TSTP Solution File: LCL493+1 by ET---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : ET---2.0
% Problem  : LCL493+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_ET %s %d

% Computer : n016.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 10:11:31 EDT 2022

% Result   : Theorem 0.22s 1.40s
% Output   : CNFRefutation 0.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :   26
% Syntax   : Number of formulae    :  103 (  52 unt;   0 def)
%            Number of atoms       :  187 (  30 equ)
%            Maximal formula atoms :   10 (   1 avg)
%            Number of connectives :  142 (  58   ~;  57   |;  12   &)
%                                         (   8 <=>;   7  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of predicates  :   16 (  14 usr;  14 prp; 0-2 aty)
%            Number of functors    :   22 (  22 usr;  17 con; 0-2 aty)
%            Number of variables   :  146 (   7 sgn  54   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(op_implies_or,axiom,
    ( op_implies_or
   => ! [X1,X2] : implies(X1,X2) = or(not(X1),X2) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+1.ax',op_implies_or) ).

fof(op_and,axiom,
    ( op_and
   => ! [X1,X2] : and(X1,X2) = not(or(not(X1),not(X2))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+1.ax',op_and) ).

fof(principia_op_implies_or,axiom,
    op_implies_or,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_op_implies_or) ).

fof(op_implies_and,axiom,
    ( op_implies_and
   => ! [X1,X2] : implies(X1,X2) = not(and(X1,not(X2))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+1.ax',op_implies_and) ).

fof(principia_op_and,axiom,
    op_and,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_op_and) ).

fof(op_or,axiom,
    ( op_or
   => ! [X1,X2] : or(X1,X2) = not(and(not(X1),not(X2))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+1.ax',op_or) ).

fof(hilbert_op_implies_and,axiom,
    op_implies_and,
    file('/export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p.mepo_128.in',hilbert_op_implies_and) ).

fof(modus_ponens,axiom,
    ( modus_ponens
  <=> ! [X1,X2] :
        ( ( is_a_theorem(X1)
          & is_a_theorem(implies(X1,X2)) )
       => is_a_theorem(X2) ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',modus_ponens) ).

fof(r3,axiom,
    ( r3
  <=> ! [X4,X5] : is_a_theorem(implies(or(X4,X5),or(X5,X4))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',r3) ).

fof(hilbert_op_or,axiom,
    op_or,
    file('/export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p.mepo_128.in',hilbert_op_or) ).

fof(r4,axiom,
    ( r4
  <=> ! [X4,X5,X6] : is_a_theorem(implies(or(X4,or(X5,X6)),or(X5,or(X4,X6)))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',r4) ).

fof(r2,axiom,
    ( r2
  <=> ! [X4,X5] : is_a_theorem(implies(X5,or(X4,X5))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',r2) ).

fof(r5,axiom,
    ( r5
  <=> ! [X4,X5,X6] : is_a_theorem(implies(implies(X5,X6),implies(or(X4,X5),or(X4,X6)))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',r5) ).

fof(principia_modus_ponens,axiom,
    modus_ponens,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_modus_ponens) ).

fof(principia_r3,axiom,
    r3,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_r3) ).

fof(r1,axiom,
    ( r1
  <=> ! [X4] : is_a_theorem(implies(or(X4,X4),X4)) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',r1) ).

fof(principia_r4,axiom,
    r4,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_r4) ).

fof(principia_r2,axiom,
    r2,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_r2) ).

fof(principia_r5,axiom,
    r5,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_r5) ).

fof(substitution_of_equivalents,axiom,
    ( substitution_of_equivalents
  <=> ! [X1,X2] :
        ( is_a_theorem(equiv(X1,X2))
       => X1 = X2 ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',substitution_of_equivalents) ).

fof(op_equiv,axiom,
    ( op_equiv
   => ! [X1,X2] : equiv(X1,X2) = and(implies(X1,X2),implies(X2,X1)) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+1.ax',op_equiv) ).

fof(principia_r1,axiom,
    r1,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_r1) ).

fof(substitution_of_equivalents_001,axiom,
    substitution_of_equivalents,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',substitution_of_equivalents) ).

fof(principia_op_equiv,axiom,
    op_equiv,
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+4.ax',principia_op_equiv) ).

fof(hilbert_equivalence_1,conjecture,
    equivalence_1,
    file('/export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p.mepo_128.in',hilbert_equivalence_1) ).

fof(equivalence_1,axiom,
    ( equivalence_1
  <=> ! [X1,X2] : is_a_theorem(implies(equiv(X1,X2),implies(X1,X2))) ),
    file('/export/starexec/sandbox/benchmark/Axioms/LCL006+0.ax',equivalence_1) ).

fof(c_0_26,plain,
    ! [X3,X4] :
      ( ~ op_implies_or
      | implies(X3,X4) = or(not(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)],[op_implies_or])])])])]) ).

fof(c_0_27,plain,
    ! [X3,X4] :
      ( ~ op_and
      | and(X3,X4) = not(or(not(X3),not(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)],[op_and])])])])]) ).

cnf(c_0_28,plain,
    ( implies(X1,X2) = or(not(X1),X2)
    | ~ op_implies_or ),
    inference(split_conjunct,[status(thm)],[c_0_26]) ).

cnf(c_0_29,plain,
    op_implies_or,
    inference(split_conjunct,[status(thm)],[principia_op_implies_or]) ).

fof(c_0_30,plain,
    ! [X3,X4] :
      ( ~ op_implies_and
      | implies(X3,X4) = not(and(X3,not(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)],[op_implies_and])])])])]) ).

cnf(c_0_31,plain,
    ( and(X1,X2) = not(or(not(X1),not(X2)))
    | ~ op_and ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_32,plain,
    or(not(X1),X2) = implies(X1,X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_28,c_0_29])]) ).

cnf(c_0_33,plain,
    op_and,
    inference(split_conjunct,[status(thm)],[principia_op_and]) ).

fof(c_0_34,plain,
    ! [X3,X4] :
      ( ~ op_or
      | or(X3,X4) = not(and(not(X3),not(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)],[op_or])])])])]) ).

cnf(c_0_35,plain,
    ( implies(X1,X2) = not(and(X1,not(X2)))
    | ~ op_implies_and ),
    inference(split_conjunct,[status(thm)],[c_0_30]) ).

cnf(c_0_36,plain,
    and(X1,X2) = not(implies(X1,not(X2))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_31,c_0_32]),c_0_33])]) ).

cnf(c_0_37,plain,
    op_implies_and,
    inference(split_conjunct,[status(thm)],[hilbert_op_implies_and]) ).

fof(c_0_38,plain,
    ! [X3,X4] :
      ( ( ~ modus_ponens
        | ~ is_a_theorem(X3)
        | ~ is_a_theorem(implies(X3,X4))
        | is_a_theorem(X4) )
      & ( is_a_theorem(esk1_0)
        | modus_ponens )
      & ( is_a_theorem(implies(esk1_0,esk2_0))
        | modus_ponens )
      & ( ~ is_a_theorem(esk2_0)
        | modus_ponens ) ),
    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)],[modus_ponens])])])])])])]) ).

fof(c_0_39,plain,
    ! [X6,X7] :
      ( ( ~ r3
        | is_a_theorem(implies(or(X6,X7),or(X7,X6))) )
      & ( ~ is_a_theorem(implies(or(esk48_0,esk49_0),or(esk49_0,esk48_0)))
        | r3 ) ),
    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)],[r3])])])])])]) ).

cnf(c_0_40,plain,
    ( or(X1,X2) = not(and(not(X1),not(X2)))
    | ~ op_or ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_41,plain,
    not(not(implies(X1,not(not(X2))))) = implies(X1,X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_35,c_0_36]),c_0_37])]) ).

cnf(c_0_42,plain,
    op_or,
    inference(split_conjunct,[status(thm)],[hilbert_op_or]) ).

fof(c_0_43,plain,
    ! [X7,X8,X9] :
      ( ( ~ r4
        | is_a_theorem(implies(or(X7,or(X8,X9)),or(X8,or(X7,X9)))) )
      & ( ~ is_a_theorem(implies(or(esk50_0,or(esk51_0,esk52_0)),or(esk51_0,or(esk50_0,esk52_0))))
        | r4 ) ),
    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)],[r4])])])])])]) ).

fof(c_0_44,plain,
    ! [X6,X7] :
      ( ( ~ r2
        | is_a_theorem(implies(X7,or(X6,X7))) )
      & ( ~ is_a_theorem(implies(esk47_0,or(esk46_0,esk47_0)))
        | r2 ) ),
    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)],[r2])])])])])]) ).

fof(c_0_45,plain,
    ! [X7,X8,X9] :
      ( ( ~ r5
        | is_a_theorem(implies(implies(X8,X9),implies(or(X7,X8),or(X7,X9)))) )
      & ( ~ is_a_theorem(implies(implies(esk54_0,esk55_0),implies(or(esk53_0,esk54_0),or(esk53_0,esk55_0))))
        | r5 ) ),
    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)],[r5])])])])])]) ).

cnf(c_0_46,plain,
    ( is_a_theorem(X1)
    | ~ is_a_theorem(implies(X2,X1))
    | ~ is_a_theorem(X2)
    | ~ modus_ponens ),
    inference(split_conjunct,[status(thm)],[c_0_38]) ).

cnf(c_0_47,plain,
    modus_ponens,
    inference(split_conjunct,[status(thm)],[principia_modus_ponens]) ).

cnf(c_0_48,plain,
    ( is_a_theorem(implies(or(X1,X2),or(X2,X1)))
    | ~ r3 ),
    inference(split_conjunct,[status(thm)],[c_0_39]) ).

cnf(c_0_49,plain,
    or(X1,X2) = implies(not(X1),X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_40,c_0_36]),c_0_41]),c_0_42])]) ).

cnf(c_0_50,plain,
    r3,
    inference(split_conjunct,[status(thm)],[principia_r3]) ).

fof(c_0_51,plain,
    ! [X5] :
      ( ( ~ r1
        | is_a_theorem(implies(or(X5,X5),X5)) )
      & ( ~ is_a_theorem(implies(or(esk45_0,esk45_0),esk45_0))
        | r1 ) ),
    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)],[r1])])])])])]) ).

cnf(c_0_52,plain,
    ( is_a_theorem(implies(or(X1,or(X2,X3)),or(X2,or(X1,X3))))
    | ~ r4 ),
    inference(split_conjunct,[status(thm)],[c_0_43]) ).

cnf(c_0_53,plain,
    r4,
    inference(split_conjunct,[status(thm)],[principia_r4]) ).

cnf(c_0_54,plain,
    ( is_a_theorem(implies(X1,or(X2,X1)))
    | ~ r2 ),
    inference(split_conjunct,[status(thm)],[c_0_44]) ).

cnf(c_0_55,plain,
    r2,
    inference(split_conjunct,[status(thm)],[principia_r2]) ).

cnf(c_0_56,plain,
    ( is_a_theorem(implies(implies(X1,X2),implies(or(X3,X1),or(X3,X2))))
    | ~ r5 ),
    inference(split_conjunct,[status(thm)],[c_0_45]) ).

cnf(c_0_57,plain,
    r5,
    inference(split_conjunct,[status(thm)],[principia_r5]) ).

fof(c_0_58,plain,
    ! [X3,X4] :
      ( ( ~ substitution_of_equivalents
        | ~ is_a_theorem(equiv(X3,X4))
        | X3 = X4 )
      & ( is_a_theorem(equiv(esk3_0,esk4_0))
        | substitution_of_equivalents )
      & ( esk3_0 != esk4_0
        | substitution_of_equivalents ) ),
    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)],[substitution_of_equivalents])])])])])])]) ).

fof(c_0_59,plain,
    ! [X3,X4] :
      ( ~ op_equiv
      | equiv(X3,X4) = and(implies(X3,X4),implies(X4,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)],[op_equiv])])])])]) ).

cnf(c_0_60,plain,
    ( is_a_theorem(X1)
    | ~ is_a_theorem(implies(X2,X1))
    | ~ is_a_theorem(X2) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_46,c_0_47])]) ).

cnf(c_0_61,plain,
    is_a_theorem(implies(implies(not(X1),X2),implies(not(X2),X1))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_48,c_0_49]),c_0_49]),c_0_50])]) ).

cnf(c_0_62,plain,
    ( is_a_theorem(implies(or(X1,X1),X1))
    | ~ r1 ),
    inference(split_conjunct,[status(thm)],[c_0_51]) ).

cnf(c_0_63,plain,
    r1,
    inference(split_conjunct,[status(thm)],[principia_r1]) ).

cnf(c_0_64,plain,
    is_a_theorem(implies(implies(not(X1),implies(not(X2),X3)),implies(not(X2),implies(not(X1),X3)))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_52,c_0_49]),c_0_49]),c_0_49]),c_0_49]),c_0_53])]) ).

cnf(c_0_65,plain,
    is_a_theorem(implies(X1,implies(not(X2),X1))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_54,c_0_49]),c_0_55])]) ).

cnf(c_0_66,plain,
    implies(not(not(X1)),X2) = implies(X1,X2),
    inference(rw,[status(thm)],[c_0_32,c_0_49]) ).

cnf(c_0_67,plain,
    is_a_theorem(implies(implies(X1,X2),implies(implies(not(X3),X1),implies(not(X3),X2)))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_56,c_0_49]),c_0_49]),c_0_57])]) ).

cnf(c_0_68,plain,
    ( X1 = X2
    | ~ is_a_theorem(equiv(X1,X2))
    | ~ substitution_of_equivalents ),
    inference(split_conjunct,[status(thm)],[c_0_58]) ).

cnf(c_0_69,plain,
    substitution_of_equivalents,
    inference(split_conjunct,[status(thm)],[substitution_of_equivalents]) ).

cnf(c_0_70,plain,
    ( equiv(X1,X2) = and(implies(X1,X2),implies(X2,X1))
    | ~ op_equiv ),
    inference(split_conjunct,[status(thm)],[c_0_59]) ).

cnf(c_0_71,plain,
    op_equiv,
    inference(split_conjunct,[status(thm)],[principia_op_equiv]) ).

cnf(c_0_72,plain,
    ( is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(implies(not(X2),X1)) ),
    inference(spm,[status(thm)],[c_0_60,c_0_61]) ).

cnf(c_0_73,plain,
    is_a_theorem(implies(implies(not(X1),X1),X1)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_62,c_0_49]),c_0_63])]) ).

cnf(c_0_74,plain,
    ( is_a_theorem(implies(not(X1),implies(not(X2),X3)))
    | ~ is_a_theorem(implies(not(X2),implies(not(X1),X3))) ),
    inference(spm,[status(thm)],[c_0_60,c_0_64]) ).

cnf(c_0_75,plain,
    is_a_theorem(implies(X1,implies(X2,X1))),
    inference(spm,[status(thm)],[c_0_65,c_0_66]) ).

cnf(c_0_76,plain,
    ( is_a_theorem(implies(implies(not(X1),X2),implies(not(X1),X3)))
    | ~ is_a_theorem(implies(X2,X3)) ),
    inference(spm,[status(thm)],[c_0_60,c_0_67]) ).

cnf(c_0_77,plain,
    ( X1 = X2
    | ~ is_a_theorem(equiv(X1,X2)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_68,c_0_69])]) ).

cnf(c_0_78,plain,
    equiv(X1,X2) = not(implies(implies(X1,X2),not(implies(X2,X1)))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_70,c_0_36]),c_0_71])]) ).

cnf(c_0_79,plain,
    ( is_a_theorem(implies(not(X1),not(X2)))
    | ~ is_a_theorem(implies(X2,X1)) ),
    inference(spm,[status(thm)],[c_0_72,c_0_66]) ).

cnf(c_0_80,plain,
    is_a_theorem(implies(implies(X1,not(X1)),not(X1))),
    inference(spm,[status(thm)],[c_0_73,c_0_66]) ).

cnf(c_0_81,plain,
    ( is_a_theorem(X1)
    | ~ is_a_theorem(implies(not(X1),X1)) ),
    inference(spm,[status(thm)],[c_0_60,c_0_73]) ).

cnf(c_0_82,plain,
    is_a_theorem(implies(not(X1),implies(not(X2),not(X2)))),
    inference(spm,[status(thm)],[c_0_74,c_0_75]) ).

fof(c_0_83,negated_conjecture,
    ~ equivalence_1,
    inference(assume_negation,[status(cth)],[hilbert_equivalence_1]) ).

cnf(c_0_84,plain,
    ( is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(implies(not(X1),X3))
    | ~ is_a_theorem(implies(X3,X2)) ),
    inference(spm,[status(thm)],[c_0_60,c_0_76]) ).

cnf(c_0_85,plain,
    ( X1 = X2
    | ~ is_a_theorem(not(implies(implies(X1,X2),not(implies(X2,X1))))) ),
    inference(rw,[status(thm)],[c_0_77,c_0_78]) ).

cnf(c_0_86,plain,
    implies(implies(X1,not(not(X2))),X3) = implies(implies(X1,X2),X3),
    inference(spm,[status(thm)],[c_0_66,c_0_41]) ).

cnf(c_0_87,plain,
    is_a_theorem(implies(X1,not(implies(X1,not(X1))))),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_79,c_0_80]),c_0_66]) ).

cnf(c_0_88,plain,
    is_a_theorem(implies(not(X1),not(X1))),
    inference(spm,[status(thm)],[c_0_81,c_0_82]) ).

fof(c_0_89,plain,
    ! [X3,X4] :
      ( ( ~ equivalence_1
        | is_a_theorem(implies(equiv(X3,X4),implies(X3,X4))) )
      & ( ~ is_a_theorem(implies(equiv(esk27_0,esk28_0),implies(esk27_0,esk28_0)))
        | equivalence_1 ) ),
    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)],[equivalence_1])])])])])]) ).

fof(c_0_90,negated_conjecture,
    ~ equivalence_1,
    inference(fof_simplification,[status(thm)],[c_0_83]) ).

cnf(c_0_91,plain,
    ( is_a_theorem(implies(not(X1),X2))
    | ~ is_a_theorem(implies(implies(X3,not(X1)),X2)) ),
    inference(spm,[status(thm)],[c_0_84,c_0_75]) ).

cnf(c_0_92,plain,
    is_a_theorem(implies(implies(not(X1),not(X2)),implies(X2,X1))),
    inference(spm,[status(thm)],[c_0_61,c_0_66]) ).

cnf(c_0_93,plain,
    ( X1 = not(not(X2))
    | ~ is_a_theorem(not(implies(implies(X1,X2),not(implies(X2,X1))))) ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_85,c_0_66]),c_0_86]) ).

cnf(c_0_94,plain,
    ( is_a_theorem(not(implies(X1,not(X1))))
    | ~ is_a_theorem(X1) ),
    inference(spm,[status(thm)],[c_0_60,c_0_87]) ).

cnf(c_0_95,plain,
    is_a_theorem(implies(X1,X1)),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_72,c_0_88]),c_0_66]) ).

cnf(c_0_96,plain,
    ( equivalence_1
    | ~ is_a_theorem(implies(equiv(esk27_0,esk28_0),implies(esk27_0,esk28_0))) ),
    inference(split_conjunct,[status(thm)],[c_0_89]) ).

cnf(c_0_97,negated_conjecture,
    ~ equivalence_1,
    inference(split_conjunct,[status(thm)],[c_0_90]) ).

cnf(c_0_98,plain,
    is_a_theorem(implies(not(X1),implies(X1,X2))),
    inference(spm,[status(thm)],[c_0_91,c_0_92]) ).

cnf(c_0_99,plain,
    not(not(X1)) = X1,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_93,c_0_94]),c_0_95])]) ).

cnf(c_0_100,plain,
    ~ is_a_theorem(implies(not(implies(implies(esk27_0,esk28_0),not(implies(esk28_0,esk27_0)))),implies(esk27_0,esk28_0))),
    inference(sr,[status(thm)],[inference(rw,[status(thm)],[c_0_96,c_0_78]),c_0_97]) ).

cnf(c_0_101,plain,
    is_a_theorem(implies(not(implies(X1,X2)),X1)),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_79,c_0_98]),c_0_99]) ).

cnf(c_0_102,plain,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_100,c_0_101])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem  : LCL493+1 : TPTP v8.1.0. Released v3.3.0.
% 0.12/0.12  % Command  : run_ET %s %d
% 0.12/0.33  % Computer : n016.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Sat Jul  2 15:38:14 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.22/1.40  # Running protocol protocol_eprover_29fa5c60d0ee03ec4f64b055553dc135fbe4ee3a for 23 seconds:
% 0.22/1.40  # Preprocessing time       : 0.018 s
% 0.22/1.40  
% 0.22/1.40  # Proof found!
% 0.22/1.40  # SZS status Theorem
% 0.22/1.40  # SZS output start CNFRefutation
% See solution above
% 0.22/1.40  # Proof object total steps             : 103
% 0.22/1.40  # Proof object clause steps            : 62
% 0.22/1.40  # Proof object formula steps           : 41
% 0.22/1.40  # Proof object conjectures             : 4
% 0.22/1.40  # Proof object clause conjectures      : 1
% 0.22/1.40  # Proof object formula conjectures     : 3
% 0.22/1.40  # Proof object initial clauses used    : 26
% 0.22/1.40  # Proof object initial formulas used   : 26
% 0.22/1.40  # Proof object generating inferences   : 20
% 0.22/1.40  # Proof object simplifying inferences  : 51
% 0.22/1.40  # Training examples: 0 positive, 0 negative
% 0.22/1.40  # Parsed axioms                        : 45
% 0.22/1.40  # Removed by relevancy pruning/SinE    : 0
% 0.22/1.40  # Initial clauses                      : 74
% 0.22/1.40  # Removed in clause preprocessing      : 0
% 0.22/1.40  # Initial clauses in saturation        : 74
% 0.22/1.40  # Processed clauses                    : 4812
% 0.22/1.40  # ...of these trivial                  : 344
% 0.22/1.40  # ...subsumed                          : 3300
% 0.22/1.40  # ...remaining for further processing  : 1168
% 0.22/1.40  # Other redundant clauses eliminated   : 0
% 0.22/1.40  # Clauses deleted for lack of memory   : 0
% 0.22/1.40  # Backward-subsumed                    : 52
% 0.22/1.40  # Backward-rewritten                   : 553
% 0.22/1.40  # Generated clauses                    : 72621
% 0.22/1.40  # ...of the previous two non-trivial   : 54035
% 0.22/1.40  # Contextual simplify-reflections      : 1210
% 0.22/1.40  # Paramodulations                      : 72613
% 0.22/1.40  # Factorizations                       : 0
% 0.22/1.40  # Equation resolutions                 : 0
% 0.22/1.40  # Current number of processed clauses  : 560
% 0.22/1.40  #    Positive orientable unit clauses  : 112
% 0.22/1.40  #    Positive unorientable unit clauses: 0
% 0.22/1.40  #    Negative unit clauses             : 42
% 0.22/1.40  #    Non-unit-clauses                  : 406
% 0.22/1.40  # Current number of unprocessed clauses: 33286
% 0.22/1.40  # ...number of literals in the above   : 122884
% 0.22/1.40  # Current number of archived formulas  : 0
% 0.22/1.40  # Current number of archived clauses   : 605
% 0.22/1.40  # Clause-clause subsumption calls (NU) : 205197
% 0.22/1.40  # Rec. Clause-clause subsumption calls : 176276
% 0.22/1.40  # Non-unit clause-clause subsumptions  : 3235
% 0.22/1.40  # Unit Clause-clause subsumption calls : 9822
% 0.22/1.40  # Rewrite failures with RHS unbound    : 0
% 0.22/1.40  # BW rewrite match attempts            : 20961
% 0.22/1.40  # BW rewrite match successes           : 496
% 0.22/1.40  # Condensation attempts                : 0
% 0.22/1.40  # Condensation successes               : 0
% 0.22/1.40  # Termbank termtop insertions          : 1057503
% 0.22/1.40  
% 0.22/1.40  # -------------------------------------------------
% 0.22/1.40  # User time                : 0.677 s
% 0.22/1.40  # System time              : 0.027 s
% 0.22/1.40  # Total time               : 0.705 s
% 0.22/1.40  # Maximum resident set size: 37104 pages
% 0.22/23.44  eprover: CPU time limit exceeded, terminating
% 0.22/23.45  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.45  eprover: No such file or directory
% 0.22/23.46  eprover: CPU time limit exceeded, terminating
% 0.22/23.46  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.46  eprover: No such file or directory
% 0.22/23.47  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.47  eprover: No such file or directory
% 0.22/23.47  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.47  eprover: No such file or directory
% 0.22/23.47  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.47  eprover: No such file or directory
% 0.22/23.48  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.48  eprover: No such file or directory
% 0.22/23.48  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.48  eprover: No such file or directory
% 0.22/23.48  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.48  eprover: No such file or directory
% 0.22/23.48  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.48  eprover: No such file or directory
% 0.22/23.49  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.49  eprover: No such file or directory
% 0.22/23.49  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.49  eprover: No such file or directory
% 0.22/23.49  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.49  eprover: No such file or directory
% 0.22/23.50  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.50  eprover: No such file or directory
% 0.22/23.50  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.50  eprover: No such file or directory
% 0.22/23.50  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.50  eprover: No such file or directory
% 0.22/23.51  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.51  eprover: No such file or directory
% 0.22/23.51  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.51  eprover: No such file or directory
% 0.22/23.51  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.51  eprover: No such file or directory
% 0.22/23.51  eprover: Cannot stat file /export/starexec/sandbox/solver/bin/../tmp/theBenchmark.p
% 0.22/23.51  eprover: No such file or directory
%------------------------------------------------------------------------------