(***********************************************************************)
(* *)
-(* Lucca Hirschi, ? *)
-(* ? *)
+(* TAToo *)
+(* *)
+(* Lucca Hirschi, LRI UMR8623 *)
+(* Université Paris-Sud & CNRS *)
(* *)
(* Copyright 2010-2012 Université Paris-Sud and Centre National de la *)
(* Recherche Scientifique. All rights reserved. This file is *)
(* *)
(***********************************************************************)
+INCLUDE "utils.ml"
+
module Node =
struct
type t = int
let hash n = n
- let compare n1 n2 = n1 - n2
- let equal n1 n2 = n1 = n2
+ let compare = (-)
+ let equal = (=)
end
module NodeHash = Hashtbl.Make (Node)
type t = (StateSet.t*StateSet.t) NodeHash.t
-(** Map from node to query and recognizing states *)
-
+(** Map from nodes to query and recognizing states *)
+(* Note that we do not consider nil nodes *)
+
+exception Oracle_fail
+exception Over_max_fail
+exception Max_fail
+
+
+(* Hash Consign modules *)
+open Hconsed_run
+module HashOracle = Hashtbl.Make(Oracle_fixpoint)
+module HashRun = Hashtbl.Make(Run_fixpoint)
+
+(* Mapped sets for leaves *)
+let map_leaf asta = (Asta.bot_states_s asta, StateSet.empty)
+
+(* Build the Oracle *)
+let rec bu_oracle asta run tree tnode hashOracle hashEval =
+ let node = Tree.preorder tree tnode in
+ if Tree.is_leaf tree tnode
+ then
+ if tnode == Tree.nil
+ then ()
+ else NodeHash.add run node (map_leaf asta)
+ else
+ let tfnode = Tree.first_child_x tree tnode
+ and tnnode = Tree.next_sibling tree tnode in
+ let fnode,nnode = (* their preorders *)
+ (Tree.preorder tree tfnode, Tree.preorder tree tnnode) in
+ begin
+ bu_oracle asta run tree tfnode hashOracle hashEval;
+ bu_oracle asta run tree tnnode hashOracle hashEval;
+ (* add states which satisfy a transition *)
+ let rec result set qfr qnr flag = function
+ | [] -> set,flag
+ | (q,form) :: tl ->
+ if Formula.eval_form (set,qfr,qnr) form hashEval
+ then
+ if StateSet.mem q set
+ then result set qfr qnr 0 tl
+ else result (StateSet.add q set) qfr qnr 1 tl
+ else result set qfr qnr 0 tl in
+ (* compute the fixed point of states of node *)
+ let rec fix_point set_i qfr qnr list_tr t =
+ try HashOracle.find hashOracle (set_i, qfr, qnr, list_tr, t)
+ with _ ->
+ let set,flag = result set_i qfr qnr 0 list_tr in
+ HashOracle.add hashOracle (set_i,qfr,qnr,list_tr,t) (set); (* todo: Think about this position *)
+ if flag = 0
+ then set
+ else fix_point set qfr qnr list_tr t in
+ let q_rec n = (* compute the set for child/sibling *)
+ try NodeHash.find run n
+ with Not_found -> map_leaf asta in
+ let (_,qfr),(_,qnr) = q_rec fnode,q_rec nnode (* computed in rec call *)
+ and lab = Tree.tag tree tnode in
+ let _,list_tr = Asta.transitions_lab asta lab in (*only reco. tran.*)
+ NodeHash.add run node (StateSet.empty,
+ fix_point StateSet.empty qfr qnr list_tr lab)
+ end
+
+(* Build the over-approx. of the maximal run *)
+let rec bu_over_max asta run tree tnode hashOver hashInfer =
+ if (Tree.is_leaf tree tnode) (* BU_oracle has already created the map *)
+ then
+ ()
+ else
+ let tfnode = Tree.first_child_x tree tnode
+ and tnnode = Tree.next_sibling tree tnode in
+ begin
+ bu_over_max asta run tree tfnode hashOver hashInfer;
+ bu_over_max asta run tree tnnode hashOver hashInfer;
+ let (fnode,nnode) =
+ (Tree.preorder tree tfnode, Tree.preorder tree tnnode)
+ and node = Tree.preorder tree tnode in
+ let q_rec n =
+ try NodeHash.find run n
+ with Not_found -> map_leaf asta 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 (* only take query st. *)
+ and _,resultr = try NodeHash.find run node
+ with _ -> raise Over_max_fail in
+ let rec result set qf qn flag list_tr = function
+ | [] -> if flag = 0 then set else result set qf qn 0 list_tr list_tr
+ | (q,form) :: tl ->
+ if StateSet.mem q set
+ then result set qf qn 0 list_tr tl
+ else if Formula.infer_form (set,resultr) qf qn form hashInfer
+ then result (StateSet.add q set) qf qn 1 list_tr tl
+ else result set qf qn 0 list_tr tl in
+ let result_set () =
+ try HashRun.find hashOver ((StateSet.empty,resultr),qf,qn,list_tr,lab)
+ with _ -> let res = result StateSet.empty qf qn 0 list_tr list_tr in
+ HashRun.add hashOver
+ ((StateSet.empty,resultr), qf,qn,list_tr,lab) res;
+ res in
+ (* we keep the old recognizing states set *)
+ NodeHash.replace run node (result_set(), resultr)
+ end
+
+
+(* Build the maximal run *)
+let rec tp_max asta run tree tnode hashMax hashInfer =
+ if (Tree.is_leaf tree tnode) (* BU_oracle has already created the map *)
+ then
+ ()
+ else
+ let node = Tree.preorder tree tnode
+ and tfnode = Tree.first_child_x tree tnode
+ and tnnode = Tree.next_sibling tree tnode in
+ let (fnode,nnode) =
+ (Tree.preorder tree tfnode, Tree.preorder tree tnnode) in
+ begin
+ if tnode == Tree.root tree (* we must intersect with top states *)
+ then let setq,_ = try NodeHash.find run node
+ with _ -> raise Max_fail in
+ NodeHash.replace run node
+ ((StateSet.inter (Asta.top_states_s asta) setq),StateSet.empty)
+ else ();
+ let q_rec n =
+ try NodeHash.find run n
+ with Not_found -> map_leaf asta 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 query. *)
+ let (self_q,self_r) = try NodeHash.find run node
+ with Not_found -> raise Max_fail in
+
+ (* We must compute again accepting states from self transitions since
+ previous calls of tp_max may remove them *)
+ let rec result_q self_q queue = function (* for initializing the queue *)
+ | [] -> self_q,queue
+ | (q,form) :: tl ->
+ if (StateSet.mem q self_q)
+ then begin
+ let q_cand,_,_ = Formula.st form in
+ StateSet.iter (fun x -> Queue.push x queue) q_cand;
+ result_q (StateSet.add q self_q) queue tl;
+ end
+ else result_q self_q queue tl
+ and result_st_q self_q queue flag = function (*for computing the fixed p*)
+ | [] -> flag,queue
+ | form :: tl ->
+ if Formula.infer_form (self_q,self_r) qf qn form hashInfer
+ then begin
+ let q_cand,_,_ = Formula.st form in
+ StateSet.iter (fun x -> Queue.push x queue) q_cand;
+ result_st_q self_q queue 1 tl;
+ end
+ else result_st_q self_q queue flag tl in
+ let rec comp_acc_self self_q_i queue = (* compute the fixed point *)
+ if Queue.is_empty queue (* todo: to be hconsigned? *)
+ then self_q_i
+ else
+ let q = Queue.pop queue in
+ let list_q,_ = Asta.transitions_st_lab asta q lab in
+ let flag,queue = result_st_q self_q_i queue 0 list_q in
+ let self_q = if flag = 1 then StateSet.add q self_q_i else self_q_i in
+ comp_acc_self self_q queue in
+
+ let self,queue_init = result_q self_q (Queue.create()) list_tr in
+ let self_q = comp_acc_self self_q queue_init in
+ NodeHash.replace run node (self_q,self_r);
+ (* From now, the correct set of states is mapped to (self) node! *)
+ let rec result self qf qn = function
+ | [] -> []
+ | (q,form) :: tl ->
+ if (StateSet.mem q (fst self)) && (* infers & trans. can start here *)
+ (Formula.infer_form self qf qn form hashInfer)
+ then form :: (result self qf qn tl)
+ else result self qf qn tl in
+ let list_form =
+ try HashRun.find hashMax ((self_q,self_r),qf,qn,list_tr,lab)
+ with _ -> let res = result (self_q,self_r) qf qn list_tr in
+ HashRun.add hashMax ((self_q,self_r),qf,qn,list_tr,lab) res;
+ res in
+ (* compute states occuring in transition candidates *)
+ let rec add_st (ql,qr) = function
+ | [] -> ql,qr
+ | f :: tl -> let sqs,sql,sqr = Formula.st f in
+ let ql' = StateSet.union sql ql
+ and qr' = StateSet.union sqr qr in
+ add_st (ql',qr') tl in
+ let ql,qr = add_st (StateSet.empty, StateSet.empty) list_form in
+ let qfq,qfr = try NodeHash.find run fnode
+ with | _ -> map_leaf asta
+ and qnq,qnr = try NodeHash.find run nnode
+ with | _ -> map_leaf asta in
+ begin
+ if tfnode == Tree.nil || Tree.is_attribute tree tnode
+ then ()
+ else NodeHash.replace run fnode (StateSet.inter qfq ql,qfr);
+ if tnnode == Tree.nil || Tree.is_attribute tree tnode
+ then ()
+ else NodeHash.replace run nnode (StateSet.inter qnq qr,qnr);
+ (* indeed we delete all states from self transitions! *)
+ tp_max asta run tree tfnode hashMax hashInfer;
+ tp_max asta run tree tnnode hashMax hashInfer;
+ end;
+ end
+
let compute tree asta =
- let size_tree = 10000 in (* todo *)
+ let flag = 2 in (* debug *)
+ let size_tree = 10000 in (* todo (Tree.size ?) *)
+ let size_hcons_O = 1000 in (* todo size Hashtbl *)
+ let size_hcons_M = 1000 in (* todo size Hashtbl *)
+ let size_hcons_F = 1000 in (* todo size Hashtbl *)
let map = NodeHash.create size_tree in
-
-
+ let hashOracle = HashOracle.create(size_hcons_O) in
+ let hashEval = Formula.HashEval.create(size_hcons_F) in
+ let hashInfer = Formula.HashInfer.create(size_hcons_F) in
+ bu_oracle asta map tree (Tree.root tree) hashOracle hashEval;
+ HashOracle.clear hashOracle;
+ Formula.HashEval.clear hashEval;
+ if flag > 0 then begin
+ let hashOver = HashRun.create(size_hcons_M) in
+ let hashMax = HashRun.create(size_hcons_M) in
+ bu_over_max asta map tree (Tree.root tree) hashOver hashInfer;
+ if flag = 2
+ then
+ tp_max asta map tree (Tree.root tree) hashMax hashInfer
+ else ();
+ HashRun.clear hashOver;
+ HashRun.clear hashMax;
+ end
+ else ();
map
-
+
+let selected_nodes tree asta =
+ let run = compute tree asta in
+ NodeHash.fold
+ (fun key set acc ->
+ if not(StateSet.is_empty
+ (StateSet.inter (fst set) (Asta.selec_states asta)))
+ then key :: acc
+ else acc)
+ run []
+
let print fmt run =
- let print_d_set fmt (s_1,s_2) =
- Format.fprintf fmt "@[<hov 0>(%a,@ %a)@]"
+ let print_d_set fmt (s_1,s_2) =
+ Format.fprintf fmt "(%a,%a)"
StateSet.print s_1 StateSet.print s_2 in
- let print_map fmt run =
+ let print_map fmt run =
let pp = Format.fprintf fmt in
if NodeHash.length run = 0
then Format.fprintf fmt "ø"
else
- NodeHash.iter (fun cle set -> pp "@ | %i-->%a" cle print_d_set set)
+ NodeHash.iter (fun cle set -> pp "| %i->%a @ " cle print_d_set set)
run in
let print_box fmt run =
let pp = Format.fprintf fmt in
- pp "@[<v 0># Mapping: %a@]"
+ pp "@[<hov 0>@. # Mapping:@. @[<hov 0>%a@]@]"
print_map run
in
- Format.fprintf fmt "@[<v 1>##### RUN #####@, %a@]@." print_box run
+ Format.fprintf fmt "@[<hov 0>##### RUN #####@, %a@]@." print_box run
projects / tatoo.git / blobdiff