(** ** Properties of [loadbytes]. *)
(** [loadbytes] succeeds if and only if we have read permissions on the accessed memory area. *)

(** [loadbytes] returns a list of length [n] (the number of bytes read). *)
Axiom loadbytes_length:
forall m b ofs n bytes,
loadbytes m b ofs n = Some bytes ->
length bytes = nat_of_Z n.