sig
type t
val pretty : Format.formatter -> State_imp.t -> unit
val empty : unit -> State_imp.t
val singleton : Cvalue.Model.t -> State_imp.t
val is_empty : State_imp.t -> bool
val length : State_imp.t -> int
exception Unchanged
val merge_set_return_new : State_set.t -> State_imp.t -> State_set.t
val fold : (Cvalue.Model.t -> 'a -> 'a) -> State_imp.t -> 'a -> 'a
val iter : (Cvalue.Model.t -> unit) -> State_imp.t -> unit
val exists : (Cvalue.Model.t -> bool) -> State_imp.t -> bool
val join : State_imp.t -> Cvalue.Model.t
val to_set : State_imp.t -> State_set.t
val to_list : State_imp.t -> Cvalue.Model.t list
end