module I = CicInspect
module PEH = ProofEngineHelpers
+module H = ProceduralHelpers
+
type dependence = I.S.t * bool
type conclusion = (int * int) option
in
Array.iteri map b;
prerr_newline ()
-
-(****************************************************************************)
-
-let identity x = x
-let fst3 (x, _, _) = x
+(* classification ***********************************************************)
let classify_conclusion vs =
let rec get_argsno = function
let rc = classify_conclusion vs in
let map (b, h) (c, v) =
let _, argsno = PEH.split_with_whd (c, v) in
- (I.get_rels_from_premise h v, I.S.empty, argsno > 0) :: b, succ h
+ let iu = H.is_unsafe h (List.hd vs) in
+ (I.get_rels_from_premise h v, I.S.empty, argsno > 0 && iu) :: b, succ h
in
let l, h = List.fold_left map ([], 0) vs in
let b = Array.of_list (List.rev l) in
let mk_closure b h =
- let map j = if j < h then I.S.union (fst3 b.(j)) else identity in
+ let map j = if j < h then I.S.union (H.fst3 b.(j)) else H.identity in
for i = pred h downto 0 do
let direct, unused, fa = b.(i) in
b.(i) <- I.S.fold map direct direct, unused, fa