(***********************************************************************)
INCLUDE "utils.ml"
+INCLUDE "debug.ml"
+
open Format
open Misc
+open Bigarray
+
+type stats = { mutable pass : int;
+ tree_size : int;
+ mutable fetch_trans_cache_access : int;
+ mutable fetch_trans_cache_miss : int;
+ mutable eval_trans_cache_access : int;
+ mutable eval_trans_cache_miss : int;
+ mutable nodes_per_run : int list;
+ }
+
+module NodeSummary =
+struct
+ (* Pack into an integer the result of the is_* and has_ predicates
+ for a given node *)
+ type t = int
+ let dummy = -1
+ (*
+ ...44443210
+ ...4444 -> kind
+ 3 -> has_right
+ 2 -> has_left
+ 1 -> is_right
+ 0 -> is_left
+ *)
+ let is_left (s : t) : bool =
+ s land 1 != 0
+
+ let is_right (s : t) : bool =
+ s land 0b10 != 0
+
+ let has_left (s : t) : bool =
+ s land 0b100 != 0
+
+ let has_right (s : t) : bool =
+ s land 0b1000 != 0
+
+ let kind (s : t) : Tree.NodeKind.t =
+ Obj.magic (s lsr 4)
+
+ let make is_left is_right has_left has_right kind =
+ (int_of_bool is_left) lor
+ ((int_of_bool is_right) lsl 1) lor
+ ((int_of_bool has_left) lsl 2) lor
+ ((int_of_bool has_right) lsl 3) lor
+ ((Obj.magic kind) lsl 4)
+end
-module Make (T : Tree.S) =
- struct
-
- module NodeSummary =
- struct
- (* Pack into an integer the result of the is_* and has_ predicates
- for a given node *)
- type t = int
- let dummy = -1
- (*
- 4444444444443210
- 4 -> kind
- 3 -> is_left
- 2 -> is_right
- 1 -> has_left
- 0 -> has_right
- *)
-
- let has_right (s : t) : bool =
- Obj.magic (s land 1)
-
- let has_left (s : t) : bool =
- Obj.magic ((s lsr 1) land 1)
-
- let is_right (s : t) : bool =
- Obj.magic ((s lsr 2) land 1)
-
- let is_left (s : t) : bool =
- Obj.magic ((s lsr 3) land 1)
-
- let kind (s : t) : Tree.NodeKind.t =
- Obj.magic (s lsr 4)
-
- let make is_left is_right has_left has_right kind =
- ((Obj.magic kind) lsl 4) lor
- ((int_of_bool is_left) lsl 3) lor
- ((int_of_bool is_right) lsl 2) lor
- ((int_of_bool has_left) lsl 1) lor
- (int_of_bool has_right)
-
- end
-
- type node_status = {
- sat : StateSet.t;
- unsat : StateSet.t;
- todo : Ata.TransList.t;
- summary : NodeSummary.t;
- }
-(* Describe what is kept at each node for a run *)
-
- module NodeStatus = Hcons.Make(struct
- type t = node_status
- let equal c d =
- c == d ||
- c.sat == d.sat &&
- c.unsat == d.unsat &&
- c.todo == d.todo &&
- c.summary == d.summary
-
- let hash c =
- HASHINT4((c.sat.StateSet.id :> int),
- (c.unsat.StateSet.id :> int),
- (c.todo.Ata.TransList.id :> int),
- c.summary)
- end
- )
-
- let dummy_status =
- NodeStatus.make { sat = StateSet.empty;
- unsat = StateSet.empty;
- todo = Ata.TransList.nil;
- summary = NodeSummary.dummy;
- }
-
-
- type run = {
- tree : T.t ;
- (* The argument of the run *)
- auto : Ata.t;
- (* The automaton to be run *)
- status : NodeStatus.t array;
- (* A mapping from node preorders to NodeStatus *)
- unstable : Bitvector.t;
- (* A bitvector remembering whether a subtree is stable *)
- mutable redo : bool;
- (* A boolean indicating whether the run is incomplete *)
- mutable pass : int;
- (* The number of times this run was updated *)
- mutable cache2 : Ata.TransList.t Cache.N2.t;
- (* A cache from states * label to list of transitions *)
- mutable cache4 : NodeStatus.t Cache.N4.t;
- }
-
- let pass r = r.pass
- let stable r = not r.redo
- let auto r = r.auto
- let tree r = r.tree
-
-
- let dummy_trl =
- Ata.(TransList.cons
- (Transition.make
- (State.dummy,QNameSet.empty, Formula.false_))
- TransList.nil)
-
- let make auto tree =
- let len = T.size tree in
- {
- tree = tree;
- auto = auto;
- status = Array.create len dummy_status;
- unstable = Bitvector.create ~init:true len;
- redo = true;
- pass = 0;
- cache2 = Cache.N2.create dummy_trl;
- cache4 = Cache.N4.create dummy_status;
- }
-
- let get_status a i =
- if i < 0 then dummy_status else Array.get a i
-
- let unsafe_get_status a i =
- if i < 0 then dummy_status else Array.unsafe_get a i
-
-IFDEF HTMLTRACE
+let dummy_set = StateSet.singleton State.dummy_state
+
+
+
+ IFDEF HTMLTRACE
THEN
-DEFINE TRACE(e) = (e)
+type sat_array = StateSet.t array list
+ DEFINE IFHTML(a,b) = (a)
ELSE
-DEFINE TRACE(e) = ()
-END
-
- let html tree node i config msg =
- let config = config.NodeStatus.node in
- Html.trace (T.preorder tree node) i
- "node: %i<br/>%s<br/>sat: %a<br/>unsat: %a<br/>todo: %around: %i<br/>"
- (T.preorder tree node)
- msg
- StateSet.print config.sat
- StateSet.print config.unsat
- (Ata.TransList.print ~sep:"<br/>") config.todo i
-
-
- let debug msg tree node i config =
- let config = config.NodeStatus.node in
- eprintf
- "DEBUG:%s node: %i\nsat: %a\nunsat: %a\ntodo: %around: %i\n"
- msg
- (T.preorder tree node)
- StateSet.print config.sat
- StateSet.print config.unsat
- (Ata.TransList.print ~sep:"\n") config.todo i
-
-
- let get_trans cache2 auto tag states =
- let trs =
- Cache.N2.find cache2
- (tag.QName.id :> int) (states.StateSet.id :> int)
- in
- if trs == dummy_trl then
- let trs = Ata.get_trans auto tag states in
- (Cache.N2.add
- cache2
- (tag.QName.id :> int)
- (states.StateSet.id :> int) trs; trs)
- else trs
-
-
-
- let simplify_atom atom pos q { NodeStatus.node = status; _ } =
- if (pos && StateSet.mem q status.sat)
- || ((not pos) && StateSet.mem q status.unsat) then Ata.Formula.true_
- else if (pos && StateSet.mem q status.unsat)
- || ((not pos) && StateSet.mem q status.sat) then Ata.Formula.false_
- else atom
-
-
- let eval_form phi fcs nss ps ss summary =
- let open Ata in
- let rec loop phi =
- begin match Formula.expr phi with
- Boolean.True | Boolean.False -> phi
- | Boolean.Atom (a, b) ->
- begin
- let open NodeSummary in
- match a.Atom.node with
- | Move (m, q) ->
- let states = match m with
- `First_child -> fcs
- | `Next_sibling -> nss
- | `Parent | `Previous_sibling -> ps
- | `Stay -> ss
- in simplify_atom phi b q states
- | Is_first_child -> Formula.of_bool (b == is_left summary)
- | Is_next_sibling -> Formula.of_bool (b == is_right summary)
- | Is k -> Formula.of_bool (b == (k == kind summary))
- | Has_first_child -> Formula.of_bool (b == has_left summary)
- | Has_next_sibling -> Formula.of_bool (b == has_right summary)
- end
- | Boolean.And(phi1, phi2) -> Formula.and_ (loop phi1) (loop phi2)
- | Boolean.Or (phi1, phi2) -> Formula.or_ (loop phi1) (loop phi2)
- end
- in
- loop phi
-
- type trivalent = False | True | Unknown
-
- let or_ t1 t2 = match t1 with
- False -> t2
- | True -> True
- | Unknown -> if t2 == True then True else Unknown
-
- let and_ t1 t2 = match t1 with
- False -> False
- | True -> t2
- | Unknown -> if t2 == False then False else Unknown
- let of_bool = function false -> False | true -> True
-
- let eval_form phi fcs nss ps ss summary =
- let open Ata in
- let rec loop phi =
- begin match Formula.expr phi with
- | Boolean.False -> False
- | Boolean.True -> True
- | Boolean.Atom (a, b) ->
- begin
- let open NodeSummary in
- match a.Atom.node with
- | Move (m, q) ->
- let sum = match m with
- `First_child -> fcs
- | `Next_sibling -> nss
- | `Parent | `Previous_sibling -> ps
- | `Stay -> ss
- in
- if StateSet.mem q sum.NodeStatus.node.sat then of_bool b
- else if StateSet.mem q sum.NodeStatus.node.unsat then of_bool (not b)
- else Unknown
- | Is_first_child -> of_bool (b == is_left summary)
- | Is_next_sibling -> of_bool (b == is_right summary)
- | Is k -> of_bool (b == (k == kind summary))
- | Has_first_child -> of_bool (b == has_left summary)
- | Has_next_sibling -> of_bool (b == has_right summary)
- end
- | Boolean.And(phi1, phi2) -> and_ (loop phi1) (loop phi2)
- | Boolean.Or (phi1, phi2) -> or_ (loop phi1) (loop phi2)
- end
- in
- loop phi
-
-
- let eval_trans_aux cache4 fcs nss ps ss old_config =
- let { sat = old_sat;
- unsat = old_unsat;
- todo = old_todo;
- summary = old_summary } = old_config.NodeStatus.node
- in
- let sat, unsat, removed, kept, todo =
- Ata.TransList.fold
- (fun trs acc ->
- let q, lab, phi = Ata.Transition.node trs in
- let a_sat, a_unsat, a_rem, a_kept, a_todo = acc in
- if StateSet.mem q a_sat || StateSet.mem q a_unsat then acc else
- let phi_val =
- eval_form phi fcs nss ps old_config old_summary
- in
- match phi_val with
- | False -> a_sat, StateSet.add q a_unsat, StateSet.add q a_rem, a_kept, a_todo
- | True -> StateSet.add q a_sat, a_unsat, StateSet.add q a_rem, a_kept, a_todo
- | Unknown ->
- (a_sat, a_unsat, a_rem, StateSet.add q a_kept, (Ata.TransList.cons trs a_todo))
- ) old_todo (old_sat, old_unsat, StateSet.empty, StateSet.empty, Ata.TransList.nil)
- in
- (* States that have been removed from the todo list and not kept are now
- unsatisfiable *)
- let unsat = StateSet.union unsat (StateSet.diff removed kept) in
- (* States that were found once to be satisfiable remain so *)
- let unsat = StateSet.diff unsat sat in
- let new_config = NodeStatus.make { old_config.NodeStatus.node with sat; unsat; todo; } in
- new_config
-
-
- let eval_trans cache4 fcs nss ps ss =
- let fcsid = (fcs.NodeStatus.id :> int) in
- let nssid = (nss.NodeStatus.id :> int) in
- let psid = (ps.NodeStatus.id :> int) in
- let rec loop old_config =
- let oid = (old_config.NodeStatus.id :> int) in
- let res =
- let res = Cache.N4.find cache4 oid fcsid nssid psid in
- if res != dummy_status then res
- else
- let new_config =
- eval_trans_aux cache4 fcs nss ps ss old_config
- in
- Cache.N4.add cache4 oid fcsid nssid psid new_config;
- new_config
- in
- if res == old_config then res else loop res
- in
- loop ss
+type sat_array = StateSet.t array
+ DEFINE IFHTML(a,b) = (b)
+ END
+let unsafe_get a i =
+ if i < 0 then StateSet.empty else
+ Array.unsafe_get (IFHTML(List.hd a, a)) i
+let unsafe_set a i v old_v =
+ if v != old_v then
+ Array.unsafe_set (IFHTML(List.hd a, a)) i v
+
+type 'a run = {
+ tree : 'a ;
+ (* The argument of the run *)
+ auto : Ata.t;
+ (* The automaton to be run *)
+ mutable sat: sat_array;
+ (* A mapping from node preorders to states satisfied at that node *)
+ mutable pass : int;
+ (* Number of run we have performed *)
+ mutable fetch_trans_cache : Ata.Formula.t Cache.N2.t;
+ (* A cache from states * label to list of transitions *)
+ mutable td_cache : StateSet.t Cache.N6.t;
+ mutable bu_cache : StateSet.t Cache.N6.t;
+ (* Two 6-way caches used during the top-down and bottom-up phase
+ label * self-set * fc-set * ns-set * parent-set * node-shape -> self-set
+ *)
+ (*node_summaries: (int, int16_unsigned_elt, c_layout) Array1.t; *)
+ node_summaries: Bytes.t;
+ stats : stats;
+}
+
+let dummy_form = Ata.Formula.stay State.dummy_state
+
+let get_form run tag (q : State.t) =
+ let auto = run.auto in
+ let fetch_trans_cache = run.fetch_trans_cache in
+ let stats = run.stats in
+ let phi =
+ stats.fetch_trans_cache_access <- stats.fetch_trans_cache_access + 1;
+ Cache.N2.find fetch_trans_cache (tag.QName.id :> int) (q :> int)
+ in
+ if phi == dummy_form then
+ let phi = Ata.get_form auto tag q in
+ let () =
+ stats.fetch_trans_cache_miss <- stats.fetch_trans_cache_miss + 1;
+ Cache.N2.add
+ fetch_trans_cache
+ (tag.QName.id :> int)
+ (q :> int) phi
+ in phi
+ else
+ phi
+
+
+
+let eval_form phi fcs nss ps ss summary =
+ let open Ata in
+ let rec loop phi =
+ begin match Formula.expr phi with
+ | Boolean.False -> false
+ | Boolean.True -> true
+ | Boolean.Atom (a, b) ->
+ begin
+ let open NodeSummary in
+ match a.Atom.node with
+ | Move (m, q) ->
+ b && StateSet.mem q (
+ match m with
+ `First_child -> fcs
+ | `Next_sibling -> nss
+ | `Parent | `Previous_sibling -> ps
+ | `Stay -> ss
+ )
+ | Is_first_child -> b == is_left summary
+ | Is_next_sibling -> b == is_right summary
+ | Is k -> b == (k == kind summary)
+ | Has_first_child -> b == has_left summary
+ | Has_next_sibling -> b == has_right summary
+ end
+ | Boolean.And(phi1, phi2) -> loop phi1 && loop phi2
+ | Boolean.Or (phi1, phi2) -> loop phi1 || loop phi2
+ end
+ in
+ loop phi
- let top_down run =
+let eval_trans_aux run tag summary fcs nss ps sat todo =
+ StateSet.fold (fun q (a_sat) ->
+ let phi =
+ get_form run tag q
+ in
+ if eval_form phi fcs nss ps a_sat summary then
+ StateSet.add q a_sat
+ else a_sat
+ ) todo sat
+
+
+let rec eval_trans_fix run tag summary fcs nss ps sat todo =
+ let new_sat =
+ eval_trans_aux run tag summary fcs nss ps sat todo
+ in
+ if new_sat == sat then sat else
+ eval_trans_fix run tag summary fcs nss ps new_sat todo
+
+
+let eval_trans run trans_cache tag summary fcs nss ps ss todo =
+ let stats = run.stats in
+ let fcsid = (fcs.StateSet.id :> int) in
+ let nssid = (nss.StateSet.id :> int) in
+ let psid = (ps.StateSet.id :> int) in
+ let ssid = (ss.StateSet.id :> int) in
+ let tagid = (tag.QName.id :> int) in
+
+ let res = Cache.N6.find trans_cache tagid summary ssid fcsid nssid psid in
+ stats.eval_trans_cache_access <- 1 + stats.eval_trans_cache_access;
+ if res != dummy_set then
+ res
+ else let new_sat = if todo == StateSet.empty then ss else
+ eval_trans_fix run tag summary fcs nss ps ss todo
+ in
+ stats.eval_trans_cache_miss <- 1 + stats.eval_trans_cache_miss;
+ Cache.N6.add trans_cache tagid summary ssid fcsid nssid psid new_sat;
+ new_sat
+
+
+module Make (T : Tree.S) =
+struct
+ module Tree : Tree.S with type node = T.node = T
+ module ResultSet : Deque.S with type elem = Tree.node =
+ Deque.Make (struct type t = Tree.node end)
+
+
+ let make auto tree =
+ let len = Tree.size tree in
+ (* let ba = Array1.create int16_unsigned c_layout len in
+ Array1.fill ba 0; *)
+ let ba = Bytes.make len '\000' in
+ {
+ tree = tree;
+ auto = auto;
+ sat = (let a = Array.make len StateSet.empty in
+ IFHTML([a], a));
+ pass = 0;
+ fetch_trans_cache = Cache.N2.create dummy_form;
+ td_cache = Cache.N6.create dummy_set;
+ bu_cache = Cache.N6.create dummy_set;
+ node_summaries = ba;
+ stats = {
+ pass = 0;
+ tree_size = len;
+ fetch_trans_cache_access = 0;
+ fetch_trans_cache_miss = 0;
+ eval_trans_cache_access = 0;
+ eval_trans_cache_miss = 0;
+ nodes_per_run = [];
+ }
+ }
+
+
+ let top_down2 run update_res =
+ let num_visited = ref 0 in
+ let i = run.pass in
let tree = run.tree in
let auto = run.auto in
- let status = run.status in
- let cache2 = run.cache2 in
- let cache4 = run.cache4 in
- let unstable = run.unstable in
- let rec loop node =
- let node_id = T.preorder tree node in
- if node == T.nil || not (Bitvector.get unstable node_id) then false else begin
- let parent = T.parent tree node in
- let fc = T.first_child tree node in
- let fc_id = T.preorder tree fc in
- let ns = T.next_sibling tree node in
- let ns_id = T.preorder tree ns in
- let tag = T.tag tree node in
+ let states_by_rank = Ata.get_states_by_rank auto in
+ let td_todo = states_by_rank.(i) in
+ let bu_todo =
+ if i == Array.length states_by_rank - 1 then StateSet.empty
+ else
+ states_by_rank.(i+1)
+ in
+ let run_sat = run.sat in
+ let last_run = i >= Array.length states_by_rank - 2 in
+ let rec common node parent parent_sat kont =
+ if node == Tree.nil then StateSet.empty
+ else begin
+ incr num_visited;
+ let tag = Tree.tag tree node in
+ let node_id = Tree.preorder tree node in
+ let fc = Tree.first_child tree node in
+ let ns = Tree.next_sibling tree node in
(* We enter the node from its parent *)
-
- let status0 =
- let c = unsafe_get_status status node_id in
- if c == dummy_status then
- (* first time we visit the node *)
- let ltrs = get_trans cache2 auto tag (Ata.get_states auto) in
- NodeStatus.make
- { sat = StateSet.empty;
- unsat = Ata.get_starting_states auto;
- todo = ltrs;
- summary = NodeSummary.make
- (node == T.first_child tree parent) (* is_left *)
- (node == T.next_sibling tree parent) (* is_right *)
- (fc != T.nil) (* has_left *)
- (ns != T.nil) (* has_right *)
- (T.kind tree node) (* kind *)
- }
- else c
+ let summary =
+ let s = Char.code (Bytes.unsafe_get run.node_summaries node_id) in
+ if s != 0 then s else
+ let s =
+ NodeSummary.make
+ (node == (Tree.first_child tree parent)) (*is_left *)
+ (node == (Tree.next_sibling tree parent)) (*is_right *)
+ (fc != Tree.nil) (* has_left *)
+ (ns != Tree.nil) (* has_right *)
+ (Tree.kind tree node) (* kind *)
+ in
+ Bytes.unsafe_set run.node_summaries node_id (Char.chr s); s
in
-
- TRACE(html tree node _i config0 "Entering node");
-
+ let status0 = unsafe_get run_sat node_id in
(* get the node_statuses for the first child, next sibling and parent *)
- let ps = unsafe_get_status status (T.preorder tree parent) in
- let fcs = unsafe_get_status status fc_id in
- let nss = unsafe_get_status status ns_id in
(* evaluate the transitions with all this statuses *)
- let status1 = eval_trans cache4 fcs nss ps status0 in
-
- TRACE(html tree node _i config1 "Updating transitions");
-
- (* update the cache if the status of the node changed *)
-
- if status1 != status0 then status.(node_id) <- status1;
- (* recursively traverse the first child *)
- let unstable_left = loop fc in
- (* here we re-enter the node from its first child,
- get the new status of the first child *)
- let fcs1 = unsafe_get_status status fc_id in
- (* update the status *)
- let status2 = eval_trans cache4 fcs1 nss ps status1 in
-
- TRACE(html tree node _i config2 "Updating transitions (after first-child)");
-
- if status2 != status1 then status.(node_id) <- status2;
- let unstable_right = loop ns in
- let nss1 = unsafe_get_status status ns_id in
- let status3 = eval_trans cache4 fcs1 nss1 ps status2 in
-
- TRACE(html tree node _i config3 "Updating transitions (after next-sibling)");
-
- if status3 != status2 then status.(node_id) <- status3;
-
- let unstable_self =
- (* if either our left or right child is unstable or if we still have transitions
- pending, the current node is unstable *)
- unstable_left
- || unstable_right
- || Ata.TransList.nil != status3.NodeStatus.node.todo
+ let status1 =
+ eval_trans run
+ run.td_cache tag
+ summary
+ (unsafe_get run_sat (Tree.preorder tree fc))
+ (unsafe_get run_sat (Tree.preorder tree ns))
+ parent_sat
+ status0 td_todo
in
- Bitvector.unsafe_set unstable node_id unstable_self;
- TRACE((if not unstable_self then
- Html.finalize_node
- node_id
- _i
- Ata.(StateSet.intersect config3.Config.node.sat auto.selection_states)));
- unstable_self
+ kont summary tag parent_sat status0 status1 fc ns node node_id
end
- in
- run.redo <- loop (T.root tree);
- run.pass <- run.pass + 1
-
-(*
- let stats run =
- let count = ref 0 in
- let len = Bitvector.length run.unstable in
- for i = 0 to len - 1 do
- if not (Bitvector.unsafe_get run.unstable i) then
- incr count
- done;
- Logger.msg `STATS
- "%i nodes over %i were skipped in iteration %i (%.2f %%), redo is: %b"
- !count len run.pass (100. *. (float !count /. float len))
- run.redo
-
-
- let eval auto tree node =
- let len = T.size tree in
- let run = { config = Array.create len Ata.dummy_config;
- unstable = Bitvector.create ~init:true len;
- redo = true;
- pass = 0
- }
- in
- while run.redo do
- run.redo <- false;
- Ata.reset auto; (* prevents the .cache2 and .cache4 memoization tables from growing too much *)
- run.redo <- top_down_run auto tree node run;
- stats run;
- run.pass <- run.pass + 1;
- done;
- at_exit (fun () -> Logger.msg `STATS "%i iterations" run.pass);
- at_exit (fun () -> stats run);
- let r = get_results auto tree node run.config in
-
- TRACE(Html.gen_trace (module T : Tree.S with type t = T.t) (tree));
- r
-*)
+ and kont_pure_td summary tag parent_sat status0 status1 fc ns node node_id =
+ unsafe_set run_sat node_id status1 status0; (* write the td_states *)
+ update_res false status1 node;
+ if fc != Tree.nil then ignore (loop_td fc node status1);
+ if ns == Tree.nil then StateSet.empty else loop_td ns node status1 (* tail call *)
+ and kont_td_and_bu summary tag parent_sat status0 status1 fc ns node node_id =
+ let fcs1 = if fc == Tree.nil then StateSet.empty else loop_td_and_bu fc node status1 in
+ let nss1 = if ns == Tree.nil then StateSet.empty else loop_td_and_bu ns node status1 in
+ let status2 =
+ eval_trans run run.bu_cache tag
+ summary fcs1
+ nss1
+ parent_sat
+ status1 bu_todo
+ in
+ unsafe_set run_sat node_id status2 status0;
+ status2
+ and kont_td_and_bu_last summary tag parent_sat status0 status1 fc ns node node_id =
+ let nss1 = if ns == Tree.nil then StateSet.empty else loop_td_and_bu_last ns node status1 in
+ let fcs1 = if fc == Tree.nil then StateSet.empty else loop_td_and_bu_last fc node status1 in
+ let status2 =
+ eval_trans run run.bu_cache tag
+ summary fcs1
+ nss1
+ parent_sat
+ status1 bu_todo
+ in
+ unsafe_set run_sat node_id status2 status0;
+ if status2 != StateSet.empty then update_res true status2 node;
+ status2
+ and loop_td node parent parent_sat =
+ common node parent parent_sat kont_pure_td
+ and loop_td_and_bu node parent parent_sat =
+ common node parent parent_sat kont_td_and_bu
+ and loop_td_and_bu_last node parent parent_sat =
+ common node parent parent_sat kont_td_and_bu_last
+ in
- let get_results run =
- let cache = run.status in
- let auto = run.auto in
- let tree = run.tree in
- let rec loop node acc =
- if node == T.nil then acc
+ let _ =
+ if bu_todo == StateSet.empty then
+ loop_td (Tree.root tree) Tree.nil dummy_set
+ else if last_run then
+ loop_td_and_bu_last (Tree.root tree) Tree.nil dummy_set
else
- let acc0 = loop (T.next_sibling tree node) acc in
- let acc1 = loop (T.first_child tree node) acc0 in
-
- if Ata.(
- StateSet.intersect
- cache.(T.preorder tree node).NodeStatus.node.sat
- (get_selecting_states auto)) then node::acc1
- else acc1
+ loop_td_and_bu (Tree.root tree) Tree.nil dummy_set
in
- loop (T.root tree) []
-
-
- let get_full_results run =
- let cache = run.status in
- let auto = run.auto in
- let tree = run.tree in
- let res_mapper = Hashtbl.create MED_H_SIZE in
+ run.pass <- run.pass + 2;
+ run.stats.pass <- run.stats.pass + 1;
+ run.stats.nodes_per_run <- !num_visited :: run.stats.nodes_per_run
+
+
+ type res_op = Dummy | Prepend | Append | Nothing
+
+ let mk_update_result auto =
+ let sel_states = Ata.get_selecting_states auto in
+ let res = ResultSet.create () in
+ let cache = Cache.N2.create Dummy in
+ (fun prepend sat node ->
+ let sat_id = (sat.StateSet.id :> int) in
+ let prep_id : int = Obj.magic prepend in
+ let op = Cache.N2.find cache prep_id sat_id in
+ let op =
+ if op == Dummy then
+ let op =
+ if StateSet.intersect sel_states sat then
+ if prepend then
+ Prepend
+ else Append
+ else Nothing
+ in
+ let () = Cache.N2.add cache prep_id sat_id op in
+ op
+ else op
+ in
+ match op with
+ Dummy | Nothing -> ()
+ | Prepend -> ResultSet.push_front node res
+ | Append -> ResultSet.push_back node res
+ (*
+ if StateSet.intersect sel_states sat then begin
+ if prepend then L.push_front node res else
+ L.push_back node res
+ end*)),
+ (fun () -> res)
+
+
+ let mk_update_full_result auto =
+ let dummy = ResultSet.create () in
+ let res_mapper = Cache.N1.create dummy in
let () =
StateSet.iter
- (fun q -> Hashtbl.add res_mapper q [])
+ (fun q -> Cache.N1.add res_mapper (q :> int) (ResultSet.create()))
(Ata.get_selecting_states auto)
in
- let rec loop node =
- if node != T.nil then
- let () = loop (T.next_sibling tree node) in
- let () = loop (T.first_child tree node) in
- StateSet.iter
- (fun q ->
- try
- let acc = Hashtbl.find res_mapper q in
- Hashtbl.replace res_mapper q (node::acc)
- with
- Not_found -> ())
- cache.(T.preorder tree node).NodeStatus.node.sat
- in
- loop (T.root tree);
- StateSet.fold
- (fun q acc -> (q, Hashtbl.find res_mapper q)::acc)
- (Ata.get_selecting_states auto) []
+ (fun prepend sat node ->
+ StateSet.iter
+ (fun q ->
+ let res = Cache.N1.find res_mapper (q :> int) in
+ if res != dummy then begin
+ if prepend then ResultSet.push_front node res
+ else ResultSet.push_back node res
+ end
+ ) sat),
+ (fun () ->
+ StateSet.fold_right
+ (fun q acc -> (q, Cache.N1.find res_mapper (q :> int))::acc)
+ (Ata.get_selecting_states auto) [])
let prepare_run run list =
let tree = run.tree in
let auto = run.auto in
- let status = run.status in
- let cache2 = run.cache2 in
- List.iter (fun node ->
- let parent = T.parent tree node in
- let fc = T.first_child tree node in
- let ns = T.next_sibling tree node in
- let tag = T.tag tree node in
-
- let status0 =
- NodeStatus.make
- { sat = Ata.get_starting_states auto;
- unsat = StateSet.empty;
- todo = get_trans cache2 auto tag (Ata.get_states auto);
- summary = NodeSummary.make
- (node == T.first_child tree parent) (* is_left *)
- (node == T.next_sibling tree parent) (* is_right *)
- (fc != T.nil) (* has_left *)
- (ns != T.nil) (* has_right *)
- (T.kind tree node) (* kind *)
- }
- in
- let node_id = T.preorder tree node in
- status.(node_id) <- status0) list
+ let sat = IFHTML((List.hd run.sat), run.sat) in
+ let sat0 = Ata.get_starting_states auto in
+ ResultSet.iter (fun node ->
+ let node_id = Tree.preorder tree node in
+ sat.(node_id) <- sat0) list
- let eval full auto tree nodes =
+ let compute_run auto tree nodes update_res =
let run = make auto tree in
prepare_run run nodes;
- while run.redo do
- top_down run
+ let rank = Ata.get_max_rank auto in
+ while run.pass <= rank do
+ top_down2 run update_res;
+ IFHTML((run.sat <- (Array.copy (List.hd run.sat)) :: run.sat), ());
+ run.td_cache <- Cache.N6.create dummy_set;
+ run.bu_cache <- Cache.N6.create dummy_set;
done;
- if full then `Full (get_full_results run)
- else `Normal (get_results run)
+ IFHTML((run.sat <- List.tl run.sat), ());
+ IFHTML(Html_trace.gen_trace auto run.sat (module T : Tree.S with type t = Tree.t) tree ,());
+ run
+
+ let last_stats = ref None
let full_eval auto tree nodes =
- match eval true auto tree nodes with
- `Full l -> l
- | _ -> assert false
+ let update_full,get_full = mk_update_full_result auto in
+ let run = compute_run auto tree nodes update_full in
+ last_stats := Some run.stats;
+ get_full ()
let eval auto tree nodes =
- match eval false auto tree nodes with
- `Normal l -> l
- | _ -> assert false
+ let update_res,get_res = mk_update_result auto in
+ let run = compute_run auto tree nodes update_res in
+ last_stats := Some run.stats;
+ get_res ()
+
+ let stats () = match !last_stats with
+ Some s -> s.nodes_per_run <- List.rev s.nodes_per_run;s
+ | None -> failwith "Missing stats"
end
projects / tatoo.git / blobdiff