TSTP Solution File: LCL898+1 by ET---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : ET---2.0
% Problem  : LCL898+1 : TPTP v8.1.0. Released v5.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_ET %s %d

% Computer : n020.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 : Sun Jul 17 10:18:31 EDT 2022

% Result   : Theorem 0.68s 71.85s
% Output   : CNFRefutation 0.68s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   22
%            Number of leaves      :   14
% Syntax   : Number of formulae    :  106 (  75 unt;   0 def)
%            Number of atoms       :  144 (  64 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   72 (  34   ~;  31   |;   2   &)
%                                         (   1 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   2 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   4 con; 0-2 aty)
%            Number of variables   :  216 (  27 sgn  59   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(sos_14,axiom,
    ! [X1] : '+'(X1,'1') = '1',
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_14) ).

fof(sos_02,axiom,
    ! [X1,X2] : '+'(X1,X2) = '+'(X2,X1),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_02) ).

fof(sos_12,axiom,
    ! [X1,X2] : '+'(X1,'==>'(X1,X2)) = '+'(X2,'==>'(X2,X1)),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_12) ).

fof(sos_03,axiom,
    ! [X1] : '+'(X1,'0') = X1,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_03) ).

fof(sos_01,axiom,
    ! [X1,X2,X3] : '+'('+'(X1,X2),X3) = '+'(X1,'+'(X2,X3)),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_01) ).

fof(sos_09,axiom,
    ! [X12,X13,X14] :
      ( '>='(X12,X13)
     => '>='('+'(X12,X14),'+'(X13,X14)) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_09) ).

fof(sos_08,axiom,
    ! [X1] : '>='(X1,'0'),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_08) ).

fof(sos_07,axiom,
    ! [X9,X10,X11] :
      ( '>='('+'(X9,X10),X11)
    <=> '>='(X10,'==>'(X9,X11)) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_07) ).

fof(sos_04,axiom,
    ! [X1] : '>='(X1,X1),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_04) ).

fof(sos_13,axiom,
    ! [X1] : '==>'('==>'(X1,'1'),'1') = X1,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_13) ).

fof(sos_06,axiom,
    ! [X7,X8] :
      ( ( '>='(X7,X8)
        & '>='(X8,X7) )
     => X7 = X8 ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_06) ).

fof(sos_11,axiom,
    ! [X18,X19,X20] :
      ( '>='(X18,X19)
     => '>='('==>'(X20,X18),'==>'(X20,X19)) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_11) ).

fof(sos_10,axiom,
    ! [X15,X16,X17] :
      ( '>='(X15,X16)
     => '>='('==>'(X16,X17),'==>'(X15,X17)) ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',sos_10) ).

fof(goals_15,conjecture,
    ! [X21,X22] : '==>'('==>'(X21,X22),X22) = '==>'('==>'(X22,X21),X21),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p',goals_15) ).

fof(c_0_14,plain,
    ! [X2] : '+'(X2,'1') = '1',
    inference(variable_rename,[status(thm)],[sos_14]) ).

fof(c_0_15,plain,
    ! [X3,X4] : '+'(X3,X4) = '+'(X4,X3),
    inference(variable_rename,[status(thm)],[sos_02]) ).

fof(c_0_16,plain,
    ! [X3,X4] : '+'(X3,'==>'(X3,X4)) = '+'(X4,'==>'(X4,X3)),
    inference(variable_rename,[status(thm)],[sos_12]) ).

cnf(c_0_17,plain,
    '+'(X1,'1') = '1',
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_18,plain,
    '+'(X1,X2) = '+'(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_15]) ).

fof(c_0_19,plain,
    ! [X2] : '+'(X2,'0') = X2,
    inference(variable_rename,[status(thm)],[sos_03]) ).

fof(c_0_20,plain,
    ! [X4,X5,X6] : '+'('+'(X4,X5),X6) = '+'(X4,'+'(X5,X6)),
    inference(variable_rename,[status(thm)],[sos_01]) ).

cnf(c_0_21,plain,
    '+'(X1,'==>'(X1,X2)) = '+'(X2,'==>'(X2,X1)),
    inference(split_conjunct,[status(thm)],[c_0_16]) ).

cnf(c_0_22,plain,
    '+'('1',X1) = '1',
    inference(pm,[status(thm)],[c_0_17,c_0_18]) ).

fof(c_0_23,plain,
    ! [X15,X16,X17] :
      ( ~ '>='(X15,X16)
      | '>='('+'(X15,X17),'+'(X16,X17)) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[sos_09])])])]) ).

cnf(c_0_24,plain,
    '+'(X1,'0') = X1,
    inference(split_conjunct,[status(thm)],[c_0_19]) ).

fof(c_0_25,plain,
    ! [X2] : '>='(X2,'0'),
    inference(variable_rename,[status(thm)],[sos_08]) ).

fof(c_0_26,plain,
    ! [X12,X13,X14,X12,X13,X14] :
      ( ( ~ '>='('+'(X12,X13),X14)
        | '>='(X13,'==>'(X12,X14)) )
      & ( ~ '>='(X13,'==>'(X12,X14))
        | '>='('+'(X12,X13),X14) ) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[sos_07])])])]) ).

fof(c_0_27,plain,
    ! [X2] : '>='(X2,X2),
    inference(variable_rename,[status(thm)],[sos_04]) ).

cnf(c_0_28,plain,
    '+'('+'(X1,X2),X3) = '+'(X1,'+'(X2,X3)),
    inference(split_conjunct,[status(thm)],[c_0_20]) ).

cnf(c_0_29,plain,
    '+'(X1,'==>'(X1,'1')) = '1',
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

cnf(c_0_30,plain,
    ( '>='('+'(X1,X2),'+'(X3,X2))
    | ~ '>='(X1,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_23]) ).

cnf(c_0_31,plain,
    '+'('0',X1) = X1,
    inference(pm,[status(thm)],[c_0_24,c_0_18]) ).

cnf(c_0_32,plain,
    '>='(X1,'0'),
    inference(split_conjunct,[status(thm)],[c_0_25]) ).

cnf(c_0_33,plain,
    ( '>='(X1,'==>'(X2,X3))
    | ~ '>='('+'(X2,X1),X3) ),
    inference(split_conjunct,[status(thm)],[c_0_26]) ).

cnf(c_0_34,plain,
    '>='(X1,X1),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_35,plain,
    '+'(X1,'+'('==>'(X1,'1'),X2)) = '1',
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_28,c_0_29]),c_0_22]) ).

fof(c_0_36,plain,
    ! [X2] : '==>'('==>'(X2,'1'),'1') = X2,
    inference(variable_rename,[status(thm)],[sos_13]) ).

cnf(c_0_37,plain,
    '>='('+'(X1,X2),X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_31]),c_0_32])]) ).

cnf(c_0_38,plain,
    '>='(X1,'==>'(X2,'+'(X2,X1))),
    inference(spm,[status(thm)],[c_0_33,c_0_34]) ).

cnf(c_0_39,plain,
    '+'(X1,'+'(X2,X3)) = '+'(X2,'+'(X1,X3)),
    inference(rw,[status(thm)],[inference(pm,[status(thm)],[c_0_28,c_0_18]),c_0_28]) ).

cnf(c_0_40,plain,
    '+'(X1,'+'(X2,'==>'(X2,'==>'(X1,'1')))) = '1',
    inference(pm,[status(thm)],[c_0_35,c_0_21]) ).

fof(c_0_41,plain,
    ! [X9,X10] :
      ( ~ '>='(X9,X10)
      | ~ '>='(X10,X9)
      | X9 = X10 ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[sos_06])]) ).

fof(c_0_42,plain,
    ! [X21,X22,X23] :
      ( ~ '>='(X21,X22)
      | '>='('==>'(X23,X21),'==>'(X23,X22)) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[sos_11])])])]) ).

cnf(c_0_43,plain,
    ( '>='('1','==>'(X1,X2))
    | ~ '>='('1',X2) ),
    inference(spm,[status(thm)],[c_0_33,c_0_17]) ).

cnf(c_0_44,plain,
    '==>'('==>'(X1,'1'),'1') = X1,
    inference(split_conjunct,[status(thm)],[c_0_36]) ).

fof(c_0_45,plain,
    ! [X18,X19,X20] :
      ( ~ '>='(X18,X19)
      | '>='('==>'(X19,X20),'==>'(X18,X20)) ),
    inference(shift_quantors,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[sos_10])])])]) ).

cnf(c_0_46,plain,
    '>='('+'(X1,X2),X1),
    inference(pm,[status(thm)],[c_0_37,c_0_18]) ).

cnf(c_0_47,plain,
    '>='(X1,'==>'(X2,'==>'(X3,'+'(X3,'+'(X2,X1))))),
    inference(spm,[status(thm)],[c_0_33,c_0_38]) ).

cnf(c_0_48,plain,
    '+'(X1,'+'(X2,'==>'(X1,'==>'(X2,'1')))) = '1',
    inference(spm,[status(thm)],[c_0_39,c_0_40]) ).

cnf(c_0_49,plain,
    ( X1 = X2
    | ~ '>='(X2,X1)
    | ~ '>='(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_41]) ).

cnf(c_0_50,plain,
    ( '>='('==>'(X1,X2),'==>'(X1,X3))
    | ~ '>='(X2,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_42]) ).

cnf(c_0_51,plain,
    ( '>='(X1,'==>'(X2,X3))
    | ~ '>='('+'(X1,X2),X3) ),
    inference(pm,[status(thm)],[c_0_33,c_0_18]) ).

cnf(c_0_52,plain,
    '>='('1',X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_43,c_0_44]),c_0_34])]) ).

cnf(c_0_53,plain,
    ( '>='('==>'(X1,X2),'==>'(X3,X2))
    | ~ '>='(X3,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_45]) ).

cnf(c_0_54,plain,
    '>='('+'(X1,'==>'(X1,X2)),X2),
    inference(pm,[status(thm)],[c_0_46,c_0_21]) ).

cnf(c_0_55,plain,
    '>='('==>'(X1,'==>'(X2,'1')),'==>'(X2,'==>'(X1,'1'))),
    inference(spm,[status(thm)],[c_0_47,c_0_48]) ).

cnf(c_0_56,plain,
    ( '==>'(X1,X2) = '==>'(X1,X3)
    | ~ '>='('==>'(X1,X2),'==>'(X1,X3))
    | ~ '>='(X3,X2) ),
    inference(spm,[status(thm)],[c_0_49,c_0_50]) ).

cnf(c_0_57,plain,
    '>='(X1,'==>'('==>'(X1,'1'),X2)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_51,c_0_29]),c_0_52])]) ).

cnf(c_0_58,plain,
    ( '>='('0','==>'(X1,X2))
    | ~ '>='(X1,X2) ),
    inference(spm,[status(thm)],[c_0_33,c_0_24]) ).

cnf(c_0_59,plain,
    ( '==>'(X1,X2) = '==>'(X3,X2)
    | ~ '>='('==>'(X1,X2),'==>'(X3,X2))
    | ~ '>='(X1,X3) ),
    inference(spm,[status(thm)],[c_0_49,c_0_53]) ).

cnf(c_0_60,plain,
    '>='(X1,'==>'('==>'(X1,X2),X2)),
    inference(spm,[status(thm)],[c_0_51,c_0_54]) ).

cnf(c_0_61,plain,
    '==>'(X1,'==>'(X2,'1')) = '==>'(X2,'==>'(X1,'1')),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_49,c_0_55]),c_0_55])]) ).

cnf(c_0_62,plain,
    ( '==>'('==>'(X1,'1'),X2) = X1
    | ~ '>='(X2,'1') ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_56,c_0_44]),c_0_57])]) ).

cnf(c_0_63,plain,
    ( '==>'(X1,X2) = '0'
    | ~ '>='(X1,X2) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_49,c_0_58]),c_0_32])]) ).

cnf(c_0_64,plain,
    '==>'('==>'('==>'(X1,X2),X2),X2) = '==>'(X1,X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_59,c_0_60]),c_0_60])]) ).

cnf(c_0_65,plain,
    '==>'('==>'(X1,'1'),'==>'(X2,'1')) = '==>'(X2,X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_61,c_0_62]),c_0_34])]) ).

cnf(c_0_66,plain,
    ( '>='('==>'(X1,'1'),X2)
    | ~ '>='('==>'(X2,'1'),X1) ),
    inference(spm,[status(thm)],[c_0_53,c_0_44]) ).

cnf(c_0_67,plain,
    '>='('+'(X1,'+'(X2,X3)),X3),
    inference(spm,[status(thm)],[c_0_37,c_0_28]) ).

cnf(c_0_68,plain,
    ( '+'(X1,'==>'(X1,X2)) = X2
    | ~ '>='(X2,X1) ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_21,c_0_63]),c_0_24]) ).

cnf(c_0_69,plain,
    '==>'(X1,'==>'('==>'(X1,'==>'('==>'(X1,X2),'1')),'1')) = '==>'(X1,X2),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_64,c_0_65]),c_0_61]),c_0_61]) ).

cnf(c_0_70,plain,
    '>='('==>'('==>'(X1,X2),'1'),X1),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_66,c_0_57]),c_0_44]) ).

cnf(c_0_71,plain,
    '>='('+'(X1,X2),'==>'(X3,X2)),
    inference(spm,[status(thm)],[c_0_33,c_0_67]) ).

cnf(c_0_72,plain,
    ( '==>'('==>'(X1,X2),X2) = X1
    | ~ '>='(X2,'1') ),
    inference(spm,[status(thm)],[c_0_64,c_0_62]) ).

cnf(c_0_73,plain,
    '==>'('==>'(X1,'==>'('==>'(X1,X2),'1')),'1') = '+'(X1,'==>'(X1,X2)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_68,c_0_69]),c_0_70])]) ).

cnf(c_0_74,plain,
    ( '0' = X1
    | ~ '>='('0',X1) ),
    inference(spm,[status(thm)],[c_0_49,c_0_32]) ).

cnf(c_0_75,plain,
    '>='(X1,'==>'(X2,'==>'(X3,X2))),
    inference(spm,[status(thm)],[c_0_51,c_0_71]) ).

cnf(c_0_76,plain,
    '==>'('+'(X1,'==>'(X1,X2)),'1') = '==>'(X1,'==>'('==>'(X1,X2),'1')),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_72,c_0_73]),c_0_34])]) ).

cnf(c_0_77,plain,
    '==>'(X1,'==>'(X2,X1)) = '0',
    inference(spm,[status(thm)],[c_0_74,c_0_75]) ).

cnf(c_0_78,plain,
    '==>'('==>'('==>'(X1,X2),X2),'1') = '+'('==>'(X2,'1'),'==>'(X1,X2)),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_73,c_0_65]),c_0_65]) ).

cnf(c_0_79,plain,
    '==>'('==>'(X1,X2),'+'('==>'(X2,'1'),'==>'(X1,X2))) = '==>'(X2,'1'),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_76,c_0_64]),c_0_18]),c_0_21]),c_0_77]),c_0_24]),c_0_61]),c_0_78]) ).

cnf(c_0_80,plain,
    '==>'('==>'(X1,X2),'+'(X1,'==>'(X1,X2))) = X1,
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_79,c_0_65]),c_0_44]),c_0_44]) ).

cnf(c_0_81,plain,
    '==>'(X1,'+'(X1,'==>'(X1,X2))) = '==>'(X1,X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_56,c_0_38]),c_0_54])]) ).

cnf(c_0_82,plain,
    '>='(X1,'==>'(X2,'0')),
    inference(spm,[status(thm)],[c_0_33,c_0_32]) ).

cnf(c_0_83,plain,
    '==>'('==>'(X1,X2),'+'(X2,'==>'(X2,X1))) = X1,
    inference(pm,[status(thm)],[c_0_80,c_0_21]) ).

cnf(c_0_84,plain,
    '==>'(X1,'+'(X2,'==>'(X2,X1))) = '==>'(X1,X2),
    inference(pm,[status(thm)],[c_0_81,c_0_21]) ).

cnf(c_0_85,plain,
    ( '==>'(X1,X2) = '0'
    | ~ '>='('==>'(X3,X1),X2) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_56,c_0_77]),c_0_32])]) ).

cnf(c_0_86,plain,
    '==>'(X1,'0') = '0',
    inference(spm,[status(thm)],[c_0_74,c_0_82]) ).

cnf(c_0_87,plain,
    ( '>='('+'(X1,X2),X3)
    | ~ '>='(X2,'==>'(X1,X3)) ),
    inference(split_conjunct,[status(thm)],[c_0_26]) ).

cnf(c_0_88,plain,
    '+'(X1,'==>'(X2,'==>'('==>'(X2,X1),'1'))) = '==>'('==>'(X1,X2),'1'),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_78,c_0_83]),c_0_84]),c_0_76]),c_0_18]) ).

cnf(c_0_89,plain,
    '==>'(X1,'==>'('==>'('==>'(X2,X1),X3),X3)) = '0',
    inference(spm,[status(thm)],[c_0_85,c_0_60]) ).

cnf(c_0_90,plain,
    '==>'('0',X1) = X1,
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_21,c_0_86]),c_0_24]),c_0_31]) ).

cnf(c_0_91,plain,
    ( '>='(X1,X2)
    | ~ '>='('0','==>'(X1,X2)) ),
    inference(spm,[status(thm)],[c_0_87,c_0_24]) ).

cnf(c_0_92,plain,
    '+'('==>'(X1,'1'),'==>'('==>'(X1,X2),X2)) = '==>'('==>'(X2,X1),'1'),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_88,c_0_65]),c_0_65]),c_0_65]) ).

cnf(c_0_93,plain,
    '==>'(X1,'==>'('==>'(X1,X2),X2)) = '0',
    inference(spm,[status(thm)],[c_0_89,c_0_90]) ).

cnf(c_0_94,plain,
    ( '>='(X1,'==>'(X2,X3))
    | ~ '>='(X2,'==>'(X1,X3)) ),
    inference(spm,[status(thm)],[c_0_51,c_0_87]) ).

cnf(c_0_95,plain,
    '>='(X1,'==>'('==>'('==>'(X2,X1),X3),X3)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_91,c_0_89]),c_0_32])]) ).

fof(c_0_96,negated_conjecture,
    ~ ! [X21,X22] : '==>'('==>'(X21,X22),X22) = '==>'('==>'(X22,X21),X21),
    inference(assume_negation,[status(cth)],[goals_15]) ).

cnf(c_0_97,plain,
    ( '==>'('==>'(X1,X2),'1') = X1
    | ~ '>='(X1,'==>'('==>'(X1,X2),'1')) ),
    inference(spm,[status(thm)],[c_0_49,c_0_70]) ).

cnf(c_0_98,plain,
    '==>'('==>'('==>'('==>'(X1,X2),X2),X1),'1') = '==>'('==>'(X2,X1),'1'),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_92,c_0_93]),c_0_90]),c_0_92]) ).

cnf(c_0_99,plain,
    '>='('==>'('==>'(X1,X2),X3),'==>'(X2,X3)),
    inference(spm,[status(thm)],[c_0_94,c_0_95]) ).

fof(c_0_100,negated_conjecture,
    '==>'('==>'(esk1_0,esk2_0),esk2_0) != '==>'('==>'(esk2_0,esk1_0),esk1_0),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_96])])]) ).

cnf(c_0_101,plain,
    '==>'('==>'('==>'('==>'(X1,X2),X2),X1),X1) = '==>'('==>'(X1,X2),X2),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_83,c_0_93]),c_0_24]) ).

cnf(c_0_102,plain,
    '==>'('==>'('==>'(X1,X2),X2),X1) = '==>'(X2,X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_97,c_0_98]),c_0_44]),c_0_44]),c_0_99])]) ).

cnf(c_0_103,negated_conjecture,
    '==>'('==>'(esk1_0,esk2_0),esk2_0) != '==>'('==>'(esk2_0,esk1_0),esk1_0),
    inference(split_conjunct,[status(thm)],[c_0_100]) ).

cnf(c_0_104,plain,
    '==>'('==>'(X1,X2),X2) = '==>'('==>'(X2,X1),X1),
    inference(rw,[status(thm)],[c_0_101,c_0_102]) ).

cnf(c_0_105,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_103,c_0_104])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : LCL898+1 : TPTP v8.1.0. Released v5.5.0.
% 0.13/0.14  % Command  : run_ET %s %d
% 0.13/0.35  % Computer : n020.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Sat Jul  2 13:36:30 EDT 2022
% 0.20/0.35  % CPUTime  : 
% 0.38/23.42  eprover: CPU time limit exceeded, terminating
% 0.38/23.43  eprover: CPU time limit exceeded, terminating
% 0.38/23.43  eprover: CPU time limit exceeded, terminating
% 0.38/23.45  eprover: CPU time limit exceeded, terminating
% 0.52/46.44  eprover: CPU time limit exceeded, terminating
% 0.52/46.44  eprover: CPU time limit exceeded, terminating
% 0.52/46.46  eprover: CPU time limit exceeded, terminating
% 0.52/46.48  eprover: CPU time limit exceeded, terminating
% 0.67/69.46  eprover: CPU time limit exceeded, terminating
% 0.67/69.47  eprover: CPU time limit exceeded, terminating
% 0.67/69.49  eprover: CPU time limit exceeded, terminating
% 0.67/69.49  eprover: CPU time limit exceeded, terminating
% 0.68/71.85  # Running protocol protocol_eprover_63dc1b1eb7d762c2f3686774d32795976f981b97 for 23 seconds:
% 0.68/71.85  
% 0.68/71.85  # Failure: Resource limit exceeded (time)
% 0.68/71.85  # OLD status Res
% 0.68/71.85  # Preprocessing time       : 0.014 s
% 0.68/71.85  # Running protocol protocol_eprover_f6eb5f7f05126ea361481ae651a4823314e3d740 for 23 seconds:
% 0.68/71.85  
% 0.68/71.85  # Failure: Resource limit exceeded (time)
% 0.68/71.85  # OLD status Res
% 0.68/71.85  # SinE strategy is GSinE(CountFormulas,hypos,1.5,,02,20000,1.0)
% 0.68/71.85  # Preprocessing time       : 0.014 s
% 0.68/71.85  # Running protocol protocol_eprover_a172c605141d0894bf6fdc293a5220c6c2a32117 for 23 seconds:
% 0.68/71.85  
% 0.68/71.85  # Failure: Resource limit exceeded (time)
% 0.68/71.85  # OLD status Res
% 0.68/71.85  # Preprocessing time       : 0.008 s
% 0.68/71.85  # Running protocol protocol_eprover_f8b0f932169414d689b89e2a8b18d4600533b975 for 23 seconds:
% 0.68/71.85  # Preprocessing time       : 0.007 s
% 0.68/71.85  
% 0.68/71.85  # Proof found!
% 0.68/71.85  # SZS status Theorem
% 0.68/71.85  # SZS output start CNFRefutation
% See solution above
% 0.68/71.85  # Proof object total steps             : 106
% 0.68/71.85  # Proof object clause steps            : 77
% 0.68/71.85  # Proof object formula steps           : 29
% 0.68/71.85  # Proof object conjectures             : 5
% 0.68/71.85  # Proof object clause conjectures      : 2
% 0.68/71.85  # Proof object formula conjectures     : 3
% 0.68/71.85  # Proof object initial clauses used    : 15
% 0.68/71.85  # Proof object initial formulas used   : 14
% 0.68/71.85  # Proof object generating inferences   : 60
% 0.68/71.85  # Proof object simplifying inferences  : 58
% 0.68/71.85  # Training examples: 0 positive, 0 negative
% 0.68/71.85  # Parsed axioms                        : 15
% 0.68/71.85  # Removed by relevancy pruning/SinE    : 0
% 0.68/71.85  # Initial clauses                      : 16
% 0.68/71.85  # Removed in clause preprocessing      : 0
% 0.68/71.85  # Initial clauses in saturation        : 16
% 0.68/71.85  # Processed clauses                    : 10400
% 0.68/71.85  # ...of these trivial                  : 1089
% 0.68/71.85  # ...subsumed                          : 8407
% 0.68/71.85  # ...remaining for further processing  : 904
% 0.68/71.85  # Other redundant clauses eliminated   : 0
% 0.68/71.85  # Clauses deleted for lack of memory   : 72790
% 0.68/71.85  # Backward-subsumed                    : 42
% 0.68/71.85  # Backward-rewritten                   : 68
% 0.68/71.85  # Generated clauses                    : 353041
% 0.68/71.85  # ...of the previous two non-trivial   : 207539
% 0.68/71.85  # Contextual simplify-reflections      : 1076
% 0.68/71.85  # Paramodulations                      : 353041
% 0.68/71.85  # Factorizations                       : 0
% 0.68/71.85  # Equation resolutions                 : 0
% 0.68/71.85  # Current number of processed clauses  : 794
% 0.68/71.85  #    Positive orientable unit clauses  : 382
% 0.68/71.85  #    Positive unorientable unit clauses: 49
% 0.68/71.85  #    Negative unit clauses             : 6
% 0.68/71.85  #    Non-unit-clauses                  : 357
% 0.68/71.85  # Current number of unprocessed clauses: 110786
% 0.68/71.85  # ...number of literals in the above   : 187529
% 0.68/71.85  # Current number of archived formulas  : 0
% 0.68/71.85  # Current number of archived clauses   : 110
% 0.68/71.85  # Clause-clause subsumption calls (NU) : 40781
% 0.68/71.85  # Rec. Clause-clause subsumption calls : 37638
% 0.68/71.85  # Non-unit clause-clause subsumptions  : 5895
% 0.68/71.85  # Unit Clause-clause subsumption calls : 1352
% 0.68/71.85  # Rewrite failures with RHS unbound    : 0
% 0.68/71.85  # BW rewrite match attempts            : 6347
% 0.68/71.85  # BW rewrite match successes           : 508
% 0.68/71.85  # Condensation attempts                : 0
% 0.68/71.85  # Condensation successes               : 0
% 0.68/71.85  # Termbank termtop insertions          : 4190900
% 0.68/71.85  
% 0.68/71.85  # -------------------------------------------------
% 0.68/71.85  # User time                : 2.097 s
% 0.68/71.85  # System time              : 0.090 s
% 0.68/71.85  # Total time               : 2.187 s
% 0.68/71.85  # Maximum resident set size: 131296 pages
% 0.68/92.48  eprover: CPU time limit exceeded, terminating
% 0.68/92.50  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.50  eprover: No such file or directory
% 0.68/92.50  eprover: CPU time limit exceeded, terminating
% 0.68/92.50  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.50  eprover: No such file or directory
% 0.68/92.51  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.51  eprover: No such file or directory
% 0.68/92.52  eprover: CPU time limit exceeded, terminating
% 0.68/92.52  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.52  eprover: No such file or directory
% 0.68/92.52  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.52  eprover: No such file or directory
% 0.68/92.52  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.52  eprover: No such file or directory
% 0.68/92.52  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.52  eprover: No such file or directory
% 0.68/92.53  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.53  eprover: No such file or directory
% 0.68/92.53  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.53  eprover: No such file or directory
% 0.68/92.53  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.53  eprover: No such file or directory
% 0.68/92.53  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.53  eprover: No such file or directory
% 0.68/92.53  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.53  eprover: No such file or directory
% 0.68/92.53  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.53  eprover: No such file or directory
% 0.68/92.54  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.54  eprover: No such file or directory
% 0.68/92.54  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.54  eprover: No such file or directory
% 0.68/92.54  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p
% 0.68/92.54  eprover: No such file or directory
% 0.68/92.54  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.54  eprover: No such file or directory
% 0.68/92.55  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.55  eprover: No such file or directory
% 0.68/92.55  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.55  eprover: No such file or directory
% 0.68/92.55  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.55  eprover: No such file or directory
% 0.68/92.55  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.55  eprover: No such file or directory
% 0.68/92.56  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.56  eprover: No such file or directory
% 0.68/92.56  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.56  eprover: No such file or directory
% 0.68/92.57  eprover: Cannot stat file /export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in
% 0.68/92.57  eprover: No such file or directory
%------------------------------------------------------------------------------