Inductive val_casted_list: list val -> typelist -> Prop :=
  | vcl_nil:
      val_casted_list nil Tnil
  | vcl_cons: forall v1 vl ty1 tyl,
      val_casted v1 ty1 -> val_casted_list vl tyl ->
      val_casted_list (v1 :: vl) (Tcons  ty1 tyl).Inductive val_casted_list: list val -> typelist -> Prop :=
  | vcl_nil:
      val_casted_list nil Tnil
  | vcl_cons: forall v1 vl ty1 tyl,
      val_casted v1 ty1 -> val_casted_list vl tyl ->
      val_casted_list (v1 :: vl) (Tcons  ty1 tyl).Inductive val_casted_list: list val -> typelist -> Prop :=
  | vcl_nil:
      val_casted_list nil Tnil
  | vcl_cons: forall v1 vl ty1 tyl,
      val_casted v1 ty1 -> val_casted_list vl tyl ->
      val_casted_list (v1 :: vl) (Tcons  ty1 tyl).

Lemma step_add_debug_params: forall f s k e le m params vl le1, list_norepet (var_names params) -> list_forall2 val_casted vl (map snd params) -> bind_parameter_temps params vl le1 = Some le -> star step2 tge (State f (add_debug_params params s) k e le m) E0 (State f s k e le m).