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iProver---3.9.4.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : iProver---3.9.4
% Problem  : GRA008+1 : TPTP v9.3.1. Bugfixed v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM

% Computer : n009.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Fri Sep 25 01:23:34 PM UTC 2026

% Result   : Theorem 31.75s 5.41s
% Output   : CNFRefutation 31.75s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   36
%            Number of leaves      :   14
% Syntax   : Number of formulae    :  240 (  34 unt;   0 def)
%            Number of atoms       :  937 ( 380 equ)
%            Maximal formula atoms :   13 (   3 avg)
%            Number of connectives : 1130 ( 433   ~; 559   |; 114   &)
%                                         (   4 <=>;  15  =>;   0  <=;   5 <~>)
%            Maximal formula depth :   15 (   6 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :   12 (  10 usr;   2 prp; 0-3 aty)
%            Number of functors    :   11 (  11 usr;   5 con; 0-3 aty)
%            Number of variables   :  420 (   0 sgn 393   !;  27   ?; 191   :)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0] :
      ( edge(X0)
     => head_of(X0) != tail_of(X0) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',no_loops) ).

fof(f2,axiom,
    ! [X0] :
      ( edge(X0)
     => ( vertex(tail_of(X0))
        & vertex(head_of(X0)) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',edge_ends_are_vertices) ).

fof(f3,axiom,
    ( complete
   => ! [X0,X1] :
        ( ( X0 != X1
          & vertex(X1)
          & vertex(X0) )
       => ? [X2] :
            ( ( ( X1 = tail_of(X2)
                & X0 = head_of(X2) )
            <~> ( X0 = tail_of(X2)
                & X1 = head_of(X2) ) )
            & edge(X2) ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',complete_properties) ).

fof(f8,axiom,
    ! [X0,X1] :
      ( sequential(X0,X1)
    <=> ( head_of(X0) = tail_of(X1)
        & X0 != X1
        & edge(X1)
        & edge(X0) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',sequential_defn) ).

fof(f9,axiom,
    ! [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) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',precedes_defn) ).

fof(f10,axiom,
    ! [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) ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',precedes_properties) ).

fof(f11,axiom,
    ! [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) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',shortest_path_defn) ).

fof(f12,axiom,
    ! [X0,X1,X2,X3,X4] :
      ( ( precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4) )
     => ( ~ precedes(X3,X2,X4)
        & ~ ? [X5] :
              ( head_of(X5) = head_of(X3)
              & tail_of(X5) = tail_of(X2) ) ) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRA001+0.ax',shortest_path_properties) ).

fof(f13,axiom,
    ! [X0,X1,X2] :
      ( triangle(X0,X1,X2)
    <=> ( sequential(X2,X0)
        & sequential(X1,X2)
        & sequential(X0,X1)
        & edge(X2)
        & edge(X1)
        & edge(X0) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',triangle_defn) ).

fof(f18,conjecture,
    ( complete
   => ! [X0,X1,X2,X3,X4] :
        ( ( sequential(X2,X3)
          & precedes(X2,X3,X4)
          & shortest_path(X0,X1,X4) )
       => ? [X5] : triangle(X2,X3,X5) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',sequential_is_triangle) ).

fof(f19,negated_conjecture,
    ~ ( complete
     => ! [X0,X1,X2,X3,X4] :
          ( ( sequential(X2,X3)
            & precedes(X2,X3,X4)
            & shortest_path(X0,X1,X4) )
         => ? [X5] : triangle(X2,X3,X5) ) ),
    inference(negated_conjecture,[status(cth)],[f18]) ).

fof(f20,plain,
    ! [X0,X1,X2] :
      ( ( sequential(X2,X0)
        & sequential(X1,X2)
        & sequential(X0,X1)
        & edge(X2)
        & edge(X1)
        & edge(X0) )
     => triangle(X0,X1,X2) ),
    inference(unused_predicate_definition_removal,[],[f13]) ).

fof(f21,plain,
    ( complete
    & ? [X0,X1,X2,X3,X4] :
        ( sequential(X2,X3)
        & precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4)
        & ! [X5] : ~ triangle(X2,X3,X5) ) ),
    inference(ennf_transformation,[],[f19]) ).

fof(f22,plain,
    ( complete
    & ? [X0,X1,X2,X3,X4] :
        ( sequential(X2,X3)
        & precedes(X2,X3,X4)
        & shortest_path(X0,X1,X4)
        & ! [X5] : ~ triangle(X2,X3,X5) ) ),
    inference(flattening,[],[f21]) ).

fof(f23,plain,
    ( ~ complete
    | ! [X0,X1] :
        ( X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0)
        | ? [X2] :
            ( ( ( X1 = tail_of(X2)
                & X0 = head_of(X2) )
            <~> ( X0 = tail_of(X2)
                & X1 = head_of(X2) ) )
            & edge(X2) ) ) ),
    inference(ennf_transformation,[],[f3]) ).

fof(f24,plain,
    ( ~ complete
    | ! [X0,X1] :
        ( X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0)
        | ? [X2] :
            ( ( ( X1 = tail_of(X2)
                & X0 = head_of(X2) )
            <~> ( X0 = tail_of(X2)
                & X1 = head_of(X2) ) )
            & edge(X2) ) ) ),
    inference(flattening,[],[f23]) ).

fof(f25,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(ennf_transformation,[],[f10]) ).

fof(f26,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(ennf_transformation,[],[f9]) ).

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(flattening,[],[f26]) ).

fof(f28,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(ennf_transformation,[],[f12]) ).

fof(f29,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(flattening,[],[f28]) ).

fof(f30,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(ennf_transformation,[],[f11]) ).

fof(f31,plain,
    ! [X0,X1,X2] :
      ( ~ sequential(X2,X0)
      | ~ sequential(X1,X2)
      | ~ sequential(X0,X1)
      | ~ edge(X2)
      | ~ edge(X1)
      | ~ edge(X0)
      | triangle(X0,X1,X2) ),
    inference(ennf_transformation,[],[f20]) ).

fof(f32,plain,
    ! [X0,X1,X2] :
      ( ~ sequential(X2,X0)
      | ~ sequential(X1,X2)
      | ~ sequential(X0,X1)
      | ~ edge(X2)
      | ~ edge(X1)
      | ~ edge(X0)
      | triangle(X0,X1,X2) ),
    inference(flattening,[],[f31]) ).

fof(f33,plain,
    ! [X0] :
      ( ~ edge(X0)
      | head_of(X0) != tail_of(X0) ),
    inference(ennf_transformation,[],[f1]) ).

fof(f34,plain,
    ! [X0] :
      ( ~ edge(X0)
      | ( vertex(tail_of(X0))
        & vertex(head_of(X0)) ) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f35,plain,
    ( complete
    & sequential(sK2,sK3)
    & precedes(sK2,sK3,sK4)
    & shortest_path(sK0,sK1,sK4)
    & ! [X5] : ~ triangle(sK2,sK3,X5) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2),skolemize(X3,sK3),skolemize(X4,sK4)],[f22]) ).

fof(f36,plain,
    ( ~ complete
    | ! [X0,X1] :
        ( X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0)
        | ? [X2] :
            ( ( ( X1 = tail_of(X2)
                & X0 = head_of(X2) )
              | ( X0 = tail_of(X2)
                & X1 = head_of(X2) ) )
            & ( tail_of(X2) != X1
              | head_of(X2) != X0
              | tail_of(X2) != X0
              | head_of(X2) != X1 )
            & edge(X2) ) ) ),
    inference(nnf_transformation,[],[f24]) ).

fof(f37,plain,
    ( ~ complete
    | ! [X0,X1] :
        ( X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0)
        | ? [X2] :
            ( ( ( X1 = tail_of(X2)
                & X0 = head_of(X2) )
              | ( X0 = tail_of(X2)
                & X1 = head_of(X2) ) )
            & ( tail_of(X2) != X1
              | head_of(X2) != X0
              | tail_of(X2) != X0
              | head_of(X2) != X1 )
            & edge(X2) ) ) ),
    inference(flattening,[],[f36]) ).

fof(f38,plain,
    ( ~ complete
    | ! [X0,X1] :
        ( X0 = X1
        | ~ vertex(X1)
        | ~ vertex(X0)
        | ( ( ( tail_of(sK5(X0,X1)) = X1
              & head_of(sK5(X0,X1)) = X0 )
            | ( tail_of(sK5(X0,X1)) = X0
              & head_of(sK5(X0,X1)) = X1 ) )
          & ( tail_of(sK5(X0,X1)) != X1
            | head_of(sK5(X0,X1)) != X0
            | tail_of(sK5(X0,X1)) != X0
            | head_of(sK5(X0,X1)) != X1 )
          & edge(sK5(X0,X1)) ) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK5]),skolemize(X2,sK5(X0,X1))],[f37]) ).

fof(f39,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) ) )
            & ( ~ sequential(X3,X4)
              | ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) ) )
            & on_path(X4,X0)
            & on_path(X3,X0) ) ) ),
    inference(nnf_transformation,[],[f25]) ).

fof(f40,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) ) )
            & ( ~ sequential(X3,X4)
              | ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) ) )
            & on_path(X4,X0)
            & on_path(X3,X0) ) ) ),
    inference(flattening,[],[f39]) ).

fof(f41,plain,
    ! [X0,X1,X2] :
      ( ~ path(X1,X2,X0)
      | ! [X3,X4] :
          ( ~ precedes(X3,X4,X0)
          | ( ( sequential(X3,X4)
              | ? [X6] :
                  ( precedes(X6,X4,X0)
                  & sequential(X3,X6) ) )
            & ( ~ sequential(X3,X4)
              | ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) ) )
            & on_path(X4,X0)
            & on_path(X3,X0) ) ) ),
    inference(rectify,[],[f40]) ).

fof(f42,plain,
    ! [X0,X1,X2] :
      ( ~ path(X1,X2,X0)
      | ! [X3,X4] :
          ( ~ precedes(X3,X4,X0)
          | ( ( sequential(X3,X4)
              | ( precedes(sK6(X0,X3,X4),X4,X0)
                & sequential(X3,sK6(X0,X3,X4)) ) )
            & ( ~ sequential(X3,X4)
              | ! [X5] :
                  ( ~ precedes(X5,X4,X0)
                  | ~ sequential(X3,X5) ) )
            & on_path(X4,X0)
            & on_path(X3,X0) ) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK6]),skolemize(X6,sK6(X0,X3,X4))],[f41]) ).

fof(f43,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,[],[f8]) ).

fof(f44,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,[],[f43]) ).

fof(f45,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) ) )
      & ( ? [X3] :
            ( path(X0,X1,X3)
            & ~ less_or_equal(length_of(X2),length_of(X3)) )
        | X0 = X1
        | ~ path(X0,X1,X2)
        | shortest_path(X0,X1,X2) ) ),
    inference(nnf_transformation,[],[f30]) ).

fof(f46,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) ) )
      & ( ? [X3] :
            ( path(X0,X1,X3)
            & ~ less_or_equal(length_of(X2),length_of(X3)) )
        | X0 = X1
        | ~ path(X0,X1,X2)
        | shortest_path(X0,X1,X2) ) ),
    inference(flattening,[],[f45]) ).

fof(f47,plain,
    ! [X0,X1,X2] :
      ( ( ~ shortest_path(X0,X1,X2)
        | ( ! [X4] :
              ( ~ path(X0,X1,X4)
              | less_or_equal(length_of(X2),length_of(X4)) )
          & X0 != X1
          & path(X0,X1,X2) ) )
      & ( ? [X3] :
            ( path(X0,X1,X3)
            & ~ less_or_equal(length_of(X2),length_of(X3)) )
        | X0 = X1
        | ~ path(X0,X1,X2)
        | shortest_path(X0,X1,X2) ) ),
    inference(rectify,[],[f46]) ).

fof(f48,plain,
    ! [X0,X1,X2] :
      ( ( ~ shortest_path(X0,X1,X2)
        | ( ! [X4] :
              ( ~ path(X0,X1,X4)
              | less_or_equal(length_of(X2),length_of(X4)) )
          & X0 != X1
          & path(X0,X1,X2) ) )
      & ( ( path(X0,X1,sK7(X0,X1,X2))
          & ~ less_or_equal(length_of(X2),length_of(sK7(X0,X1,X2))) )
        | X0 = X1
        | ~ path(X0,X1,X2)
        | shortest_path(X0,X1,X2) ) ),
    inference(skolemize,[status(esa),new_symbols(skolem,[sK7]),skolemize(X3,sK7(X0,X1,X2))],[f47]) ).

fof(f49,plain,
    complete,
    inference(cnf_transformation,[],[f35]) ).

fof(f50,plain,
    sequential(sK2,sK3),
    inference(cnf_transformation,[],[f35]) ).

fof(f51,plain,
    precedes(sK2,sK3,sK4),
    inference(cnf_transformation,[],[f35]) ).

fof(f52,plain,
    shortest_path(sK0,sK1,sK4),
    inference(cnf_transformation,[],[f35]) ).

fof(f53,plain,
    ! [X5] : ~ triangle(sK2,sK3,X5),
    inference(cnf_transformation,[],[f35]) ).

fof(f54,plain,
    ! [X0,X1] :
      ( ~ complete
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | tail_of(sK5(X0,X1)) = X1
      | tail_of(sK5(X0,X1)) = X0 ),
    inference(cnf_transformation,[],[f38]) ).

fof(f55,plain,
    ! [X0,X1] :
      ( ~ complete
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | head_of(sK5(X0,X1)) = X0
      | tail_of(sK5(X0,X1)) = X0 ),
    inference(cnf_transformation,[],[f38]) ).

fof(f56,plain,
    ! [X0,X1] :
      ( ~ complete
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | tail_of(sK5(X0,X1)) = X1
      | head_of(sK5(X0,X1)) = X1 ),
    inference(cnf_transformation,[],[f38]) ).

fof(f57,plain,
    ! [X0,X1] :
      ( ~ complete
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | head_of(sK5(X0,X1)) = X0
      | head_of(sK5(X0,X1)) = X1 ),
    inference(cnf_transformation,[],[f38]) ).

fof(f59,plain,
    ! [X0,X1] :
      ( ~ complete
      | X0 = X1
      | ~ vertex(X1)
      | ~ vertex(X0)
      | edge(sK5(X0,X1)) ),
    inference(cnf_transformation,[],[f38]) ).

fof(f62,plain,
    ! [X2,X3,X0,X1,X4,X5] :
      ( ~ path(X1,X2,X0)
      | ~ precedes(X3,X4,X0)
      | ~ sequential(X3,X4)
      | ~ precedes(X5,X4,X0)
      | ~ sequential(X3,X5) ),
    inference(cnf_transformation,[],[f42]) ).

fof(f63,plain,
    ! [X2,X3,X0,X1,X4] :
      ( ~ path(X1,X2,X0)
      | ~ precedes(X3,X4,X0)
      | on_path(X4,X0) ),
    inference(cnf_transformation,[],[f42]) ).

fof(f64,plain,
    ! [X2,X3,X0,X1,X4] :
      ( ~ path(X1,X2,X0)
      | ~ precedes(X3,X4,X0)
      | on_path(X3,X0) ),
    inference(cnf_transformation,[],[f42]) ).

fof(f66,plain,
    ! [X2,X3,X0,X1,X4] :
      ( ~ path(X1,X2,X0)
      | ~ sequential(X3,X4)
      | ~ on_path(X4,X0)
      | ~ on_path(X3,X0)
      | precedes(X3,X4,X0) ),
    inference(cnf_transformation,[],[f27]) ).

fof(f67,plain,
    ! [X0,X1] :
      ( ~ sequential(X0,X1)
      | head_of(X0) = tail_of(X1) ),
    inference(cnf_transformation,[],[f44]) ).

fof(f68,plain,
    ! [X0,X1] :
      ( ~ sequential(X0,X1)
      | X0 != X1 ),
    inference(cnf_transformation,[],[f44]) ).

fof(f69,plain,
    ! [X0,X1] :
      ( ~ sequential(X0,X1)
      | edge(X1) ),
    inference(cnf_transformation,[],[f44]) ).

fof(f70,plain,
    ! [X0,X1] :
      ( ~ sequential(X0,X1)
      | edge(X0) ),
    inference(cnf_transformation,[],[f44]) ).

fof(f71,plain,
    ! [X0,X1] :
      ( head_of(X0) != tail_of(X1)
      | X0 = X1
      | ~ edge(X1)
      | ~ edge(X0)
      | sequential(X0,X1) ),
    inference(cnf_transformation,[],[f44]) ).

fof(f72,plain,
    ! [X2,X3,X0,X1,X4] :
      ( ~ precedes(X2,X3,X4)
      | ~ shortest_path(X0,X1,X4)
      | ~ precedes(X3,X2,X4) ),
    inference(cnf_transformation,[],[f29]) ).

fof(f73,plain,
    ! [X2,X3,X0,X1,X4,X5] :
      ( ~ precedes(X2,X3,X4)
      | ~ shortest_path(X0,X1,X4)
      | head_of(X3) != head_of(X5)
      | tail_of(X2) != tail_of(X5) ),
    inference(cnf_transformation,[],[f29]) ).

fof(f76,plain,
    ! [X2,X0,X1] :
      ( ~ shortest_path(X0,X1,X2)
      | path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f48]) ).

fof(f79,plain,
    ! [X2,X0,X1] :
      ( ~ sequential(X2,X0)
      | ~ sequential(X1,X2)
      | ~ sequential(X0,X1)
      | ~ edge(X2)
      | ~ edge(X1)
      | ~ edge(X0)
      | triangle(X0,X1,X2) ),
    inference(cnf_transformation,[],[f32]) ).

fof(f80,plain,
    ! [X0] :
      ( ~ edge(X0)
      | head_of(X0) != tail_of(X0) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f81,plain,
    ! [X0] :
      ( ~ edge(X0)
      | vertex(tail_of(X0)) ),
    inference(cnf_transformation,[],[f34]) ).

fof(f82,plain,
    ! [X0] :
      ( ~ edge(X0)
      | vertex(head_of(X0)) ),
    inference(cnf_transformation,[],[f34]) ).

fof(f83,plain,
    ! [X1] : ~ sequential(X1,X1),
    inference(equality_resolution,[],[f68]) ).

tcf(c_49,negated_conjecture,
    ! [X0: $i] : ~ triangle(sK2,sK3,X0),
    inference(cnf_transformation,[],[f53]) ).

tcf(c_50,negated_conjecture,
    shortest_path(sK0,sK1,sK4),
    inference(cnf_transformation,[],[f52]) ).

tcf(c_51,negated_conjecture,
    precedes(sK2,sK3,sK4),
    inference(cnf_transformation,[],[f51]) ).

tcf(c_52,negated_conjecture,
    sequential(sK2,sK3),
    inference(cnf_transformation,[],[f50]) ).

tcf(c_53,negated_conjecture,
    complete,
    inference(cnf_transformation,[],[f49]) ).

tcf(c_54,plain,
    ! [X0: $i,X1: $i] :
      ( edge(sK5(X0,X1))
      | ( X0 = X1 )
      | ~ complete
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(cnf_transformation,[],[f59]) ).

tcf(c_56,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( head_of(sK5(X0,X1)) = X1 )
      | ( head_of(sK5(X0,X1)) = X0 )
      | ~ complete
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(cnf_transformation,[],[f57]) ).

tcf(c_57,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X1 )
      | ( head_of(sK5(X0,X1)) = X1 )
      | ~ complete
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(cnf_transformation,[],[f56]) ).

tcf(c_58,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X0 )
      | ( head_of(sK5(X0,X1)) = X0 )
      | ~ complete
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(cnf_transformation,[],[f55]) ).

tcf(c_59,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X1 )
      | ( tail_of(sK5(X0,X1)) = X0 )
      | ~ complete
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(cnf_transformation,[],[f54]) ).

tcf(c_60,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( on_path(X0,X2)
      | ~ path(X3,X4,X2)
      | ~ precedes(X0,X1,X2) ),
    inference(cnf_transformation,[],[f64]) ).

tcf(c_61,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( on_path(X1,X2)
      | ~ path(X3,X4,X2)
      | ~ precedes(X0,X1,X2) ),
    inference(cnf_transformation,[],[f63]) ).

tcf(c_62,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i] :
      ( ~ sequential(X3,X1)
      | ~ sequential(X3,X0)
      | ~ path(X4,X5,X2)
      | ~ precedes(X3,X1,X2)
      | ~ precedes(X0,X1,X2) ),
    inference(cnf_transformation,[],[f62]) ).

tcf(c_65,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( precedes(X3,X4,X2)
      | ~ on_path(X4,X2)
      | ~ on_path(X3,X2)
      | ~ sequential(X3,X4)
      | ~ path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f66]) ).

tcf(c_67,plain,
    ! [X0: $i,X1: $i] :
      ( sequential(X0,X1)
      | ( X0 = X1 )
      | ~ edge(X1)
      | ~ edge(X0)
      | ( head_of(X0) != tail_of(X1) ) ),
    inference(cnf_transformation,[],[f71]) ).

tcf(c_68,plain,
    ! [X0: $i,X1: $i] :
      ( edge(X0)
      | ~ sequential(X0,X1) ),
    inference(cnf_transformation,[],[f70]) ).

tcf(c_69,plain,
    ! [X0: $i,X1: $i] :
      ( edge(X1)
      | ~ sequential(X0,X1) ),
    inference(cnf_transformation,[],[f69]) ).

tcf(c_70,plain,
    ! [X0: $i] : ~ sequential(X0,X0),
    inference(cnf_transformation,[],[f83]) ).

tcf(c_71,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X0) = tail_of(X1) )
      | ~ sequential(X0,X1) ),
    inference(cnf_transformation,[],[f67]) ).

tcf(c_72,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i,X5: $i] :
      ( ~ precedes(X2,X0,X5)
      | ~ shortest_path(X3,X4,X5)
      | ( tail_of(X1) != tail_of(X2) )
      | ( head_of(X0) != head_of(X1) ) ),
    inference(cnf_transformation,[],[f73]) ).

tcf(c_73,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( ~ precedes(X4,X3,X2)
      | ~ precedes(X3,X4,X2)
      | ~ shortest_path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f72]) ).

tcf(c_76,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( path(X0,X1,X2)
      | ~ shortest_path(X0,X1,X2) ),
    inference(cnf_transformation,[],[f76]) ).

tcf(c_79,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( triangle(X0,X1,X2)
      | ~ edge(X2)
      | ~ edge(X1)
      | ~ edge(X0)
      | ~ sequential(X2,X0)
      | ~ sequential(X1,X2)
      | ~ sequential(X0,X1) ),
    inference(cnf_transformation,[],[f79]) ).

tcf(c_80,plain,
    ! [X0: $i] :
      ( ~ edge(X0)
      | ( head_of(X0) != tail_of(X0) ) ),
    inference(cnf_transformation,[],[f80]) ).

tcf(c_81,plain,
    ! [X0: $i] :
      ( vertex(head_of(X0))
      | ~ edge(X0) ),
    inference(cnf_transformation,[],[f82]) ).

tcf(c_82,plain,
    ! [X0: $i] :
      ( vertex(tail_of(X0))
      | ~ edge(X0) ),
    inference(cnf_transformation,[],[f81]) ).

tcf(c_83,plain,
    ~ sequential(sK2,sK2),
    inference(instantiation,[status(thm)],[c_70]) ).

tcf(c_86,plain,
    ( vertex(tail_of(sK2))
    | ~ edge(sK2) ),
    inference(instantiation,[status(thm)],[c_82]) ).

tcf(c_87,plain,
    ( vertex(head_of(sK2))
    | ~ edge(sK2) ),
    inference(instantiation,[status(thm)],[c_81]) ).

tcf(c_88,plain,
    ( ~ edge(sK2)
    | ( head_of(sK2) != tail_of(sK2) ) ),
    inference(instantiation,[status(thm)],[c_80]) ).

tcf(c_98,plain,
    ! [X0: $i,X1: $i] :
      ( edge(sK5(X0,X1))
      | ( X0 = X1 )
      | ~ vertex(X0)
      | ~ vertex(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_54,c_53,c_54]) ).

tcf(c_99,plain,
    ! [X0: $i,X1: $i] :
      ( edge(sK5(X0,X1))
      | ( X0 = X1 )
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(renaming,[status(thm)],[c_98]) ).

tcf(c_101,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( triangle(X0,X1,X2)
      | ~ edge(X2)
      | ~ sequential(X2,X0)
      | ~ sequential(X1,X2)
      | ~ sequential(X0,X1) ),
    inference(global_subsumption_just,[status(thm)],[c_79,c_69,c_68,c_79]) ).

tcf(c_105,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X1 )
      | ( tail_of(sK5(X0,X1)) = X0 )
      | ~ vertex(X0)
      | ~ vertex(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_59,c_53,c_59]) ).

tcf(c_106,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X1 )
      | ( tail_of(sK5(X0,X1)) = X0 )
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(renaming,[status(thm)],[c_105]) ).

tcf(c_108,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X0 )
      | ( head_of(sK5(X0,X1)) = X0 )
      | ~ vertex(X0)
      | ~ vertex(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_58,c_53,c_58]) ).

tcf(c_109,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X0 )
      | ( head_of(sK5(X0,X1)) = X0 )
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(renaming,[status(thm)],[c_108]) ).

tcf(c_110,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X1 )
      | ( head_of(sK5(X0,X1)) = X1 )
      | ~ vertex(X0)
      | ~ vertex(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_57,c_53,c_57]) ).

tcf(c_111,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = X1 )
      | ( head_of(sK5(X0,X1)) = X1 )
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(renaming,[status(thm)],[c_110]) ).

tcf(c_112,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( head_of(sK5(X0,X1)) = X1 )
      | ( head_of(sK5(X0,X1)) = X0 )
      | ~ vertex(X0)
      | ~ vertex(X1) ),
    inference(global_subsumption_just,[status(thm)],[c_56,c_53,c_56]) ).

tcf(c_113,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( head_of(sK5(X0,X1)) = X1 )
      | ( head_of(sK5(X0,X1)) = X0 )
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(renaming,[status(thm)],[c_112]) ).

tcf(c_136,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( triangle(X0,X1,X2)
      | ~ sequential(X2,X0)
      | ~ sequential(X1,X2)
      | ~ sequential(X0,X1) ),
    inference(backward_subsumption_resolution,[status(thm)],[c_101,c_68]) ).

tcf(c_549,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ~ sequential(X3,X1)
      | ~ sequential(X2,X3)
      | ~ sequential(X1,X2)
      | ( X3 != sK3 )
      | ( X2 != sK2 )
      | ( X0 != X1 ) ),
    inference(resolution_lifted,[status(thm)],[c_49,c_136]) ).

tcf(c_550,plain,
    ! [X0: $i] :
      ( ~ sequential(sK2,sK3)
      | ~ sequential(sK3,X0)
      | ~ sequential(X0,sK2) ),
    inference(unflattening,[status(thm)],[c_549]) ).

tcf(c_551,plain,
    ! [X0: $i] :
      ( ~ sequential(X0,sK2)
      | ~ sequential(sK3,X0) ),
    inference(global_subsumption_just,[status(thm)],[c_550,c_52,c_550]) ).

tcf(c_552,plain,
    ! [X0: $i] :
      ( ~ sequential(sK3,X0)
      | ~ sequential(X0,sK2) ),
    inference(renaming,[status(thm)],[c_551]) ).

tcf(c_1432,plain,
    ! [X0: $i] : X0 = X0,
    theory(equality) ).

tcf(c_1434,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( X2 = X0 )
      | ( X2 != X1 )
      | ( X0 != X1 ) ),
    theory(equality) ).

tcf(c_1437,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( sequential(X0,X2)
      | ~ sequential(X1,X3)
      | ( X2 != X3 )
      | ( X0 != X1 ) ),
    theory(equality) ).

tcf(c_1440,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X0) = head_of(X1) )
      | ( X0 != X1 ) ),
    theory(equality) ).

tcf(c_1448,plain,
    sK2 = sK2,
    inference(instantiation,[status(thm)],[c_1432]) ).

tcf(c_2022,plain,
    edge(sK2),
    inference(superposition,[status(thm)],[c_52,c_68]) ).

tcf(c_2029,plain,
    ! [X0: $i,X1: $i] :
      ( on_path(sK2,sK4)
      | ~ path(X0,X1,sK4) ),
    inference(superposition,[status(thm)],[c_51,c_60]) ).

tcf(c_2037,plain,
    edge(sK3),
    inference(superposition,[status(thm)],[c_52,c_69]) ).

tcf(c_2050,plain,
    path(sK0,sK1,sK4),
    inference(superposition,[status(thm)],[c_50,c_76]) ).

tcf(c_2055,plain,
    on_path(sK2,sK4),
    inference(superposition,[status(thm)],[c_2050,c_2029]) ).

tcf(c_2060,plain,
    head_of(sK2) = tail_of(sK3),
    inference(superposition,[status(thm)],[c_52,c_71]) ).

tcf(c_2061,plain,
    ( vertex(head_of(sK2))
    | ~ edge(sK3) ),
    inference(superposition,[status(thm)],[c_2060,c_82]) ).

tcf(c_2062,plain,
    vertex(head_of(sK2)),
    inference(forward_subsumption_resolution,[status(thm)],[c_2061,c_2037]) ).

tcf(c_2067,plain,
    ( ~ edge(sK3)
    | ( head_of(sK2) != head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_2060,c_80]) ).

tcf(c_2068,plain,
    head_of(sK2) != head_of(sK3),
    inference(forward_subsumption_resolution,[status(thm)],[c_2067,c_2037]) ).

tcf(c_2075,plain,
    ! [X0: $i,X1: $i] :
      ( on_path(sK3,sK4)
      | ~ path(X0,X1,sK4) ),
    inference(superposition,[status(thm)],[c_51,c_61]) ).

tcf(c_2083,plain,
    on_path(sK3,sK4),
    inference(superposition,[status(thm)],[c_2050,c_2075]) ).

tcf(c_2094,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ~ sequential(X2,sK3)
      | ~ sequential(X2,sK2)
      | ~ precedes(X2,sK3,sK4)
      | ~ path(X0,X1,sK4) ),
    inference(superposition,[status(thm)],[c_51,c_62]) ).

tcf(c_2105,plain,
    ! [X0: $i,X1: $i] :
      ( ~ precedes(X1,X0,sK4)
      | ~ precedes(X0,X1,sK4) ),
    inference(superposition,[status(thm)],[c_50,c_73]) ).

tcf(c_2145,plain,
    ~ precedes(sK3,sK2,sK4),
    inference(superposition,[status(thm)],[c_51,c_2105]) ).

tcf(c_2166,plain,
    ! [X0: $i] :
      ( ~ sequential(X0,sK3)
      | ~ sequential(X0,sK2)
      | ~ precedes(X0,sK3,sK4) ),
    inference(superposition,[status(thm)],[c_2050,c_2094]) ).

tcf(c_2307,plain,
    ! [X0: $i,X1: $i] :
      ( precedes(X0,X1,sK4)
      | ~ on_path(X1,sK4)
      | ~ on_path(X0,sK4)
      | ~ sequential(X0,X1) ),
    inference(superposition,[status(thm)],[c_2050,c_65]) ).

tcf(c_2345,plain,
    ! [X0: $i] :
      ( ~ on_path(sK3,sK4)
      | ~ on_path(X0,sK4)
      | ~ sequential(X0,sK3)
      | ~ sequential(X0,sK2) ),
    inference(superposition,[status(thm)],[c_2307,c_2166]) ).

tcf(c_2346,plain,
    ( ~ on_path(sK3,sK4)
    | ~ on_path(sK2,sK4)
    | ~ sequential(sK3,sK2) ),
    inference(superposition,[status(thm)],[c_2307,c_2145]) ).

tcf(c_2348,plain,
    ~ sequential(sK3,sK2),
    inference(forward_subsumption_resolution,[status(thm)],[c_2346,c_2083,c_2055]) ).

tcf(c_2353,plain,
    ! [X0: $i] :
      ( ~ on_path(X0,sK4)
      | ~ sequential(X0,sK3)
      | ~ sequential(X0,sK2) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_2345,c_2083]) ).

tcf(c_2572,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X0) = X1 )
      | ( tail_of(sK5(X1,head_of(X0))) = X1 )
      | ( tail_of(sK5(X1,head_of(X0))) = head_of(X0) )
      | ~ vertex(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_81,c_106]) ).

tcf(c_2574,plain,
    ! [X0: $i] :
      ( ( head_of(sK2) = X0 )
      | ( tail_of(sK5(X0,head_of(sK2))) = X0 )
      | ( tail_of(sK5(X0,head_of(sK2))) = head_of(sK2) )
      | ~ vertex(X0) ),
    inference(superposition,[status(thm)],[c_2062,c_106]) ).

tcf(c_2642,plain,
    ! [X0: $i,X1: $i] :
      ( sequential(X0,X1)
      | ~ sequential(sK2,sK3)
      | ( X1 != sK3 )
      | ( X0 != sK2 ) ),
    inference(instantiation,[status(thm)],[c_1437]) ).

tcf(c_2643,plain,
    ( sequential(sK2,sK2)
    | ~ sequential(sK2,sK3)
    | ( sK2 != sK3 )
    | ( sK2 != sK2 ) ),
    inference(instantiation,[status(thm)],[c_2642]) ).

tcf(c_2695,plain,
    ! [X0: $i] :
      ( ( tail_of(X0) = head_of(sK2) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK2))) = head_of(sK2) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK2))) = tail_of(X0) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_82,c_2574]) ).

tcf(c_2757,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X0) = X1 )
      | ( tail_of(sK5(X1,head_of(X0))) = X1 )
      | ( head_of(sK5(X1,head_of(X0))) = X1 )
      | ~ vertex(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_81,c_109]) ).

tcf(c_2788,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X0) = X1 )
      | ( tail_of(sK5(X1,head_of(X0))) = head_of(X0) )
      | ( head_of(sK5(X1,head_of(X0))) = head_of(X0) )
      | ~ vertex(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_81,c_111]) ).

tcf(c_2822,plain,
    ! [X0: $i,X1: $i] :
      ( ( tail_of(X0) = X1 )
      | ( head_of(sK5(X1,tail_of(X0))) = X1 )
      | ( head_of(sK5(X1,tail_of(X0))) = tail_of(X0) )
      | ~ vertex(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_82,c_113]) ).

tcf(c_3045,plain,
    ! [X0: $i] :
      ( ( head_of(X0) = tail_of(X0) )
      | ( head_of(sK5(head_of(X0),tail_of(X0))) = tail_of(X0) )
      | ( head_of(sK5(head_of(X0),tail_of(X0))) = head_of(X0) )
      | ~ vertex(tail_of(X0))
      | ~ vertex(head_of(X0)) ),
    inference(instantiation,[status(thm)],[c_113]) ).

tcf(c_3046,plain,
    ( ( head_of(sK2) = tail_of(sK2) )
    | ( head_of(sK5(head_of(sK2),tail_of(sK2))) = tail_of(sK2) )
    | ( head_of(sK5(head_of(sK2),tail_of(sK2))) = head_of(sK2) )
    | ~ vertex(tail_of(sK2))
    | ~ vertex(head_of(sK2)) ),
    inference(instantiation,[status(thm)],[c_3045]) ).

tcf(c_3153,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = sK3 )
      | ( sK3 != X1 )
      | ( X0 != X1 ) ),
    inference(instantiation,[status(thm)],[c_1434]) ).

tcf(c_3154,plain,
    ( ( sK2 = sK3 )
    | ( sK3 != sK2 )
    | ( sK2 != sK2 ) ),
    inference(instantiation,[status(thm)],[c_3153]) ).

tcf(c_3263,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X1) = tail_of(X0) )
      | ( tail_of(sK5(tail_of(X0),head_of(X1))) = tail_of(X0) )
      | ( head_of(sK5(tail_of(X0),head_of(X1))) = tail_of(X0) )
      | ~ edge(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_82,c_2757]) ).

tcf(c_3264,plain,
    ! [X0: $i] :
      ( ( head_of(X0) = head_of(sK2) )
      | ( tail_of(sK5(head_of(sK2),head_of(X0))) = head_of(sK2) )
      | ( head_of(sK5(head_of(sK2),head_of(X0))) = head_of(sK2) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2062,c_2757]) ).

tcf(c_3328,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X1) = tail_of(X0) )
      | ( tail_of(sK5(tail_of(X0),head_of(X1))) = tail_of(X0) )
      | ( tail_of(sK5(tail_of(X0),head_of(X1))) = head_of(X1) )
      | ~ edge(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_82,c_2572]) ).

tcf(c_3454,plain,
    ! [X0: $i] :
      ( ( tail_of(X0) = head_of(sK2) )
      | ( head_of(sK5(head_of(sK2),tail_of(X0))) = head_of(sK2) )
      | ( head_of(sK5(head_of(sK2),tail_of(X0))) = tail_of(X0) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2062,c_2822]) ).

tcf(c_3548,plain,
    ( ( head_of(sK2) = head_of(sK3) )
    | ( tail_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_2037,c_3264]) ).

tcf(c_3550,plain,
    ( ( tail_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_3548,c_2068]) ).

tcf(c_3580,plain,
    ! [X0: $i] :
      ( sequential(X0,sK5(head_of(sK2),head_of(sK3)))
      | ( sK5(head_of(sK2),head_of(sK3)) = X0 )
      | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) )
      | ~ edge(X0)
      | ~ edge(sK5(head_of(sK2),head_of(sK3)))
      | ( head_of(X0) != head_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_3550,c_67]) ).

tcf(c_3781,plain,
    ( ( head_of(sK2) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = head_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_2022,c_2695]) ).

tcf(c_3817,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X1) = tail_of(X0) )
      | ( tail_of(sK5(tail_of(X0),head_of(X1))) = head_of(X1) )
      | ( head_of(sK5(tail_of(X0),head_of(X1))) = head_of(X1) )
      | ~ edge(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_82,c_2788]) ).

tcf(c_3818,plain,
    ! [X0: $i] :
      ( ( head_of(X0) = head_of(sK2) )
      | ( tail_of(sK5(head_of(sK2),head_of(X0))) = head_of(X0) )
      | ( head_of(sK5(head_of(sK2),head_of(X0))) = head_of(X0) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2062,c_2788]) ).

tcf(c_3992,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = head_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = tail_of(sK2) ) ),
    inference(global_subsumption_just,[status(thm)],[c_3781,c_88,c_2022,c_3781]) ).

tcf(c_3993,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = head_of(sK2) ) ),
    inference(renaming,[status(thm)],[c_3992]) ).

tcf(c_4004,plain,
    ( vertex(tail_of(sK2))
    | ( tail_of(sK5(tail_of(sK2),head_of(sK2))) = head_of(sK2) )
    | ~ edge(sK5(tail_of(sK2),head_of(sK2))) ),
    inference(superposition,[status(thm)],[c_3993,c_82]) ).

tcf(c_4061,plain,
    vertex(tail_of(sK2)),
    inference(global_subsumption_just,[status(thm)],[c_4004,c_86,c_2022]) ).

tcf(c_4064,plain,
    ! [X0: $i] :
      ( ( head_of(X0) = tail_of(sK2) )
      | ( tail_of(sK5(tail_of(sK2),head_of(X0))) = head_of(X0) )
      | ( head_of(sK5(tail_of(sK2),head_of(X0))) = head_of(X0) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_4061,c_2788]) ).

tcf(c_4190,plain,
    ! [X0: $i,X1: $i] :
      ( edge(sK5(head_of(X0),X1))
      | ( head_of(X0) = X1 )
      | ~ vertex(X1)
      | ~ vertex(head_of(X0)) ),
    inference(instantiation,[status(thm)],[c_99]) ).

tcf(c_4774,plain,
    ( ( head_of(sK2) = tail_of(sK2) )
    | ( head_of(sK5(head_of(sK2),tail_of(sK2))) = tail_of(sK2) )
    | ( head_of(sK5(head_of(sK2),tail_of(sK2))) = head_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_2022,c_3454]) ).

tcf(c_4813,plain,
    ( ( head_of(sK5(head_of(sK2),tail_of(sK2))) = head_of(sK2) )
    | ( head_of(sK5(head_of(sK2),tail_of(sK2))) = tail_of(sK2) ) ),
    inference(global_subsumption_just,[status(thm)],[c_4774,c_86,c_87,c_88,c_2022,c_3046]) ).

tcf(c_4814,plain,
    ( ( head_of(sK5(head_of(sK2),tail_of(sK2))) = tail_of(sK2) )
    | ( head_of(sK5(head_of(sK2),tail_of(sK2))) = head_of(sK2) ) ),
    inference(renaming,[status(thm)],[c_4813]) ).

tcf(c_4820,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( ( head_of(sK5(head_of(sK2),tail_of(sK2))) = head_of(sK2) )
      | ~ shortest_path(X3,X4,X2)
      | ~ precedes(X1,sK5(head_of(sK2),tail_of(sK2)),X2)
      | ( tail_of(X0) != tail_of(X1) )
      | ( head_of(X0) != tail_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_4814,c_72]) ).

tcf(c_4880,plain,
    ( ( head_of(sK2) = head_of(sK3) )
    | ( tail_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_2037,c_3818]) ).

tcf(c_4882,plain,
    ( ( tail_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_4880,c_2068]) ).

tcf(c_4911,plain,
    ( vertex(head_of(sK3))
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK5(head_of(sK2),head_of(sK3))) ),
    inference(superposition,[status(thm)],[c_4882,c_82]) ).

tcf(c_4948,plain,
    ! [X0: $i] :
      ( sequential(sK3,X0)
      | ( sK3 = X0 )
      | ~ edge(sK3)
      | ~ edge(X0)
      | ( head_of(sK3) != tail_of(X0) ) ),
    inference(instantiation,[status(thm)],[c_67]) ).

tcf(c_4949,plain,
    ( sequential(sK3,sK2)
    | ( sK3 = sK2 )
    | ~ edge(sK3)
    | ~ edge(sK2)
    | ( head_of(sK3) != tail_of(sK2) ) ),
    inference(instantiation,[status(thm)],[c_4948]) ).

tcf(c_6282,plain,
    ! [X0: $i,X1: $i] :
      ( edge(sK5(head_of(X0),head_of(X1)))
      | ( head_of(X0) = head_of(X1) )
      | ~ vertex(head_of(X1))
      | ~ vertex(head_of(X0)) ),
    inference(instantiation,[status(thm)],[c_4190]) ).

tcf(c_7098,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_2037,c_4064]) ).

tcf(c_7114,plain,
    ( ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(global_subsumption_just,[status(thm)],[c_7098,c_52,c_83,c_1448,c_2022,c_2037,c_2348,c_2643,c_3154,c_4949,c_7098]) ).

tcf(c_7115,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(renaming,[status(thm)],[c_7114]) ).

tcf(c_7121,plain,
    ! [X0: $i] :
      ( sequential(X0,sK5(tail_of(sK2),head_of(sK3)))
      | ( sK5(tail_of(sK2),head_of(sK3)) = X0 )
      | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
      | ~ edge(X0)
      | ~ edge(sK5(tail_of(sK2),head_of(sK3)))
      | ( head_of(X0) != head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_7115,c_67]) ).

tcf(c_7623,plain,
    ! [X0: $i] :
      ( ( tail_of(X0) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK3))) = tail_of(X0) )
      | ( head_of(sK5(tail_of(X0),head_of(sK3))) = tail_of(X0) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2037,c_3263]) ).

tcf(c_7865,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_2022,c_7623]) ).

tcf(c_7884,plain,
    ( ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) ) ),
    inference(global_subsumption_just,[status(thm)],[c_7865,c_52,c_83,c_1448,c_2022,c_2037,c_2348,c_2643,c_3154,c_4949,c_7865]) ).

tcf(c_7885,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) ) ),
    inference(renaming,[status(thm)],[c_7884]) ).

tcf(c_7906,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_7885,c_7115]) ).

tcf(c_7968,plain,
    ( ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) ) ),
    inference(global_subsumption_just,[status(thm)],[c_7906,c_52,c_83,c_1448,c_2022,c_2037,c_2348,c_2643,c_3154,c_4949,c_7906]) ).

tcf(c_7969,plain,
    ( ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(renaming,[status(thm)],[c_7968]) ).

tcf(c_7977,plain,
    ! [X0: $i] :
      ( sequential(sK5(tail_of(sK2),head_of(sK3)),X0)
      | ( sK5(tail_of(sK2),head_of(sK3)) = X0 )
      | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
      | ~ edge(X0)
      | ~ edge(sK5(tail_of(sK2),head_of(sK3)))
      | ( tail_of(X0) != tail_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_7969,c_67]) ).

tcf(c_8278,plain,
    ! [X0: $i] :
      ( ( tail_of(X0) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK3))) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK3))) = tail_of(X0) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2037,c_3328]) ).

tcf(c_8534,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_2022,c_8278]) ).

tcf(c_8572,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) ) ),
    inference(global_subsumption_just,[status(thm)],[c_8534,c_52,c_83,c_1448,c_2022,c_2037,c_2348,c_2643,c_3154,c_4949,c_8534]) ).

tcf(c_8573,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(renaming,[status(thm)],[c_8572]) ).

tcf(c_9670,plain,
    ! [X0: $i] :
      ( ( tail_of(X0) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK3))) = head_of(sK3) )
      | ( head_of(sK5(tail_of(X0),head_of(sK3))) = head_of(sK3) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2037,c_3817]) ).

tcf(c_9899,plain,
    ! [X0: $i,X1: $i] :
      ( ( X0 = X1 )
      | ( tail_of(sK5(X0,X1)) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(sK5(X0,X1)),head_of(sK3))) = head_of(sK3) )
      | ( head_of(sK5(tail_of(sK5(X0,X1)),head_of(sK3))) = head_of(sK3) )
      | ~ vertex(X1)
      | ~ vertex(X0) ),
    inference(superposition,[status(thm)],[c_99,c_9670]) ).

tcf(c_10473,plain,
    ( vertex(head_of(sK3))
    | ~ edge(sK3) ),
    inference(instantiation,[status(thm)],[c_81]) ).

tcf(c_13199,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ( head_of(sK5(head_of(sK2),tail_of(sK2))) = head_of(sK2) )
      | ~ shortest_path(X2,X3,X1)
      | ~ precedes(X0,sK5(head_of(sK2),tail_of(sK2)),X1)
      | ( head_of(sK3) != tail_of(sK2) )
      | ( tail_of(X0) != head_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_2060,c_4820]) ).

tcf(c_14794,plain,
    head_of(sK3) != tail_of(sK2),
    inference(global_subsumption_just,[status(thm)],[c_13199,c_52,c_83,c_1448,c_2022,c_2037,c_2348,c_2643,c_3154,c_4949]) ).

tcf(c_16077,plain,
    ( sequential(sK2,sK5(head_of(sK2),head_of(sK3)))
    | ( sK5(head_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) )
    | ~ edge(sK2)
    | ~ edge(sK5(head_of(sK2),head_of(sK3))) ),
    inference(equality_resolution,[status(thm)],[c_3580]) ).

tcf(c_16078,plain,
    ( sequential(sK2,sK5(head_of(sK2),head_of(sK3)))
    | ( sK5(head_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) )
    | ~ edge(sK5(head_of(sK2),head_of(sK3))) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_16077,c_2022]) ).

tcf(c_16671,plain,
    ! [X0: $i] :
      ( edge(sK5(head_of(X0),head_of(sK3)))
      | ( head_of(X0) = head_of(sK3) )
      | ~ vertex(head_of(sK3))
      | ~ vertex(head_of(X0)) ),
    inference(instantiation,[status(thm)],[c_6282]) ).

tcf(c_16674,plain,
    ( edge(sK5(head_of(sK2),head_of(sK3)))
    | ( head_of(sK2) = head_of(sK3) )
    | ~ vertex(head_of(sK3))
    | ~ vertex(head_of(sK2)) ),
    inference(instantiation,[status(thm)],[c_16671]) ).

tcf(c_16744,plain,
    ( sequential(sK2,sK5(head_of(sK2),head_of(sK3)))
    | ( sK5(head_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) ) ),
    inference(global_subsumption_just,[status(thm)],[c_16078,c_87,c_2022,c_2037,c_2068,c_10473,c_16078,c_16674]) ).

tcf(c_16758,plain,
    ( edge(sK5(head_of(sK2),head_of(sK3)))
    | ( sK5(head_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK2) ) ),
    inference(superposition,[status(thm)],[c_16744,c_69]) ).

tcf(c_16887,plain,
    edge(sK5(head_of(sK2),head_of(sK3))),
    inference(global_subsumption_just,[status(thm)],[c_16758,c_87,c_2022,c_2037,c_2068,c_10473,c_16674]) ).

tcf(c_16889,plain,
    ( vertex(head_of(sK3))
    | ( head_of(sK5(head_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(backward_subsumption_resolution,[status(thm)],[c_4911,c_16887]) ).

tcf(c_18342,plain,
    vertex(head_of(sK3)),
    inference(global_subsumption_just,[status(thm)],[c_16889,c_2037,c_10473]) ).

tcf(c_25601,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(sK5(tail_of(X0),head_of(X1))) = head_of(X1) )
      | ( sK5(tail_of(X0),head_of(X1)) != X1 ) ),
    inference(instantiation,[status(thm)],[c_1440]) ).

tcf(c_26738,plain,
    ( sequential(sK3,sK5(tail_of(sK2),head_of(sK3)))
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK3 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK3)
    | ~ edge(sK5(tail_of(sK2),head_of(sK3))) ),
    inference(equality_resolution,[status(thm)],[c_7121]) ).

tcf(c_26739,plain,
    ( sequential(sK3,sK5(tail_of(sK2),head_of(sK3)))
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK3 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK5(tail_of(sK2),head_of(sK3))) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_26738,c_2037]) ).

tcf(c_26882,plain,
    ( sequential(sK5(tail_of(sK2),head_of(sK3)),sK2)
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK2)
    | ~ edge(sK5(tail_of(sK2),head_of(sK3))) ),
    inference(equality_resolution,[status(thm)],[c_7977]) ).

tcf(c_26883,plain,
    ( sequential(sK5(tail_of(sK2),head_of(sK3)),sK2)
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK5(tail_of(sK2),head_of(sK3))) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_26882,c_2022]) ).

tcf(c_31088,plain,
    ( ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK5(tail_of(sK2),head_of(sK3)))
    | ~ on_path(sK5(tail_of(sK2),head_of(sK3)),sK4)
    | ~ sequential(sK5(tail_of(sK2),head_of(sK3)),sK3) ),
    inference(superposition,[status(thm)],[c_26883,c_2353]) ).

tcf(c_31089,plain,
    ( ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK5(tail_of(sK2),head_of(sK3)))
    | ~ sequential(sK3,sK5(tail_of(sK2),head_of(sK3))) ),
    inference(superposition,[status(thm)],[c_26883,c_552]) ).

tcf(c_31125,plain,
    ( ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ sequential(sK3,sK5(tail_of(sK2),head_of(sK3))) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_31089,c_69]) ).

tcf(c_31135,plain,
    ( ( sK5(tail_of(sK2),head_of(sK3)) = sK3 )
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ edge(sK5(tail_of(sK2),head_of(sK3))) ),
    inference(superposition,[status(thm)],[c_26739,c_31125]) ).

tcf(c_31184,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK3 )
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ vertex(tail_of(sK2))
    | ~ vertex(head_of(sK3)) ),
    inference(superposition,[status(thm)],[c_99,c_31135]) ).

tcf(c_31185,plain,
    ( ( sK5(tail_of(sK2),head_of(sK3)) = sK3 )
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_31184,c_14794,c_4061,c_18342]) ).

tcf(c_43110,plain,
    ! [X0: $i] :
      ( ( head_of(sK5(tail_of(X0),head_of(sK3))) = head_of(sK3) )
      | ( sK5(tail_of(X0),head_of(sK3)) != sK3 ) ),
    inference(instantiation,[status(thm)],[c_25601]) ).

tcf(c_43114,plain,
    ( ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( sK5(tail_of(sK2),head_of(sK3)) != sK3 ) ),
    inference(instantiation,[status(thm)],[c_43110]) ).

tcf(c_58480,plain,
    ( ( sK5(tail_of(sK2),head_of(sK3)) = sK2 )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) ) ),
    inference(global_subsumption_just,[status(thm)],[c_31088,c_31185,c_43114]) ).

tcf(c_63398,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X0) = X1 )
      | ( tail_of(sK5(X1,head_of(X0))) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(sK5(X1,head_of(X0))),head_of(sK3))) = head_of(sK3) )
      | ( head_of(sK5(tail_of(sK5(X1,head_of(X0))),head_of(sK3))) = head_of(sK3) )
      | ~ vertex(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_81,c_9899]) ).

tcf(c_64283,plain,
    ! [X0: $i,X1: $i] :
      ( ( head_of(X1) = tail_of(X0) )
      | ( tail_of(sK5(tail_of(X0),head_of(X1))) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(sK5(tail_of(X0),head_of(X1))),head_of(sK3))) = head_of(sK3) )
      | ( head_of(sK5(tail_of(sK5(tail_of(X0),head_of(X1))),head_of(sK3))) = head_of(sK3) )
      | ~ edge(X1)
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_82,c_63398]) ).

tcf(c_68227,plain,
    ! [X0: $i] :
      ( ( tail_of(X0) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(X0),head_of(sK3))) = head_of(sK3) )
      | ( tail_of(sK5(tail_of(sK5(tail_of(X0),head_of(sK3))),head_of(sK3))) = head_of(sK3) )
      | ( head_of(sK5(tail_of(sK5(tail_of(X0),head_of(sK3))),head_of(sK3))) = head_of(sK3) )
      | ~ edge(X0) ),
    inference(superposition,[status(thm)],[c_2037,c_64283]) ).

tcf(c_68984,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( tail_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) = head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_2022,c_68227]) ).

tcf(c_68994,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( tail_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) = head_of(sK3) ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_68984,c_14794]) ).

tcf(c_69042,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) = head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_8573,c_68994]) ).

tcf(c_69141,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ( head_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) = head_of(sK3) ) ),
    inference(forward_subsumption_resolution,[status(thm)],[c_69042,c_14794]) ).

tcf(c_69154,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
      | ~ precedes(X0,X1,X4)
      | ~ shortest_path(X2,X3,X4)
      | ( head_of(X1) != head_of(sK3) )
      | ( tail_of(sK5(tail_of(sK5(tail_of(sK2),head_of(sK3))),head_of(sK3))) != tail_of(X0) ) ),
    inference(superposition,[status(thm)],[c_69141,c_72]) ).

tcf(c_70745,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i,X4: $i] :
      ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
      | ~ precedes(X1,X0,X4)
      | ~ shortest_path(X2,X3,X4)
      | ( tail_of(X1) != tail_of(sK2) )
      | ( head_of(X0) != head_of(sK3) ) ),
    inference(superposition,[status(thm)],[c_8573,c_69154]) ).

tcf(c_72246,plain,
    ! [X0: $i,X1: $i,X2: $i,X3: $i] :
      ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
      | ~ precedes(X0,sK3,X3)
      | ~ shortest_path(X1,X2,X3)
      | ( tail_of(X0) != tail_of(sK2) ) ),
    inference(equality_resolution,[status(thm)],[c_70745]) ).

tcf(c_72334,plain,
    ! [X0: $i,X1: $i,X2: $i] :
      ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
      | ~ precedes(sK2,sK3,X2)
      | ~ shortest_path(X0,X1,X2) ),
    inference(equality_resolution,[status(thm)],[c_72246]) ).

tcf(c_72550,plain,
    ( ( tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3) )
    | ~ precedes(sK2,sK3,sK4) ),
    inference(superposition,[status(thm)],[c_50,c_72334]) ).

tcf(c_72551,plain,
    tail_of(sK5(tail_of(sK2),head_of(sK3))) = head_of(sK3),
    inference(forward_subsumption_resolution,[status(thm)],[c_72550,c_51]) ).

tcf(c_72554,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2) ) ),
    inference(demodulation,[status(thm)],[c_7885,c_72551]) ).

tcf(c_72555,plain,
    head_of(sK5(tail_of(sK2),head_of(sK3))) = tail_of(sK2),
    inference(forward_subsumption_resolution,[status(thm)],[c_72554,c_14794]) ).

tcf(c_72557,plain,
    ( ( head_of(sK3) = tail_of(sK2) )
    | ( sK5(tail_of(sK2),head_of(sK3)) = sK2 ) ),
    inference(demodulation,[status(thm)],[c_58480,c_72555]) ).

tcf(c_72670,plain,
    sK5(tail_of(sK2),head_of(sK3)) = sK2,
    inference(forward_subsumption_resolution,[status(thm)],[c_72557,c_14794]) ).

tcf(c_72673,plain,
    head_of(sK3) = tail_of(sK2),
    inference(light_normalisation,[status(thm)],[c_72551,c_72670]) ).

tcf(c_72674,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[c_72673,c_14794]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : GRA008+1 : TPTP v9.3.1. Bugfixed v3.2.0.
% 0.00/0.05  % Command  : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.13/0.38  % Computer : n009.cluster.edu
% 0.13/0.38  % Model    : x86_64 x86_64
% 0.13/0.38  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.38  % Memory   : 8046.5625MB
% 0.13/0.38  % OS       : Linux 6.8.0-71-generic
% 0.13/0.39  % CPULimit : 300
% 0.13/0.39  % WCLimit  : 300
% 0.13/0.39  % DateTime : Wed Sep 23 12:43:43 UTC 2026
% 0.13/0.39  % CPUTime  : 
% 0.13/0.39  Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.13/0.43  Running first-order theorem proving
% 0.13/0.43  Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.44  
% 0.13/0.44  % ======== iProver multi-core TPTP/SMT =========
% 0.13/0.44  
% 0.13/0.44  % Detected problem language: tptp
% 0.13/0.46  % Proving...
% 31.75/5.41  % SZS status Started for theBenchmark.p
% 31.75/5.41  % SZS status Theorem for theBenchmark.p
% 31.75/5.41  
% 31.75/5.41  %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 31.75/5.41  
% 31.75/5.41  % ------  iProver source info
% 31.75/5.41  
% 31.75/5.41  % git: date: 2026-07-19 20:42:38 +0200
% 31.75/5.41  % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 31.75/5.41  % git: non_committed_changes: false
% 31.75/5.41  
% 31.75/5.41  % ------ Parsing...
% 31.75/5.41  % ------ Clausification by vclausify_rel  & Parsing by iProver...% 
% 31.75/5.41  
% 31.75/5.41  % ------ Preprocessing... sup_sim: 0  sf_s  rm: 2 0s  sf_e  pe_s  pe:1:0s pe_e  sup_sim: 0  sf_s  rm: 2 0s  sf_e  pe_s  pe_e % 
% 31.75/5.41  
% 31.75/5.41  % ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e % 
% 31.75/5.41  
% 31.75/5.41  % ------ Preprocessing... sf_s  rm: 1 0s  sf_e  sf_s  rm: 0 0s  sf_e 
% 31.75/5.41  % ------ Proving...
% 31.75/5.41  % ------ Problem Properties 
% 31.75/5.41  
% 31.75/5.41  % 
% 31.75/5.41  % clauses                               32
% 31.75/5.41  % conjectures                           3
% 31.75/5.41  % EPR                                   15
% 31.75/5.41  % Horn                                  22
% 31.75/5.41  % unary                                 5
% 31.75/5.41  % binary                                8
% 31.75/5.41  % lits                                  104
% 31.75/5.41  % lits eq                               26
% 31.75/5.41  % fd_pure                               0
% 31.75/5.41  % fd_pseudo                             0
% 31.75/5.41  % fd_cond                               0
% 31.75/5.41  % fd_pseudo_cond                        5
% 31.75/5.41  % AC symbols                            0
% 31.75/5.41  
% 31.75/5.41  % ------ Schedule dynamic 5 is on 
% 31.75/5.41  
% 31.75/5.41  % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 31.75/5.41  
% 31.75/5.41  
% 31.75/5.41  % ------ 
% 31.75/5.41  % Current options:
% 31.75/5.41  % ------ 
% 31.75/5.41  
% 31.75/5.41  
% 31.75/5.41  % 
% 31.75/5.41  
% 31.75/5.41  % ------ Proving...
% 31.75/5.41  % 
% 31.75/5.41  
% 31.75/5.41  % SZS status Theorem for theBenchmark.p
% 31.75/5.41  
% 31.75/5.41  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 31.75/5.42  
% 31.75/5.42  
%------------------------------------------------------------------------------