TSTP Solution File: SWC026+1 by Drodi---3.5.1

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%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SWC026+1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n032.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 12:38:56 EDT 2023

% Result   : Theorem 0.14s 0.31s
% Output   : CNFRefutation 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   48 (   4 unt;   0 def)
%            Number of atoms       :  157 (  75 equ)
%            Maximal formula atoms :   14 (   3 avg)
%            Number of connectives :  170 (  61   ~;  59   |;  36   &)
%                                         (   5 <=>;   9  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   17 (   4 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    9 (   7 usr;   6 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   5 con; 0-0 aty)
%            Number of variables   :   25 (;  17   !;   8   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f96,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ssList(X)
                 => ( V != X
                    | U != W
                    | ( nil != X
                      & nil = W )
                    | ( nil != W
                      & nil = X )
                    | ( ( nil != V
                        | nil = U )
                      & ( nil != U
                        | nil = V ) ) ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f97,negated_conjecture,
    ~ ! [U] :
        ( ssList(U)
       => ! [V] :
            ( ssList(V)
           => ! [W] :
                ( ssList(W)
               => ! [X] :
                    ( ssList(X)
                   => ( V != X
                      | U != W
                      | ( nil != X
                        & nil = W )
                      | ( nil != W
                        & nil = X )
                      | ( ( nil != V
                          | nil = U )
                        & ( nil != U
                          | nil = V ) ) ) ) ) ) ),
    inference(negated_conjecture,[status(cth)],[f96]) ).

fof(f415,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X] :
                  ( ssList(X)
                  & V = X
                  & U = W
                  & ( nil = X
                    | nil != W )
                  & ( nil = W
                    | nil != X )
                  & ( ( nil = V
                      & nil != U )
                    | ( nil = U
                      & nil != V ) ) ) ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f97]) ).

fof(f416,plain,
    ! [U,V] :
      ( pd0_0(V,U)
     => ( nil = V
        & nil != U ) ),
    introduced(predicate_definition,[f415]) ).

fof(f417,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X] :
                  ( ssList(X)
                  & V = X
                  & U = W
                  & ( nil = X
                    | nil != W )
                  & ( nil = W
                    | nil != X )
                  & ( pd0_0(V,U)
                    | ( nil = U
                      & nil != V ) ) ) ) ) ),
    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
    & ( nil = sk0_50
      | nil != sk0_49 )
    & ( nil = sk0_49
      | nil != sk0_50 )
    & ( pd0_0(sk0_48,sk0_47)
      | ( nil = sk0_47
        & nil != sk0_48 ) ) ),
    inference(skolemization,[status(esa)],[f417]) ).

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,
    ( nil = sk0_50
    | nil != sk0_49 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f426,plain,
    ( nil = sk0_49
    | nil != sk0_50 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f427,plain,
    ( pd0_0(sk0_48,sk0_47)
    | nil = sk0_47 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f428,plain,
    ( pd0_0(sk0_48,sk0_47)
    | nil != sk0_48 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f429,plain,
    ! [U,V] :
      ( ~ pd0_0(V,U)
      | ( nil = V
        & nil != U ) ),
    inference(pre_NNF_transformation,[status(esa)],[f416]) ).

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

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

fof(f432,plain,
    ( spl0_0
  <=> nil = sk0_50 ),
    introduced(split_symbol_definition) ).

fof(f433,plain,
    ( nil = sk0_50
    | ~ spl0_0 ),
    inference(component_clause,[status(thm)],[f432]) ).

fof(f434,plain,
    ( nil != sk0_50
    | spl0_0 ),
    inference(component_clause,[status(thm)],[f432]) ).

fof(f435,plain,
    ( spl0_1
  <=> nil = sk0_49 ),
    introduced(split_symbol_definition) ).

fof(f436,plain,
    ( nil = sk0_49
    | ~ spl0_1 ),
    inference(component_clause,[status(thm)],[f435]) ).

fof(f437,plain,
    ( nil != sk0_49
    | spl0_1 ),
    inference(component_clause,[status(thm)],[f435]) ).

fof(f438,plain,
    ( spl0_0
    | ~ spl0_1 ),
    inference(split_clause,[status(thm)],[f425,f432,f435]) ).

fof(f439,plain,
    ( spl0_1
    | ~ spl0_0 ),
    inference(split_clause,[status(thm)],[f426,f435,f432]) ).

fof(f440,plain,
    ( spl0_2
  <=> pd0_0(sk0_48,sk0_47) ),
    introduced(split_symbol_definition) ).

fof(f441,plain,
    ( pd0_0(sk0_48,sk0_47)
    | ~ spl0_2 ),
    inference(component_clause,[status(thm)],[f440]) ).

fof(f443,plain,
    ( spl0_3
  <=> nil = sk0_47 ),
    introduced(split_symbol_definition) ).

fof(f444,plain,
    ( nil = sk0_47
    | ~ spl0_3 ),
    inference(component_clause,[status(thm)],[f443]) ).

fof(f446,plain,
    ( spl0_2
    | spl0_3 ),
    inference(split_clause,[status(thm)],[f427,f440,f443]) ).

fof(f447,plain,
    ( spl0_4
  <=> nil = sk0_48 ),
    introduced(split_symbol_definition) ).

fof(f449,plain,
    ( nil != sk0_48
    | spl0_4 ),
    inference(component_clause,[status(thm)],[f447]) ).

fof(f450,plain,
    ( spl0_2
    | ~ spl0_4 ),
    inference(split_clause,[status(thm)],[f428,f440,f447]) ).

fof(f481,plain,
    ! [X0] : ~ pd0_0(X0,nil),
    inference(destructive_equality_resolution,[status(esa)],[f431]) ).

fof(f484,plain,
    ( nil = sk0_47
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f424,f436]) ).

fof(f487,plain,
    ( nil = sk0_48
    | ~ spl0_0 ),
    inference(forward_demodulation,[status(thm)],[f423,f433]) ).

fof(f488,plain,
    ( $false
    | spl0_4
    | ~ spl0_0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f487,f449]) ).

fof(f489,plain,
    ( spl0_4
    | ~ spl0_0 ),
    inference(contradiction_clause,[status(thm)],[f488]) ).

fof(f490,plain,
    ( nil != sk0_48
    | spl0_0 ),
    inference(forward_demodulation,[status(thm)],[f423,f434]) ).

fof(f491,plain,
    ( nil = sk0_48
    | ~ spl0_2 ),
    inference(resolution,[status(thm)],[f441,f430]) ).

fof(f492,plain,
    ( $false
    | spl0_0
    | ~ spl0_2 ),
    inference(forward_subsumption_resolution,[status(thm)],[f491,f490]) ).

fof(f493,plain,
    ( spl0_0
    | ~ spl0_2 ),
    inference(contradiction_clause,[status(thm)],[f492]) ).

fof(f495,plain,
    ( nil = sk0_49
    | ~ spl0_3 ),
    inference(forward_demodulation,[status(thm)],[f444,f424]) ).

fof(f496,plain,
    ( $false
    | spl0_1
    | ~ spl0_3 ),
    inference(forward_subsumption_resolution,[status(thm)],[f495,f437]) ).

fof(f497,plain,
    ( spl0_1
    | ~ spl0_3 ),
    inference(contradiction_clause,[status(thm)],[f496]) ).

fof(f500,plain,
    ( pd0_0(nil,sk0_47)
    | ~ spl0_2 ),
    inference(forward_demodulation,[status(thm)],[f491,f441]) ).

fof(f501,plain,
    ( pd0_0(nil,nil)
    | ~ spl0_1
    | ~ spl0_2 ),
    inference(forward_demodulation,[status(thm)],[f484,f500]) ).

fof(f502,plain,
    ( $false
    | ~ spl0_1
    | ~ spl0_2 ),
    inference(forward_subsumption_resolution,[status(thm)],[f501,f481]) ).

fof(f503,plain,
    ( ~ spl0_1
    | ~ spl0_2 ),
    inference(contradiction_clause,[status(thm)],[f502]) ).

fof(f504,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f438,f439,f446,f450,f489,f493,f497,f503]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.02/0.09  % Problem  : SWC026+1 : TPTP v8.1.2. Released v2.4.0.
% 0.02/0.09  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.09/0.29  % Computer : n032.cluster.edu
% 0.09/0.29  % Model    : x86_64 x86_64
% 0.09/0.29  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.29  % Memory   : 8042.1875MB
% 0.09/0.29  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.09/0.29  % CPULimit : 300
% 0.09/0.29  % WCLimit  : 300
% 0.09/0.29  % DateTime : Tue May 30 11:22:31 EDT 2023
% 0.09/0.30  % CPUTime  : 
% 0.09/0.31  % Drodi V3.5.1
% 0.14/0.31  % Refutation found
% 0.14/0.31  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.14/0.31  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.14/0.53  % Elapsed time: 0.018202 seconds
% 0.14/0.53  % CPU time: 0.017905 seconds
% 0.14/0.53  % Memory used: 4.065 MB
%------------------------------------------------------------------------------