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(********************************************************************)
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(*                                                                  *)
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(*  The LustreC compiler toolset   /  The LustreC Development Team  *)
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(*  Copyright 2012 -    --   ONERA - CNRS - INPT                    *)
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(*                                                                  *)
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(*  LustreC is free software, distributed WITHOUT ANY WARRANTY      *)
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(*  under the terms of the GNU Lesser General Public License        *)
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(*  version 2.1.                                                    *)
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(*                                                                  *)
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(********************************************************************)
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(* The compilation presented here is defined in Garoche, Gurfinkel, Kahsai,
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   HCSV'14 *)
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open Format
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open LustreSpec
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open Corelang
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open Machine_code
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let pp_machine_init_name fmt id = fprintf fmt "%s_init" id
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let pp_machine_step_name fmt id = fprintf fmt "%s_step" id
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let pp_machine_stateless_name fmt id = fprintf fmt "%s" id
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let pp_type fmt t =
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  match (Types.repr t).Types.tdesc with
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  | Types.Tbool           -> Format.fprintf fmt "Bool"
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  | Types.Tint            -> Format.fprintf fmt "Int"
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  | Types.Treal           -> Format.fprintf fmt "Real"
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  | Types.Tclock _
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  | Types.Tarray _
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  | Types.Tstatic _
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  | Types.Tconst _
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  | Types.Tarrow _
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  | _                     -> Format.eprintf "internal error: pp_type %a@."
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    Types.print_ty t; assert false
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let pp_decl_var fmt id =
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  Format.fprintf fmt "(declare-var %s %a)"
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    id.var_id
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    pp_type id.var_type
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let pp_var fmt id = Format.pp_print_string fmt id.var_id
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let pp_conj pp fmt l =
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  match l with
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    [] -> assert false
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  | [x] -> pp fmt x
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  | _ -> fprintf fmt "(and @[<v 0>%a@]@ )" (Utils.fprintf_list ~sep:" " pp) l
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let concat prefix x = if prefix = "" then x else prefix ^ "." ^ x
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let rename f = (fun v -> {v with var_id = f v.var_id } )
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let rename_machine p = rename (fun n -> concat p n)
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let rename_machine_list p = List.map (rename_machine p)
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let rename_current =  rename (fun n -> n ^ "_c")
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let rename_current_list = List.map rename_current
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let rename_next = rename (fun n -> n ^ "_x")
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let rename_next_list = List.map rename_next
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let get_machine machines node_name =
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  List.find (fun m  -> m.mname.node_id = node_name) machines
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let full_memory_vars machines machine =
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  let rec aux fst prefix m =
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    (rename_machine_list (if fst then prefix else concat prefix m.mname.node_id) m.mmemory) @
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      List.fold_left (fun accu (id, (n, _)) ->
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	let name = node_name n in
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	if name = "_arrow" then accu else
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	  let machine_n = get_machine machines name in
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	  ( aux false (concat prefix (if fst then id else concat m.mname.node_id id)) machine_n ) @ accu
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      ) [] (m.minstances)
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  in
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  aux true machine.mname.node_id machine
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let stateless_vars machines m =
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  (rename_machine_list m.mname.node_id m.mstep.step_inputs)@
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    (rename_machine_list m.mname.node_id m.mstep.step_outputs)
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let step_vars machines m =
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  (stateless_vars machines m)@
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    (rename_current_list (full_memory_vars machines m)) @
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    (rename_next_list (full_memory_vars machines m))
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let init_vars machines m =
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  (stateless_vars machines m) @ (rename_next_list (full_memory_vars machines m))
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(********************************************************************************************)
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(*                    Instruction Printing functions                                        *)
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(********************************************************************************************)
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let pp_horn_var m fmt id =
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  if Types.is_array_type id.var_type
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  then
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    assert false (* no arrays in Horn output *)
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  else
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    Format.fprintf fmt "%s" id.var_id
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(* Used to print boolean constants *)
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let pp_horn_tag fmt t =
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  pp_print_string fmt (if t = tag_true then "true" else if t = tag_false then "false" else t)
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(* Prints a constant value *)
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let rec pp_horn_const fmt c =
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  match c with
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    | Const_int i    -> pp_print_int fmt i
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    | Const_real r   -> pp_print_string fmt r
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    | Const_float r  -> pp_print_float fmt r
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    | Const_tag t    -> pp_horn_tag fmt t
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    | _              -> assert false
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(* Prints a value expression [v], with internal function calls only.
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   [pp_var] is a printer for variables (typically [pp_c_var_read]),
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   but an offset suffix may be added for array variables
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*)
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let rec pp_horn_val ?(is_lhs=false) self pp_var fmt v =
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  match v with
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    | Cst c         -> pp_horn_const fmt c
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    | Array _
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    | Access _ -> assert false (* no arrays *)
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    | Power (v, n)  -> assert false
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    | LocalVar v    -> pp_var fmt (rename_machine self v)
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    | StateVar v    ->
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      if Types.is_array_type v.var_type
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      then assert false
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      else pp_var fmt (rename_machine self ((if is_lhs then rename_next else rename_current) (* self *) v))
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    | Fun (n, vl)   -> Format.fprintf fmt "%a" (Basic_library.pp_horn n (pp_horn_val self pp_var)) vl
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(* Prints a [value] indexed by the suffix list [loop_vars] *)
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let rec pp_value_suffix self pp_value fmt value =
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 match value with
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 | Fun (n, vl)  ->
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   Basic_library.pp_horn n (pp_value_suffix self pp_value) fmt vl
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 |  _            ->
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   pp_horn_val self pp_value fmt value
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(* type_directed assignment: array vs. statically sized type
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   - [var_type]: type of variable to be assigned
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   - [var_name]: name of variable to be assigned
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   - [value]: assigned value
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   - [pp_var]: printer for variables
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*)
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let pp_assign m self pp_var fmt var_type var_name value =
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  fprintf fmt "(= %a %a)" (pp_horn_val ~is_lhs:true self pp_var) var_name (pp_value_suffix self pp_var) value
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let pp_instance_call
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    machines ?(init=false) m self fmt i (inputs: value_t list) (outputs: var_decl list) =
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  try (* stateful node instance *)
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    begin
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      let (n,_) = List.assoc i m.minstances in
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      match node_name n, inputs, outputs with
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      | "_arrow", [i1; i2], [o] -> begin
160
        if init then
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          pp_assign
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   	    m
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   	    self
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   	    (pp_horn_var m)
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	    fmt
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   	    o.var_type (LocalVar o) i1
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        else
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          pp_assign
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   	    m self (pp_horn_var m) fmt
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   	    o.var_type (LocalVar o) i2
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172
      end
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      | name, _, _ ->
174
	begin
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	  let target_machine = List.find (fun m  -> m.mname.node_id = name) machines in
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	  if init then
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	    Format.fprintf fmt "(%a %a%t%a%t%a)"
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	      pp_machine_init_name (node_name n)
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	      (* inputs *)
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	      (Utils.fprintf_list ~sep:" " (pp_horn_val self (pp_horn_var m)))
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	      inputs
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	      (Utils.pp_final_char_if_non_empty " " inputs)
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	      (* outputs *)
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	      (Utils.fprintf_list ~sep:" " (pp_horn_val self (pp_horn_var m)))
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	      (List.map (fun v -> LocalVar v) outputs)
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	      (Utils.pp_final_char_if_non_empty " " outputs)
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	      (* memories (next) *)
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	      (Utils.fprintf_list ~sep:" " pp_var) (
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  		rename_machine_list
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		  (concat m.mname.node_id i)
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		  (rename_next_list (full_memory_vars machines target_machine)
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		  )
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	       )
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	  else
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	    Format.fprintf fmt "(%a %a%t%a%t%a)"
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	      pp_machine_step_name (node_name n)
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	      (Utils.fprintf_list ~sep:" " (pp_horn_val self (pp_horn_var m))) inputs
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	      (Utils.pp_final_char_if_non_empty " " inputs)
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	      (Utils.fprintf_list ~sep:" " (pp_horn_val self (pp_horn_var m)))
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	      (List.map (fun v -> LocalVar v) outputs)
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	      (Utils.pp_final_char_if_non_empty " " outputs)
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	      (Utils.fprintf_list ~sep:" " pp_var) (
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		(rename_machine_list
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		   (concat m.mname.node_id i)
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		   (rename_current_list (full_memory_vars machines target_machine))
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		) @
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		  (rename_machine_list
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		     (concat m.mname.node_id i)
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		     (rename_next_list (full_memory_vars machines target_machine))
210
		  )
211
	       )
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213
	end
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    end
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    with Not_found -> ( (* stateless node instance *)
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      let (n,_) = List.assoc i m.mcalls in
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      Format.fprintf fmt "(%s %a%t%a)"
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	(node_name n)
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	(Utils.fprintf_list ~sep:" " (pp_horn_val self (pp_horn_var m)))
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	inputs
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	(Utils.pp_final_char_if_non_empty " " inputs)
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	(Utils.fprintf_list ~sep:" " (pp_horn_val self (pp_horn_var m)))
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	(List.map (fun v -> LocalVar v) outputs)
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    )
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let pp_machine_init (m: machine_t) self fmt inst =
227
  let (node, static) = List.assoc inst m.minstances in
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  fprintf fmt "(%a %a%t%s->%s)"
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    pp_machine_init_name (node_name node)
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    (Utils.fprintf_list ~sep:" " Dimension.pp_dimension) static
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    (Utils.pp_final_char_if_non_empty " " static)
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    self inst
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(* TODO *)
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let rec pp_conditional machines ?(init=false)  (m: machine_t) self fmt c tl el =
236
  fprintf fmt "@[<v 2>if (%a) {%t%a@]@,@[<v 2>} else {%t%a@]@,}"
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    (pp_horn_val self (pp_horn_var m)) c
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    (Utils.pp_newline_if_non_empty tl)
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    (Utils.fprintf_list ~sep:"@," (pp_machine_instr machines ~init:init  m self)) tl
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    (Utils.pp_newline_if_non_empty el)
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    (Utils.fprintf_list ~sep:"@," (pp_machine_instr machines ~init:init  m self)) el
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243
and pp_machine_instr machines ?(init=false) (m: machine_t) self fmt instr =
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  match instr with
245
  | MReset i ->
246
    pp_machine_init m self fmt i
247
  | MLocalAssign (i,v) ->
248
    pp_assign
249
      m self (pp_horn_var m) fmt
250
      i.var_type (LocalVar i) v
251
  | MStateAssign (i,v) ->
252
    pp_assign
253
      m self (pp_horn_var m) fmt
254
      i.var_type (StateVar i) v
255
  | MStep ([i0], i, vl) when Basic_library.is_internal_fun i  ->
256
    assert false (* This should not happen anymore *)
257
  | MStep (il, i, vl) ->
258
    pp_instance_call machines ~init:init m self fmt i vl il
259
  | MBranch (g,hl) ->
260
    if hl <> [] && let t = fst (List.hd hl) in t = tag_true || t = tag_false
261
    then (* boolean case, needs special treatment in C because truth value is not unique *)
262
      (* may disappear if we optimize code by replacing last branch test with default *)
263
      let tl = try List.assoc tag_true  hl with Not_found -> [] in
264
      let el = try List.assoc tag_false hl with Not_found -> [] in
265
      pp_conditional machines ~init:init m self fmt g tl el
266
    else assert false (* enum type case *)
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269
(**************************************************************)
270

    
271
let is_stateless m = m.minstances = [] && m.mmemory = []
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273
(* Print the machine m:
274
   two functions: m_init and m_step
275
   - m_init is a predicate over m memories
276
   - m_step is a predicate over old_memories, inputs, new_memories, outputs
277
   We first declare all variables then the two /rules/.
278
*)
279
let print_machine machines fmt m =
280
  let pp_instr init = pp_machine_instr machines ~init:init m in
281
  if m.mname.node_id = arrow_id then
282
    (* We don't print arrow function *)
283
    ()
284
  else
285
    begin
286
      Format.fprintf fmt "; %s@." m.mname.node_id;
287

    
288
   (* Printing variables *)
289
   Utils.fprintf_list ~sep:"@." pp_decl_var fmt
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     ((step_vars machines m)@
291
	 (rename_machine_list m.mname.node_id m.mstep.step_locals));
292
   Format.pp_print_newline fmt ();
293

    
294

    
295

    
296
   if is_stateless m then
297
     begin
298
       (* Declaring single predicate *)
299
       Format.fprintf fmt "(declare-rel %a (%a))@."
300
	 pp_machine_stateless_name m.mname.node_id
301
	 (Utils.fprintf_list ~sep:" " pp_type)
302
	 (List.map (fun v -> v.var_type) (stateless_vars machines m));
303

    
304
       (* Rule for single predicate *)
305
       Format.fprintf fmt "@[<v 2>(rule (=> @ %a@ (%a %a)@]@.))@.@."
306
	 (pp_conj (pp_instr
307
		     true (* In this case, the boolean init can be set to true or false.
308
			     The node is stateless. *)
309
		     m.mname.node_id)
310
	 )
311
	 m.mstep.step_instrs
312
	 pp_machine_stateless_name m.mname.node_id
313
	 (Utils.fprintf_list ~sep:" " pp_var) (stateless_vars machines m);
314
     end
315
   else
316
     begin
317
       (* Declaring predicate *)
318
       Format.fprintf fmt "(declare-rel %a (%a))@."
319
	 pp_machine_init_name m.mname.node_id
320
	 (Utils.fprintf_list ~sep:" " pp_type)
321
	 (List.map (fun v -> v.var_type) (init_vars machines m));
322

    
323
       Format.fprintf fmt "(declare-rel %a (%a))@."
324
	 pp_machine_step_name m.mname.node_id
325
	 (Utils.fprintf_list ~sep:" " pp_type)
326
	 (List.map (fun v -> v.var_type) (step_vars machines m));
327

    
328
       Format.pp_print_newline fmt ();
329

    
330
       (* Rule for init *)
331
       Format.fprintf fmt "@[<v 2>(rule (=> @ %a@ (%a %a)@]@.))@.@."
332
	 (pp_conj (pp_instr true m.mname.node_id)) m.mstep.step_instrs
333
	 pp_machine_init_name m.mname.node_id
334
	 (Utils.fprintf_list ~sep:" " pp_var) (init_vars machines m);
335

    
336
      (* Adding assertions *)
337
       (match m.mstep.step_asserts with
338
       | [] ->
339
          begin
340
            (* Rule for init *)
341
            Format.fprintf fmt "@[<v 2>(rule (=> @ %a@ (%a %a)@]@.))@.@."
342
	                   (pp_conj (pp_instr true m.mname.node_id)) m.mstep.step_instrs
343
	                   pp_machine_init_name m.mname.node_id
344
	                   (Utils.fprintf_list ~sep:" " pp_var) (init_vars machines m);
345
            (* Rule for step*)
346
            Format.fprintf fmt "@[<v 2>(rule (=> @ %a@ (%a %a)@]@.))@.@."
347
                           (pp_conj (pp_instr false m.mname.node_id)) m.mstep.step_instrs
348
                           pp_machine_step_name m.mname.node_id
349
                           (Utils.fprintf_list ~sep:" " pp_var) (step_vars machines m);
350
          end
351
       | assertsl ->
352
          begin
353
	    let pp_val = pp_horn_val ~is_lhs:true m.mname.node_id pp_var in
354
            (* print_string pp_val; *)
355
            let instrs_concat = m.mstep.step_instrs in
356
            Format.fprintf fmt "; with Assertions @.";
357
            (*Rule for init*)
358
            Format.fprintf fmt "@[<v 2>(rule (=> @ (and @ %a@. %a)(%a %a)@]@.))@.@."
359
                           (pp_conj (pp_instr true m.mname.node_id)) instrs_concat
360
                           (pp_conj pp_val) assertsl
361
                           pp_machine_init_name m.mname.node_id
362
                           (Utils.fprintf_list ~sep:" " pp_var) (init_vars machines m);
363
            (*Rule for step*)
364
            Format.fprintf fmt "@[<v 2>(rule (=> @ (and @ %a@. %a)(%a %a)@]@.))@.@."
365
                           (pp_conj (pp_instr false m.mname.node_id)) instrs_concat
366
                           (pp_conj pp_val) assertsl
367
                           pp_machine_step_name m.mname.node_id
368
                           (Utils.fprintf_list ~sep:" " pp_var) (step_vars machines m);
369
          end
370
       );
371
     end
372
    end
373

    
374

    
375

    
376
let collecting_semantics machines fmt node machine =
377
    Format.fprintf fmt "; Collecting semantics for node %s@.@." node;
378
    (* We print the types of the main node "memory tree" TODO: add the output *)
379
    let main_output =
380
     rename_machine_list machine.mname.node_id machine.mstep.step_outputs
381
    in
382
    let main_output_dummy =
383
     rename_machine_list ("dummy" ^ machine.mname.node_id) machine.mstep.step_outputs
384
    in
385
    let main_memory_next =
386
      (rename_next_list (* machine.mname.node_id *) (full_memory_vars machines machine)) @
387
      main_output
388
    in
389
    let main_memory_current =
390
      (rename_current_list (* machine.mname.node_id *) (full_memory_vars machines machine)) @
391
      main_output_dummy
392
    in
393

    
394
    (* Special case when the main node is stateless *)
395
    let init_name, step_name =
396
      if is_stateless machine then
397
	pp_machine_stateless_name, pp_machine_stateless_name
398
      else
399
	pp_machine_init_name, pp_machine_step_name
400
    in
401

    
402
    Format.fprintf fmt "(declare-rel MAIN (%a))@."
403
      (Utils.fprintf_list ~sep:" " pp_type)
404
      (List.map (fun v -> v.var_type) main_memory_next);
405

    
406
    Format.fprintf fmt "; Initial set@.";
407
    Format.fprintf fmt "(declare-rel INIT_STATE ())@.";
408
    Format.fprintf fmt "(rule INIT_STATE)@.";
409
    Format.fprintf fmt "@[<v 2>(rule (=> @ (and @[<v 0>INIT_STATE@ (@[<v 0>%a %a@])@]@ )@ (MAIN %a)@]@.))@.@."
410
      init_name node
411
      (Utils.fprintf_list ~sep:" " pp_var) (init_vars machines machine)
412
      (Utils.fprintf_list ~sep:" " pp_var) main_memory_next ;
413

    
414
    Format.fprintf fmt "; Inductive def@.";
415
    (Utils.fprintf_list ~sep:" " (fun fmt v -> Format.fprintf fmt "%a@." pp_decl_var v)) fmt main_output_dummy;
416
    Format.fprintf fmt
417
      "@[<v 2>(rule (=> @ (and @[<v 0>(MAIN %a)@ (@[<v 0>%a %a@])@]@ )@ (MAIN %a)@]@.))@.@."
418
      (Utils.fprintf_list ~sep:" " pp_var) main_memory_current
419
      step_name node
420
      (Utils.fprintf_list ~sep:" " pp_var) (step_vars machines machine)
421
      (Utils.fprintf_list ~sep:" " pp_var) main_memory_next
422

    
423
let check_prop machines fmt node machine =
424
  let main_output =
425
    rename_machine_list machine.mname.node_id machine.mstep.step_outputs
426
  in
427
  let main_memory_next =
428
    (rename_next_list (full_memory_vars machines machine)) @ main_output
429
  in
430
  Format.fprintf fmt "; Property def@.";
431
  Format.fprintf fmt "(declare-rel ERR ())@.";
432
  Format.fprintf fmt "@[<v 2>(rule (=> @ (and @[<v 0>(not %a)@ (MAIN %a)@])@ ERR))@."
433
    (pp_conj pp_var) main_output
434
    (Utils.fprintf_list ~sep:" " pp_var) main_memory_next
435
    ;
436
   if !Options.horn_query then Format.fprintf fmt "(query ERR)@."
437

    
438

    
439
let cex_computation machines fmt node machine =
440
    Format.fprintf fmt "; CounterExample computation for node %s@.@." node;
441
    (* We print the types of the cex node "memory tree" TODO: add the output *)
442
    let cex_input =
443
     rename_machine_list machine.mname.node_id machine.mstep.step_inputs
444
    in
445
    let cex_input_dummy =
446
     rename_machine_list ("dummy" ^ machine.mname.node_id) machine.mstep.step_inputs
447
    in
448
    let cex_output =
449
     rename_machine_list machine.mname.node_id machine.mstep.step_outputs
450
    in
451
    let cex_output_dummy =
452
     rename_machine_list ("dummy" ^ machine.mname.node_id) machine.mstep.step_outputs
453
    in
454
    let cex_memory_next =
455
      cex_input @ (rename_next_list (full_memory_vars machines machine)) @ cex_output
456
    in
457
    let cex_memory_current =
458
      cex_input_dummy @ (rename_current_list (full_memory_vars machines machine)) @ cex_output_dummy
459
    in
460

    
461
    (* Special case when the cex node is stateless *)
462
    let init_name, step_name =
463
      if is_stateless machine then
464
	pp_machine_stateless_name, pp_machine_stateless_name
465
      else
466
	pp_machine_init_name, pp_machine_step_name
467
    in
468

    
469
    Format.fprintf fmt "(declare-rel CEX (Int %a))@.@."
470
      (Utils.fprintf_list ~sep:" " pp_type)
471
      (List.map (fun v -> v.var_type) cex_memory_next);
472

    
473
    Format.fprintf fmt "; Initial set@.";
474
    Format.fprintf fmt "@[<v 2>(rule (=> @ (and @[<v 0>INIT_STATE@ (@[<v 0>%a %a@])@]@ )@ (CEX 0 %a)@]@.))@.@."
475
      init_name node
476
      (Utils.fprintf_list ~sep:" " pp_var) (init_vars machines machine)
477
      (Utils.fprintf_list ~sep:" " pp_var) cex_memory_next ;
478

    
479
    Format.fprintf fmt "; Inductive def@.";
480
    (* Declare dummy inputs. Outputs should have been declared previously with collecting sem *)
481
    (Utils.fprintf_list ~sep:" " (fun fmt v -> Format.fprintf fmt "%a@." pp_decl_var v)) fmt cex_input_dummy;
482
    Format.fprintf fmt "(declare-var cexcpt Int)@.";
483
    Format.fprintf fmt
484
      "@[<v 2>(rule (=> @ (and @[<v 0>(CEX cexcpt %a)@ (@[<v 0>%a %a@])@]@ )@ (CEX (+ 1 cexcpt) %a)@]@.))@.@."
485
      (Utils.fprintf_list ~sep:" " pp_var) cex_memory_current
486
      step_name node
487
      (Utils.fprintf_list ~sep:" " pp_var) (step_vars machines machine)
488
      (Utils.fprintf_list ~sep:" " pp_var) cex_memory_next
489

    
490
let get_cex machines fmt node machine =
491
    let cex_input =
492
     rename_machine_list machine.mname.node_id machine.mstep.step_inputs
493
    in
494
    let cex_output =
495
     rename_machine_list machine.mname.node_id machine.mstep.step_outputs
496
    in
497
  let cex_memory_next =
498
    cex_input @ (rename_next_list (full_memory_vars machines machine)) @ cex_output
499
  in
500
  Format.fprintf fmt "; Property def@.";
501
  Format.fprintf fmt "(declare-rel CEXTRACE ())@.";
502
  Format.fprintf fmt "@[<v 2>(rule (=> @ (and @[<v 0>(not %a)@ (CEX cexcpt %a)@])@ CEXTRACE))@."
503
    (pp_conj pp_var) cex_output
504
    (Utils.fprintf_list ~sep:" " pp_var) cex_memory_next
505
    ;
506
  Format.fprintf fmt "(query CEXTRACE)@."
507

    
508

    
509
let main_print machines fmt =
510
if !Options.main_node <> "" then
511
  begin
512
    let node = !Options.main_node in
513
    let machine = get_machine machines node in
514

    
515

    
516
    collecting_semantics machines fmt node machine;
517
    check_prop machines fmt node machine;
518
    if !Options.horn_cex then(
519
      cex_computation machines fmt node machine;
520
      get_cex machines fmt node machine)
521
end
522

    
523

    
524
let translate fmt basename prog machines =
525
  List.iter (print_machine machines fmt) (List.rev machines);
526
  main_print machines fmt
527

    
528

    
529
let traces_file fmt basename prog machines =
530

    
531
  Format.fprintf fmt
532
  "<?xml version=\"1.0\"?>\n<Traces xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">\n";
533

    
534
  (* We extract the annotation dealing with traceability *)
535
  let machines_traces = List.map (fun m ->
536
    let traces : (ident * expr) list=
537
      let all_annots = List.flatten (List.map (fun ann -> ann.annots) m.mannot) in
538
      let filtered =
539
	List.filter (fun (kwds, _) -> kwds = ["traceability"]) all_annots
540
      in
541
      let content = List.map snd filtered in
542
      (* Elements are supposed to be a pair (tuple): variable, expression *)
543
      List.map (fun ee ->
544
	match ee.eexpr_quantifiers, ee.eexpr_qfexpr.expr_desc with
545
	| [], Expr_tuple [v;e] -> (
546
	  match v.expr_desc with
547
	  | Expr_ident vid -> vid, e
548
	  | _ -> assert false )
549
	| _ -> assert false)
550
	content
551
    in
552

    
553
    m, traces
554

    
555
  ) machines
556
  in
557

    
558
  (* Compute memories associated to each machine *)
559
  let compute_mems m =
560
    let rec aux fst prefix m =
561
      (List.map (fun mem -> (prefix, mem)) m.mmemory) @
562
	List.fold_left (fun accu (id, (n, _)) ->
563
	  let name = node_name n in
564
	  if name = "_arrow" then accu else
565
	    let machine_n = get_machine machines name in
566
	    ( aux false ((id,machine_n)::prefix) machine_n )
567
	    @ accu
568
	) [] m.minstances
569
    in
570
    aux true [] m
571
  in
572

    
573
  List.iter (fun m ->
574
    (* Format.fprintf fmt "; Node %s@." m.mname.node_id; *)
575
    Format.fprintf fmt "    <Node name=\"%s\">@." m.mname.node_id;
576

    
577
    let memories_old =
578
      List.map (fun (p, v) ->
579
	let machine = match p with | [] -> m | (_,m')::_ -> m' in
580
	let traces = List.assoc machine machines_traces in
581
	if List.mem_assoc v.var_id traces then (
582
	  (* We take the expression associated to variable v in the trace info *)
583
	  (* Format.eprintf "Found variable %a in traces: %a@."  pp_var v Printers.pp_expr (List.assoc v.var_id traces); *)
584
	  p, List.assoc v.var_id traces
585
      )
586
	else (
587
	  (* We keep the variable as is: we create an expression v *)
588
	  (* Format.eprintf "Unable to found variable %a in traces (%a)@."  pp_var v (Utils.fprintf_list ~sep:", " Format.pp_print_string) (List.map fst traces); *)
589
	  p, mkexpr Location.dummy_loc (Expr_ident v.var_id)
590
	)
591

    
592
      ) (compute_mems m)
593
    in
594
    let memories_next = (* We remove the topest pre in each expression *)
595
      List.map
596
      	(fun (prefix, ee) ->
597
      	  match ee.expr_desc with
598
      	  | Expr_pre e -> prefix, e
599
      	  | _ -> Format.eprintf
600
      	    "Mem Failure: (prefix: %a, eexpr: %a)@.@?"
601
      	    (Utils.fprintf_list ~sep:","
602
      	       (fun fmt (id,n) -> fprintf fmt "(%s,%s)" id n.mname.node_id ))
603
      	    (List.rev prefix)
604
      	    Printers.pp_expr ee;
605
      	    assert false)
606
	memories_old
607
    in
608

    
609
    (* let pp_prefix_rev fmt prefix = *)
610
    (*   Utils.fprintf_list ~sep:"." (fun fmt (id,n) -> fprintf fmt "(%s,%s)" id n.mname.node_id) fmt (List.rev prefix) *)
611
    (* in *)
612

    
613
    let pp_prefix_rev fmt prefix =
614
      Utils.fprintf_list ~sep:"." (fun fmt (id,n) -> fprintf fmt "(%s,%s)" id n.mname.node_id) fmt (List.rev prefix)
615
    in
616

    
617
    let input_vars = (rename_machine_list m.mname.node_id m.mstep.step_inputs) in
618
    let output_vars = (rename_machine_list m.mname.node_id m.mstep.step_outputs) in
619
     Format.fprintf fmt "     <input name=\"%a\" type=\"%a\">%a</input> @."
620
                   (Utils.fprintf_list ~sep:" | " pp_var) input_vars
621
                   (Utils.fprintf_list ~sep:" | "  (fun fmt id -> pp_type fmt id.var_type)) input_vars
622
                   (Utils.fprintf_list ~sep:" | " pp_var) (m.mstep.step_inputs);
623

    
624
    Format.fprintf fmt "      <output name=\"%a\" type=\"%a\">%a</output> @."
625
                   (Utils.fprintf_list ~sep:" | " pp_var)  output_vars
626
                   (Utils.fprintf_list ~sep:" | "  (fun fmt id -> pp_type fmt id.var_type)) output_vars
627
                   (Utils.fprintf_list ~sep:" | " pp_var) (m.mstep.step_outputs);
628

    
629
    let init_local_vars = (rename_next_list (full_memory_vars machines m)) in
630
    let step_local_vars = (rename_current_list (full_memory_vars machines m)) in
631

    
632
    Format.fprintf fmt "      <localInit name=\"%a\" type=\"%a\">%t%a</localInit> @."
633
                   (Utils.fprintf_list ~sep:" | " pp_var) init_local_vars
634
                   (Utils.fprintf_list ~sep:" | "  (fun fmt id -> pp_type fmt id.var_type)) init_local_vars
635
                   (fun fmt -> match memories_next with [] -> () | _ -> fprintf fmt "")
636
                   (Utils.fprintf_list ~sep:" | " (fun fmt (prefix, ee) -> fprintf fmt "%a" Printers.pp_expr ee)) memories_next;
637

    
638
    Format.fprintf fmt "      <localStep name=\"%a\" type=\"%a\">%t%a</localStep> @."
639
                   (Utils.fprintf_list ~sep:" | " pp_var) step_local_vars
640
                   (Utils.fprintf_list ~sep:" | "  (fun fmt id -> pp_type fmt id.var_type)) step_local_vars
641
                   (fun fmt -> match memories_old with [] -> () | _ -> fprintf fmt "")
642
                     (Utils.fprintf_list ~sep:" | " (fun fmt (prefix,ee) -> fprintf fmt "(%a)"
643
                                    Printers.pp_expr ee)) (memories_old);
644

    
645
     Format.fprintf fmt "    </Node>@.";
646

    
647
  ) (List.rev machines);
648
  Format.fprintf fmt "</Traces>@.";
649

    
650
          (* (Utils.fprintf_list ~sep:" | " (fun fmt (prefix, ee) -> fprintf fmt "%a%a" pp_prefix_rev prefix Printers.pp_expr ee)) memories_next; *)
651
   (* (Utils.fprintf_list ~sep:" | " (fun fmt (prefix,ee) -> fprintf fmt "%a(%a)" *)
652
   (*                                  pp_prefix_rev prefix Printers.pp_expr ee)) (memories_old); *)
653

    
654
(* Local Variables: *)
655
(* compile-command:"make -C ../.." *)
656
(* End: *)