TSTP Solution File: GRA007+2 by E---3.1.00

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : E---3.1.00
% Problem  : GRA007+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_E %s %d THM

% Computer : n011.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 : Sat May  4 07:46:22 EDT 2024

% Result   : Theorem 1.40s 0.72s
% Output   : CNFRefutation 1.40s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   15
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   85 (  16 unt;   0 def)
%            Number of atoms       :  395 ( 121 equ)
%            Maximal formula atoms :   37 (   4 avg)
%            Number of connectives :  491 ( 181   ~; 204   |;  76   &)
%                                         (   6 <=>;  21  =>;   1  <=;   2 <~>)
%            Maximal formula depth :   15 (   6 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :   12 (  10 usr;   2 prp; 0-3 aty)
%            Number of functors    :   12 (  12 usr;   5 con; 0-4 aty)
%            Number of variables   :  204 (  24 sgn 102   !;  11   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(shortest_path_defn,axiom,
    ! [X2,X3,X10] :
      ( shortest_path(X2,X3,X10)
    <=> ( path(X2,X3,X10)
        & X2 != X3
        & ! [X4] :
            ( path(X2,X3,X4)
           => less_or_equal(length_of(X10),length_of(X4)) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',shortest_path_defn) ).

fof(back_edge,conjecture,
    ( complete
   => ! [X2,X3,X7,X8,X4] :
        ( ( shortest_path(X2,X3,X4)
          & precedes(X7,X8,X4) )
       => ? [X9] :
            ( edge(X9)
            & tail_of(X9) = head_of(X8)
            & head_of(X9) = tail_of(X7) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',back_edge) ).

fof(precedes_properties,axiom,
    ! [X4,X2,X3] :
      ( path(X2,X3,X4)
     => ! [X7,X8] :
          ( precedes(X7,X8,X4)
         => ( on_path(X7,X4)
            & on_path(X8,X4)
            & ( sequential(X7,X8)
            <~> ? [X9] :
                  ( sequential(X7,X9)
                  & precedes(X9,X8,X4) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',precedes_properties) ).

fof(in_path_properties,axiom,
    ! [X2,X3,X4,X6] :
      ( ( path(X2,X3,X4)
        & in_path(X6,X4) )
     => ( vertex(X6)
        & ? [X1] :
            ( on_path(X1,X4)
            & ( X6 = head_of(X1)
              | X6 = tail_of(X1) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',in_path_properties) ).

fof(on_path_properties,axiom,
    ! [X2,X3,X4,X1] :
      ( ( path(X2,X3,X4)
        & on_path(X1,X4) )
     => ( edge(X1)
        & in_path(head_of(X1),X4)
        & in_path(tail_of(X1),X4) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',on_path_properties) ).

fof(complete_properties,axiom,
    ( complete
   => ! [X2,X3] :
        ( ( vertex(X2)
          & vertex(X3)
          & X2 != X3 )
       => ? [X1] :
            ( edge(X1)
            & ( ( X2 = head_of(X1)
                & X3 = tail_of(X1) )
            <~> ( X3 = head_of(X1)
                & X2 = tail_of(X1) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',complete_properties) ).

fof(precedes_defn,axiom,
    ! [X4,X2,X3] :
      ( path(X2,X3,X4)
     => ! [X7,X8] :
          ( precedes(X7,X8,X4)
         <= ( on_path(X7,X4)
            & on_path(X8,X4)
            & ( sequential(X7,X8)
              | ? [X9] :
                  ( sequential(X7,X9)
                  & precedes(X9,X8,X4) ) ) ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',precedes_defn) ).

fof(shortest_path_properties,axiom,
    ! [X2,X3,X7,X8,X4] :
      ( ( shortest_path(X2,X3,X4)
        & precedes(X7,X8,X4) )
     => ( ~ ? [X9] :
              ( tail_of(X9) = tail_of(X7)
              & head_of(X9) = head_of(X8) )
        & ~ precedes(X8,X7,X4) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',shortest_path_properties) ).

fof(sequential_defn,axiom,
    ! [X7,X8] :
      ( sequential(X7,X8)
    <=> ( edge(X7)
        & edge(X8)
        & X7 != X8
        & head_of(X7) = tail_of(X8) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p',sequential_defn) ).

fof(c_0_9,plain,
    ! [X2,X3,X10] :
      ( shortest_path(X2,X3,X10)
    <=> ( path(X2,X3,X10)
        & X2 != X3
        & ! [X4] :
            ( path(X2,X3,X4)
           => less_or_equal(length_of(X10),length_of(X4)) ) ) ),
    inference(fof_simplification,[status(thm)],[shortest_path_defn]) ).

fof(c_0_10,negated_conjecture,
    ~ ( complete
     => ! [X2,X3,X7,X8,X4] :
          ( ( shortest_path(X2,X3,X4)
            & precedes(X7,X8,X4) )
         => ? [X9] :
              ( edge(X9)
              & tail_of(X9) = head_of(X8)
              & head_of(X9) = tail_of(X7) ) ) ),
    inference(assume_negation,[status(cth)],[back_edge]) ).

fof(c_0_11,plain,
    ! [X53,X54,X55,X56,X57,X58,X59] :
      ( ( path(X53,X54,X55)
        | ~ shortest_path(X53,X54,X55) )
      & ( X53 != X54
        | ~ shortest_path(X53,X54,X55) )
      & ( ~ path(X53,X54,X56)
        | less_or_equal(length_of(X55),length_of(X56))
        | ~ shortest_path(X53,X54,X55) )
      & ( path(X57,X58,esk6_3(X57,X58,X59))
        | ~ path(X57,X58,X59)
        | X57 = X58
        | shortest_path(X57,X58,X59) )
      & ( ~ less_or_equal(length_of(X59),length_of(esk6_3(X57,X58,X59)))
        | ~ path(X57,X58,X59)
        | X57 = X58
        | shortest_path(X57,X58,X59) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_9])])])])])])]) ).

fof(c_0_12,negated_conjecture,
    ! [X95] :
      ( complete
      & shortest_path(esk9_0,esk10_0,esk13_0)
      & precedes(esk11_0,esk12_0,esk13_0)
      & ( ~ edge(X95)
        | tail_of(X95) != head_of(esk12_0)
        | head_of(X95) != tail_of(esk11_0) ) ),
    inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_10])])])])]) ).

fof(c_0_13,plain,
    ! [X4,X2,X3] :
      ( path(X2,X3,X4)
     => ! [X7,X8] :
          ( precedes(X7,X8,X4)
         => ( on_path(X7,X4)
            & on_path(X8,X4)
            & ~ ( sequential(X7,X8)
              <=> ? [X9] :
                    ( sequential(X7,X9)
                    & precedes(X9,X8,X4) ) ) ) ) ),
    inference(fof_simplification,[status(thm)],[precedes_properties]) ).

fof(c_0_14,plain,
    ! [X33,X34,X35,X36] :
      ( ( vertex(X36)
        | ~ path(X33,X34,X35)
        | ~ in_path(X36,X35) )
      & ( on_path(esk4_4(X33,X34,X35,X36),X35)
        | ~ path(X33,X34,X35)
        | ~ in_path(X36,X35) )
      & ( X36 = head_of(esk4_4(X33,X34,X35,X36))
        | X36 = tail_of(esk4_4(X33,X34,X35,X36))
        | ~ path(X33,X34,X35)
        | ~ in_path(X36,X35) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[in_path_properties])])])])]) ).

cnf(c_0_15,plain,
    ( path(X1,X2,X3)
    | ~ shortest_path(X1,X2,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_11]) ).

cnf(c_0_16,negated_conjecture,
    shortest_path(esk9_0,esk10_0,esk13_0),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

fof(c_0_17,plain,
    ! [X29,X30,X31,X32] :
      ( ( edge(X32)
        | ~ path(X29,X30,X31)
        | ~ on_path(X32,X31) )
      & ( in_path(head_of(X32),X31)
        | ~ path(X29,X30,X31)
        | ~ on_path(X32,X31) )
      & ( in_path(tail_of(X32),X31)
        | ~ path(X29,X30,X31)
        | ~ on_path(X32,X31) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[on_path_properties])])])]) ).

fof(c_0_18,plain,
    ! [X46,X47,X48,X49,X50,X51] :
      ( ( on_path(X49,X46)
        | ~ precedes(X49,X50,X46)
        | ~ path(X47,X48,X46) )
      & ( on_path(X50,X46)
        | ~ precedes(X49,X50,X46)
        | ~ path(X47,X48,X46) )
      & ( ~ sequential(X49,X50)
        | ~ sequential(X49,X51)
        | ~ precedes(X51,X50,X46)
        | ~ precedes(X49,X50,X46)
        | ~ path(X47,X48,X46) )
      & ( sequential(X49,esk5_3(X46,X49,X50))
        | sequential(X49,X50)
        | ~ precedes(X49,X50,X46)
        | ~ path(X47,X48,X46) )
      & ( precedes(esk5_3(X46,X49,X50),X50,X46)
        | sequential(X49,X50)
        | ~ precedes(X49,X50,X46)
        | ~ path(X47,X48,X46) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_13])])])])])])]) ).

fof(c_0_19,plain,
    ( complete
   => ! [X2,X3] :
        ( ( vertex(X2)
          & vertex(X3)
          & X2 != X3 )
       => ? [X1] :
            ( edge(X1)
            & ~ ( ( X2 = head_of(X1)
                  & X3 = tail_of(X1) )
              <=> ( X3 = head_of(X1)
                  & X2 = tail_of(X1) ) ) ) ) ),
    inference(fof_simplification,[status(thm)],[complete_properties]) ).

cnf(c_0_20,plain,
    ( vertex(X1)
    | ~ path(X2,X3,X4)
    | ~ in_path(X1,X4) ),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_21,negated_conjecture,
    path(esk9_0,esk10_0,esk13_0),
    inference(spm,[status(thm)],[c_0_15,c_0_16]) ).

cnf(c_0_22,plain,
    ( in_path(tail_of(X1),X2)
    | ~ path(X3,X4,X2)
    | ~ on_path(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_23,plain,
    ( on_path(X1,X2)
    | ~ precedes(X1,X3,X2)
    | ~ path(X4,X5,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_24,negated_conjecture,
    precedes(esk11_0,esk12_0,esk13_0),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_25,plain,
    ( in_path(head_of(X1),X2)
    | ~ path(X3,X4,X2)
    | ~ on_path(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_26,plain,
    ( on_path(X1,X2)
    | ~ precedes(X3,X1,X2)
    | ~ path(X4,X5,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

fof(c_0_27,plain,
    ! [X15,X16] :
      ( ( edge(esk1_2(X15,X16))
        | ~ vertex(X15)
        | ~ vertex(X16)
        | X15 = X16
        | ~ complete )
      & ( X15 != head_of(esk1_2(X15,X16))
        | X16 != tail_of(esk1_2(X15,X16))
        | X16 != head_of(esk1_2(X15,X16))
        | X15 != tail_of(esk1_2(X15,X16))
        | ~ vertex(X15)
        | ~ vertex(X16)
        | X15 = X16
        | ~ complete )
      & ( X16 = head_of(esk1_2(X15,X16))
        | X15 = head_of(esk1_2(X15,X16))
        | ~ vertex(X15)
        | ~ vertex(X16)
        | X15 = X16
        | ~ complete )
      & ( X15 = tail_of(esk1_2(X15,X16))
        | X15 = head_of(esk1_2(X15,X16))
        | ~ vertex(X15)
        | ~ vertex(X16)
        | X15 = X16
        | ~ complete )
      & ( X16 = head_of(esk1_2(X15,X16))
        | X16 = tail_of(esk1_2(X15,X16))
        | ~ vertex(X15)
        | ~ vertex(X16)
        | X15 = X16
        | ~ complete )
      & ( X15 = tail_of(esk1_2(X15,X16))
        | X16 = tail_of(esk1_2(X15,X16))
        | ~ vertex(X15)
        | ~ vertex(X16)
        | X15 = X16
        | ~ complete ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_19])])])])])]) ).

cnf(c_0_28,negated_conjecture,
    ( vertex(X1)
    | ~ in_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_20,c_0_21]) ).

cnf(c_0_29,negated_conjecture,
    ( in_path(tail_of(X1),esk13_0)
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_22,c_0_21]) ).

cnf(c_0_30,negated_conjecture,
    ( on_path(esk11_0,esk13_0)
    | ~ path(X1,X2,esk13_0) ),
    inference(spm,[status(thm)],[c_0_23,c_0_24]) ).

cnf(c_0_31,negated_conjecture,
    ( in_path(head_of(X1),esk13_0)
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_25,c_0_21]) ).

cnf(c_0_32,negated_conjecture,
    ( on_path(esk12_0,esk13_0)
    | ~ path(X1,X2,esk13_0) ),
    inference(spm,[status(thm)],[c_0_26,c_0_24]) ).

cnf(c_0_33,plain,
    ( X1 = tail_of(esk1_2(X1,X2))
    | X2 = tail_of(esk1_2(X1,X2))
    | X1 = X2
    | ~ vertex(X1)
    | ~ vertex(X2)
    | ~ complete ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_34,negated_conjecture,
    complete,
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_35,negated_conjecture,
    ( vertex(tail_of(X1))
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_36,negated_conjecture,
    on_path(esk11_0,esk13_0),
    inference(spm,[status(thm)],[c_0_30,c_0_21]) ).

fof(c_0_37,plain,
    ! [X4,X2,X3] :
      ( path(X2,X3,X4)
     => ! [X7,X8] :
          ( ( on_path(X7,X4)
            & on_path(X8,X4)
            & ( sequential(X7,X8)
              | ? [X9] :
                  ( sequential(X7,X9)
                  & precedes(X9,X8,X4) ) ) )
         => precedes(X7,X8,X4) ) ),
    inference(fof_simplification,[status(thm)],[precedes_defn]) ).

fof(c_0_38,plain,
    ! [X2,X3,X7,X8,X4] :
      ( ( shortest_path(X2,X3,X4)
        & precedes(X7,X8,X4) )
     => ( ~ ? [X9] :
              ( tail_of(X9) = tail_of(X7)
              & head_of(X9) = head_of(X8) )
        & ~ precedes(X8,X7,X4) ) ),
    inference(fof_simplification,[status(thm)],[shortest_path_properties]) ).

cnf(c_0_39,plain,
    ( X1 = head_of(esk1_2(X2,X1))
    | X2 = head_of(esk1_2(X2,X1))
    | X2 = X1
    | ~ vertex(X2)
    | ~ vertex(X1)
    | ~ complete ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_40,negated_conjecture,
    ( vertex(head_of(X1))
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_28,c_0_31]) ).

cnf(c_0_41,negated_conjecture,
    on_path(esk12_0,esk13_0),
    inference(spm,[status(thm)],[c_0_32,c_0_21]) ).

cnf(c_0_42,plain,
    ( tail_of(esk1_2(X1,X2)) = X1
    | tail_of(esk1_2(X1,X2)) = X2
    | X1 = X2
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_33,c_0_34])]) ).

cnf(c_0_43,negated_conjecture,
    vertex(tail_of(esk11_0)),
    inference(spm,[status(thm)],[c_0_35,c_0_36]) ).

fof(c_0_44,plain,
    ! [X40,X41,X42,X43,X44,X45] :
      ( ( ~ sequential(X43,X44)
        | ~ on_path(X43,X40)
        | ~ on_path(X44,X40)
        | precedes(X43,X44,X40)
        | ~ path(X41,X42,X40) )
      & ( ~ sequential(X43,X45)
        | ~ precedes(X45,X44,X40)
        | ~ on_path(X43,X40)
        | ~ on_path(X44,X40)
        | precedes(X43,X44,X40)
        | ~ path(X41,X42,X40) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_37])])])])]) ).

fof(c_0_45,plain,
    ! [X61,X62,X63,X64,X65,X66] :
      ( ( tail_of(X66) != tail_of(X63)
        | head_of(X66) != head_of(X64)
        | ~ shortest_path(X61,X62,X65)
        | ~ precedes(X63,X64,X65) )
      & ( ~ precedes(X64,X63,X65)
        | ~ shortest_path(X61,X62,X65)
        | ~ precedes(X63,X64,X65) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_38])])])])]) ).

cnf(c_0_46,plain,
    ( head_of(esk1_2(X1,X2)) = X2
    | head_of(esk1_2(X1,X2)) = X1
    | X2 = X1
    | ~ vertex(X1)
    | ~ vertex(X2) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_39,c_0_34])]) ).

cnf(c_0_47,negated_conjecture,
    vertex(head_of(esk12_0)),
    inference(spm,[status(thm)],[c_0_40,c_0_41]) ).

cnf(c_0_48,plain,
    ( X1 = tail_of(esk1_2(X1,X2))
    | X1 = head_of(esk1_2(X1,X2))
    | X1 = X2
    | ~ vertex(X1)
    | ~ vertex(X2)
    | ~ complete ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_49,negated_conjecture,
    ( tail_of(esk1_2(X1,tail_of(esk11_0))) = tail_of(esk11_0)
    | tail_of(esk1_2(X1,tail_of(esk11_0))) = X1
    | X1 = tail_of(esk11_0)
    | ~ vertex(X1) ),
    inference(spm,[status(thm)],[c_0_42,c_0_43]) ).

cnf(c_0_50,plain,
    ( precedes(X1,X2,X3)
    | ~ sequential(X1,X2)
    | ~ on_path(X1,X3)
    | ~ on_path(X2,X3)
    | ~ path(X4,X5,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_44]) ).

cnf(c_0_51,plain,
    ( ~ precedes(X1,X2,X3)
    | ~ shortest_path(X4,X5,X3)
    | ~ precedes(X2,X1,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_45]) ).

cnf(c_0_52,plain,
    ( tail_of(X1) != tail_of(X2)
    | head_of(X1) != head_of(X3)
    | ~ shortest_path(X4,X5,X6)
    | ~ precedes(X2,X3,X6) ),
    inference(split_conjunct,[status(thm)],[c_0_45]) ).

cnf(c_0_53,negated_conjecture,
    ( head_of(esk1_2(head_of(esk12_0),X1)) = head_of(esk12_0)
    | head_of(esk1_2(head_of(esk12_0),X1)) = X1
    | X1 = head_of(esk12_0)
    | ~ vertex(X1) ),
    inference(spm,[status(thm)],[c_0_46,c_0_47]) ).

cnf(c_0_54,plain,
    ( tail_of(esk1_2(X1,X2)) = X1
    | head_of(esk1_2(X1,X2)) = X1
    | X1 = X2
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_48,c_0_34])]) ).

cnf(c_0_55,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = head_of(esk12_0)
    | tail_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = tail_of(esk11_0)
    | tail_of(esk11_0) = head_of(esk12_0) ),
    inference(spm,[status(thm)],[c_0_49,c_0_47]) ).

cnf(c_0_56,negated_conjecture,
    ( precedes(X1,X2,esk13_0)
    | ~ sequential(X1,X2)
    | ~ on_path(X2,esk13_0)
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_50,c_0_21]) ).

cnf(c_0_57,negated_conjecture,
    ( ~ precedes(X1,X2,esk13_0)
    | ~ precedes(X2,X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_51,c_0_16]) ).

fof(c_0_58,plain,
    ! [X7,X8] :
      ( sequential(X7,X8)
    <=> ( edge(X7)
        & edge(X8)
        & X7 != X8
        & head_of(X7) = tail_of(X8) ) ),
    inference(fof_simplification,[status(thm)],[sequential_defn]) ).

cnf(c_0_59,plain,
    ( edge(X1)
    | ~ path(X2,X3,X4)
    | ~ on_path(X1,X4) ),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

cnf(c_0_60,negated_conjecture,
    ( head_of(X1) != head_of(X2)
    | tail_of(X1) != tail_of(X3)
    | ~ precedes(X3,X2,esk13_0) ),
    inference(spm,[status(thm)],[c_0_52,c_0_16]) ).

cnf(c_0_61,plain,
    ( X1 = head_of(esk1_2(X2,X1))
    | X1 = tail_of(esk1_2(X2,X1))
    | X2 = X1
    | ~ vertex(X2)
    | ~ vertex(X1)
    | ~ complete ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_62,negated_conjecture,
    ( ~ edge(X1)
    | tail_of(X1) != head_of(esk12_0)
    | head_of(X1) != tail_of(esk11_0) ),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_63,negated_conjecture,
    ( head_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = tail_of(esk11_0)
    | head_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = head_of(esk12_0)
    | tail_of(esk11_0) = head_of(esk12_0) ),
    inference(spm,[status(thm)],[c_0_53,c_0_43]) ).

cnf(c_0_64,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = head_of(esk12_0)
    | head_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = head_of(esk12_0)
    | tail_of(esk11_0) = head_of(esk12_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_54,c_0_55]),c_0_43]),c_0_47])]) ).

cnf(c_0_65,plain,
    ( edge(esk1_2(X1,X2))
    | X1 = X2
    | ~ vertex(X1)
    | ~ vertex(X2)
    | ~ complete ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_66,negated_conjecture,
    ( precedes(X1,esk11_0,esk13_0)
    | ~ sequential(X1,esk11_0)
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_56,c_0_36]) ).

cnf(c_0_67,negated_conjecture,
    ~ precedes(esk12_0,esk11_0,esk13_0),
    inference(spm,[status(thm)],[c_0_57,c_0_24]) ).

fof(c_0_68,plain,
    ! [X38,X39] :
      ( ( edge(X38)
        | ~ sequential(X38,X39) )
      & ( edge(X39)
        | ~ sequential(X38,X39) )
      & ( X38 != X39
        | ~ sequential(X38,X39) )
      & ( head_of(X38) = tail_of(X39)
        | ~ sequential(X38,X39) )
      & ( ~ edge(X38)
        | ~ edge(X39)
        | X38 = X39
        | head_of(X38) != tail_of(X39)
        | sequential(X38,X39) ) ),
    inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_58])])])]) ).

cnf(c_0_69,negated_conjecture,
    ( edge(X1)
    | ~ on_path(X1,esk13_0) ),
    inference(spm,[status(thm)],[c_0_59,c_0_21]) ).

cnf(c_0_70,negated_conjecture,
    ( head_of(X1) != head_of(esk12_0)
    | tail_of(X1) != tail_of(esk11_0) ),
    inference(spm,[status(thm)],[c_0_60,c_0_24]) ).

cnf(c_0_71,plain,
    ( tail_of(esk1_2(X1,X2)) = X2
    | head_of(esk1_2(X1,X2)) = X2
    | X2 = X1
    | ~ vertex(X1)
    | ~ vertex(X2) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_61,c_0_34])]) ).

cnf(c_0_72,negated_conjecture,
    ( head_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = head_of(esk12_0)
    | tail_of(esk11_0) = head_of(esk12_0)
    | ~ edge(esk1_2(head_of(esk12_0),tail_of(esk11_0))) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_62,c_0_63]),c_0_64]) ).

cnf(c_0_73,plain,
    ( X1 = X2
    | edge(esk1_2(X1,X2))
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_65,c_0_34])]) ).

cnf(c_0_74,negated_conjecture,
    ~ sequential(esk12_0,esk11_0),
    inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_66,c_0_41]),c_0_67]) ).

cnf(c_0_75,plain,
    ( X1 = X2
    | sequential(X1,X2)
    | ~ edge(X1)
    | ~ edge(X2)
    | head_of(X1) != tail_of(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_68]) ).

cnf(c_0_76,negated_conjecture,
    edge(esk11_0),
    inference(spm,[status(thm)],[c_0_69,c_0_36]) ).

cnf(c_0_77,negated_conjecture,
    edge(esk12_0),
    inference(spm,[status(thm)],[c_0_69,c_0_41]) ).

cnf(c_0_78,negated_conjecture,
    ( head_of(esk1_2(X1,X2)) = X2
    | X2 = X1
    | head_of(esk1_2(X1,X2)) != head_of(esk12_0)
    | X2 != tail_of(esk11_0)
    | ~ vertex(X1)
    | ~ vertex(X2) ),
    inference(spm,[status(thm)],[c_0_70,c_0_71]) ).

cnf(c_0_79,negated_conjecture,
    ( head_of(esk1_2(head_of(esk12_0),tail_of(esk11_0))) = head_of(esk12_0)
    | tail_of(esk11_0) = head_of(esk12_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_72,c_0_73]),c_0_43]),c_0_47])]) ).

cnf(c_0_80,negated_conjecture,
    ( esk12_0 = esk11_0
    | tail_of(esk11_0) != head_of(esk12_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_74,c_0_75]),c_0_76]),c_0_77])]) ).

cnf(c_0_81,negated_conjecture,
    tail_of(esk11_0) = head_of(esk12_0),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_78,c_0_79]),c_0_47]),c_0_43])]) ).

cnf(c_0_82,negated_conjecture,
    head_of(esk12_0) != head_of(esk11_0),
    inference(er,[status(thm)],[c_0_70]) ).

cnf(c_0_83,negated_conjecture,
    esk12_0 = esk11_0,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_80,c_0_81])]) ).

cnf(c_0_84,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_82,c_0_83])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.14  % Problem    : GRA007+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% 0.07/0.15  % Command    : run_E %s %d THM
% 0.13/0.37  % Computer : n011.cluster.edu
% 0.13/0.37  % Model    : x86_64 x86_64
% 0.13/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.37  % Memory   : 8042.1875MB
% 0.13/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.37  % CPULimit   : 300
% 0.13/0.37  % WCLimit    : 300
% 0.13/0.37  % DateTime   : Fri May  3 11:37:49 EDT 2024
% 0.13/0.37  % CPUTime    : 
% 0.21/0.49  Running first-order theorem proving
% 0.21/0.49  Running: /export/starexec/sandbox2/solver/bin/eprover --delete-bad-limit=2000000000 --definitional-cnf=24 -s --print-statistics -R --print-version --proof-object --auto-schedule=8 --cpu-limit=300 /export/starexec/sandbox2/tmp/tmp.3LfqPIZsjV/E---3.1_13843.p
% 1.40/0.72  # Version: 3.1.0
% 1.40/0.72  # Preprocessing class: FSMSSMSSSSSNFFN.
% 1.40/0.72  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 1.40/0.72  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 1.40/0.72  # Starting new_bool_3 with 300s (1) cores
% 1.40/0.72  # Starting new_bool_1 with 300s (1) cores
% 1.40/0.72  # Starting sh5l with 300s (1) cores
% 1.40/0.72  # G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with pid 13922 completed with status 0
% 1.40/0.72  # Result found by G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN
% 1.40/0.72  # Preprocessing class: FSMSSMSSSSSNFFN.
% 1.40/0.72  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 1.40/0.72  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 1.40/0.72  # No SInE strategy applied
% 1.40/0.72  # Search class: FGHSF-FFMS32-SFFFFFNN
% 1.40/0.72  # Scheduled 6 strats onto 5 cores with 1500 seconds (1500 total)
% 1.40/0.72  # Starting G-E--_301_C18_F1_URBAN_S0Y with 811s (1) cores
% 1.40/0.72  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 1.40/0.72  # Starting new_bool_3 with 136s (1) cores
% 1.40/0.72  # Starting new_bool_1 with 136s (1) cores
% 1.40/0.72  # Starting sh5l with 136s (1) cores
% 1.40/0.72  # G-E--_301_C18_F1_URBAN_S0Y with pid 13928 completed with status 0
% 1.40/0.72  # Result found by G-E--_301_C18_F1_URBAN_S0Y
% 1.40/0.72  # Preprocessing class: FSMSSMSSSSSNFFN.
% 1.40/0.72  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 1.40/0.72  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 1.40/0.72  # No SInE strategy applied
% 1.40/0.72  # Search class: FGHSF-FFMS32-SFFFFFNN
% 1.40/0.72  # Scheduled 6 strats onto 5 cores with 1500 seconds (1500 total)
% 1.40/0.72  # Starting G-E--_301_C18_F1_URBAN_S0Y with 811s (1) cores
% 1.40/0.72  # Preprocessing time       : 0.002 s
% 1.40/0.72  
% 1.40/0.72  # Proof found!
% 1.40/0.72  # SZS status Theorem
% 1.40/0.72  # SZS output start CNFRefutation
% See solution above
% 1.40/0.72  # Parsed axioms                        : 19
% 1.40/0.72  # Removed by relevancy pruning/SinE    : 0
% 1.40/0.72  # Initial clauses                      : 64
% 1.40/0.72  # Removed in clause preprocessing      : 1
% 1.40/0.72  # Initial clauses in saturation        : 63
% 1.40/0.72  # Processed clauses                    : 975
% 1.40/0.72  # ...of these trivial                  : 79
% 1.40/0.72  # ...subsumed                          : 203
% 1.40/0.72  # ...remaining for further processing  : 693
% 1.40/0.72  # Other redundant clauses eliminated   : 71
% 1.40/0.72  # Clauses deleted for lack of memory   : 0
% 1.40/0.72  # Backward-subsumed                    : 37
% 1.40/0.72  # Backward-rewritten                   : 314
% 1.40/0.72  # Generated clauses                    : 6219
% 1.40/0.72  # ...of the previous two non-redundant : 5827
% 1.40/0.72  # ...aggressively subsumed             : 0
% 1.40/0.72  # Contextual simplify-reflections      : 65
% 1.40/0.72  # Paramodulations                      : 6053
% 1.40/0.72  # Factorizations                       : 54
% 1.40/0.72  # NegExts                              : 0
% 1.40/0.72  # Equation resolutions                 : 112
% 1.40/0.72  # Disequality decompositions           : 0
% 1.40/0.72  # Total rewrite steps                  : 1589
% 1.40/0.72  # ...of those cached                   : 1572
% 1.40/0.72  # Propositional unsat checks           : 0
% 1.40/0.72  #    Propositional check models        : 0
% 1.40/0.72  #    Propositional check unsatisfiable : 0
% 1.40/0.72  #    Propositional clauses             : 0
% 1.40/0.72  #    Propositional clauses after purity: 0
% 1.40/0.72  #    Propositional unsat core size     : 0
% 1.40/0.72  #    Propositional preprocessing time  : 0.000
% 1.40/0.72  #    Propositional encoding time       : 0.000
% 1.40/0.72  #    Propositional solver time         : 0.000
% 1.40/0.72  #    Success case prop preproc time    : 0.000
% 1.40/0.72  #    Success case prop encoding time   : 0.000
% 1.40/0.72  #    Success case prop solver time     : 0.000
% 1.40/0.72  # Current number of processed clauses  : 340
% 1.40/0.72  #    Positive orientable unit clauses  : 15
% 1.40/0.72  #    Positive unorientable unit clauses: 0
% 1.40/0.72  #    Negative unit clauses             : 2
% 1.40/0.72  #    Non-unit-clauses                  : 323
% 1.40/0.72  # Current number of unprocessed clauses: 4743
% 1.40/0.72  # ...number of literals in the above   : 33780
% 1.40/0.72  # Current number of archived formulas  : 0
% 1.40/0.72  # Current number of archived clauses   : 351
% 1.40/0.72  # Clause-clause subsumption calls (NU) : 42658
% 1.40/0.72  # Rec. Clause-clause subsumption calls : 6585
% 1.40/0.72  # Non-unit clause-clause subsumptions  : 287
% 1.40/0.72  # Unit Clause-clause subsumption calls : 382
% 1.40/0.72  # Rewrite failures with RHS unbound    : 0
% 1.40/0.72  # BW rewrite match attempts            : 4
% 1.40/0.72  # BW rewrite match successes           : 4
% 1.40/0.72  # Condensation attempts                : 0
% 1.40/0.72  # Condensation successes               : 0
% 1.40/0.72  # Termbank termtop insertions          : 166583
% 1.40/0.72  # Search garbage collected termcells   : 1276
% 1.40/0.72  
% 1.40/0.72  # -------------------------------------------------
% 1.40/0.72  # User time                : 0.202 s
% 1.40/0.72  # System time              : 0.009 s
% 1.40/0.72  # Total time               : 0.211 s
% 1.40/0.72  # Maximum resident set size: 1900 pages
% 1.40/0.72  
% 1.40/0.72  # -------------------------------------------------
% 1.40/0.72  # User time                : 1.017 s
% 1.40/0.72  # System time              : 0.018 s
% 1.40/0.72  # Total time               : 1.035 s
% 1.40/0.72  # Maximum resident set size: 1724 pages
% 1.40/0.72  % E---3.1 exiting
% 1.40/0.72  % E exiting
%------------------------------------------------------------------------------