open Preamble

open BitVectorTrie

open Graphs

open Order

open Registers

open FrontEndVal

open Hide

open ByteValues

open GenMem

open FrontEndMem

open Division

open Z

open BitVectorZ

open Pointers

open Coqlib

open Values

open FrontEndOps

open CostLabel

open Proper

open PositiveMap

open Deqsets

open ErrorMessages

open PreIdentifiers

open Errors

open Extralib

open Lists

open Positive

open Identifiers

open Exp

open Arithmetic

open Vector

open Div_and_mod

open Util

open FoldStuff

open BitVector

open Jmeq

open Russell

open List

open Setoids

open Monad

open Option

open Extranat

open Bool

open Relations

open Nat

open Integers

open Types

open AST

open Hints_declaration

open Core_notation

open Pts

open Logic

open RTLabs_syntax

val is_cost_label : RTLabs_syntax.statement -> Bool.bool

val cost_label_of :
  RTLabs_syntax.statement -> CostLabel.costlabel Types.option

val well_cost_labelled_statement :
  RTLabs_syntax.statement Graphs.graph -> RTLabs_syntax.statement ->
  Bool.bool

val successors : RTLabs_syntax.statement -> Graphs.label List.list