TSTP Solution File: SWC205+1 by Drodi---3.5.1

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%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SWC205+1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %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  : 300s
% DateTime : Wed May 31 12:39:40 EDT 2023

% Result   : Theorem 0.12s 0.38s
% Output   : CNFRefutation 0.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   44 (  10 unt;   0 def)
%            Number of atoms       :  132 (  44 equ)
%            Maximal formula atoms :   12 (   3 avg)
%            Number of connectives :  140 (  52   ~;  48   |;  23   &)
%                                         (   7 <=>;  10  =>;   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   :   20 (;  16   !;   4   ?)

% 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(f96,conjecture,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssList(V)
         => ! [W] :
              ( ssList(W)
             => ! [X] :
                  ( ssList(X)
                 => ( V != X
                    | U != W
                    | ~ neq(V,nil)
                    | neq(U,nil)
                    | ( nil != X
                      & nil = W )
                    | ( nil != W
                      & nil = X ) ) ) ) ) ),
    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)
                      | ( nil != X
                        & nil = W )
                      | ( nil != W
                        & nil = X ) ) ) ) ) ),
    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(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(f415,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X] :
                  ( ssList(X)
                  & V = X
                  & U = W
                  & neq(V,nil)
                  & ~ neq(U,nil)
                  & ( nil = X
                    | nil != W )
                  & ( nil = W
                    | nil != X ) ) ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f97]) ).

fof(f416,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)
    & ( nil = sk0_50
      | nil != sk0_49 )
    & ( nil = sk0_49
      | nil != sk0_50 ) ),
    inference(skolemization,[status(esa)],[f415]) ).

fof(f417,plain,
    ssList(sk0_47),
    inference(cnf_transformation,[status(esa)],[f416]) ).

fof(f421,plain,
    sk0_48 = sk0_50,
    inference(cnf_transformation,[status(esa)],[f416]) ).

fof(f422,plain,
    sk0_47 = sk0_49,
    inference(cnf_transformation,[status(esa)],[f416]) ).

fof(f423,plain,
    neq(sk0_48,nil),
    inference(cnf_transformation,[status(esa)],[f416]) ).

fof(f424,plain,
    ~ neq(sk0_47,nil),
    inference(cnf_transformation,[status(esa)],[f416]) ).

fof(f425,plain,
    ( nil = sk0_50
    | nil != sk0_49 ),
    inference(cnf_transformation,[status(esa)],[f416]) ).

fof(f427,plain,
    ( spl0_0
  <=> nil = sk0_50 ),
    introduced(split_symbol_definition) ).

fof(f428,plain,
    ( nil = sk0_50
    | ~ spl0_0 ),
    inference(component_clause,[status(thm)],[f427]) ).

fof(f430,plain,
    ( spl0_1
  <=> nil = sk0_49 ),
    introduced(split_symbol_definition) ).

fof(f431,plain,
    ( nil = sk0_49
    | ~ spl0_1 ),
    inference(component_clause,[status(thm)],[f430]) ).

fof(f432,plain,
    ( nil != sk0_49
    | spl0_1 ),
    inference(component_clause,[status(thm)],[f430]) ).

fof(f433,plain,
    ( spl0_0
    | ~ spl0_1 ),
    inference(split_clause,[status(thm)],[f425,f427,f430]) ).

fof(f473,plain,
    ( spl0_4
  <=> sk0_47 = nil ),
    introduced(split_symbol_definition) ).

fof(f474,plain,
    ( sk0_47 = nil
    | ~ spl0_4 ),
    inference(component_clause,[status(thm)],[f473]) ).

fof(f478,plain,
    ( spl0_5
  <=> ssList(sk0_47) ),
    introduced(split_symbol_definition) ).

fof(f480,plain,
    ( ~ ssList(sk0_47)
    | spl0_5 ),
    inference(component_clause,[status(thm)],[f478]) ).

fof(f481,plain,
    ( spl0_6
  <=> ssList(nil) ),
    introduced(split_symbol_definition) ).

fof(f483,plain,
    ( ~ ssList(nil)
    | spl0_6 ),
    inference(component_clause,[status(thm)],[f481]) ).

fof(f484,plain,
    ( ~ ssList(sk0_47)
    | ~ ssList(nil)
    | sk0_47 = nil ),
    inference(resolution,[status(thm)],[f220,f424]) ).

fof(f485,plain,
    ( ~ spl0_5
    | ~ spl0_6
    | spl0_4 ),
    inference(split_clause,[status(thm)],[f484,f478,f481,f473]) ).

fof(f486,plain,
    ( $false
    | spl0_6 ),
    inference(forward_subsumption_resolution,[status(thm)],[f483,f223]) ).

fof(f487,plain,
    spl0_6,
    inference(contradiction_clause,[status(thm)],[f486]) ).

fof(f488,plain,
    ( $false
    | spl0_5 ),
    inference(forward_subsumption_resolution,[status(thm)],[f480,f417]) ).

fof(f489,plain,
    spl0_5,
    inference(contradiction_clause,[status(thm)],[f488]) ).

fof(f490,plain,
    ( nil = sk0_47
    | ~ spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f422,f431]) ).

fof(f491,plain,
    ( ~ neq(nil,nil)
    | ~ spl0_1 ),
    inference(backward_demodulation,[status(thm)],[f490,f424]) ).

fof(f494,plain,
    ( nil = sk0_48
    | ~ spl0_0 ),
    inference(forward_demodulation,[status(thm)],[f421,f428]) ).

fof(f495,plain,
    ( neq(nil,nil)
    | ~ spl0_0 ),
    inference(backward_demodulation,[status(thm)],[f494,f423]) ).

fof(f505,plain,
    ( nil = sk0_49
    | ~ spl0_4 ),
    inference(forward_demodulation,[status(thm)],[f474,f422]) ).

fof(f506,plain,
    ( $false
    | spl0_1
    | ~ spl0_4 ),
    inference(forward_subsumption_resolution,[status(thm)],[f505,f432]) ).

fof(f507,plain,
    ( spl0_1
    | ~ spl0_4 ),
    inference(contradiction_clause,[status(thm)],[f506]) ).

fof(f512,plain,
    ( $false
    | ~ spl0_1
    | ~ spl0_0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f495,f491]) ).

fof(f513,plain,
    ( ~ spl0_1
    | ~ spl0_0 ),
    inference(contradiction_clause,[status(thm)],[f512]) ).

fof(f514,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f433,f485,f487,f489,f507,f513]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SWC205+1 : TPTP v8.1.2. Released v2.4.0.
% 0.07/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.12/0.34  % Computer : n018.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Tue May 30 11:32:10 EDT 2023
% 0.12/0.35  % CPUTime  : 
% 0.12/0.37  % Drodi V3.5.1
% 0.12/0.38  % Refutation found
% 0.12/0.38  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.12/0.38  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.22/0.60  % Elapsed time: 0.032979 seconds
% 0.22/0.60  % CPU time: 0.037727 seconds
% 0.22/0.60  % Memory used: 4.069 MB
%------------------------------------------------------------------------------