+(* Note that we do not consider the nil nodes *)
+
+exception Oracle_fail
+exception Over_max_fail
+exception Max_fail
+
+(* Build the Oracle *)
+let rec bu_oracle asta run tree tnode =
+ let init_set node =
+ let set = (StateSet.empty,StateSet.empty) in
+ NodeHash.add run node set
+ and node = Tree.preorder tree tnode in
+ if (Tree.is_leaf tree tnode)
+ then
+ if not (tnode == Tree.nil)
+ then
+ init_set node
+ else ()
+ else
+ let tfnode = Tree.first_child tree tnode
+ and tnnode = Tree.next_sibling tree tnode in
+ begin
+ bu_oracle asta run tree tfnode;
+ bu_oracle asta run tree tnnode;
+ let (fnode,nnode) =
+ (Tree.preorder tree tfnode, Tree.preorder tree tnnode) in
+ let q_rec n =
+ try NodeHash.find run n
+ with Not_found -> (StateSet.empty,StateSet.empty) in
+ let (_,qf),(_,qn) = q_rec fnode,q_rec nnode in
+ let lab = Tree.tag tree tnode in
+ let _,list_tr = Asta.transitions_lab asta lab in (* only take reco. *)
+ let result_set = ref StateSet.empty in
+ let rec result = function
+ | [] -> ()
+ | (q,form) :: tl ->
+ if Formula.eval_form (qf,qn) form
+ then begin
+ result_set := (StateSet.add q (!result_set));
+ result tl; end
+ else result tl in
+ result list_tr;
+ NodeHash.add run node (StateSet.empty, !result_set)
+ (* Do not remove elt in Hahs (the old one would appear) *)
+ end
+
+(* Build the over-approx. of the maximal run *)
+let rec bu_over_max asta run tree node =
+ ()
+
+(* Build the maximal run *)
+let rec tp_max asta run tree node =
+ ()
+