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

View Problem - Process Solution

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

% Computer : n025.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 : Mon May 20 20:40:58 EDT 2024

% Result   : Theorem 2.17s 0.76s
% Output   : CNFRefutation 2.17s
% 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/benchmark/Axioms/GRA001+0.ax',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/benchmark/theBenchmark.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/benchmark/Axioms/GRA001+0.ax',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/benchmark/Axioms/GRA001+0.ax',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/benchmark/Axioms/GRA001+0.ax',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/benchmark/Axioms/GRA001+0.ax',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/benchmark/Axioms/GRA001+0.ax',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/benchmark/Axioms/GRA001+0.ax',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/benchmark/Axioms/GRA001+0.ax',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,
    ! [X69,X70,X71,X72,X73,X74,X75] :
      ( ( path(X69,X70,X71)
        | ~ shortest_path(X69,X70,X71) )
      & ( X69 != X70
        | ~ shortest_path(X69,X70,X71) )
      & ( ~ path(X69,X70,X72)
        | less_or_equal(length_of(X71),length_of(X72))
        | ~ shortest_path(X69,X70,X71) )
      & ( path(X73,X74,esk10_3(X73,X74,X75))
        | ~ path(X73,X74,X75)
        | X73 = X74
        | shortest_path(X73,X74,X75) )
      & ( ~ less_or_equal(length_of(X75),length_of(esk10_3(X73,X74,X75)))
        | ~ path(X73,X74,X75)
        | X73 = X74
        | shortest_path(X73,X74,X75) ) ),
    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,
    ! [X18] :
      ( complete
      & shortest_path(esk1_0,esk2_0,esk5_0)
      & precedes(esk3_0,esk4_0,esk5_0)
      & ( ~ edge(X18)
        | tail_of(X18) != head_of(esk4_0)
        | head_of(X18) != tail_of(esk3_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,
    ! [X77,X78,X79,X80] :
      ( ( vertex(X80)
        | ~ path(X77,X78,X79)
        | ~ in_path(X80,X79) )
      & ( on_path(esk11_4(X77,X78,X79,X80),X79)
        | ~ path(X77,X78,X79)
        | ~ in_path(X80,X79) )
      & ( X80 = head_of(esk11_4(X77,X78,X79,X80))
        | X80 = tail_of(esk11_4(X77,X78,X79,X80))
        | ~ path(X77,X78,X79)
        | ~ in_path(X80,X79) ) ),
    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(esk1_0,esk2_0,esk5_0),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

fof(c_0_17,plain,
    ! [X49,X50,X51,X52] :
      ( ( edge(X52)
        | ~ path(X49,X50,X51)
        | ~ on_path(X52,X51) )
      & ( in_path(head_of(X52),X51)
        | ~ path(X49,X50,X51)
        | ~ on_path(X52,X51) )
      & ( in_path(tail_of(X52),X51)
        | ~ path(X49,X50,X51)
        | ~ on_path(X52,X51) ) ),
    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,
    ! [X62,X63,X64,X65,X66,X67] :
      ( ( on_path(X65,X62)
        | ~ precedes(X65,X66,X62)
        | ~ path(X63,X64,X62) )
      & ( on_path(X66,X62)
        | ~ precedes(X65,X66,X62)
        | ~ path(X63,X64,X62) )
      & ( ~ sequential(X65,X66)
        | ~ sequential(X65,X67)
        | ~ precedes(X67,X66,X62)
        | ~ precedes(X65,X66,X62)
        | ~ path(X63,X64,X62) )
      & ( sequential(X65,esk9_3(X62,X65,X66))
        | sequential(X65,X66)
        | ~ precedes(X65,X66,X62)
        | ~ path(X63,X64,X62) )
      & ( precedes(esk9_3(X62,X65,X66),X66,X62)
        | sequential(X65,X66)
        | ~ precedes(X65,X66,X62)
        | ~ path(X63,X64,X62) ) ),
    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(esk1_0,esk2_0,esk5_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(esk3_0,esk4_0,esk5_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,
    ! [X35,X36] :
      ( ( edge(esk6_2(X35,X36))
        | ~ vertex(X35)
        | ~ vertex(X36)
        | X35 = X36
        | ~ complete )
      & ( X35 != head_of(esk6_2(X35,X36))
        | X36 != tail_of(esk6_2(X35,X36))
        | X36 != head_of(esk6_2(X35,X36))
        | X35 != tail_of(esk6_2(X35,X36))
        | ~ vertex(X35)
        | ~ vertex(X36)
        | X35 = X36
        | ~ complete )
      & ( X36 = head_of(esk6_2(X35,X36))
        | X35 = head_of(esk6_2(X35,X36))
        | ~ vertex(X35)
        | ~ vertex(X36)
        | X35 = X36
        | ~ complete )
      & ( X35 = tail_of(esk6_2(X35,X36))
        | X35 = head_of(esk6_2(X35,X36))
        | ~ vertex(X35)
        | ~ vertex(X36)
        | X35 = X36
        | ~ complete )
      & ( X36 = head_of(esk6_2(X35,X36))
        | X36 = tail_of(esk6_2(X35,X36))
        | ~ vertex(X35)
        | ~ vertex(X36)
        | X35 = X36
        | ~ complete )
      & ( X35 = tail_of(esk6_2(X35,X36))
        | X36 = tail_of(esk6_2(X35,X36))
        | ~ vertex(X35)
        | ~ vertex(X36)
        | X35 = X36
        | ~ 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,esk5_0) ),
    inference(spm,[status(thm)],[c_0_20,c_0_21]) ).

cnf(c_0_29,negated_conjecture,
    ( in_path(tail_of(X1),esk5_0)
    | ~ on_path(X1,esk5_0) ),
    inference(spm,[status(thm)],[c_0_22,c_0_21]) ).

cnf(c_0_30,negated_conjecture,
    ( on_path(esk3_0,esk5_0)
    | ~ path(X1,X2,esk5_0) ),
    inference(spm,[status(thm)],[c_0_23,c_0_24]) ).

cnf(c_0_31,negated_conjecture,
    ( in_path(head_of(X1),esk5_0)
    | ~ on_path(X1,esk5_0) ),
    inference(spm,[status(thm)],[c_0_25,c_0_21]) ).

cnf(c_0_32,negated_conjecture,
    ( on_path(esk4_0,esk5_0)
    | ~ path(X1,X2,esk5_0) ),
    inference(spm,[status(thm)],[c_0_26,c_0_24]) ).

cnf(c_0_33,plain,
    ( X1 = tail_of(esk6_2(X1,X2))
    | X2 = tail_of(esk6_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,esk5_0) ),
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_36,negated_conjecture,
    on_path(esk3_0,esk5_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(esk6_2(X2,X1))
    | X2 = head_of(esk6_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,esk5_0) ),
    inference(spm,[status(thm)],[c_0_28,c_0_31]) ).

cnf(c_0_41,negated_conjecture,
    on_path(esk4_0,esk5_0),
    inference(spm,[status(thm)],[c_0_32,c_0_21]) ).

cnf(c_0_42,plain,
    ( tail_of(esk6_2(X1,X2)) = X1
    | tail_of(esk6_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(esk3_0)),
    inference(spm,[status(thm)],[c_0_35,c_0_36]) ).

fof(c_0_44,plain,
    ! [X56,X57,X58,X59,X60,X61] :
      ( ( ~ sequential(X59,X60)
        | ~ on_path(X59,X56)
        | ~ on_path(X60,X56)
        | precedes(X59,X60,X56)
        | ~ path(X57,X58,X56) )
      & ( ~ sequential(X59,X61)
        | ~ precedes(X61,X60,X56)
        | ~ on_path(X59,X56)
        | ~ on_path(X60,X56)
        | precedes(X59,X60,X56)
        | ~ path(X57,X58,X56) ) ),
    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,
    ! [X23,X24,X25,X26,X27,X28] :
      ( ( tail_of(X28) != tail_of(X25)
        | head_of(X28) != head_of(X26)
        | ~ shortest_path(X23,X24,X27)
        | ~ precedes(X25,X26,X27) )
      & ( ~ precedes(X26,X25,X27)
        | ~ shortest_path(X23,X24,X27)
        | ~ precedes(X25,X26,X27) ) ),
    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(esk6_2(X1,X2)) = X2
    | head_of(esk6_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(esk4_0)),
    inference(spm,[status(thm)],[c_0_40,c_0_41]) ).

cnf(c_0_48,plain,
    ( X1 = tail_of(esk6_2(X1,X2))
    | X1 = head_of(esk6_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(esk6_2(X1,tail_of(esk3_0))) = tail_of(esk3_0)
    | tail_of(esk6_2(X1,tail_of(esk3_0))) = X1
    | X1 = tail_of(esk3_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(esk6_2(head_of(esk4_0),X1)) = head_of(esk4_0)
    | head_of(esk6_2(head_of(esk4_0),X1)) = X1
    | X1 = head_of(esk4_0)
    | ~ vertex(X1) ),
    inference(spm,[status(thm)],[c_0_46,c_0_47]) ).

cnf(c_0_54,plain,
    ( tail_of(esk6_2(X1,X2)) = X1
    | head_of(esk6_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(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = head_of(esk4_0)
    | tail_of(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = tail_of(esk3_0)
    | tail_of(esk3_0) = head_of(esk4_0) ),
    inference(spm,[status(thm)],[c_0_49,c_0_47]) ).

cnf(c_0_56,negated_conjecture,
    ( precedes(X1,X2,esk5_0)
    | ~ sequential(X1,X2)
    | ~ on_path(X2,esk5_0)
    | ~ on_path(X1,esk5_0) ),
    inference(spm,[status(thm)],[c_0_50,c_0_21]) ).

cnf(c_0_57,negated_conjecture,
    ( ~ precedes(X1,X2,esk5_0)
    | ~ precedes(X2,X1,esk5_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,esk5_0) ),
    inference(spm,[status(thm)],[c_0_52,c_0_16]) ).

cnf(c_0_61,plain,
    ( X1 = head_of(esk6_2(X2,X1))
    | X1 = tail_of(esk6_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(esk4_0)
    | head_of(X1) != tail_of(esk3_0) ),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_63,negated_conjecture,
    ( head_of(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = tail_of(esk3_0)
    | head_of(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = head_of(esk4_0)
    | tail_of(esk3_0) = head_of(esk4_0) ),
    inference(spm,[status(thm)],[c_0_53,c_0_43]) ).

cnf(c_0_64,negated_conjecture,
    ( tail_of(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = head_of(esk4_0)
    | head_of(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = head_of(esk4_0)
    | tail_of(esk3_0) = head_of(esk4_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(esk6_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,esk3_0,esk5_0)
    | ~ sequential(X1,esk3_0)
    | ~ on_path(X1,esk5_0) ),
    inference(spm,[status(thm)],[c_0_56,c_0_36]) ).

cnf(c_0_67,negated_conjecture,
    ~ precedes(esk4_0,esk3_0,esk5_0),
    inference(spm,[status(thm)],[c_0_57,c_0_24]) ).

fof(c_0_68,plain,
    ! [X21,X22] :
      ( ( edge(X21)
        | ~ sequential(X21,X22) )
      & ( edge(X22)
        | ~ sequential(X21,X22) )
      & ( X21 != X22
        | ~ sequential(X21,X22) )
      & ( head_of(X21) = tail_of(X22)
        | ~ sequential(X21,X22) )
      & ( ~ edge(X21)
        | ~ edge(X22)
        | X21 = X22
        | head_of(X21) != tail_of(X22)
        | sequential(X21,X22) ) ),
    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,esk5_0) ),
    inference(spm,[status(thm)],[c_0_59,c_0_21]) ).

cnf(c_0_70,negated_conjecture,
    ( head_of(X1) != head_of(esk4_0)
    | tail_of(X1) != tail_of(esk3_0) ),
    inference(spm,[status(thm)],[c_0_60,c_0_24]) ).

cnf(c_0_71,plain,
    ( tail_of(esk6_2(X1,X2)) = X2
    | head_of(esk6_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(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = head_of(esk4_0)
    | tail_of(esk3_0) = head_of(esk4_0)
    | ~ edge(esk6_2(head_of(esk4_0),tail_of(esk3_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(esk6_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(esk4_0,esk3_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(esk3_0),
    inference(spm,[status(thm)],[c_0_69,c_0_36]) ).

cnf(c_0_77,negated_conjecture,
    edge(esk4_0),
    inference(spm,[status(thm)],[c_0_69,c_0_41]) ).

cnf(c_0_78,negated_conjecture,
    ( head_of(esk6_2(X1,X2)) = X2
    | X2 = X1
    | head_of(esk6_2(X1,X2)) != head_of(esk4_0)
    | X2 != tail_of(esk3_0)
    | ~ vertex(X1)
    | ~ vertex(X2) ),
    inference(spm,[status(thm)],[c_0_70,c_0_71]) ).

cnf(c_0_79,negated_conjecture,
    ( head_of(esk6_2(head_of(esk4_0),tail_of(esk3_0))) = head_of(esk4_0)
    | tail_of(esk3_0) = head_of(esk4_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,
    ( esk4_0 = esk3_0
    | tail_of(esk3_0) != head_of(esk4_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(esk3_0) = head_of(esk4_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(esk4_0) != head_of(esk3_0),
    inference(er,[status(thm)],[c_0_70]) ).

cnf(c_0_83,negated_conjecture,
    esk4_0 = esk3_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
% 0.04/0.12  % Problem    : GRA007+2 : TPTP v8.2.0. Bugfixed v3.2.0.
% 0.04/0.13  % Command    : run_E %s %d THM
% 0.14/0.37  % Computer : n025.cluster.edu
% 0.14/0.37  % Model    : x86_64 x86_64
% 0.14/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.37  % Memory   : 8042.1875MB
% 0.14/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.37  % CPULimit   : 300
% 0.14/0.37  % WCLimit    : 300
% 0.14/0.37  % DateTime   : Sat May 18 12:53:53 EDT 2024
% 0.14/0.37  % CPUTime    : 
% 0.23/0.49  Running first-order theorem proving
% 0.23/0.49  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/benchmark/theBenchmark.p
% 2.17/0.76  # Version: 3.1.0
% 2.17/0.76  # Preprocessing class: FSMSSMSSSSSNFFN.
% 2.17/0.76  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 2.17/0.76  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 2.17/0.76  # Starting new_bool_3 with 300s (1) cores
% 2.17/0.76  # Starting new_bool_1 with 300s (1) cores
% 2.17/0.76  # Starting sh5l with 300s (1) cores
% 2.17/0.76  # sh5l with pid 30951 completed with status 0
% 2.17/0.76  # Result found by sh5l
% 2.17/0.76  # Preprocessing class: FSMSSMSSSSSNFFN.
% 2.17/0.76  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 2.17/0.76  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 2.17/0.76  # Starting new_bool_3 with 300s (1) cores
% 2.17/0.76  # Starting new_bool_1 with 300s (1) cores
% 2.17/0.76  # Starting sh5l with 300s (1) cores
% 2.17/0.76  # SinE strategy is gf500_gu_R04_F100_L20000
% 2.17/0.76  # Search class: FGHSF-FFMS32-SFFFFFNN
% 2.17/0.76  # Scheduled 5 strats onto 1 cores with 300 seconds (300 total)
% 2.17/0.76  # Starting G-E--_301_C18_F1_URBAN_S0Y with 181s (1) cores
% 2.17/0.76  # G-E--_301_C18_F1_URBAN_S0Y with pid 30959 completed with status 0
% 2.17/0.76  # Result found by G-E--_301_C18_F1_URBAN_S0Y
% 2.17/0.76  # Preprocessing class: FSMSSMSSSSSNFFN.
% 2.17/0.76  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 2.17/0.76  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 2.17/0.76  # Starting new_bool_3 with 300s (1) cores
% 2.17/0.76  # Starting new_bool_1 with 300s (1) cores
% 2.17/0.76  # Starting sh5l with 300s (1) cores
% 2.17/0.76  # SinE strategy is gf500_gu_R04_F100_L20000
% 2.17/0.76  # Search class: FGHSF-FFMS32-SFFFFFNN
% 2.17/0.76  # Scheduled 5 strats onto 1 cores with 300 seconds (300 total)
% 2.17/0.76  # Starting G-E--_301_C18_F1_URBAN_S0Y with 181s (1) cores
% 2.17/0.76  # Preprocessing time       : 0.002 s
% 2.17/0.76  
% 2.17/0.76  # Proof found!
% 2.17/0.76  # SZS status Theorem
% 2.17/0.76  # SZS output start CNFRefutation
% See solution above
% 2.17/0.76  # Parsed axioms                        : 19
% 2.17/0.76  # Removed by relevancy pruning/SinE    : 0
% 2.17/0.76  # Initial clauses                      : 64
% 2.17/0.76  # Removed in clause preprocessing      : 1
% 2.17/0.76  # Initial clauses in saturation        : 63
% 2.17/0.76  # Processed clauses                    : 975
% 2.17/0.76  # ...of these trivial                  : 79
% 2.17/0.76  # ...subsumed                          : 203
% 2.17/0.76  # ...remaining for further processing  : 693
% 2.17/0.76  # Other redundant clauses eliminated   : 71
% 2.17/0.76  # Clauses deleted for lack of memory   : 0
% 2.17/0.76  # Backward-subsumed                    : 37
% 2.17/0.76  # Backward-rewritten                   : 313
% 2.17/0.76  # Generated clauses                    : 6287
% 2.17/0.76  # ...of the previous two non-redundant : 5891
% 2.17/0.76  # ...aggressively subsumed             : 0
% 2.17/0.76  # Contextual simplify-reflections      : 66
% 2.17/0.76  # Paramodulations                      : 6121
% 2.17/0.76  # Factorizations                       : 54
% 2.17/0.76  # NegExts                              : 0
% 2.17/0.76  # Equation resolutions                 : 112
% 2.17/0.76  # Disequality decompositions           : 0
% 2.17/0.76  # Total rewrite steps                  : 1588
% 2.17/0.76  # ...of those cached                   : 1571
% 2.17/0.76  # Propositional unsat checks           : 0
% 2.17/0.76  #    Propositional check models        : 0
% 2.17/0.76  #    Propositional check unsatisfiable : 0
% 2.17/0.76  #    Propositional clauses             : 0
% 2.17/0.76  #    Propositional clauses after purity: 0
% 2.17/0.76  #    Propositional unsat core size     : 0
% 2.17/0.76  #    Propositional preprocessing time  : 0.000
% 2.17/0.76  #    Propositional encoding time       : 0.000
% 2.17/0.76  #    Propositional solver time         : 0.000
% 2.17/0.76  #    Success case prop preproc time    : 0.000
% 2.17/0.76  #    Success case prop encoding time   : 0.000
% 2.17/0.76  #    Success case prop solver time     : 0.000
% 2.17/0.76  # Current number of processed clauses  : 341
% 2.17/0.76  #    Positive orientable unit clauses  : 15
% 2.17/0.76  #    Positive unorientable unit clauses: 0
% 2.17/0.76  #    Negative unit clauses             : 2
% 2.17/0.76  #    Non-unit-clauses                  : 324
% 2.17/0.76  # Current number of unprocessed clauses: 4809
% 2.17/0.76  # ...number of literals in the above   : 34215
% 2.17/0.76  # Current number of archived formulas  : 0
% 2.17/0.76  # Current number of archived clauses   : 350
% 2.17/0.76  # Clause-clause subsumption calls (NU) : 36531
% 2.17/0.76  # Rec. Clause-clause subsumption calls : 6415
% 2.17/0.76  # Non-unit clause-clause subsumptions  : 288
% 2.17/0.76  # Unit Clause-clause subsumption calls : 618
% 2.17/0.76  # Rewrite failures with RHS unbound    : 0
% 2.17/0.76  # BW rewrite match attempts            : 4
% 2.17/0.76  # BW rewrite match successes           : 4
% 2.17/0.76  # Condensation attempts                : 0
% 2.17/0.76  # Condensation successes               : 0
% 2.17/0.76  # Termbank termtop insertions          : 168313
% 2.17/0.76  # Search garbage collected termcells   : 1276
% 2.17/0.76  
% 2.17/0.76  # -------------------------------------------------
% 2.17/0.76  # User time                : 0.250 s
% 2.17/0.76  # System time              : 0.007 s
% 2.17/0.76  # Total time               : 0.256 s
% 2.17/0.76  # Maximum resident set size: 1996 pages
% 2.17/0.76  
% 2.17/0.76  # -------------------------------------------------
% 2.17/0.76  # User time                : 0.252 s
% 2.17/0.76  # System time              : 0.008 s
% 2.17/0.76  # Total time               : 0.260 s
% 2.17/0.76  # Maximum resident set size: 1756 pages
% 2.17/0.76  % E---3.1 exiting
% 2.17/0.76  % E exiting
%------------------------------------------------------------------------------