TSTP Solution File: SWC015+1 by ET---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : ET---2.0
% Problem  : SWC015+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_ET %s %d

% Computer : n014.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 20:26:09 EDT 2022

% Result   : Theorem 0.25s 1.42s
% Output   : CNFRefutation 0.25s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   28
%            Number of leaves      :   13
% Syntax   : Number of formulae    :   81 (  12 unt;   0 def)
%            Number of atoms       :  343 ( 133 equ)
%            Maximal formula atoms :   34 (   4 avg)
%            Number of connectives :  442 ( 180   ~; 192   |;  36   &)
%                                         (   3 <=>;  31  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   22 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    6 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :   10 (  10 usr;   5 con; 0-2 aty)
%            Number of variables   :   97 (   0 sgn  49   !;   9   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(co1,conjecture,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssList(X2)
         => ! [X3] :
              ( ssList(X3)
             => ! [X4] :
                  ( ssList(X4)
                 => ( X2 != X4
                    | X1 != X3
                    | ( ( ~ neq(X2,nil)
                        | ? [X5] :
                            ( ssList(X5)
                            & X4 != X5
                            & ? [X6] :
                                ( ssList(X6)
                                & tl(X4) = X6
                                & app(X3,X6) = X5
                                & neq(nil,X4) ) )
                        | ? [X7] :
                            ( ssItem(X7)
                            & ? [X8] :
                                ( ssList(X8)
                                & cons(X7,nil) = X1
                                & app(cons(X7,nil),X8) = X2 ) ) )
                      & ( ~ neq(X2,nil)
                        | neq(X4,nil) ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',co1) ).

fof(ax26,axiom,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssList(X2)
         => ssList(app(X1,X2)) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax26) ).

fof(ax79,axiom,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssList(X2)
         => ! [X3] :
              ( ssList(X3)
             => ( app(X3,X2) = app(X1,X2)
               => X3 = X1 ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax79) ).

fof(ax28,axiom,
    ! [X1] :
      ( ssList(X1)
     => app(nil,X1) = X1 ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax28) ).

fof(ax86,axiom,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssList(X2)
         => ( nil != X1
           => tl(app(X1,X2)) = app(tl(X1),X2) ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax86) ).

fof(ax17,axiom,
    ssList(nil),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax17) ).

fof(ax24,axiom,
    ! [X1] :
      ( ssList(X1)
     => ( nil != X1
       => ssList(tl(X1)) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax24) ).

fof(ax4,axiom,
    ! [X1] :
      ( ssList(X1)
     => ( singletonP(X1)
      <=> ? [X2] :
            ( ssItem(X2)
            & cons(X2,nil) = X1 ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax4) ).

fof(ax78,axiom,
    ! [X1] :
      ( ssList(X1)
     => ( nil != X1
       => cons(hd(X1),tl(X1)) = X1 ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax78) ).

fof(ax83,axiom,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssList(X2)
         => ( nil = app(X1,X2)
          <=> ( nil = X2
              & nil = X1 ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax83) ).

fof(ax22,axiom,
    ! [X1] :
      ( ssList(X1)
     => ( nil != X1
       => ssItem(hd(X1)) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax22) ).

fof(ax15,axiom,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssList(X2)
         => ( neq(X1,X2)
          <=> X1 != X2 ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax15) ).

fof(ax18,axiom,
    ! [X1] :
      ( ssList(X1)
     => ! [X2] :
          ( ssItem(X2)
         => cons(X2,X1) != X1 ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SWC001+0.ax',ax18) ).

fof(c_0_13,negated_conjecture,
    ~ ! [X1] :
        ( ssList(X1)
       => ! [X2] :
            ( ssList(X2)
           => ! [X3] :
                ( ssList(X3)
               => ! [X4] :
                    ( ssList(X4)
                   => ( X2 != X4
                      | X1 != X3
                      | ( ( ~ neq(X2,nil)
                          | ? [X5] :
                              ( ssList(X5)
                              & X4 != X5
                              & ? [X6] :
                                  ( ssList(X6)
                                  & tl(X4) = X6
                                  & app(X3,X6) = X5
                                  & neq(nil,X4) ) )
                          | ? [X7] :
                              ( ssItem(X7)
                              & ? [X8] :
                                  ( ssList(X8)
                                  & cons(X7,nil) = X1
                                  & app(cons(X7,nil),X8) = X2 ) ) )
                        & ( ~ neq(X2,nil)
                          | neq(X4,nil) ) ) ) ) ) ) ),
    inference(assume_negation,[status(cth)],[co1]) ).

fof(c_0_14,negated_conjecture,
    ! [X13,X14,X15,X16] :
      ( ssList(esk48_0)
      & ssList(esk49_0)
      & ssList(esk50_0)
      & ssList(esk51_0)
      & esk49_0 = esk51_0
      & esk48_0 = esk50_0
      & ( neq(esk49_0,nil)
        | neq(esk49_0,nil) )
      & ( ~ neq(esk51_0,nil)
        | neq(esk49_0,nil) )
      & ( neq(esk49_0,nil)
        | ~ ssList(X13)
        | esk51_0 = X13
        | ~ ssList(X14)
        | tl(esk51_0) != X14
        | app(esk50_0,X14) != X13
        | ~ neq(nil,esk51_0) )
      & ( ~ neq(esk51_0,nil)
        | ~ ssList(X13)
        | esk51_0 = X13
        | ~ ssList(X14)
        | tl(esk51_0) != X14
        | app(esk50_0,X14) != X13
        | ~ neq(nil,esk51_0) )
      & ( neq(esk49_0,nil)
        | ~ ssItem(X15)
        | ~ ssList(X16)
        | cons(X15,nil) != esk48_0
        | app(cons(X15,nil),X16) != esk49_0 )
      & ( ~ neq(esk51_0,nil)
        | ~ ssItem(X15)
        | ~ ssList(X16)
        | cons(X15,nil) != esk48_0
        | app(cons(X15,nil),X16) != esk49_0 ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(fof_simplification,[status(thm)],[c_0_13])])])])])])])]) ).

cnf(c_0_15,negated_conjecture,
    ( neq(esk49_0,nil)
    | neq(esk49_0,nil) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_16,negated_conjecture,
    neq(esk49_0,nil),
    inference(cn,[status(thm)],[c_0_15]) ).

cnf(c_0_17,negated_conjecture,
    esk49_0 = esk51_0,
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_18,negated_conjecture,
    ( esk51_0 = X2
    | ~ neq(nil,esk51_0)
    | app(esk50_0,X1) != X2
    | tl(esk51_0) != X1
    | ~ ssList(X1)
    | ~ ssList(X2)
    | ~ neq(esk51_0,nil) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_19,negated_conjecture,
    esk48_0 = esk50_0,
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_20,negated_conjecture,
    neq(esk51_0,nil),
    inference(rw,[status(thm)],[c_0_16,c_0_17]) ).

cnf(c_0_21,negated_conjecture,
    ( esk51_0 = X1
    | app(esk48_0,X2) != X1
    | tl(esk51_0) != X2
    | ~ ssList(X1)
    | ~ ssList(X2)
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_18,c_0_19]),c_0_20])]) ).

fof(c_0_22,plain,
    ! [X3,X4] :
      ( ~ ssList(X3)
      | ~ ssList(X4)
      | ssList(app(X3,X4)) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax26])])])])]) ).

cnf(c_0_23,negated_conjecture,
    ( app(esk48_0,X1) = esk51_0
    | tl(esk51_0) != X1
    | ~ ssList(app(esk48_0,X1))
    | ~ ssList(X1)
    | ~ neq(nil,esk51_0) ),
    inference(er,[status(thm)],[c_0_21]) ).

cnf(c_0_24,plain,
    ( ssList(app(X1,X2))
    | ~ ssList(X2)
    | ~ ssList(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_22]) ).

cnf(c_0_25,negated_conjecture,
    ssList(esk48_0),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

fof(c_0_26,plain,
    ! [X4,X5,X6] :
      ( ~ ssList(X4)
      | ~ ssList(X5)
      | ~ ssList(X6)
      | app(X6,X5) != app(X4,X5)
      | X6 = X4 ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax79])])])])]) ).

fof(c_0_27,plain,
    ! [X2] :
      ( ~ ssList(X2)
      | app(nil,X2) = X2 ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax28])]) ).

fof(c_0_28,plain,
    ! [X3,X4] :
      ( ~ ssList(X3)
      | ~ ssList(X4)
      | nil = X3
      | tl(app(X3,X4)) = app(tl(X3),X4) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax86])])])])]) ).

cnf(c_0_29,negated_conjecture,
    ( app(esk48_0,X1) = esk51_0
    | tl(esk51_0) != X1
    | ~ ssList(X1)
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_24]),c_0_25])]) ).

cnf(c_0_30,plain,
    ( X1 = X2
    | app(X1,X3) != app(X2,X3)
    | ~ ssList(X1)
    | ~ ssList(X3)
    | ~ ssList(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_26]) ).

cnf(c_0_31,plain,
    ( app(nil,X1) = X1
    | ~ ssList(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_32,plain,
    ssList(nil),
    inference(split_conjunct,[status(thm)],[ax17]) ).

cnf(c_0_33,plain,
    ( tl(app(X1,X2)) = app(tl(X1),X2)
    | nil = X1
    | ~ ssList(X2)
    | ~ ssList(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_28]) ).

cnf(c_0_34,negated_conjecture,
    ( app(esk48_0,tl(esk51_0)) = esk51_0
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(er,[status(thm)],[c_0_29]) ).

cnf(c_0_35,plain,
    ( X1 = nil
    | app(X1,X2) != X2
    | ~ ssList(X2)
    | ~ ssList(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_31]),c_0_32])]) ).

cnf(c_0_36,negated_conjecture,
    ( app(tl(esk48_0),tl(esk51_0)) = tl(esk51_0)
    | esk48_0 = nil
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_33,c_0_34]),c_0_25])]) ).

fof(c_0_37,plain,
    ! [X2] :
      ( ~ ssList(X2)
      | nil = X2
      | ssList(tl(X2)) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax24])]) ).

cnf(c_0_38,negated_conjecture,
    ( tl(esk48_0) = nil
    | esk48_0 = nil
    | ~ ssList(tl(esk51_0))
    | ~ ssList(tl(esk48_0))
    | ~ neq(nil,esk51_0) ),
    inference(spm,[status(thm)],[c_0_35,c_0_36]) ).

cnf(c_0_39,plain,
    ( ssList(tl(X1))
    | nil = X1
    | ~ ssList(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_37]) ).

cnf(c_0_40,negated_conjecture,
    ssList(esk49_0),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_41,negated_conjecture,
    ( app(cons(X1,nil),X2) != esk49_0
    | cons(X1,nil) != esk48_0
    | ~ ssList(X2)
    | ~ ssItem(X1)
    | ~ neq(esk51_0,nil) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

fof(c_0_42,plain,
    ! [X3,X5] :
      ( ( ssItem(esk5_1(X3))
        | ~ singletonP(X3)
        | ~ ssList(X3) )
      & ( cons(esk5_1(X3),nil) = X3
        | ~ singletonP(X3)
        | ~ ssList(X3) )
      & ( ~ ssItem(X5)
        | cons(X5,nil) != X3
        | singletonP(X3)
        | ~ ssList(X3) ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax4])])])])])])]) ).

fof(c_0_43,plain,
    ! [X2] :
      ( ~ ssList(X2)
      | nil = X2
      | cons(hd(X2),tl(X2)) = X2 ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax78])]) ).

cnf(c_0_44,negated_conjecture,
    ( tl(esk48_0) = nil
    | esk48_0 = nil
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_38,c_0_39]),c_0_25])]) ).

cnf(c_0_45,negated_conjecture,
    ssList(esk51_0),
    inference(rw,[status(thm)],[c_0_40,c_0_17]) ).

cnf(c_0_46,negated_conjecture,
    ( app(cons(X1,nil),X2) != esk51_0
    | cons(X1,nil) != esk48_0
    | ~ ssList(X2)
    | ~ ssItem(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_41,c_0_17]),c_0_20])]) ).

cnf(c_0_47,plain,
    ( cons(esk5_1(X1),nil) = X1
    | ~ ssList(X1)
    | ~ singletonP(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_42]) ).

cnf(c_0_48,plain,
    ( ssItem(esk5_1(X1))
    | ~ ssList(X1)
    | ~ singletonP(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_42]) ).

cnf(c_0_49,plain,
    ( singletonP(X1)
    | ~ ssList(X1)
    | cons(X2,nil) != X1
    | ~ ssItem(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_42]) ).

cnf(c_0_50,plain,
    ( cons(hd(X1),tl(X1)) = X1
    | nil = X1
    | ~ ssList(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_43]) ).

cnf(c_0_51,negated_conjecture,
    ( tl(esk48_0) = nil
    | esk51_0 = nil
    | esk48_0 = nil
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_44,c_0_39]),c_0_45])]) ).

fof(c_0_52,plain,
    ! [X3,X4] :
      ( ( nil = X4
        | nil != app(X3,X4)
        | ~ ssList(X4)
        | ~ ssList(X3) )
      & ( nil = X3
        | nil != app(X3,X4)
        | ~ ssList(X4)
        | ~ ssList(X3) )
      & ( nil != X4
        | nil != X3
        | nil = app(X3,X4)
        | ~ ssList(X4)
        | ~ ssList(X3) ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax83])])])])])]) ).

cnf(c_0_53,negated_conjecture,
    ( app(X1,X2) != esk51_0
    | X1 != esk48_0
    | ~ singletonP(X1)
    | ~ ssList(X2)
    | ~ ssList(X1) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_46,c_0_47]),c_0_48]) ).

cnf(c_0_54,plain,
    ( singletonP(cons(X1,nil))
    | ~ ssList(cons(X1,nil))
    | ~ ssItem(X1) ),
    inference(er,[status(thm)],[c_0_49]) ).

cnf(c_0_55,negated_conjecture,
    ( cons(hd(esk48_0),nil) = esk48_0
    | esk51_0 = nil
    | esk48_0 = nil
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_50,c_0_51]),c_0_25])]) ).

cnf(c_0_56,plain,
    ( nil = X1
    | ~ ssList(X1)
    | ~ ssList(X2)
    | nil != app(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_52]) ).

cnf(c_0_57,negated_conjecture,
    ( ~ singletonP(esk48_0)
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_53,c_0_34]),c_0_25])]) ).

cnf(c_0_58,negated_conjecture,
    ( esk48_0 = nil
    | esk51_0 = nil
    | singletonP(esk48_0)
    | ~ neq(nil,esk51_0)
    | ~ ssItem(hd(esk48_0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_54,c_0_55]),c_0_25])]) ).

cnf(c_0_59,negated_conjecture,
    ( esk48_0 = nil
    | esk51_0 != nil
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_56,c_0_34]),c_0_25])]) ).

cnf(c_0_60,negated_conjecture,
    ( esk48_0 = nil
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0)
    | ~ ssItem(hd(esk48_0)) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_57,c_0_58]),c_0_59]) ).

fof(c_0_61,plain,
    ! [X2] :
      ( ~ ssList(X2)
      | nil = X2
      | ssItem(hd(X2)) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax22])]) ).

cnf(c_0_62,negated_conjecture,
    ( esk51_0 = nil
    | esk48_0 = nil
    | ~ neq(nil,esk51_0)
    | ~ ssItem(hd(esk48_0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_60,c_0_39]),c_0_45])]) ).

cnf(c_0_63,plain,
    ( ssItem(hd(X1))
    | nil = X1
    | ~ ssList(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_61]) ).

fof(c_0_64,plain,
    ! [X3,X4] :
      ( ( ~ neq(X3,X4)
        | X3 != X4
        | ~ ssList(X4)
        | ~ ssList(X3) )
      & ( X3 = X4
        | neq(X3,X4)
        | ~ ssList(X4)
        | ~ ssList(X3) ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax15])])])])])]) ).

cnf(c_0_65,negated_conjecture,
    ( esk48_0 = nil
    | esk51_0 = nil
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_62,c_0_63]),c_0_25])]) ).

cnf(c_0_66,plain,
    ( neq(X1,X2)
    | X1 = X2
    | ~ ssList(X1)
    | ~ ssList(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_64]) ).

cnf(c_0_67,negated_conjecture,
    ( esk51_0 = nil
    | esk48_0 = nil ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_65,c_0_66]),c_0_45]),c_0_32])]) ).

cnf(c_0_68,negated_conjecture,
    ( app(nil,tl(esk51_0)) = esk51_0
    | esk51_0 = nil
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(spm,[status(thm)],[c_0_34,c_0_67]) ).

cnf(c_0_69,negated_conjecture,
    ( tl(esk51_0) = esk51_0
    | esk51_0 = nil
    | ~ ssList(tl(esk51_0))
    | ~ neq(nil,esk51_0) ),
    inference(spm,[status(thm)],[c_0_31,c_0_68]) ).

fof(c_0_70,plain,
    ! [X3,X4] :
      ( ~ ssList(X3)
      | ~ ssItem(X4)
      | cons(X4,X3) != X3 ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[ax18])])])])]) ).

cnf(c_0_71,negated_conjecture,
    ( tl(esk51_0) = esk51_0
    | esk51_0 = nil
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_69,c_0_39]),c_0_45])]) ).

cnf(c_0_72,plain,
    ( cons(X1,X2) != X2
    | ~ ssItem(X1)
    | ~ ssList(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_70]) ).

cnf(c_0_73,negated_conjecture,
    ( cons(hd(esk51_0),esk51_0) = esk51_0
    | esk51_0 = nil
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_50,c_0_71]),c_0_45])]) ).

cnf(c_0_74,negated_conjecture,
    ( esk51_0 = nil
    | ~ neq(nil,esk51_0)
    | ~ ssItem(hd(esk51_0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_72,c_0_73]),c_0_45])]) ).

cnf(c_0_75,negated_conjecture,
    ( esk51_0 = nil
    | ~ neq(nil,esk51_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_74,c_0_63]),c_0_45])]) ).

cnf(c_0_76,plain,
    ( ~ ssList(X1)
    | ~ ssList(X2)
    | X1 != X2
    | ~ neq(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_64]) ).

cnf(c_0_77,negated_conjecture,
    esk51_0 = nil,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_75,c_0_66]),c_0_45]),c_0_32])]) ).

cnf(c_0_78,plain,
    ( ~ ssList(X1)
    | ~ neq(X1,X1) ),
    inference(er,[status(thm)],[c_0_76]) ).

cnf(c_0_79,negated_conjecture,
    neq(nil,nil),
    inference(rw,[status(thm)],[c_0_20,c_0_77]) ).

cnf(c_0_80,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_78,c_0_79]),c_0_32])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : SWC015+1 : TPTP v8.1.0. Released v2.4.0.
% 0.10/0.13  % Command  : run_ET %s %d
% 0.13/0.34  % Computer : n014.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  : 600
% 0.13/0.34  % DateTime : Sat Jun 11 21:18:53 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.25/1.42  # Running protocol protocol_eprover_63dc1b1eb7d762c2f3686774d32795976f981b97 for 23 seconds:
% 0.25/1.42  # Preprocessing time       : 0.026 s
% 0.25/1.42  
% 0.25/1.42  # Proof found!
% 0.25/1.42  # SZS status Theorem
% 0.25/1.42  # SZS output start CNFRefutation
% See solution above
% 0.25/1.42  # Proof object total steps             : 81
% 0.25/1.42  # Proof object clause steps            : 55
% 0.25/1.42  # Proof object formula steps           : 26
% 0.25/1.42  # Proof object conjectures             : 40
% 0.25/1.42  # Proof object clause conjectures      : 37
% 0.25/1.42  # Proof object formula conjectures     : 3
% 0.25/1.42  # Proof object initial clauses used    : 22
% 0.25/1.42  # Proof object initial formulas used   : 13
% 0.25/1.42  # Proof object generating inferences   : 26
% 0.25/1.42  # Proof object simplifying inferences  : 51
% 0.25/1.42  # Training examples: 0 positive, 0 negative
% 0.25/1.42  # Parsed axioms                        : 96
% 0.25/1.42  # Removed by relevancy pruning/SinE    : 0
% 0.25/1.42  # Initial clauses                      : 202
% 0.25/1.42  # Removed in clause preprocessing      : 2
% 0.25/1.42  # Initial clauses in saturation        : 200
% 0.25/1.42  # Processed clauses                    : 444
% 0.25/1.42  # ...of these trivial                  : 11
% 0.25/1.42  # ...subsumed                          : 103
% 0.25/1.42  # ...remaining for further processing  : 330
% 0.25/1.42  # Other redundant clauses eliminated   : 87
% 0.25/1.42  # Clauses deleted for lack of memory   : 0
% 0.25/1.42  # Backward-subsumed                    : 59
% 0.25/1.42  # Backward-rewritten                   : 37
% 0.25/1.42  # Generated clauses                    : 1896
% 0.25/1.42  # ...of the previous two non-trivial   : 1671
% 0.25/1.42  # Contextual simplify-reflections      : 110
% 0.25/1.42  # Paramodulations                      : 1786
% 0.25/1.42  # Factorizations                       : 0
% 0.25/1.42  # Equation resolutions                 : 110
% 0.25/1.42  # Current number of processed clauses  : 228
% 0.25/1.42  #    Positive orientable unit clauses  : 15
% 0.25/1.42  #    Positive unorientable unit clauses: 0
% 0.25/1.42  #    Negative unit clauses             : 2
% 0.25/1.42  #    Non-unit-clauses                  : 211
% 0.25/1.42  # Current number of unprocessed clauses: 1044
% 0.25/1.42  # ...number of literals in the above   : 7765
% 0.25/1.42  # Current number of archived formulas  : 0
% 0.25/1.42  # Current number of archived clauses   : 96
% 0.25/1.42  # Clause-clause subsumption calls (NU) : 14062
% 0.25/1.42  # Rec. Clause-clause subsumption calls : 3324
% 0.25/1.42  # Non-unit clause-clause subsumptions  : 267
% 0.25/1.42  # Unit Clause-clause subsumption calls : 77
% 0.25/1.42  # Rewrite failures with RHS unbound    : 0
% 0.25/1.42  # BW rewrite match attempts            : 2
% 0.25/1.42  # BW rewrite match successes           : 2
% 0.25/1.42  # Condensation attempts                : 0
% 0.25/1.42  # Condensation successes               : 0
% 0.25/1.42  # Termbank termtop insertions          : 50007
% 0.25/1.42  
% 0.25/1.42  # -------------------------------------------------
% 0.25/1.42  # User time                : 0.087 s
% 0.25/1.42  # System time              : 0.003 s
% 0.25/1.42  # Total time               : 0.090 s
% 0.25/1.42  # Maximum resident set size: 5408 pages
% 0.25/23.42  eprover: CPU time limit exceeded, terminating
% 0.25/23.43  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.43  eprover: No such file or directory
% 0.25/23.44  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.44  eprover: No such file or directory
% 0.25/23.45  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.45  eprover: No such file or directory
% 0.25/23.45  eprover: CPU time limit exceeded, terminating
% 0.25/23.45  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.45  eprover: No such file or directory
% 0.25/23.46  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.46  eprover: No such file or directory
% 0.25/23.46  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.46  eprover: No such file or directory
% 0.25/23.46  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.46  eprover: No such file or directory
% 0.25/23.47  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.47  eprover: No such file or directory
% 0.25/23.47  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.47  eprover: No such file or directory
% 0.25/23.47  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.47  eprover: No such file or directory
% 0.25/23.48  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.48  eprover: No such file or directory
% 0.25/23.48  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.48  eprover: No such file or directory
% 0.25/23.48  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.48  eprover: No such file or directory
% 0.25/23.49  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.49  eprover: No such file or directory
% 0.25/23.49  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.49  eprover: No such file or directory
% 0.25/23.49  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.49  eprover: No such file or directory
% 0.25/23.49  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.25/23.49  eprover: No such file or directory
% 0.25/23.50  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.50  eprover: No such file or directory
% 0.25/23.50  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.50  eprover: No such file or directory
% 0.25/23.51  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.51  eprover: No such file or directory
% 0.25/23.51  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.51  eprover: No such file or directory
% 0.25/23.52  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.25/23.52  eprover: No such file or directory
%------------------------------------------------------------------------------