TSTP Solution File: GRA007+2 by iProver---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : GRA007+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n002.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 : Fri May  3 02:19:23 EDT 2024

% Result   : Theorem 20.43s 3.67s
% Output   : CNFRefutation 20.43s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   21
% Syntax   : Number of formulae    :  200 (  26 unt;   0 def)
%            Number of atoms       :  829 ( 283 equ)
%            Maximal formula atoms :   18 (   4 avg)
%            Number of connectives : 1032 ( 403   ~; 419   |; 165   &)
%                                         (   5 <=>;  33  =>;   0  <=;   7 <~>)
%            Maximal formula depth :   13 (   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; 0-3 aty)
%            Number of variables   :  494 (  50 sgn 261   !;  45   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0] :
      ( edge(X0)
     => head_of(X0) != tail_of(X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',no_loops) ).

fof(f2,axiom,
    ! [X0] :
      ( edge(X0)
     => ( vertex(tail_of(X0))
        & vertex(head_of(X0)) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',edge_ends_are_vertices) ).

fof(f3,axiom,
    ( complete
   => ! [X1,X2] :
        ( ( X1 != X2
          & vertex(X2)
          & vertex(X1) )
       => ? [X0] :
            ( ( ( tail_of(X0) = X2
                & head_of(X0) = X1 )
            <~> ( tail_of(X0) = X1
                & head_of(X0) = X2 ) )
            & edge(X0) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',complete_properties) ).

fof(f6,axiom,
    ! [X1,X2,X3,X0] :
      ( ( on_path(X0,X3)
        & path(X1,X2,X3) )
     => ( in_path(tail_of(X0),X3)
        & in_path(head_of(X0),X3)
        & edge(X0) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',on_path_properties) ).

fof(f7,axiom,
    ! [X1,X2,X3,X5] :
      ( ( in_path(X5,X3)
        & path(X1,X2,X3) )
     => ( ? [X0] :
            ( ( tail_of(X0) = X5
              | head_of(X0) = X5 )
            & on_path(X0,X3) )
        & vertex(X5) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',in_path_properties) ).

fof(f8,axiom,
    ! [X6,X7] :
      ( sequential(X6,X7)
    <=> ( head_of(X6) = tail_of(X7)
        & X6 != X7
        & edge(X7)
        & edge(X6) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',sequential_defn) ).

fof(f9,axiom,
    ! [X3,X1,X2] :
      ( path(X1,X2,X3)
     => ! [X6,X7] :
          ( ( ( ? [X8] :
                  ( precedes(X8,X7,X3)
                  & sequential(X6,X8) )
              | sequential(X6,X7) )
            & on_path(X7,X3)
            & on_path(X6,X3) )
         => precedes(X6,X7,X3) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',precedes_defn) ).

fof(f10,axiom,
    ! [X3,X1,X2] :
      ( path(X1,X2,X3)
     => ! [X6,X7] :
          ( precedes(X6,X7,X3)
         => ( ( sequential(X6,X7)
            <~> ? [X8] :
                  ( precedes(X8,X7,X3)
                  & sequential(X6,X8) ) )
            & on_path(X7,X3)
            & on_path(X6,X3) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',precedes_properties) ).

fof(f11,axiom,
    ! [X1,X2,X9] :
      ( shortest_path(X1,X2,X9)
    <=> ( ! [X3] :
            ( path(X1,X2,X3)
           => less_or_equal(length_of(X9),length_of(X3)) )
        & X1 != X2
        & path(X1,X2,X9) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',shortest_path_defn) ).

fof(f12,axiom,
    ! [X1,X2,X6,X7,X3] :
      ( ( precedes(X6,X7,X3)
        & shortest_path(X1,X2,X3) )
     => ( ~ precedes(X7,X6,X3)
        & ~ ? [X8] :
              ( head_of(X8) = head_of(X7)
              & tail_of(X8) = tail_of(X6) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',shortest_path_properties) ).

fof(f19,conjecture,
    ( complete
   => ! [X1,X2,X6,X7,X3] :
        ( ( precedes(X6,X7,X3)
          & shortest_path(X1,X2,X3) )
       => ? [X8] :
            ( tail_of(X6) = head_of(X8)
            & tail_of(X8) = head_of(X7)
            & edge(X8) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',back_edge) ).

fof(f20,negated_conjecture,
    ~ ( complete
     => ! [X1,X2,X6,X7,X3] :
          ( ( precedes(X6,X7,X3)
            & shortest_path(X1,X2,X3) )
         => ? [X8] :
              ( tail_of(X6) = head_of(X8)
              & tail_of(X8) = head_of(X7)
              & edge(X8) ) ) ),
    inference(negated_conjecture,[],[f19]) ).

fof(f21,plain,
    ( complete
   => ! [X0,X1] :
        ( ( X0 != X1
          & vertex(X1)
          & vertex(X0) )
       => ? [X2] :
            ( ( ( tail_of(X2) = X1
                & head_of(X2) = X0 )
            <~> ( tail_of(X2) = X0
                & head_of(X2) = X1 ) )
            & edge(X2) ) ) ),
    inference(rectify,[],[f3]) ).

fof(f24,plain,
    ! [X0,X1,X2,X3] :
      ( ( on_path(X3,X2)
        & path(X0,X1,X2) )
     => ( in_path(tail_of(X3),X2)
        & in_path(head_of(X3),X2)
        & edge(X3) ) ),
    inference(rectify,[],[f6]) ).

fof(f25,plain,
    ! [X0,X1,X2,X3] :
      ( ( in_path(X3,X2)
        & path(X0,X1,X2) )
     => ( ? [X4] :
            ( ( tail_of(X4) = X3
              | head_of(X4) = X3 )
            & on_path(X4,X2) )
        & vertex(X3) ) ),
    inference(rectify,[],[f7]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( sequential(X0,X1)
    <=> ( head_of(X0) = tail_of(X1)
        & X0 != X1
        & edge(X1)
        & edge(X0) ) ),
    inference(rectify,[],[f8]) ).

fof(f27,plain,
    ! [X0,X1,X2] :
      ( path(X1,X2,X0)
     => ! [X3,X4] :
          ( ( ( ? [X5] :
                  ( precedes(X5,X4,X0)
                  & sequential(X3,X5) )
              | sequential(X3,X4) )
            & on_path(X4,X0)
            & on_path(X3,X0) )
         => precedes(X3,X4,X0) ) ),
    inference(rectify,[],[f9]) ).

fof(f28,plain,
    ! [X0,X1,X2] :
      ( path(X1,X2,X0)
     => ! [X3,X4] :
          ( precedes(X3,X4,X0)
         => ( ( sequential(X3,X4)
            <~> ? [X5] :
                  ( precedes(X5,X4,X0)
                  & sequential(X3,X5) ) )
            & on_path(X4,X0)
            & on_path(X3,X0) ) ) ),
    inference(rectify,[],[f10]) ).

fof(f29,plain,
    ! [X0,X1,X2] :
      ( shortest_path(X0,X1,X2)
    <=> ( ! [X3] :
            ( path(X0,X1,X3)
           => less_or_equal(length_of(X2),length_of(X3)) )
        & X0 != X1
        & path(X0,X1,X2) ) ),
    inference(rectify,[],[f11]) ).

fof(f30,plain,
    ! [X0,X1,X2,X3,X4] :
      ( ( precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4) )
     => ( ~ precedes(X3,X2,X4)
        & ~ ? [X5] :
              ( head_of(X3) = head_of(X5)
              & tail_of(X2) = tail_of(X5) ) ) ),
    inference(rectify,[],[f12]) ).

fof(f37,plain,
    ~ ( complete
     => ! [X0,X1,X2,X3,X4] :
          ( ( precedes(X2,X3,X4)
            & shortest_path(X0,X1,X4) )
         => ? [X5] :
              ( tail_of(X2) = head_of(X5)
              & head_of(X3) = tail_of(X5)
              & edge(X5) ) ) ),
    inference(rectify,[],[f20]) ).

fof(f39,plain,
    ! [X0] :
      ( head_of(X0) != tail_of(X0)
      | ~ edge(X0) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f40,plain,
    ! [X0] :
      ( ( vertex(tail_of(X0))
        & vertex(head_of(X0)) )
      | ~ edge(X0) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f41,plain,
    ( ! [X0,X1] :
        ( ? [X2] :
            ( ( ( tail_of(X2) = X1
                & head_of(X2) = X0 )
            <~> ( tail_of(X2) = X0
                & head_of(X2) = X1 ) )
            & edge(X2) )
        | X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0) )
    | ~ complete ),
    inference(ennf_transformation,[],[f21]) ).

fof(f42,plain,
    ( ! [X0,X1] :
        ( ? [X2] :
            ( ( ( tail_of(X2) = X1
                & head_of(X2) = X0 )
            <~> ( tail_of(X2) = X0
                & head_of(X2) = X1 ) )
            & edge(X2) )
        | X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0) )
    | ~ complete ),
    inference(flattening,[],[f41]) ).

fof(f46,plain,
    ! [X0,X1,X2,X3] :
      ( ( in_path(tail_of(X3),X2)
        & in_path(head_of(X3),X2)
        & edge(X3) )
      | ~ on_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(ennf_transformation,[],[f24]) ).

fof(f47,plain,
    ! [X0,X1,X2,X3] :
      ( ( in_path(tail_of(X3),X2)
        & in_path(head_of(X3),X2)
        & edge(X3) )
      | ~ on_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(flattening,[],[f46]) ).

fof(f48,plain,
    ! [X0,X1,X2,X3] :
      ( ( ? [X4] :
            ( ( tail_of(X4) = X3
              | head_of(X4) = X3 )
            & on_path(X4,X2) )
        & vertex(X3) )
      | ~ in_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(ennf_transformation,[],[f25]) ).

fof(f49,plain,
    ! [X0,X1,X2,X3] :
      ( ( ? [X4] :
            ( ( tail_of(X4) = X3
              | head_of(X4) = X3 )
            & on_path(X4,X2) )
        & vertex(X3) )
      | ~ in_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(flattening,[],[f48]) ).

fof(f50,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( precedes(X3,X4,X0)
          | ( ! [X5] :
                ( ~ precedes(X5,X4,X0)
                | ~ sequential(X3,X5) )
            & ~ sequential(X3,X4) )
          | ~ on_path(X4,X0)
          | ~ on_path(X3,X0) )
      | ~ path(X1,X2,X0) ),
    inference(ennf_transformation,[],[f27]) ).

fof(f51,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( precedes(X3,X4,X0)
          | ( ! [X5] :
                ( ~ precedes(X5,X4,X0)
                | ~ sequential(X3,X5) )
            & ~ sequential(X3,X4) )
          | ~ on_path(X4,X0)
          | ~ on_path(X3,X0) )
      | ~ path(X1,X2,X0) ),
    inference(flattening,[],[f50]) ).

fof(f52,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( ( ( sequential(X3,X4)
            <~> ? [X5] :
                  ( precedes(X5,X4,X0)
                  & sequential(X3,X5) ) )
            & on_path(X4,X0)
            & on_path(X3,X0) )
          | ~ precedes(X3,X4,X0) )
      | ~ path(X1,X2,X0) ),
    inference(ennf_transformation,[],[f28]) ).

fof(f53,plain,
    ! [X0,X1,X2] :
      ( shortest_path(X0,X1,X2)
    <=> ( ! [X3] :
            ( less_or_equal(length_of(X2),length_of(X3))
            | ~ path(X0,X1,X3) )
        & X0 != X1
        & path(X0,X1,X2) ) ),
    inference(ennf_transformation,[],[f29]) ).

fof(f54,plain,
    ! [X0,X1,X2,X3,X4] :
      ( ( ~ precedes(X3,X2,X4)
        & ! [X5] :
            ( head_of(X3) != head_of(X5)
            | tail_of(X2) != tail_of(X5) ) )
      | ~ precedes(X2,X3,X4)
      | ~ shortest_path(X0,X1,X4) ),
    inference(ennf_transformation,[],[f30]) ).

fof(f55,plain,
    ! [X0,X1,X2,X3,X4] :
      ( ( ~ precedes(X3,X2,X4)
        & ! [X5] :
            ( head_of(X3) != head_of(X5)
            | tail_of(X2) != tail_of(X5) ) )
      | ~ precedes(X2,X3,X4)
      | ~ shortest_path(X0,X1,X4) ),
    inference(flattening,[],[f54]) ).

fof(f64,plain,
    ( ? [X0,X1,X2,X3,X4] :
        ( ! [X5] :
            ( tail_of(X2) != head_of(X5)
            | head_of(X3) != tail_of(X5)
            | ~ edge(X5) )
        & precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4) )
    & complete ),
    inference(ennf_transformation,[],[f37]) ).

fof(f65,plain,
    ( ? [X0,X1,X2,X3,X4] :
        ( ! [X5] :
            ( tail_of(X2) != head_of(X5)
            | head_of(X3) != tail_of(X5)
            | ~ edge(X5) )
        & precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4) )
    & complete ),
    inference(flattening,[],[f64]) ).

fof(f66,plain,
    ( ! [X0,X1] :
        ( ? [X2] :
            ( ( tail_of(X2) != X0
              | head_of(X2) != X1
              | tail_of(X2) != X1
              | head_of(X2) != X0 )
            & ( ( tail_of(X2) = X0
                & head_of(X2) = X1 )
              | ( tail_of(X2) = X1
                & head_of(X2) = X0 ) )
            & edge(X2) )
        | X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0) )
    | ~ complete ),
    inference(nnf_transformation,[],[f42]) ).

fof(f67,plain,
    ( ! [X0,X1] :
        ( ? [X2] :
            ( ( tail_of(X2) != X0
              | head_of(X2) != X1
              | tail_of(X2) != X1
              | head_of(X2) != X0 )
            & ( ( tail_of(X2) = X0
                & head_of(X2) = X1 )
              | ( tail_of(X2) = X1
                & head_of(X2) = X0 ) )
            & edge(X2) )
        | X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0) )
    | ~ complete ),
    inference(flattening,[],[f66]) ).

fof(f68,plain,
    ! [X0,X1] :
      ( ? [X2] :
          ( ( tail_of(X2) != X0
            | head_of(X2) != X1
            | tail_of(X2) != X1
            | head_of(X2) != X0 )
          & ( ( tail_of(X2) = X0
              & head_of(X2) = X1 )
            | ( tail_of(X2) = X1
              & head_of(X2) = X0 ) )
          & edge(X2) )
     => ( ( tail_of(sK0(X0,X1)) != X0
          | head_of(sK0(X0,X1)) != X1
          | tail_of(sK0(X0,X1)) != X1
          | head_of(sK0(X0,X1)) != X0 )
        & ( ( tail_of(sK0(X0,X1)) = X0
            & head_of(sK0(X0,X1)) = X1 )
          | ( tail_of(sK0(X0,X1)) = X1
            & head_of(sK0(X0,X1)) = X0 ) )
        & edge(sK0(X0,X1)) ) ),
    introduced(choice_axiom,[]) ).

fof(f69,plain,
    ( ! [X0,X1] :
        ( ( ( tail_of(sK0(X0,X1)) != X0
            | head_of(sK0(X0,X1)) != X1
            | tail_of(sK0(X0,X1)) != X1
            | head_of(sK0(X0,X1)) != X0 )
          & ( ( tail_of(sK0(X0,X1)) = X0
              & head_of(sK0(X0,X1)) = X1 )
            | ( tail_of(sK0(X0,X1)) = X1
              & head_of(sK0(X0,X1)) = X0 ) )
          & edge(sK0(X0,X1)) )
        | X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0) )
    | ~ complete ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f67,f68]) ).

fof(f76,plain,
    ! [X2,X3] :
      ( ? [X4] :
          ( ( tail_of(X4) = X3
            | head_of(X4) = X3 )
          & on_path(X4,X2) )
     => ( ( tail_of(sK3(X2,X3)) = X3
          | head_of(sK3(X2,X3)) = X3 )
        & on_path(sK3(X2,X3),X2) ) ),
    introduced(choice_axiom,[]) ).

fof(f77,plain,
    ! [X0,X1,X2,X3] :
      ( ( ( tail_of(sK3(X2,X3)) = X3
          | head_of(sK3(X2,X3)) = X3 )
        & on_path(sK3(X2,X3),X2)
        & vertex(X3) )
      | ~ in_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK3])],[f49,f76]) ).

fof(f78,plain,
    ! [X0,X1] :
      ( ( sequential(X0,X1)
        | head_of(X0) != tail_of(X1)
        | X0 = X1
        | ~ edge(X1)
        | ~ edge(X0) )
      & ( ( head_of(X0) = tail_of(X1)
          & X0 != X1
          & edge(X1)
          & edge(X0) )
        | ~ sequential(X0,X1) ) ),
    inference(nnf_transformation,[],[f26]) ).

fof(f79,plain,
    ! [X0,X1] :
      ( ( sequential(X0,X1)
        | head_of(X0) != tail_of(X1)
        | X0 = X1
        | ~ edge(X1)
        | ~ edge(X0) )
      & ( ( head_of(X0) = tail_of(X1)
          & X0 != X1
          & edge(X1)
          & edge(X0) )
        | ~ sequential(X0,X1) ) ),
    inference(flattening,[],[f78]) ).

fof(f80,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( ( ( ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) )
              | ~ sequential(X3,X4) )
            & ( ? [X5] :
                  ( precedes(X5,X4,X0)
                  & sequential(X3,X5) )
              | sequential(X3,X4) )
            & on_path(X4,X0)
            & on_path(X3,X0) )
          | ~ precedes(X3,X4,X0) )
      | ~ path(X1,X2,X0) ),
    inference(nnf_transformation,[],[f52]) ).

fof(f81,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( ( ( ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) )
              | ~ sequential(X3,X4) )
            & ( ? [X5] :
                  ( precedes(X5,X4,X0)
                  & sequential(X3,X5) )
              | sequential(X3,X4) )
            & on_path(X4,X0)
            & on_path(X3,X0) )
          | ~ precedes(X3,X4,X0) )
      | ~ path(X1,X2,X0) ),
    inference(flattening,[],[f80]) ).

fof(f82,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( ( ( ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) )
              | ~ sequential(X3,X4) )
            & ( ? [X6] :
                  ( precedes(X6,X4,X0)
                  & sequential(X3,X6) )
              | sequential(X3,X4) )
            & on_path(X4,X0)
            & on_path(X3,X0) )
          | ~ precedes(X3,X4,X0) )
      | ~ path(X1,X2,X0) ),
    inference(rectify,[],[f81]) ).

fof(f83,plain,
    ! [X0,X3,X4] :
      ( ? [X6] :
          ( precedes(X6,X4,X0)
          & sequential(X3,X6) )
     => ( precedes(sK4(X0,X3,X4),X4,X0)
        & sequential(X3,sK4(X0,X3,X4)) ) ),
    introduced(choice_axiom,[]) ).

fof(f84,plain,
    ! [X0,X1,X2] :
      ( ! [X3,X4] :
          ( ( ( ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) )
              | ~ sequential(X3,X4) )
            & ( ( precedes(sK4(X0,X3,X4),X4,X0)
                & sequential(X3,sK4(X0,X3,X4)) )
              | sequential(X3,X4) )
            & on_path(X4,X0)
            & on_path(X3,X0) )
          | ~ precedes(X3,X4,X0) )
      | ~ path(X1,X2,X0) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK4])],[f82,f83]) ).

fof(f85,plain,
    ! [X0,X1,X2] :
      ( ( shortest_path(X0,X1,X2)
        | ? [X3] :
            ( ~ less_or_equal(length_of(X2),length_of(X3))
            & path(X0,X1,X3) )
        | X0 = X1
        | ~ path(X0,X1,X2) )
      & ( ( ! [X3] :
              ( less_or_equal(length_of(X2),length_of(X3))
              | ~ path(X0,X1,X3) )
          & X0 != X1
          & path(X0,X1,X2) )
        | ~ shortest_path(X0,X1,X2) ) ),
    inference(nnf_transformation,[],[f53]) ).

fof(f86,plain,
    ! [X0,X1,X2] :
      ( ( shortest_path(X0,X1,X2)
        | ? [X3] :
            ( ~ less_or_equal(length_of(X2),length_of(X3))
            & path(X0,X1,X3) )
        | X0 = X1
        | ~ path(X0,X1,X2) )
      & ( ( ! [X3] :
              ( less_or_equal(length_of(X2),length_of(X3))
              | ~ path(X0,X1,X3) )
          & X0 != X1
          & path(X0,X1,X2) )
        | ~ shortest_path(X0,X1,X2) ) ),
    inference(flattening,[],[f85]) ).

fof(f87,plain,
    ! [X0,X1,X2] :
      ( ( shortest_path(X0,X1,X2)
        | ? [X3] :
            ( ~ less_or_equal(length_of(X2),length_of(X3))
            & path(X0,X1,X3) )
        | X0 = X1
        | ~ path(X0,X1,X2) )
      & ( ( ! [X4] :
              ( less_or_equal(length_of(X2),length_of(X4))
              | ~ path(X0,X1,X4) )
          & X0 != X1
          & path(X0,X1,X2) )
        | ~ shortest_path(X0,X1,X2) ) ),
    inference(rectify,[],[f86]) ).

fof(f88,plain,
    ! [X0,X1,X2] :
      ( ? [X3] :
          ( ~ less_or_equal(length_of(X2),length_of(X3))
          & path(X0,X1,X3) )
     => ( ~ less_or_equal(length_of(X2),length_of(sK5(X0,X1,X2)))
        & path(X0,X1,sK5(X0,X1,X2)) ) ),
    introduced(choice_axiom,[]) ).

fof(f89,plain,
    ! [X0,X1,X2] :
      ( ( shortest_path(X0,X1,X2)
        | ( ~ less_or_equal(length_of(X2),length_of(sK5(X0,X1,X2)))
          & path(X0,X1,sK5(X0,X1,X2)) )
        | X0 = X1
        | ~ path(X0,X1,X2) )
      & ( ( ! [X4] :
              ( less_or_equal(length_of(X2),length_of(X4))
              | ~ path(X0,X1,X4) )
          & X0 != X1
          & path(X0,X1,X2) )
        | ~ shortest_path(X0,X1,X2) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK5])],[f87,f88]) ).

fof(f92,plain,
    ( ? [X0,X1,X2,X3,X4] :
        ( ! [X5] :
            ( tail_of(X2) != head_of(X5)
            | head_of(X3) != tail_of(X5)
            | ~ edge(X5) )
        & precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4) )
   => ( ! [X5] :
          ( head_of(X5) != tail_of(sK10)
          | tail_of(X5) != head_of(sK11)
          | ~ edge(X5) )
      & precedes(sK10,sK11,sK12)
      & shortest_path(sK8,sK9,sK12) ) ),
    introduced(choice_axiom,[]) ).

fof(f93,plain,
    ( ! [X5] :
        ( head_of(X5) != tail_of(sK10)
        | tail_of(X5) != head_of(sK11)
        | ~ edge(X5) )
    & precedes(sK10,sK11,sK12)
    & shortest_path(sK8,sK9,sK12)
    & complete ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK8,sK9,sK10,sK11,sK12])],[f65,f92]) ).

fof(f94,plain,
    ! [X0] :
      ( head_of(X0) != tail_of(X0)
      | ~ edge(X0) ),
    inference(cnf_transformation,[],[f39]) ).

fof(f96,plain,
    ! [X0] :
      ( vertex(tail_of(X0))
      | ~ edge(X0) ),
    inference(cnf_transformation,[],[f40]) ).

fof(f97,plain,
    ! [X0,X1] :
      ( edge(sK0(X0,X1))
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | ~ complete ),
    inference(cnf_transformation,[],[f69]) ).

fof(f98,plain,
    ! [X0,X1] :
      ( head_of(sK0(X0,X1)) = X1
      | head_of(sK0(X0,X1)) = X0
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | ~ complete ),
    inference(cnf_transformation,[],[f69]) ).

fof(f99,plain,
    ! [X0,X1] :
      ( head_of(sK0(X0,X1)) = X1
      | tail_of(sK0(X0,X1)) = X1
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | ~ complete ),
    inference(cnf_transformation,[],[f69]) ).

fof(f101,plain,
    ! [X0,X1] :
      ( tail_of(sK0(X0,X1)) = X0
      | tail_of(sK0(X0,X1)) = X1
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | ~ complete ),
    inference(cnf_transformation,[],[f69]) ).

fof(f114,plain,
    ! [X2,X3,X0,X1] :
      ( edge(X3)
      | ~ on_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f47]) ).

fof(f115,plain,
    ! [X2,X3,X0,X1] :
      ( in_path(head_of(X3),X2)
      | ~ on_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f47]) ).

fof(f116,plain,
    ! [X2,X3,X0,X1] :
      ( in_path(tail_of(X3),X2)
      | ~ on_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f47]) ).

fof(f117,plain,
    ! [X2,X3,X0,X1] :
      ( vertex(X3)
      | ~ in_path(X3,X2)
      | ~ path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f77]) ).

fof(f124,plain,
    ! [X0,X1] :
      ( sequential(X0,X1)
      | head_of(X0) != tail_of(X1)
      | X0 = X1
      | ~ edge(X1)
      | ~ edge(X0) ),
    inference(cnf_transformation,[],[f79]) ).

fof(f125,plain,
    ! [X2,X3,X0,X1,X4] :
      ( precedes(X3,X4,X0)
      | ~ sequential(X3,X4)
      | ~ on_path(X4,X0)
      | ~ on_path(X3,X0)
      | ~ path(X1,X2,X0) ),
    inference(cnf_transformation,[],[f51]) ).

fof(f127,plain,
    ! [X2,X3,X0,X1,X4] :
      ( on_path(X3,X0)
      | ~ precedes(X3,X4,X0)
      | ~ path(X1,X2,X0) ),
    inference(cnf_transformation,[],[f84]) ).

fof(f128,plain,
    ! [X2,X3,X0,X1,X4] :
      ( on_path(X4,X0)
      | ~ precedes(X3,X4,X0)
      | ~ path(X1,X2,X0) ),
    inference(cnf_transformation,[],[f84]) ).

fof(f132,plain,
    ! [X2,X0,X1] :
      ( path(X0,X1,X2)
      | ~ shortest_path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f89]) ).

fof(f137,plain,
    ! [X2,X3,X0,X1,X4,X5] :
      ( head_of(X3) != head_of(X5)
      | tail_of(X2) != tail_of(X5)
      | ~ precedes(X2,X3,X4)
      | ~ shortest_path(X0,X1,X4) ),
    inference(cnf_transformation,[],[f55]) ).

fof(f138,plain,
    ! [X2,X3,X0,X1,X4] :
      ( ~ precedes(X3,X2,X4)
      | ~ precedes(X2,X3,X4)
      | ~ shortest_path(X0,X1,X4) ),
    inference(cnf_transformation,[],[f55]) ).

fof(f148,plain,
    complete,
    inference(cnf_transformation,[],[f93]) ).

fof(f149,plain,
    shortest_path(sK8,sK9,sK12),
    inference(cnf_transformation,[],[f93]) ).

fof(f150,plain,
    precedes(sK10,sK11,sK12),
    inference(cnf_transformation,[],[f93]) ).

fof(f151,plain,
    ! [X5] :
      ( head_of(X5) != tail_of(sK10)
      | tail_of(X5) != head_of(sK11)
      | ~ edge(X5) ),
    inference(cnf_transformation,[],[f93]) ).

cnf(c_49,negated_conjecture,
    ( head_of(X0) != tail_of(X0)
    | ~ edge(X0) ),
    inference(cnf_transformation,[],[f94]) ).

cnf(c_50,plain,
    ( ~ edge(X0)
    | vertex(tail_of(X0)) ),
    inference(cnf_transformation,[],[f96]) ).

cnf(c_53,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | ~ complete
    | tail_of(sK0(X0,X1)) = X0
    | tail_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(cnf_transformation,[],[f101]) ).

cnf(c_55,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | ~ complete
    | head_of(sK0(X0,X1)) = X1
    | tail_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(cnf_transformation,[],[f99]) ).

cnf(c_56,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | ~ complete
    | head_of(sK0(X0,X1)) = X0
    | head_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(cnf_transformation,[],[f98]) ).

cnf(c_57,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | ~ complete
    | X0 = X1
    | edge(sK0(X0,X1)) ),
    inference(cnf_transformation,[],[f97]) ).

cnf(c_69,plain,
    ( ~ path(X0,X1,X2)
    | ~ on_path(X3,X2)
    | in_path(tail_of(X3),X2) ),
    inference(cnf_transformation,[],[f116]) ).

cnf(c_70,plain,
    ( ~ path(X0,X1,X2)
    | ~ on_path(X3,X2)
    | in_path(head_of(X3),X2) ),
    inference(cnf_transformation,[],[f115]) ).

cnf(c_71,plain,
    ( ~ path(X0,X1,X2)
    | ~ on_path(X3,X2)
    | edge(X3) ),
    inference(cnf_transformation,[],[f114]) ).

cnf(c_74,plain,
    ( ~ path(X0,X1,X2)
    | ~ in_path(X3,X2)
    | vertex(X3) ),
    inference(cnf_transformation,[],[f117]) ).

cnf(c_75,plain,
    ( head_of(X0) != tail_of(X1)
    | ~ edge(X0)
    | ~ edge(X1)
    | X0 = X1
    | sequential(X0,X1) ),
    inference(cnf_transformation,[],[f124]) ).

cnf(c_81,plain,
    ( ~ path(X0,X1,X2)
    | ~ on_path(X3,X2)
    | ~ on_path(X4,X2)
    | ~ sequential(X3,X4)
    | precedes(X3,X4,X2) ),
    inference(cnf_transformation,[],[f125]) ).

cnf(c_85,plain,
    ( ~ path(X0,X1,X2)
    | ~ precedes(X3,X4,X2)
    | on_path(X4,X2) ),
    inference(cnf_transformation,[],[f128]) ).

cnf(c_86,plain,
    ( ~ path(X0,X1,X2)
    | ~ precedes(X3,X4,X2)
    | on_path(X3,X2) ),
    inference(cnf_transformation,[],[f127]) ).

cnf(c_91,plain,
    ( ~ shortest_path(X0,X1,X2)
    | path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f132]) ).

cnf(c_92,negated_conjecture,
    ( ~ precedes(X0,X1,X2)
    | ~ precedes(X1,X0,X2)
    | ~ shortest_path(X3,X4,X2) ),
    inference(cnf_transformation,[],[f138]) ).

cnf(c_93,negated_conjecture,
    ( head_of(X0) != head_of(X1)
    | tail_of(X1) != tail_of(X2)
    | ~ precedes(X2,X0,X3)
    | ~ shortest_path(X4,X5,X3) ),
    inference(cnf_transformation,[],[f137]) ).

cnf(c_103,negated_conjecture,
    ( head_of(X0) != tail_of(sK10)
    | tail_of(X0) != head_of(sK11)
    | ~ edge(X0) ),
    inference(cnf_transformation,[],[f151]) ).

cnf(c_104,negated_conjecture,
    precedes(sK10,sK11,sK12),
    inference(cnf_transformation,[],[f150]) ).

cnf(c_105,negated_conjecture,
    shortest_path(sK8,sK9,sK12),
    inference(cnf_transformation,[],[f149]) ).

cnf(c_106,negated_conjecture,
    complete,
    inference(cnf_transformation,[],[f148]) ).

cnf(c_144,plain,
    ( ~ vertex(X1)
    | ~ vertex(X0)
    | X0 = X1
    | edge(sK0(X0,X1)) ),
    inference(global_subsumption_just,[status(thm)],[c_57,c_106,c_57]) ).

cnf(c_145,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | X0 = X1
    | edge(sK0(X0,X1)) ),
    inference(renaming,[status(thm)],[c_144]) ).

cnf(c_157,plain,
    ( ~ vertex(X1)
    | ~ vertex(X0)
    | head_of(sK0(X0,X1)) = X0
    | head_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(global_subsumption_just,[status(thm)],[c_56,c_106,c_56]) ).

cnf(c_158,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | head_of(sK0(X0,X1)) = X0
    | head_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(renaming,[status(thm)],[c_157]) ).

cnf(c_160,plain,
    ( ~ vertex(X1)
    | ~ vertex(X0)
    | head_of(sK0(X0,X1)) = X1
    | tail_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(global_subsumption_just,[status(thm)],[c_55,c_106,c_55]) ).

cnf(c_161,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | head_of(sK0(X0,X1)) = X1
    | tail_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(renaming,[status(thm)],[c_160]) ).

cnf(c_164,plain,
    ( ~ vertex(X1)
    | ~ vertex(X0)
    | tail_of(sK0(X0,X1)) = X0
    | tail_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(global_subsumption_just,[status(thm)],[c_53,c_106,c_53]) ).

cnf(c_165,plain,
    ( ~ vertex(X0)
    | ~ vertex(X1)
    | tail_of(sK0(X0,X1)) = X0
    | tail_of(sK0(X0,X1)) = X1
    | X0 = X1 ),
    inference(renaming,[status(thm)],[c_164]) ).

cnf(c_227,plain,
    ( ~ vertex(X0_13)
    | ~ vertex(X1_13)
    | tail_of(sK0(X0_13,X1_13)) = X0_13
    | tail_of(sK0(X0_13,X1_13)) = X1_13
    | X0_13 = X1_13 ),
    inference(subtyping,[status(esa)],[c_165]) ).

cnf(c_229,plain,
    ( ~ vertex(X0_13)
    | ~ vertex(X1_13)
    | head_of(sK0(X0_13,X1_13)) = X1_13
    | tail_of(sK0(X0_13,X1_13)) = X1_13
    | X0_13 = X1_13 ),
    inference(subtyping,[status(esa)],[c_161]) ).

cnf(c_230,plain,
    ( ~ vertex(X0_13)
    | ~ vertex(X1_13)
    | head_of(sK0(X0_13,X1_13)) = X0_13
    | head_of(sK0(X0_13,X1_13)) = X1_13
    | X0_13 = X1_13 ),
    inference(subtyping,[status(esa)],[c_158]) ).

cnf(c_235,plain,
    ( ~ vertex(X0_13)
    | ~ vertex(X1_13)
    | X0_13 = X1_13
    | edge(sK0(X0_13,X1_13)) ),
    inference(subtyping,[status(esa)],[c_145]) ).

cnf(c_236,negated_conjecture,
    shortest_path(sK8,sK9,sK12),
    inference(subtyping,[status(esa)],[c_105]) ).

cnf(c_237,negated_conjecture,
    precedes(sK10,sK11,sK12),
    inference(subtyping,[status(esa)],[c_104]) ).

cnf(c_238,negated_conjecture,
    ( head_of(X0_14) != tail_of(sK10)
    | tail_of(X0_14) != head_of(sK11)
    | ~ edge(X0_14) ),
    inference(subtyping,[status(esa)],[c_103]) ).

cnf(c_246,negated_conjecture,
    ( head_of(X0_14) != head_of(X1_14)
    | tail_of(X1_14) != tail_of(X2_14)
    | ~ precedes(X2_14,X0_14,X0_15)
    | ~ shortest_path(X0_13,X1_13,X0_15) ),
    inference(subtyping,[status(esa)],[c_93]) ).

cnf(c_247,negated_conjecture,
    ( ~ precedes(X0_14,X1_14,X0_15)
    | ~ precedes(X1_14,X0_14,X0_15)
    | ~ shortest_path(X0_13,X1_13,X0_15) ),
    inference(subtyping,[status(esa)],[c_92]) ).

cnf(c_248,plain,
    ( ~ shortest_path(X0_13,X1_13,X0_15)
    | path(X0_13,X1_13,X0_15) ),
    inference(subtyping,[status(esa)],[c_91]) ).

cnf(c_253,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ precedes(X0_14,X1_14,X0_15)
    | on_path(X0_14,X0_15) ),
    inference(subtyping,[status(esa)],[c_86]) ).

cnf(c_254,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ precedes(X0_14,X1_14,X0_15)
    | on_path(X1_14,X0_15) ),
    inference(subtyping,[status(esa)],[c_85]) ).

cnf(c_258,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ on_path(X0_14,X0_15)
    | ~ on_path(X1_14,X0_15)
    | ~ sequential(X0_14,X1_14)
    | precedes(X0_14,X1_14,X0_15) ),
    inference(subtyping,[status(esa)],[c_81]) ).

cnf(c_263,plain,
    ( head_of(X0_14) != tail_of(X1_14)
    | ~ edge(X0_14)
    | ~ edge(X1_14)
    | X0_14 = X1_14
    | sequential(X0_14,X1_14) ),
    inference(subtyping,[status(esa)],[c_75]) ).

cnf(c_264,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ in_path(X2_13,X0_15)
    | vertex(X2_13) ),
    inference(subtyping,[status(esa)],[c_74]) ).

cnf(c_267,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ on_path(X0_14,X0_15)
    | edge(X0_14) ),
    inference(subtyping,[status(esa)],[c_71]) ).

cnf(c_268,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ on_path(X0_14,X0_15)
    | in_path(head_of(X0_14),X0_15) ),
    inference(subtyping,[status(esa)],[c_70]) ).

cnf(c_269,plain,
    ( ~ path(X0_13,X1_13,X0_15)
    | ~ on_path(X0_14,X0_15)
    | in_path(tail_of(X0_14),X0_15) ),
    inference(subtyping,[status(esa)],[c_69]) ).

cnf(c_280,plain,
    ( ~ edge(X0_14)
    | vertex(tail_of(X0_14)) ),
    inference(subtyping,[status(esa)],[c_50]) ).

cnf(c_281,negated_conjecture,
    ( head_of(X0_14) != tail_of(X0_14)
    | ~ edge(X0_14) ),
    inference(subtyping,[status(esa)],[c_49]) ).

cnf(c_283,plain,
    X0_13 = X0_13,
    theory(equality) ).

cnf(c_284,plain,
    X0_14 = X0_14,
    theory(equality) ).

cnf(c_287,plain,
    ( X0_13 != X1_13
    | X2_13 != X1_13
    | X2_13 = X0_13 ),
    theory(equality) ).

cnf(c_291,plain,
    ( X0_14 != X1_14
    | head_of(X0_14) = head_of(X1_14) ),
    theory(equality) ).

cnf(c_292,plain,
    ( X0_14 != X1_14
    | tail_of(X0_14) = tail_of(X1_14) ),
    theory(equality) ).

cnf(c_316,plain,
    ( sK10 != sK10
    | tail_of(sK10) = tail_of(sK10) ),
    inference(instantiation,[status(thm)],[c_292]) ).

cnf(c_331,plain,
    sK10 = sK10,
    inference(instantiation,[status(thm)],[c_284]) ).

cnf(c_371,plain,
    ( ~ edge(sK10)
    | vertex(tail_of(sK10)) ),
    inference(instantiation,[status(thm)],[c_280]) ).

cnf(c_373,plain,
    ( ~ precedes(X0_14,X1_14,sK12)
    | ~ precedes(X1_14,X0_14,sK12)
    | ~ shortest_path(sK8,sK9,sK12) ),
    inference(instantiation,[status(thm)],[c_247]) ).

cnf(c_375,plain,
    ( head_of(X0_14) != head_of(X1_14)
    | tail_of(X1_14) != tail_of(X2_14)
    | ~ precedes(X2_14,X0_14,sK12)
    | ~ shortest_path(sK8,sK9,sK12) ),
    inference(instantiation,[status(thm)],[c_246]) ).

cnf(c_415,plain,
    path(sK8,sK9,sK12),
    inference(superposition,[status(thm)],[c_236,c_248]) ).

cnf(c_424,plain,
    ( ~ in_path(X0_13,sK12)
    | vertex(X0_13) ),
    inference(superposition,[status(thm)],[c_415,c_264]) ).

cnf(c_428,plain,
    ( ~ on_path(X0_14,sK12)
    | edge(X0_14) ),
    inference(superposition,[status(thm)],[c_415,c_267]) ).

cnf(c_429,plain,
    ( ~ on_path(sK10,sK12)
    | edge(sK10) ),
    inference(instantiation,[status(thm)],[c_428]) ).

cnf(c_430,plain,
    ( ~ precedes(sK10,sK11,sK12)
    | ~ precedes(sK11,sK10,sK12)
    | ~ shortest_path(sK8,sK9,sK12) ),
    inference(instantiation,[status(thm)],[c_373]) ).

cnf(c_434,plain,
    ( tail_of(X0_14) != tail_of(sK10)
    | head_of(sK11) != head_of(X0_14)
    | ~ precedes(sK10,sK11,sK12)
    | ~ shortest_path(sK8,sK9,sK12) ),
    inference(instantiation,[status(thm)],[c_375]) ).

cnf(c_435,plain,
    ( head_of(sK11) != head_of(sK10)
    | tail_of(sK10) != tail_of(sK10)
    | ~ precedes(sK10,sK11,sK12)
    | ~ shortest_path(sK8,sK9,sK12) ),
    inference(instantiation,[status(thm)],[c_434]) ).

cnf(c_448,plain,
    ( ~ path(X0_13,X1_13,sK12)
    | on_path(sK10,sK12) ),
    inference(superposition,[status(thm)],[c_237,c_253]) ).

cnf(c_460,plain,
    ( ~ path(X0_13,X1_13,sK12)
    | on_path(sK11,sK12) ),
    inference(superposition,[status(thm)],[c_237,c_254]) ).

cnf(c_463,plain,
    ( ~ on_path(X0_14,sK12)
    | in_path(head_of(X0_14),sK12) ),
    inference(superposition,[status(thm)],[c_415,c_268]) ).

cnf(c_482,plain,
    ( sK11 != X0_14
    | head_of(sK11) = head_of(X0_14) ),
    inference(instantiation,[status(thm)],[c_291]) ).

cnf(c_483,plain,
    ( sK11 != sK10
    | head_of(sK11) = head_of(sK10) ),
    inference(instantiation,[status(thm)],[c_482]) ).

cnf(c_485,plain,
    head_of(sK11) = head_of(sK11),
    inference(instantiation,[status(thm)],[c_283]) ).

cnf(c_486,plain,
    ( head_of(X0_14) != X0_13
    | head_of(sK11) != X0_13
    | head_of(sK11) = head_of(X0_14) ),
    inference(instantiation,[status(thm)],[c_287]) ).

cnf(c_492,plain,
    on_path(sK10,sK12),
    inference(superposition,[status(thm)],[c_415,c_448]) ).

cnf(c_494,plain,
    on_path(sK11,sK12),
    inference(superposition,[status(thm)],[c_415,c_460]) ).

cnf(c_495,plain,
    edge(sK11),
    inference(superposition,[status(thm)],[c_494,c_428]) ).

cnf(c_496,plain,
    ( ~ on_path(X0_14,sK12)
    | vertex(head_of(X0_14)) ),
    inference(superposition,[status(thm)],[c_463,c_424]) ).

cnf(c_505,plain,
    vertex(head_of(sK11)),
    inference(superposition,[status(thm)],[c_494,c_496]) ).

cnf(c_640,plain,
    path(sK8,sK9,sK12),
    inference(superposition,[status(thm)],[c_236,c_248]) ).

cnf(c_643,plain,
    ( ~ path(X0_13,X1_13,sK12)
    | on_path(sK10,sK12) ),
    inference(superposition,[status(thm)],[c_237,c_253]) ).

cnf(c_644,plain,
    on_path(sK10,sK12),
    inference(global_subsumption_just,[status(thm)],[c_643,c_492]) ).

cnf(c_652,plain,
    ( ~ in_path(X0_13,sK12)
    | vertex(X0_13) ),
    inference(superposition,[status(thm)],[c_640,c_264]) ).

cnf(c_662,plain,
    ( ~ on_path(X0_14,sK12)
    | in_path(tail_of(X0_14),sK12) ),
    inference(superposition,[status(thm)],[c_640,c_269]) ).

cnf(c_671,plain,
    ( ~ on_path(X0_14,sK12)
    | vertex(tail_of(X0_14)) ),
    inference(superposition,[status(thm)],[c_662,c_652]) ).

cnf(c_698,plain,
    vertex(tail_of(sK10)),
    inference(superposition,[status(thm)],[c_644,c_671]) ).

cnf(c_785,plain,
    ( head_of(sK11) != tail_of(X0_14)
    | ~ edge(X0_14)
    | ~ edge(sK11)
    | sK11 = X0_14
    | sequential(sK11,X0_14) ),
    inference(instantiation,[status(thm)],[c_263]) ).

cnf(c_786,plain,
    ( head_of(sK11) != tail_of(sK10)
    | ~ edge(sK10)
    | ~ edge(sK11)
    | sK11 = sK10
    | sequential(sK11,sK10) ),
    inference(instantiation,[status(thm)],[c_785]) ).

cnf(c_797,plain,
    ( ~ vertex(tail_of(X0_14))
    | ~ vertex(head_of(sK11))
    | head_of(sK0(tail_of(X0_14),head_of(sK11))) = tail_of(X0_14)
    | head_of(sK0(tail_of(X0_14),head_of(sK11))) = head_of(sK11)
    | tail_of(X0_14) = head_of(sK11) ),
    inference(instantiation,[status(thm)],[c_230]) ).

cnf(c_800,plain,
    ( ~ vertex(tail_of(X0_14))
    | ~ vertex(head_of(sK11))
    | tail_of(sK0(tail_of(X0_14),head_of(sK11))) = tail_of(X0_14)
    | tail_of(sK0(tail_of(X0_14),head_of(sK11))) = head_of(sK11)
    | tail_of(X0_14) = head_of(sK11) ),
    inference(instantiation,[status(thm)],[c_227]) ).

cnf(c_801,plain,
    ( ~ vertex(tail_of(X0_14))
    | ~ vertex(head_of(sK11))
    | tail_of(X0_14) = head_of(sK11)
    | edge(sK0(tail_of(X0_14),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_235]) ).

cnf(c_802,plain,
    ( ~ vertex(head_of(sK11))
    | ~ vertex(tail_of(sK10))
    | tail_of(sK10) = head_of(sK11)
    | edge(sK0(tail_of(sK10),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_801]) ).

cnf(c_803,plain,
    ( ~ vertex(head_of(sK11))
    | ~ vertex(tail_of(sK10))
    | tail_of(sK0(tail_of(sK10),head_of(sK11))) = head_of(sK11)
    | tail_of(sK0(tail_of(sK10),head_of(sK11))) = tail_of(sK10)
    | tail_of(sK10) = head_of(sK11) ),
    inference(instantiation,[status(thm)],[c_800]) ).

cnf(c_806,plain,
    ( ~ vertex(head_of(sK11))
    | ~ vertex(tail_of(sK10))
    | head_of(sK0(tail_of(sK10),head_of(sK11))) = head_of(sK11)
    | head_of(sK0(tail_of(sK10),head_of(sK11))) = tail_of(sK10)
    | tail_of(sK10) = head_of(sK11) ),
    inference(instantiation,[status(thm)],[c_797]) ).

cnf(c_834,plain,
    ( head_of(X0_14) != X0_13
    | tail_of(X0_14) != X0_13
    | head_of(X0_14) = tail_of(X0_14) ),
    inference(instantiation,[status(thm)],[c_287]) ).

cnf(c_879,plain,
    ( head_of(sK11) != X0_13
    | X1_13 != X0_13
    | head_of(sK11) = X1_13 ),
    inference(instantiation,[status(thm)],[c_287]) ).

cnf(c_880,plain,
    ( head_of(X0_14) != head_of(sK11)
    | head_of(sK11) != head_of(sK11)
    | head_of(sK11) = head_of(X0_14) ),
    inference(instantiation,[status(thm)],[c_486]) ).

cnf(c_1547,plain,
    ( head_of(X0_14) != head_of(X1_14)
    | tail_of(X0_14) != head_of(X1_14)
    | head_of(X0_14) = tail_of(X0_14) ),
    inference(instantiation,[status(thm)],[c_834]) ).

cnf(c_1568,plain,
    ( ~ shortest_path(X0_13,X1_13,sK12)
    | ~ precedes(sK11,sK10,sK12) ),
    inference(superposition,[status(thm)],[c_237,c_247]) ).

cnf(c_1570,plain,
    ~ precedes(sK11,sK10,sK12),
    inference(global_subsumption_just,[status(thm)],[c_1568,c_105,c_104,c_430]) ).

cnf(c_1580,plain,
    path(sK8,sK9,sK12),
    inference(superposition,[status(thm)],[c_236,c_248]) ).

cnf(c_1754,plain,
    ( ~ sequential(X0_14,X1_14)
    | ~ on_path(X0_14,sK12)
    | ~ on_path(X1_14,sK12)
    | precedes(X0_14,X1_14,sK12) ),
    inference(superposition,[status(thm)],[c_1580,c_258]) ).

cnf(c_1858,plain,
    ( ~ on_path(sK10,sK12)
    | ~ on_path(sK11,sK12)
    | ~ sequential(sK11,sK10) ),
    inference(superposition,[status(thm)],[c_1754,c_1570]) ).

cnf(c_3095,plain,
    ( head_of(sK11) != head_of(sK11)
    | X0_13 != head_of(sK11)
    | head_of(sK11) = X0_13 ),
    inference(instantiation,[status(thm)],[c_879]) ).

cnf(c_3608,plain,
    ( head_of(sK0(tail_of(sK10),head_of(sK11))) != tail_of(sK10)
    | tail_of(sK0(tail_of(sK10),head_of(sK11))) != head_of(sK11)
    | ~ edge(sK0(tail_of(sK10),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_238]) ).

cnf(c_4600,plain,
    ( head_of(sK0(tail_of(X0_14),head_of(sK11))) != head_of(sK11)
    | tail_of(sK0(tail_of(X0_14),head_of(sK11))) != head_of(sK11)
    | head_of(sK0(tail_of(X0_14),head_of(sK11))) = tail_of(sK0(tail_of(X0_14),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_1547]) ).

cnf(c_4601,plain,
    ( head_of(sK0(tail_of(sK10),head_of(sK11))) != head_of(sK11)
    | tail_of(sK0(tail_of(sK10),head_of(sK11))) != head_of(sK11)
    | head_of(sK0(tail_of(sK10),head_of(sK11))) = tail_of(sK0(tail_of(sK10),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_4600]) ).

cnf(c_6717,plain,
    ( tail_of(X0_14) != head_of(sK11)
    | head_of(sK11) != head_of(sK11)
    | head_of(sK11) = tail_of(X0_14) ),
    inference(instantiation,[status(thm)],[c_3095]) ).

cnf(c_6718,plain,
    ( head_of(sK11) != head_of(sK11)
    | tail_of(sK10) != head_of(sK11)
    | head_of(sK11) = tail_of(sK10) ),
    inference(instantiation,[status(thm)],[c_6717]) ).

cnf(c_8928,plain,
    ( head_of(sK0(tail_of(sK10),head_of(sK11))) != head_of(sK11)
    | head_of(sK11) != head_of(sK11)
    | head_of(sK11) = head_of(sK0(tail_of(sK10),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_880]) ).

cnf(c_9673,plain,
    path(sK8,sK9,sK12),
    inference(superposition,[status(thm)],[c_236,c_248]) ).

cnf(c_9679,plain,
    ( ~ in_path(X0_13,sK12)
    | vertex(X0_13) ),
    inference(superposition,[status(thm)],[c_9673,c_264]) ).

cnf(c_9685,plain,
    ( ~ path(X0_13,X1_13,sK12)
    | on_path(sK11,sK12) ),
    inference(superposition,[status(thm)],[c_237,c_254]) ).

cnf(c_9687,plain,
    ( ~ on_path(X0_14,sK12)
    | in_path(head_of(X0_14),sK12) ),
    inference(superposition,[status(thm)],[c_9673,c_268]) ).

cnf(c_9691,plain,
    on_path(sK11,sK12),
    inference(global_subsumption_just,[status(thm)],[c_9685,c_494]) ).

cnf(c_9695,plain,
    ( ~ on_path(X0_14,sK12)
    | vertex(head_of(X0_14)) ),
    inference(superposition,[status(thm)],[c_9687,c_9679]) ).

cnf(c_9697,plain,
    vertex(head_of(sK11)),
    inference(superposition,[status(thm)],[c_9691,c_9695]) ).

cnf(c_10586,plain,
    ( ~ vertex(X0_13)
    | head_of(sK0(tail_of(sK10),X0_13)) = X0_13
    | tail_of(sK0(tail_of(sK10),X0_13)) = X0_13
    | tail_of(sK10) = X0_13 ),
    inference(superposition,[status(thm)],[c_698,c_229]) ).

cnf(c_12009,plain,
    ( head_of(sK0(tail_of(sK10),head_of(sK11))) = head_of(sK11)
    | tail_of(sK0(tail_of(sK10),head_of(sK11))) = head_of(sK11)
    | head_of(sK11) = tail_of(sK10) ),
    inference(superposition,[status(thm)],[c_9697,c_10586]) ).

cnf(c_13440,plain,
    ( head_of(sK0(tail_of(X0_14),head_of(sK11))) != tail_of(sK0(tail_of(X0_14),head_of(sK11)))
    | ~ edge(sK0(tail_of(X0_14),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_281]) ).

cnf(c_13441,plain,
    ( head_of(sK0(tail_of(sK10),head_of(sK11))) != tail_of(sK0(tail_of(sK10),head_of(sK11)))
    | ~ edge(sK0(tail_of(sK10),head_of(sK11))) ),
    inference(instantiation,[status(thm)],[c_13440]) ).

cnf(c_18937,plain,
    ( tail_of(sK0(tail_of(sK10),head_of(sK11))) != tail_of(sK10)
    | head_of(sK11) != head_of(sK0(tail_of(sK10),head_of(sK11)))
    | ~ precedes(sK10,sK11,sK12)
    | ~ shortest_path(sK8,sK9,sK12) ),
    inference(instantiation,[status(thm)],[c_434]) ).

cnf(c_18938,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_18937,c_13441,c_12009,c_8928,c_6718,c_4601,c_3608,c_1858,c_806,c_803,c_802,c_786,c_505,c_495,c_494,c_492,c_485,c_483,c_435,c_429,c_371,c_331,c_316,c_104,c_105]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : GRA007+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% 0.07/0.13  % Command  : run_iprover %s %d THM
% 0.12/0.33  % Computer : n002.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  : 300
% 0.12/0.33  % DateTime : Thu May  2 21:43:27 EDT 2024
% 0.12/0.34  % CPUTime  : 
% 0.18/0.46  Running first-order theorem proving
% 0.18/0.46  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --heuristic_context casc_unsat --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 20.43/3.67  % SZS status Started for theBenchmark.p
% 20.43/3.67  % SZS status Theorem for theBenchmark.p
% 20.43/3.67  
% 20.43/3.67  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 20.43/3.67  
% 20.43/3.67  ------  iProver source info
% 20.43/3.67  
% 20.43/3.67  git: date: 2024-05-02 19:28:25 +0000
% 20.43/3.67  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 20.43/3.67  git: non_committed_changes: false
% 20.43/3.67  
% 20.43/3.67  ------ Parsing...
% 20.43/3.67  ------ Clausification by vclausify_rel  & Parsing by iProver...
% 20.43/3.67  
% 20.43/3.67  ------ Preprocessing... sup_sim: 0  sf_s  rm: 2 0s  sf_e  sup_sim: 0  sf_s  rm: 1 0s  sf_e 
% 20.43/3.67  
% 20.43/3.67  ------ Preprocessing...
% 20.43/3.67  
% 20.43/3.67  ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 20.43/3.67  ------ Proving...
% 20.43/3.67  ------ Problem Properties 
% 20.43/3.67  
% 20.43/3.67  
% 20.43/3.67  clauses                                 56
% 20.43/3.67  conjectures                             10
% 20.43/3.67  EPR                                     18
% 20.43/3.67  Horn                                    38
% 20.43/3.67  unary                                   5
% 20.43/3.67  binary                                  14
% 20.43/3.67  lits                                    176
% 20.43/3.67  lits eq                                 46
% 20.43/3.67  fd_pure                                 0
% 20.43/3.67  fd_pseudo                               0
% 20.43/3.67  fd_cond                                 0
% 20.43/3.67  fd_pseudo_cond                          5
% 20.43/3.67  AC symbols                              0
% 20.43/3.67  
% 20.43/3.67  ------ Input Options Time Limit: Unbounded
% 20.43/3.67  
% 20.43/3.67  
% 20.43/3.67  ------ 
% 20.43/3.67  Current options:
% 20.43/3.67  ------ 
% 20.43/3.67  
% 20.43/3.67  
% 20.43/3.67  
% 20.43/3.67  
% 20.43/3.67  ------ Proving...
% 20.43/3.67  
% 20.43/3.67  
% 20.43/3.67  % SZS status Theorem for theBenchmark.p
% 20.43/3.67  
% 20.43/3.67  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 20.43/3.67  
% 20.43/3.67  
%------------------------------------------------------------------------------