218]) ).

fof(f220,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | ~ ssList(X1)
      | neq(X0,X1)
      | X0 = X1 ),
    inference(cnf_transformation,[status(esa)],[f218]) ).

fof(f223,plain,
    ssList(nil),
    inference(cnf_transformation,[status(esa)],[f17]) ).

fof(f224,plain,
    ! [U] :
      ( ~ ssList(U)
      | ! [V] :
          ( ~ ssItem(V)
          | cons(V,U) != U ) ),
    inference(pre_NNF_transformation,[status(esa)],[f18]) ).

fof(f225,plain,
    ! [X0,X1] :
      ( ~ ssList(X0)
      | ~ ssItem(X1)
      | cons(X1,X0) != X0 ),
    inference(cnf_transformation,[status(esa)],[f224]) ).

fof(f415,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X] :
                  ( ssList(X)
                  & V = X
                  & U = W
                  & neq(V,nil)
                  & ~ neq(U,nil)
                  & ( ? [Y] :
                        ( ssItem(Y)
                        & cons(Y,nil) = W
                        & memberP(X,Y)
                        & ! [Z] :
                            ( ~ ssItem(Z)
                            | Y = Z
                            | ~ memberP(X,Z)
                            | ~ leq(Y,Z) ) )
                    | ( nil = X
                      & nil = W ) ) ) ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f97]) ).

fof(f416,plain,
    ! [W,X,Y] :
      ( pd0_0(Y,X,W)
     => ( ssItem(Y)
        & cons(Y,nil) = W
        & memberP(X,Y)
        & ! [Z] :
            ( ~ ssItem(Z)
            | Y = Z
            | ~ memberP(X,Z)
            | ~ leq(Y,Z) ) ) ),
    introduced(predicate_definition,[f415]) ).

fof(f417,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X] :
                  ( ssList(X)
                  & V = X
                  & U = W
                  & neq(V,nil)
                  & ~ neq(U,nil)
                  & ( ? [Y] : pd0_0(Y,X,W)
                    | ( nil = X
                      & nil = W ) ) ) ) ) ),
    inference(formula_renaming,[status(thm)],[f415,f416]) ).

fof(f418,plain,
    ( ssList(sk0_47)
    & ssList(sk0_48)
    & ssList(sk0_49)
    & ssList(sk0_50)
    & sk0_48 = sk0_50
    & sk0_47 = sk0_49
    & neq(sk0_48,nil)
    & ~ neq(sk0_47,nil)
    & ( pd0_0(sk0_51,sk0_50,sk0_49)
      | ( nil = sk0_50
        & nil = sk0_49 ) ) ),
    inference(skolemization,[status(esa)],[f417]) ).

fof(f419,plain,
    ssList(sk0_47),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f423,plain,
    sk0_48 = sk0_50,
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f424,plain,
    sk0_47 = sk0_49,
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f425,plain,
    neq(sk0_48,nil),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f426,plain,
    ~ neq(sk0_47,nil),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f427,plain,
    ( pd0_0(sk0_51,sk0_50,sk0_49)
    | nil = sk0_50 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f429,plain,
    ! [W,X,Y] :
      ( ~ pd0_0(Y,X,W)
      | ( ssItem(Y)
        & cons(Y,nil) = W
        & memberP(X,Y)
        & ! [Z] :
            ( ~ ssItem(Z)
            | Y = Z
            | ~ memberP(X,Z)
            | ~ leq(Y,Z) ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f416]) ).

fof(f430,plain,
    ! [X0,X1,X2] :
      ( ~ pd0_0(X0,X1,X2)
      | ssItem(X0) ),
    inference(cnf_transformation,[status(esa)],[f429]) ).

fof(f431,plain,
    ! [X0,X1,X2] :
      ( ~ pd0_0(X0,X1,X2)
      | cons(X0,nil) = X2 ),
    inference(cnf_transformation,[status(esa)],[f429]) ).

fof(f434,plain,
    ( spl0_0
  <=> pd0_0(sk0_51,sk0_50,sk0_49) ),
    introduced(split_symbol_definition) ).

fof(f435,plain,
    ( pd0_0(sk0_51,sk0_50,sk0_49)
    | ~ spl0_0 ),
    inference(component_clause,[status(thm)],[f434]) ).

fof(f437,plain,
    ( spl0_1
  <=> nil = sk0_50 ),
    introduced(split_symbol_definition) ).

fof(f438,plain,
    ( nil = sk0_50
    | ~ spl0_1 ),
    inference(component_clause,[status(thm)],[f437]) ).

fof(f440,plain,
    ( spl0_0
    | spl0_1 ),
    inference(split_clause,[status(thm)],[f427,f434,f437]) ).

fof(f460,plain,
    ! [X1] :
      ( ~ ssList(X1)
      | ~ ssList(X1)
      | ~ neq(X1,X1) ),
    inference(destructive_equality_resolution,[status(esa)],[f219]) ).

fof(f461,plain,
    ! [X0] :
      ( ~ ssList(X0)
      | ~ neq(X0,X0) ),
    inference(duplicate_literals_removal,[status(esa)],[f460]) ).

fof(f483,plain,
    ( spl0_5
  <=> sk0_47 = nil ),
    introduced(split_symbol_definition) ).

fof(f488,plain,
    ( pd0_0(sk0_51,sk0_48,sk0_49)
    | ~ spl0_0 ),
    inference(forward_demodulation,[status(thm)],[f423,f435]) ).

fof(f489,plain,
    ( pd0_0(sk0_51,sk0_48,sk0_47)
    | ~ spl0_0 ),
    inference(forward_demodulation,[status(thm)],[f424,f488]) ).

fof(f491,plain,
    ( ssItem(sk0_51)
    | ~ spl0_0 ),
    inference(resolution,[status(thm)],[f489,f430]) ).

fof(f492,plain,
    ( cons(sk0_51,nil) = sk0_47
    | ~ spl0_0 ),
    inference(resolution,[status(thm)],[f431,f489]) ).

fof(f496,plain,
    ( spl0_7
  <=> ssItem(sk0_51) ),
    introduced(split_symbol_definition) ).

fof(f498,plain,
    ( ~ ssItem(sk0_51)
    | spl0_7 ),
    inference(component_clause,[status(thm)],[f496]) ).

fof(f499,plain,
    ( spl0_8
  <=> ssList(nil) ),
    introduced(split_symbol_definition) ).

fof(f501,plain,
    ( ~ ssList(nil)
    | spl0_8 ),
    inference(component_clause,[status(thm)],[f499]) ).

fof(f504,plain,
    ( ~ ssList(nil)
    | ~ ssItem(sk0_51)
    | sk0_47 != nil
    | ~ spl0_0 ),
    inference(paramodulation,[status(thm)],[f492,f225]) ).

fof(f505,plain,
    ( ~ spl0_8
    | ~ spl0_7
    | ~ spl0_5
    | ~ spl0_0 ),
    inference(split_clause,[status(thm)],[f504,f499,f496,f483,f434]) ).

fof(f506,plain,
    ( nil = sk0_48
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f423,f438]) ).

fof(f508,plain,
    ( neq(nil,nil)
    | ~ spl0_1 ),
    inference(backward_demodulation,[status(thm)],[f506,f425]) ).

fof(f514,plain,
    ( ~ ssList(nil)
    | ~ spl0_1 ),
    inference(resolution,[status(thm)],[f508,f461]) ).

fof(f515,plain,
    ( $false
    | ~ spl0_1 ),
    inference(forward_subsumption_resolution,[status(thm)],[f514,f223]) ).

fof(f516,plain,
    ~ spl0_1,
    inference(contradiction_clause,[status(thm)],[f515]) ).

fof(f517,plain,
    ( $false
    | spl0_7
    | ~ spl0_0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f491,f498]) ).

fof(f518,plain,
    ( spl0_7
    | ~ spl0_0 ),
    inference(contradiction_clause,[status(thm)],[f517]) ).

fof(f519,plain,
    ( $false
    | spl0_8 ),
    inference(forward_subsumption_resolution,[status(thm)],[f501,f223]) ).

fof(f520,plain,
    spl0_8,
    inference(contradiction_clause,[status(thm)],[f519]) ).

fof(f543,plain,
    ( spl0_11
  <=> ssList(sk0_47) ),
    introduced(split_symbol_definition) ).

fof(f545,plain,
    ( ~ ssList(sk0_47)
    | spl0_11 ),
    inference(component_clause,[status(thm)],[f543]) ).

fof(f546,plain,
    ( ~ ssList(sk0_47)
    | ~ ssList(nil)
    | sk0_47 = nil ),
    inference(resolution,[status(thm)],[f220,f426]) ).

fof(f547,plain,
    ( ~ spl0_11
    | ~ spl0_8
    | spl0_5 ),
    inference(split_clause,[status(thm)],[f546,f543,f499,f483]) ).

fof(f548,plain,
    ( $false
    | spl0_11 ),
    inference(forward_subsumption_resolution,[status(thm)],[f545,f419]) ).

fof(f549,plain,
    spl0_11,
    inference(contradiction_clause,[status(thm)],[f548]) ).

fof(f550,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f440,f505,f516,f518,f520,f547,f549]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SWC207+1 : TPTP v8.1.2. Released v2.4.0.
% 0.07/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.13/0.34  % Computer : n013.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  : 300
% 0.13/0.34  % DateTime : Tue May 30 11:15:20 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.13/0.36  % Drodi V3.5.1
% 0.13/0.37  % Refutation found
% 0.13/0.37  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.13/0.37  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.32/0.59  % Elapsed time: 0.031145 seconds
% 0.32/0.59  % CPU time: 0.052837 seconds
% 0.32/0.59  % Memory used: 16.189 MB
%------------------------------------------------------------------------------