TSTP Solution File: SWC029+1 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SWC029+1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n027.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 12:38:57 EDT 2023

% Result   : Theorem 0.14s 0.32s
% Output   : CNFRefutation 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   24
% Syntax   : Number of formulae    :  114 (  12 unt;   0 def)
%            Number of atoms       :  377 ( 102 equ)
%            Maximal formula atoms :   17 (   3 avg)
%            Number of connectives :  434 ( 171   ~; 160   |;  61   &)
%                                         (  22 <=>;  20  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   21 (   4 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :   23 (  21 usr;  17 prp; 0-2 aty)
%            Number of functors    :   13 (  13 usr;   9 con; 0-2 aty)
%            Number of variables   :   85 (;  65   !;  20   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [U] :
      ( ssItem(U)
     => ! [V] :
          ( ssItem(V)
         => ( neq(U,V)
          <=> U != V ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f2,axiom,
    ? [U] :
      ( ssItem(U)
      & ? [V] :
          ( ssItem(V)
          & U != V ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f3,axiom,
    ! [U] :
      ( ssList(U)
     => ! [V] :
          ( ssItem(V)
         => ( memberP(U,V)
          <=> ? [W] :
                ( ssList(W)
                & ? [X] :
                    ( ssList(X)
                    & app(W,cons(V,X)) = U ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

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

fof(f38,axiom,
    ! [U] :
      ( ssItem(U)
     => ~ memberP(nil,U) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f98,plain,
    ! [U] :
      ( ~ ssItem(U)
      | ! [V] :
          ( ~ ssItem(V)
          | ( neq(U,V)
          <=> U != V ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f1]) ).

fof(f99,plain,
    ! [U] :
      ( ~ ssItem(U)
      | ! [V] :
          ( ~ ssItem(V)
          | ( ( ~ neq(U,V)
              | U != V )
            & ( neq(U,V)
              | U = V ) ) ) ),
    inference(NNF_transformation,[status(esa)],[f98]) ).

fof(f100,plain,
    ! [X0,X1] :
      ( ~ ssItem(X0)
      | ~ ssItem(X1)
      | ~ neq(X0,X1)
      | X0 != X1 ),
    inference(cnf_transformation,[status(esa)],[f99]) ).

fof(f101,plain,
    ! [X0,X1] :
      ( ~ ssItem(X0)
      | ~ ssItem(X1)
      | neq(X0,X1)
      | X0 = X1 ),
    inference(cnf_transformation,[status(esa)],[f99]) ).

fof(f102,plain,
    ( ssItem(sk0_0)
    & ssItem(sk0_1)
    & sk0_0 != sk0_1 ),
    inference(skolemization,[status(esa)],[f2]) ).

fof(f103,plain,
    ssItem(sk0_0),
    inference(cnf_transformation,[status(esa)],[f102]) ).

fof(f106,plain,
    ! [U] :
      ( ~ ssList(U)
      | ! [V] :
          ( ~ ssItem(V)
          | ( memberP(U,V)
          <=> ? [W] :
                ( ssList(W)
                & ? [X] :
                    ( ssList(X)
                    & app(W,cons(V,X)) = U ) ) ) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f3]) ).

fof(f107,plain,
    ! [U] :
      ( ~ ssList(U)
      | ! [V] :
          ( ~ ssItem(V)
          | ( ( ~ memberP(U,V)
              | ? [W] :
                  ( ssList(W)
                  & ? [X] :
                      ( ssList(X)
                      & app(W,cons(V,X)) = U ) ) )
            & ( memberP(U,V)
              | ! [W] :
                  ( ~ ssList(W)
                  | ! [X] :
                      ( ~ ssList(X)
                      | app(W,cons(V,X)) != U ) ) ) ) ) ),
    inference(NNF_transformation,[status(esa)],[f106]) ).

fof(f108,plain,
    ! [U] :
      ( ~ ssList(U)
      | ! [V] :
          ( ~ ssItem(V)
          | ( ( ~ memberP(U,V)
              | ( ssList(sk0_2(V,U))
                & ssList(sk0_3(V,U))
                & app(sk0_2(V,U),cons(V,sk0_3(V,U))) = U ) )
            & ( memberP(U,V)
              | ! [W] :
                  ( ~ ssList(W)
                  | ! [X] :
                      ( ~ ssList(X)
                      | app(W,cons(V,X)) != U ) ) ) ) ) ),
    inference(skolemization,[status(esa)],[f107]) ).

fof(f112,plain,
    ! [X0,X1,X2,X3] :
      ( ~ ssList(X0)
      | ~ ssItem(X1)
      | memberP(X0,X1)
      | ~ ssList(X2)
      | ~ ssList(X3)
      | app(X2,cons(X1,X3)) != X0 ),
    inference(cnf_transformation,[status(esa)],[f108]) ).

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(f278,plain,
    ! [U] :
      ( ~ ssItem(U)
      | ~ memberP(nil,U) ),
    inference(pre_NNF_transformation,[status(esa)],[f38]) ).

fof(f279,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | ~ memberP(nil,X0) ),
    inference(cnf_transformation,[status(esa)],[f278]) ).

fof(f415,plain,
    ? [U] :
      ( ssList(U)
      & ? [V] :
          ( ssList(V)
          & ? [W] :
              ( ssList(W)
              & ? [X] :
                  ( ssList(X)
                  & V = X
                  & U = W
                  & ( nil = W
                    | nil != X )
                  & ( ? [Y] :
                        ( ssItem(Y)
                        & ? [Z] :
                            ( ssList(Z)
                            & app(cons(Y,nil),Z) = X
                            & app(Z,cons(Y,nil)) = W ) )
                    | ~ neq(X,nil) )
                  & ( ( 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 = W
                    | nil != X )
                  & ( ? [Y] :
                        ( ssItem(Y)
                        & ? [Z] :
                            ( ssList(Z)
                            & app(cons(Y,nil),Z) = X
                            & app(Z,cons(Y,nil)) = W ) )
                    | ~ neq(X,nil) )
                  & ( 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_49
      | nil != sk0_50 )
    & ( ( ssItem(sk0_51)
        & ssList(sk0_52)
        & app(cons(sk0_51,nil),sk0_52) = sk0_50
        & app(sk0_52,cons(sk0_51,nil)) = sk0_49 )
      | ~ neq(sk0_50,nil) )
    & ( pd0_0(sk0_48,sk0_47)
      | ( nil = sk0_47
        & nil != sk0_48 ) ) ),
    inference(skolemization,[status(esa)],[f417]) ).

fof(f420,plain,
    ssList(sk0_48),
    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,
    ( nil = sk0_49
    | nil != sk0_50 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f426,plain,
    ( ssItem(sk0_51)
    | ~ neq(sk0_50,nil) ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f427,plain,
    ( ssList(sk0_52)
    | ~ neq(sk0_50,nil) ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f428,plain,
    ( app(cons(sk0_51,nil),sk0_52) = sk0_50
    | ~ neq(sk0_50,nil) ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f429,plain,
    ( app(sk0_52,cons(sk0_51,nil)) = sk0_49
    | ~ neq(sk0_50,nil) ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f430,plain,
    ( pd0_0(sk0_48,sk0_47)
    | nil = sk0_47 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f431,plain,
    ( pd0_0(sk0_48,sk0_47)
    | nil != sk0_48 ),
    inference(cnf_transformation,[status(esa)],[f418]) ).

fof(f432,plain,
    ! [U,V] :
      ( ~ pd0_0(V,U)
      | ( nil = V
        & nil != U ) ),
    inference(pre_NNF_transformation,[status(esa)],[f416]) ).

fof(f433,plain,
    ! [X0,X1] :
      ( ~ pd0_0(X0,X1)
      | nil = X0 ),
    inference(cnf_transformation,[status(esa)],[f432]) ).

fof(f434,plain,
    ! [X0,X1] :
      ( ~ pd0_0(X0,X1)
      | nil != X1 ),
    inference(cnf_transformation,[status(esa)],[f432]) ).

fof(f435,plain,
    ( spl0_0
  <=> nil = sk0_49 ),
    introduced(split_symbol_definition) ).

fof(f436,plain,
    ( nil = sk0_49
    | ~ spl0_0 ),
    inference(component_clause,[status(thm)],[f435]) ).

fof(f438,plain,
    ( spl0_1
  <=> nil = sk0_50 ),
    introduced(split_symbol_definition) ).

fof(f440,plain,
    ( nil != sk0_50
    | spl0_1 ),
    inference(component_clause,[status(thm)],[f438]) ).

fof(f441,plain,
    ( spl0_0
    | ~ spl0_1 ),
    inference(split_clause,[status(thm)],[f425,f435,f438]) ).

fof(f442,plain,
    ( spl0_2
  <=> ssItem(sk0_51) ),
    introduced(split_symbol_definition) ).

fof(f443,plain,
    ( ssItem(sk0_51)
    | ~ spl0_2 ),
    inference(component_clause,[status(thm)],[f442]) ).

fof(f445,plain,
    ( spl0_3
  <=> neq(sk0_50,nil) ),
    introduced(split_symbol_definition) ).

fof(f447,plain,
    ( ~ neq(sk0_50,nil)
    | spl0_3 ),
    inference(component_clause,[status(thm)],[f445]) ).

fof(f448,plain,
    ( spl0_2
    | ~ spl0_3 ),
    inference(split_clause,[status(thm)],[f426,f442,f445]) ).

fof(f449,plain,
    ( spl0_4
  <=> ssList(sk0_52) ),
    introduced(split_symbol_definition) ).

fof(f452,plain,
    ( spl0_4
    | ~ spl0_3 ),
    inference(split_clause,[status(thm)],[f427,f449,f445]) ).

fof(f453,plain,
    ( spl0_5
  <=> app(cons(sk0_51,nil),sk0_52) = sk0_50 ),
    introduced(split_symbol_definition) ).

fof(f456,plain,
    ( spl0_5
    | ~ spl0_3 ),
    inference(split_clause,[status(thm)],[f428,f453,f445]) ).

fof(f457,plain,
    ( spl0_6
  <=> app(sk0_52,cons(sk0_51,nil)) = sk0_49 ),
    introduced(split_symbol_definition) ).

fof(f458,plain,
    ( app(sk0_52,cons(sk0_51,nil)) = sk0_49
    | ~ spl0_6 ),
    inference(component_clause,[status(thm)],[f457]) ).

fof(f460,plain,
    ( spl0_6
    | ~ spl0_3 ),
    inference(split_clause,[status(thm)],[f429,f457,f445]) ).

fof(f461,plain,
    ( spl0_7
  <=> pd0_0(sk0_48,sk0_47) ),
    introduced(split_symbol_definition) ).

fof(f462,plain,
    ( pd0_0(sk0_48,sk0_47)
    | ~ spl0_7 ),
    inference(component_clause,[status(thm)],[f461]) ).

fof(f464,plain,
    ( spl0_8
  <=> nil = sk0_47 ),
    introduced(split_symbol_definition) ).

fof(f465,plain,
    ( nil = sk0_47
    | ~ spl0_8 ),
    inference(component_clause,[status(thm)],[f464]) ).

fof(f467,plain,
    ( spl0_7
    | spl0_8 ),
    inference(split_clause,[status(thm)],[f430,f461,f464]) ).

fof(f468,plain,
    ( spl0_9
  <=> nil = sk0_48 ),
    introduced(split_symbol_definition) ).

fof(f471,plain,
    ( spl0_7
    | ~ spl0_9 ),
    inference(split_clause,[status(thm)],[f431,f461,f468]) ).

fof(f472,plain,
    ! [X1] :
      ( ~ ssItem(X1)
      | ~ ssItem(X1)
      | ~ neq(X1,X1) ),
    inference(destructive_equality_resolution,[status(esa)],[f100]) ).

fof(f473,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | ~ neq(X0,X0) ),
    inference(duplicate_literals_removal,[status(esa)],[f472]) ).

fof(f474,plain,
    ! [X0,X1,X2] :
      ( ~ ssList(app(X0,cons(X1,X2)))
      | ~ ssItem(X1)
      | memberP(app(X0,cons(X1,X2)),X1)
      | ~ ssList(X0)
      | ~ ssList(X2) ),
    inference(destructive_equality_resolution,[status(esa)],[f112]) ).

fof(f502,plain,
    ! [X0] : ~ pd0_0(X0,nil),
    inference(destructive_equality_resolution,[status(esa)],[f434]) ).

fof(f511,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | neq(X0,sk0_0)
      | X0 = sk0_0 ),
    inference(resolution,[status(thm)],[f103,f101]) ).

fof(f512,plain,
    ~ neq(sk0_0,sk0_0),
    inference(resolution,[status(thm)],[f103,f473]) ).

fof(f518,plain,
    ( spl0_11
  <=> sk0_0 = sk0_0 ),
    introduced(split_symbol_definition) ).

fof(f531,plain,
    ( ~ neq(sk0_48,nil)
    | spl0_3 ),
    inference(forward_demodulation,[status(thm)],[f423,f447]) ).

fof(f532,plain,
    ( spl0_14
  <=> ssList(sk0_48) ),
    introduced(split_symbol_definition) ).

fof(f534,plain,
    ( ~ ssList(sk0_48)
    | spl0_14 ),
    inference(component_clause,[status(thm)],[f532]) ).

fof(f535,plain,
    ( spl0_15
  <=> ssList(nil) ),
    introduced(split_symbol_definition) ).

fof(f537,plain,
    ( ~ ssList(nil)
    | spl0_15 ),
    inference(component_clause,[status(thm)],[f535]) ).

fof(f538,plain,
    ( ~ ssList(sk0_48)
    | ~ ssList(nil)
    | sk0_48 = nil
    | spl0_3 ),
    inference(resolution,[status(thm)],[f531,f220]) ).

fof(f539,plain,
    ( ~ spl0_14
    | ~ spl0_15
    | spl0_9
    | spl0_3 ),
    inference(split_clause,[status(thm)],[f538,f532,f535,f468,f445]) ).

fof(f540,plain,
    ( $false
    | spl0_15 ),
    inference(forward_subsumption_resolution,[status(thm)],[f537,f223]) ).

fof(f541,plain,
    spl0_15,
    inference(contradiction_clause,[status(thm)],[f540]) ).

fof(f542,plain,
    ( nil != sk0_48
    | spl0_1 ),
    inference(forward_demodulation,[status(thm)],[f423,f440]) ).

fof(f543,plain,
    ( $false
    | spl0_14 ),
    inference(forward_subsumption_resolution,[status(thm)],[f534,f420]) ).

fof(f544,plain,
    spl0_14,
    inference(contradiction_clause,[status(thm)],[f543]) ).

fof(f546,plain,
    ( app(sk0_52,cons(sk0_51,nil)) = sk0_47
    | ~ spl0_6 ),
    inference(forward_demodulation,[status(thm)],[f424,f458]) ).

fof(f548,plain,
    ! [X0] :
      ( ~ ssItem(X0)
      | neq(X0,sk0_51)
      | X0 = sk0_51
      | ~ spl0_2 ),
    inference(resolution,[status(thm)],[f443,f101]) ).

fof(f549,plain,
    ( ~ neq(sk0_51,sk0_51)
    | ~ spl0_2 ),
    inference(resolution,[status(thm)],[f443,f473]) ).

fof(f550,plain,
    ( nil = sk0_48
    | ~ spl0_7 ),
    inference(resolution,[status(thm)],[f462,f433]) ).

fof(f551,plain,
    ( $false
    | spl0_1
    | ~ spl0_7 ),
    inference(forward_subsumption_resolution,[status(thm)],[f550,f542]) ).

fof(f552,plain,
    ( spl0_1
    | ~ spl0_7 ),
    inference(contradiction_clause,[status(thm)],[f551]) ).

fof(f553,plain,
    ( nil = sk0_47
    | ~ spl0_0 ),
    inference(forward_demodulation,[status(thm)],[f424,f436]) ).

fof(f563,plain,
    ( spl0_17
  <=> sk0_51 = sk0_51 ),
    introduced(split_symbol_definition) ).

fof(f576,plain,
    ( pd0_0(nil,sk0_47)
    | ~ spl0_7 ),
    inference(forward_demodulation,[status(thm)],[f550,f462]) ).

fof(f577,plain,
    ( pd0_0(nil,nil)
    | ~ spl0_0
    | ~ spl0_7 ),
    inference(forward_demodulation,[status(thm)],[f553,f576]) ).

fof(f578,plain,
    ( $false
    | ~ spl0_0
    | ~ spl0_7 ),
    inference(forward_subsumption_resolution,[status(thm)],[f577,f502]) ).

fof(f579,plain,
    ( ~ spl0_0
    | ~ spl0_7 ),
    inference(contradiction_clause,[status(thm)],[f578]) ).

fof(f582,plain,
    ( ~ ssItem(sk0_51)
    | sk0_51 = sk0_51
    | ~ spl0_2 ),
    inference(resolution,[status(thm)],[f548,f549]) ).

fof(f583,plain,
    ( ~ spl0_2
    | spl0_17 ),
    inference(split_clause,[status(thm)],[f582,f442,f563]) ).

fof(f586,plain,
    ( app(sk0_52,cons(sk0_51,nil)) = nil
    | ~ spl0_8
    | ~ spl0_6 ),
    inference(forward_demodulation,[status(thm)],[f465,f546]) ).

fof(f604,plain,
    ( spl0_18
  <=> ssItem(sk0_0) ),
    introduced(split_symbol_definition) ).

fof(f606,plain,
    ( ~ ssItem(sk0_0)
    | spl0_18 ),
    inference(component_clause,[status(thm)],[f604]) ).

fof(f607,plain,
    ( ~ ssItem(sk0_0)
    | sk0_0 = sk0_0 ),
    inference(resolution,[status(thm)],[f511,f512]) ).

fof(f608,plain,
    ( ~ spl0_18
    | spl0_11 ),
    inference(split_clause,[status(thm)],[f607,f604,f518]) ).

fof(f611,plain,
    ( $false
    | spl0_18 ),
    inference(forward_subsumption_resolution,[status(thm)],[f606,f103]) ).

fof(f612,plain,
    spl0_18,
    inference(contradiction_clause,[status(thm)],[f611]) ).

fof(f619,plain,
    ( spl0_19
  <=> memberP(app(sk0_52,cons(sk0_51,nil)),sk0_51) ),
    introduced(split_symbol_definition) ).

fof(f620,plain,
    ( memberP(app(sk0_52,cons(sk0_51,nil)),sk0_51)
    | ~ spl0_19 ),
    inference(component_clause,[status(thm)],[f619]) ).

fof(f622,plain,
    ( ~ ssList(nil)
    | ~ ssItem(sk0_51)
    | memberP(app(sk0_52,cons(sk0_51,nil)),sk0_51)
    | ~ ssList(sk0_52)
    | ~ ssList(nil)
    | ~ spl0_8
    | ~ spl0_6 ),
    inference(paramodulation,[status(thm)],[f586,f474]) ).

fof(f623,plain,
    ( ~ spl0_15
    | ~ spl0_2
    | spl0_19
    | ~ spl0_4
    | ~ spl0_8
    | ~ spl0_6 ),
    inference(split_clause,[status(thm)],[f622,f535,f442,f619,f449,f464,f457]) ).

fof(f624,plain,
    ( memberP(nil,sk0_51)
    | ~ spl0_8
    | ~ spl0_6
    | ~ spl0_19 ),
    inference(forward_demodulation,[status(thm)],[f586,f620]) ).

fof(f625,plain,
    ( ~ ssItem(sk0_51)
    | ~ spl0_8
    | ~ spl0_6
    | ~ spl0_19 ),
    inference(resolution,[status(thm)],[f624,f279]) ).

fof(f626,plain,
    ( $false
    | ~ spl0_2
    | ~ spl0_8
    | ~ spl0_6
    | ~ spl0_19 ),
    inference(forward_subsumption_resolution,[status(thm)],[f625,f443]) ).

fof(f627,plain,
    ( ~ spl0_2
    | ~ spl0_8
    | ~ spl0_6
    | ~ spl0_19 ),
    inference(contradiction_clause,[status(thm)],[f626]) ).

fof(f628,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f441,f448,f452,f456,f460,f467,f471,f539,f541,f544,f552,f579,f583,f608,f612,f623,f627]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.09  % Problem  : SWC029+1 : TPTP v8.1.2. Released v2.4.0.
% 0.00/0.10  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.09/0.29  % Computer : n027.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 11:43:17 EDT 2023
% 0.09/0.30  % CPUTime  : 
% 0.14/0.31  % Drodi V3.5.1
% 0.14/0.32  % Refutation found
% 0.14/0.32  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.14/0.32  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.14/0.54  % Elapsed time: 0.022767 seconds
% 0.14/0.54  % CPU time: 0.020387 seconds
% 0.14/0.54  % Memory used: 4.155 MB
%------------------------------------------------------------------------------