TSTP Solution File: GRA009+2 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : GRA009+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s

% Computer : n028.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 : Thu Aug 31 00:00:07 EDT 2023

% Result   : Theorem 1.94s 2.02s
% Output   : CNFRefutation 1.94s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :   47
% Syntax   : Number of formulae    :  132 (  17 unt;  36 typ;   0 def)
%            Number of atoms       :  440 ( 138 equ)
%            Maximal formula atoms :   37 (   4 avg)
%            Number of connectives :  560 ( 216   ~; 244   |;  74   &)
%                                         (   4 <=>;  20  =>;   1  <=;   1 <~>)
%            Maximal formula depth :   17 (   6 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   51 (  24   >;  27   *;   0   +;   0  <<)
%            Number of predicates  :   13 (  11 usr;   2 prp; 0-3 aty)
%            Number of functors    :   25 (  25 usr;  11 con; 0-4 aty)
%            Number of variables   :  199 (  13 sgn;  90   !;   9   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
tff(decl_22,type,
    edge: $i > $o ).

tff(decl_23,type,
    head_of: $i > $i ).

tff(decl_24,type,
    tail_of: $i > $i ).

tff(decl_25,type,
    vertex: $i > $o ).

tff(decl_26,type,
    complete: $o ).

tff(decl_27,type,
    path: ( $i * $i * $i ) > $o ).

tff(decl_28,type,
    empty: $i ).

tff(decl_29,type,
    path_cons: ( $i * $i ) > $i ).

tff(decl_30,type,
    on_path: ( $i * $i ) > $o ).

tff(decl_31,type,
    in_path: ( $i * $i ) > $o ).

tff(decl_32,type,
    sequential: ( $i * $i ) > $o ).

tff(decl_33,type,
    precedes: ( $i * $i * $i ) > $o ).

tff(decl_34,type,
    shortest_path: ( $i * $i * $i ) > $o ).

tff(decl_35,type,
    length_of: $i > $i ).

tff(decl_36,type,
    less_or_equal: ( $i * $i ) > $o ).

tff(decl_37,type,
    triangle: ( $i * $i * $i ) > $o ).

tff(decl_38,type,
    edges: $i ).

tff(decl_39,type,
    number_of_in: ( $i * $i ) > $i ).

tff(decl_40,type,
    sequential_pairs: $i ).

tff(decl_41,type,
    n1: $i ).

tff(decl_42,type,
    minus: ( $i * $i ) > $i ).

tff(decl_43,type,
    triangles: $i ).

tff(decl_44,type,
    graph: $i ).

tff(decl_45,type,
    esk1_2: ( $i * $i ) > $i ).

tff(decl_46,type,
    esk2_3: ( $i * $i * $i ) > $i ).

tff(decl_47,type,
    esk3_3: ( $i * $i * $i ) > $i ).

tff(decl_48,type,
    esk4_4: ( $i * $i * $i * $i ) > $i ).

tff(decl_49,type,
    esk5_3: ( $i * $i * $i ) > $i ).

tff(decl_50,type,
    esk6_3: ( $i * $i * $i ) > $i ).

tff(decl_51,type,
    esk7_1: $i > $i ).

tff(decl_52,type,
    esk8_1: $i > $i ).

tff(decl_53,type,
    esk9_0: $i ).

tff(decl_54,type,
    esk10_0: $i ).

tff(decl_55,type,
    esk11_0: $i ).

tff(decl_56,type,
    esk12_0: $i ).

tff(decl_57,type,
    esk13_0: $i ).

fof(complete_means_path_means_stuff_means_triangles,conjecture,
    ( complete
   => ! [X4,X2,X3] :
        ( shortest_path(X2,X3,X4)
       => ! [X7,X8] :
            ( ( on_path(X7,X4)
              & on_path(X8,X4)
              & sequential(X7,X8) )
           => ? [X9] : triangle(X7,X8,X9) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',complete_means_path_means_stuff_means_triangles) ).

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(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(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(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(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(edge_ends_are_vertices,axiom,
    ! [X1] :
      ( edge(X1)
     => ( vertex(head_of(X1))
        & vertex(tail_of(X1)) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',edge_ends_are_vertices) ).

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(triangle_defn,axiom,
    ! [X7,X8,X9] :
      ( triangle(X7,X8,X9)
    <=> ( edge(X7)
        & edge(X8)
        & edge(X9)
        & sequential(X7,X8)
        & sequential(X8,X9)
        & sequential(X9,X7) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',triangle_defn) ).

fof(no_loops,axiom,
    ! [X1] :
      ( edge(X1)
     => head_of(X1) != tail_of(X1) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',no_loops) ).

fof(c_0_11,negated_conjecture,
    ~ ( complete
     => ! [X4,X2,X3] :
          ( shortest_path(X2,X3,X4)
         => ! [X7,X8] :
              ( ( on_path(X7,X4)
                & on_path(X8,X4)
                & sequential(X7,X8) )
             => ? [X9] : triangle(X7,X8,X9) ) ) ),
    inference(assume_negation,[status(cth)],[complete_means_path_means_stuff_means_triangles]) ).

fof(c_0_12,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(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[shortest_path_defn])])])])])]) ).

fof(c_0_13,negated_conjecture,
    ! [X89] :
      ( complete
      & shortest_path(esk10_0,esk11_0,esk9_0)
      & on_path(esk12_0,esk9_0)
      & on_path(esk13_0,esk9_0)
      & sequential(esk12_0,esk13_0)
      & ~ triangle(esk12_0,esk13_0,X89) ),
    inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_11])])])]) ).

fof(c_0_14,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]) ).

fof(c_0_15,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(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[in_path_properties])])])]) ).

cnf(c_0_16,plain,
    ( path(X1,X2,X3)
    | ~ shortest_path(X1,X2,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_12]) ).

cnf(c_0_17,negated_conjecture,
    shortest_path(esk10_0,esk11_0,esk9_0),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

fof(c_0_18,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(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[on_path_properties])])]) ).

fof(c_0_19,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(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_14])])])])]) ).

fof(c_0_20,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]) ).

fof(c_0_21,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]) ).

cnf(c_0_22,plain,
    ( vertex(X1)
    | ~ path(X2,X3,X4)
    | ~ in_path(X1,X4) ),
    inference(split_conjunct,[status(thm)],[c_0_15]) ).

cnf(c_0_23,negated_conjecture,
    path(esk10_0,esk11_0,esk9_0),
    inference(spm,[status(thm)],[c_0_16,c_0_17]) ).

cnf(c_0_24,plain,
    ( in_path(head_of(X1),X2)
    | ~ path(X3,X4,X2)
    | ~ on_path(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_25,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_19]) ).

cnf(c_0_26,negated_conjecture,
    complete,
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

fof(c_0_27,plain,
    ! [X14] :
      ( ( vertex(head_of(X14))
        | ~ edge(X14) )
      & ( vertex(tail_of(X14))
        | ~ edge(X14) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[edge_ends_are_vertices])])]) ).

fof(c_0_28,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(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_20])])])]) ).

fof(c_0_29,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(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_21])])])]) ).

cnf(c_0_30,negated_conjecture,
    ( vertex(X1)
    | ~ in_path(X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_22,c_0_23]) ).

cnf(c_0_31,negated_conjecture,
    ( in_path(head_of(X1),esk9_0)
    | ~ on_path(X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_24,c_0_23]) ).

cnf(c_0_32,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_25,c_0_26])]) ).

cnf(c_0_33,plain,
    ( vertex(tail_of(X1))
    | ~ edge(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

fof(c_0_34,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(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[sequential_defn])])]) ).

cnf(c_0_35,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_28]) ).

cnf(c_0_36,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_29]) ).

cnf(c_0_37,negated_conjecture,
    ( vertex(head_of(X1))
    | ~ on_path(X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_30,c_0_31]) ).

cnf(c_0_38,negated_conjecture,
    on_path(esk13_0,esk9_0),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

cnf(c_0_39,plain,
    ( tail_of(esk1_2(X1,tail_of(X2))) = tail_of(X2)
    | tail_of(esk1_2(X1,tail_of(X2))) = X1
    | X1 = tail_of(X2)
    | ~ vertex(X1)
    | ~ edge(X2) ),
    inference(spm,[status(thm)],[c_0_32,c_0_33]) ).

cnf(c_0_40,plain,
    ( vertex(head_of(X1))
    | ~ edge(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

cnf(c_0_41,plain,
    ( edge(X1)
    | ~ sequential(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_42,negated_conjecture,
    sequential(esk12_0,esk13_0),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

fof(c_0_43,plain,
    ! [X67,X68,X69] :
      ( ( edge(X67)
        | ~ triangle(X67,X68,X69) )
      & ( edge(X68)
        | ~ triangle(X67,X68,X69) )
      & ( edge(X69)
        | ~ triangle(X67,X68,X69) )
      & ( sequential(X67,X68)
        | ~ triangle(X67,X68,X69) )
      & ( sequential(X68,X69)
        | ~ triangle(X67,X68,X69) )
      & ( sequential(X69,X67)
        | ~ triangle(X67,X68,X69) )
      & ( ~ edge(X67)
        | ~ edge(X68)
        | ~ edge(X69)
        | ~ sequential(X67,X68)
        | ~ sequential(X68,X69)
        | ~ sequential(X69,X67)
        | triangle(X67,X68,X69) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[triangle_defn])])]) ).

cnf(c_0_44,negated_conjecture,
    ( head_of(X1) != head_of(X2)
    | tail_of(X1) != tail_of(X3)
    | ~ precedes(X3,X2,esk9_0) ),
    inference(spm,[status(thm)],[c_0_35,c_0_17]) ).

cnf(c_0_45,negated_conjecture,
    ( precedes(X1,X2,esk9_0)
    | ~ sequential(X1,X2)
    | ~ on_path(X2,esk9_0)
    | ~ on_path(X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_36,c_0_23]) ).

cnf(c_0_46,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_19]) ).

cnf(c_0_47,negated_conjecture,
    vertex(head_of(esk13_0)),
    inference(spm,[status(thm)],[c_0_37,c_0_38]) ).

cnf(c_0_48,plain,
    ( tail_of(esk1_2(head_of(X1),tail_of(X2))) = head_of(X1)
    | tail_of(esk1_2(head_of(X1),tail_of(X2))) = tail_of(X2)
    | head_of(X1) = tail_of(X2)
    | ~ edge(X2)
    | ~ edge(X1) ),
    inference(spm,[status(thm)],[c_0_39,c_0_40]) ).

cnf(c_0_49,negated_conjecture,
    edge(esk12_0),
    inference(spm,[status(thm)],[c_0_41,c_0_42]) ).

cnf(c_0_50,plain,
    ( edge(X1)
    | ~ sequential(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_51,plain,
    ( triangle(X1,X2,X3)
    | ~ edge(X1)
    | ~ edge(X2)
    | ~ edge(X3)
    | ~ sequential(X1,X2)
    | ~ sequential(X2,X3)
    | ~ sequential(X3,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_43]) ).

cnf(c_0_52,plain,
    ( edge(esk1_2(X1,X2))
    | X1 = X2
    | ~ vertex(X1)
    | ~ vertex(X2)
    | ~ complete ),
    inference(split_conjunct,[status(thm)],[c_0_19]) ).

cnf(c_0_53,negated_conjecture,
    ( head_of(X1) != head_of(X2)
    | tail_of(X1) != tail_of(X3)
    | ~ sequential(X3,X2)
    | ~ on_path(X2,esk9_0)
    | ~ on_path(X3,esk9_0) ),
    inference(spm,[status(thm)],[c_0_44,c_0_45]) ).

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_46,c_0_26])]) ).

cnf(c_0_55,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk13_0),tail_of(X1))) = head_of(esk13_0)
    | tail_of(esk1_2(head_of(esk13_0),tail_of(X1))) = tail_of(X1)
    | tail_of(X1) = head_of(esk13_0)
    | ~ edge(X1) ),
    inference(spm,[status(thm)],[c_0_39,c_0_47]) ).

cnf(c_0_56,negated_conjecture,
    ( tail_of(esk1_2(head_of(X1),tail_of(esk12_0))) = tail_of(esk12_0)
    | tail_of(esk1_2(head_of(X1),tail_of(esk12_0))) = head_of(X1)
    | head_of(X1) = tail_of(esk12_0)
    | ~ edge(X1) ),
    inference(spm,[status(thm)],[c_0_48,c_0_49]) ).

cnf(c_0_57,negated_conjecture,
    edge(esk13_0),
    inference(spm,[status(thm)],[c_0_50,c_0_42]) ).

cnf(c_0_58,negated_conjecture,
    ~ triangle(esk12_0,esk13_0,X1),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

cnf(c_0_59,plain,
    ( triangle(X1,X2,X3)
    | ~ sequential(X3,X1)
    | ~ sequential(X2,X3)
    | ~ sequential(X1,X2) ),
    inference(csr,[status(thm)],[inference(csr,[status(thm)],[inference(csr,[status(thm)],[c_0_51,c_0_41]),c_0_41]),c_0_41]) ).

cnf(c_0_60,plain,
    ( X1 = X2
    | sequential(X1,X2)
    | ~ edge(X1)
    | ~ edge(X2)
    | head_of(X1) != tail_of(X2) ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_61,plain,
    ( X1 = X2
    | edge(esk1_2(X1,X2))
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_52,c_0_26])]) ).

cnf(c_0_62,negated_conjecture,
    ( head_of(X1) != head_of(esk13_0)
    | tail_of(X1) != tail_of(X2)
    | ~ sequential(X2,esk13_0)
    | ~ on_path(X2,esk9_0) ),
    inference(spm,[status(thm)],[c_0_53,c_0_38]) ).

cnf(c_0_63,negated_conjecture,
    on_path(esk12_0,esk9_0),
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

cnf(c_0_64,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk13_0),tail_of(X1))) = head_of(esk13_0)
    | head_of(esk1_2(head_of(esk13_0),tail_of(X1))) = head_of(esk13_0)
    | tail_of(X1) = head_of(esk13_0)
    | ~ edge(X1) ),
    inference(csr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_54,c_0_55]),c_0_47])]),c_0_33]) ).

cnf(c_0_65,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk13_0),tail_of(esk12_0))) = head_of(esk13_0)
    | tail_of(esk1_2(head_of(esk13_0),tail_of(esk12_0))) = tail_of(esk12_0)
    | tail_of(esk12_0) = head_of(esk13_0) ),
    inference(spm,[status(thm)],[c_0_56,c_0_57]) ).

cnf(c_0_66,negated_conjecture,
    ( ~ sequential(X1,esk12_0)
    | ~ sequential(esk13_0,X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_58,c_0_59]),c_0_42])]) ).

cnf(c_0_67,plain,
    ( esk1_2(X1,X2) = X3
    | X1 = X2
    | sequential(esk1_2(X1,X2),X3)
    | tail_of(X3) != head_of(esk1_2(X1,X2))
    | ~ vertex(X2)
    | ~ vertex(X1)
    | ~ edge(X3) ),
    inference(spm,[status(thm)],[c_0_60,c_0_61]) ).

cnf(c_0_68,negated_conjecture,
    ( esk13_0 = X1
    | sequential(esk13_0,X1)
    | tail_of(X1) != head_of(esk13_0)
    | ~ edge(X1) ),
    inference(spm,[status(thm)],[c_0_60,c_0_57]) ).

cnf(c_0_69,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_19]) ).

cnf(c_0_70,negated_conjecture,
    ( head_of(X1) != head_of(esk13_0)
    | tail_of(X1) != tail_of(esk12_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_62,c_0_63]),c_0_42])]) ).

cnf(c_0_71,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk13_0),tail_of(esk12_0))) = head_of(esk13_0)
    | head_of(esk1_2(head_of(esk13_0),tail_of(esk12_0))) = head_of(esk13_0)
    | tail_of(esk12_0) = head_of(esk13_0) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_64,c_0_65]),c_0_49])]) ).

cnf(c_0_72,negated_conjecture,
    ( esk1_2(X1,X2) = esk12_0
    | X1 = X2
    | head_of(esk1_2(X1,X2)) != tail_of(esk12_0)
    | ~ sequential(esk13_0,esk1_2(X1,X2))
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_66,c_0_67]),c_0_49])]) ).

cnf(c_0_73,negated_conjecture,
    ( head_of(esk1_2(X1,X2)) = X1
    | esk1_2(X1,X2) = esk13_0
    | X1 = X2
    | sequential(esk13_0,esk1_2(X1,X2))
    | X1 != head_of(esk13_0)
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_68,c_0_54]),c_0_61]) ).

cnf(c_0_74,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_69,c_0_26])]) ).

cnf(c_0_75,negated_conjecture,
    ( tail_of(esk1_2(head_of(esk13_0),tail_of(esk12_0))) = head_of(esk13_0)
    | tail_of(esk12_0) = head_of(esk13_0) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_70,c_0_65]),c_0_71]) ).

cnf(c_0_76,plain,
    ( head_of(X1) = tail_of(X2)
    | ~ sequential(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_34]) ).

cnf(c_0_77,plain,
    ( ~ precedes(X1,X2,X3)
    | ~ shortest_path(X4,X5,X3)
    | ~ precedes(X2,X1,X3) ),
    inference(split_conjunct,[status(thm)],[c_0_28]) ).

cnf(c_0_78,negated_conjecture,
    ( head_of(esk1_2(X1,X2)) = X1
    | esk1_2(X1,X2) = esk13_0
    | esk1_2(X1,X2) = esk12_0
    | X1 = X2
    | head_of(esk1_2(X1,X2)) != tail_of(esk12_0)
    | X1 != head_of(esk13_0)
    | ~ vertex(X2)
    | ~ vertex(X1) ),
    inference(spm,[status(thm)],[c_0_72,c_0_73]) ).

cnf(c_0_79,negated_conjecture,
    ( head_of(esk1_2(head_of(esk13_0),tail_of(esk12_0))) = tail_of(esk12_0)
    | tail_of(esk12_0) = head_of(esk13_0)
    | ~ vertex(tail_of(esk12_0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_74,c_0_75]),c_0_47])]) ).

cnf(c_0_80,negated_conjecture,
    tail_of(esk13_0) = head_of(esk12_0),
    inference(spm,[status(thm)],[c_0_76,c_0_42]) ).

fof(c_0_81,plain,
    ! [X13] :
      ( ~ edge(X13)
      | head_of(X13) != tail_of(X13) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[no_loops])]) ).

cnf(c_0_82,negated_conjecture,
    ( ~ precedes(X1,X2,esk9_0)
    | ~ precedes(X2,X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_77,c_0_17]) ).

cnf(c_0_83,negated_conjecture,
    ( esk1_2(head_of(esk13_0),tail_of(esk12_0)) = esk12_0
    | esk1_2(head_of(esk13_0),tail_of(esk12_0)) = esk13_0
    | tail_of(esk12_0) = head_of(esk13_0)
    | ~ vertex(tail_of(esk12_0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_78,c_0_79]),c_0_47])]) ).

cnf(c_0_84,negated_conjecture,
    tail_of(esk12_0) != head_of(esk12_0),
    inference(spm,[status(thm)],[c_0_70,c_0_80]) ).

cnf(c_0_85,plain,
    ( ~ edge(X1)
    | head_of(X1) != tail_of(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_81]) ).

cnf(c_0_86,negated_conjecture,
    ( ~ precedes(X1,X2,esk9_0)
    | ~ sequential(X2,X1)
    | ~ on_path(X1,esk9_0)
    | ~ on_path(X2,esk9_0) ),
    inference(spm,[status(thm)],[c_0_82,c_0_45]) ).

cnf(c_0_87,negated_conjecture,
    ( esk1_2(head_of(esk13_0),tail_of(esk12_0)) = esk12_0
    | tail_of(esk12_0) = head_of(esk13_0)
    | ~ vertex(tail_of(esk12_0)) ),
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_74,c_0_83]),c_0_80]),c_0_47])]),c_0_84]) ).

cnf(c_0_88,negated_conjecture,
    head_of(esk13_0) != head_of(esk12_0),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_85,c_0_80]),c_0_57])]) ).

cnf(c_0_89,negated_conjecture,
    ( ~ sequential(X1,X2)
    | ~ sequential(X2,X1)
    | ~ on_path(X2,esk9_0)
    | ~ on_path(X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_86,c_0_45]) ).

cnf(c_0_90,negated_conjecture,
    ( tail_of(esk12_0) = head_of(esk13_0)
    | ~ vertex(tail_of(esk12_0)) ),
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_54,c_0_87]),c_0_47])]),c_0_88]) ).

cnf(c_0_91,negated_conjecture,
    ( ~ sequential(X1,esk13_0)
    | ~ sequential(esk13_0,X1)
    | ~ on_path(X1,esk9_0) ),
    inference(spm,[status(thm)],[c_0_89,c_0_38]) ).

cnf(c_0_92,negated_conjecture,
    tail_of(esk12_0) = head_of(esk13_0),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_90,c_0_33]),c_0_49])]) ).

cnf(c_0_93,negated_conjecture,
    ~ sequential(esk13_0,esk12_0),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_91,c_0_63]),c_0_42])]) ).

cnf(c_0_94,negated_conjecture,
    esk13_0 = esk12_0,
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_68,c_0_92]),c_0_49])]),c_0_93]) ).

cnf(c_0_95,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_88,c_0_94])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : GRA009+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% 0.00/0.13  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.13/0.34  % Computer : n028.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit   : 300
% 0.13/0.34  % WCLimit    : 300
% 0.13/0.34  % DateTime   : Sun Aug 27 03:26:53 EDT 2023
% 0.20/0.34  % CPUTime  : 
% 0.20/0.58  start to proof: theBenchmark
% 1.94/2.02  % Version  : CSE_E---1.5
% 1.94/2.02  % Problem  : theBenchmark.p
% 1.94/2.02  % Proof found
% 1.94/2.02  % SZS status Theorem for theBenchmark.p
% 1.94/2.02  % SZS output start Proof
% See solution above
% 1.94/2.03  % Total time : 1.437000 s
% 1.94/2.03  % SZS output end Proof
% 1.94/2.03  % Total time : 1.441000 s
%------------------------------------------------------------------------------