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(* Open Source License                                                       *)
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module S = Saturation_repr

(* model model_next *)
(* fun size -> (41.51416897 * (log2 (1 + size))) *)
let model_next ~length =
  let open S.Syntax in
  let length = S.safe_z length in
  S.safe_int 42 * log2 (S.safe_int 1 + length)

(* model model_hash_cell *)
(* fun size -> (614.246755643 + (33.7098924139 * size)) *)
let model_hash_cell ~backpointers_count =
  let open S.Syntax in
  let backpointers_count = S.safe_int backpointers_count in
  S.safe_int 614 + (S.safe_int 34 * backpointers_count)

(* model model_hash_cell *)
(* fun size -> (614.246755643 + (33.7098924139 * size)) *)
let model_hash_cell_computed_backpointers_count ~index =
  let open S.Syntax in
  let backpointers_count = log2 (S.safe_z index) in
  S.safe_int 614 + (S.safe_int 34 * backpointers_count)