val trace : ?msg:string -> int -> int -> StateSet.t -> StateSet.t -> unit
-(** [trace nid round d t msg] records a the message [msg] together with the a node preorder
- [nid], the [round], the [d]one set and the [t]odo set *)
+(** [trace nid round d t msg] records the message [msg] together
+ with the a node preorder [nid], the [round], the [d]one set and
+ the [t]odo set *)
val finalize_node : int -> int -> bool -> unit
val gen_trace : Ata.t -> (module Tree.S with type t = 'a) -> 'a -> unit