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@ -38,10 +38,22 @@ open Idents
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open Types
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open Clocks
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open Sigali
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open Location
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type mtype = Tint | Tbool | Tother
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let actual_ty = function
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exception Untranslatable
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let untranslatable_warn e =
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if e.Minils.e_loc <> no_location then
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Format.eprintf "Warning: abstracted expression:@.%a"
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Location.print_location e.Minils.e_loc
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else
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Format.eprintf "Warning: abstracted expression: @[<hov 2>%a@]@."
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Mls_printer.print_exp e
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let actual_ty ty =
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match (Modules.unalias_type ty) with
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| Tid({ qual = Pervasives; name = "bool"}) -> Tbool
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| Tid({ qual = Pervasives; name = "int"}) -> Tint
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| _ -> Tother
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@ -54,12 +66,12 @@ let var_list prefix n =
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varl acc (n-1) in
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varl [] n
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let dummy_prefix = "d"
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let current_inputs : IdentSet.t ref = ref IdentSet.empty
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let translate_static_exp se =
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match se.se_desc with
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| Sint(v) -> Cint(v)
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| Sfloat(_) -> failwith("Sigali: floats not implemented")
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| Sfloat(_) -> raise Untranslatable
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| Sbool(true)
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| Sconstructor { qual = Pervasives; name = "true" }
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-> Ctrue
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@ -68,10 +80,7 @@ let translate_static_exp se =
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-> Cfalse
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| Sop({ qual = Pervasives; name = "~-" },[{se_desc = Sint(v)}]) ->
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Cint(-v)
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| _ ->
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Format.printf "Constant %a@\n"
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Global_printer.print_static_exp se;
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failwith("Sigali: untranslatable constant")
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| _ -> raise Untranslatable
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let rec translate_pat = function
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@ -94,119 +103,130 @@ let rec translate_ck pref e = function
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let rec translate_ext prefix ({ Minils.w_desc = desc; Minils.w_ty = ty }) =
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match desc with
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| Minils.Wconst(v) ->
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begin match (actual_ty ty) with
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| Tbool -> Sconst(translate_static_exp v)
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| Tint -> a_const (Sconst(translate_static_exp v))
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| Tother -> failwith("Sigali: untranslatable type")
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end
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| Minils.Wvar(n) -> Svar(prefix ^ (name n))
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(* TODO remove if this works without *)
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(* | Minils.Wwhen(e, c, var) when ((actual_ty e.Minils.w_ty) = Tbool) -> *)
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(* let e = translate_ext prefix e in *)
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(* Swhen(e, *)
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(* match (shortname c) with *)
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(* "true" -> Svar(prefix ^ (name var)) *)
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(* | "false" -> Snot(Svar(prefix ^ (name var))) *)
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(* | _ -> assert false) *)
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| Minils.Wwhen(e, _c, _var) ->
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translate_ext prefix e
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| Minils.Wfield(_) ->
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failwith("Sigali: structures not implemented")
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| Minils.Wreinit _ -> failwith("Sigali: reinit not implemented")
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| Minils.Wconst(v) ->
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begin match (actual_ty ty) with
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| Tbool -> Sconst(translate_static_exp v)
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| Tint -> a_const (Sconst(translate_static_exp v))
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| Tother -> raise Untranslatable
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end
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| Minils.Wvar(n) ->
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(* get variable iff it is Boolean or local *)
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begin match (actual_ty ty) with
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| Tbool -> Svar(prefix ^ (name n))
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| Tint when not (IdentSet.mem n !current_inputs) -> Svar(prefix ^ (name n))
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| _ -> raise Untranslatable
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end
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(* TODO remove if this works without *)
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(* | Minils.Wwhen(e, c, var) when ((actual_ty e.Minils.w_ty) = Tbool) -> *)
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(* let e = translate_ext prefix e in *)
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(* Swhen(e, *)
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(* match (shortname c) with *)
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(* "true" -> Svar(prefix ^ (name var)) *)
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(* | "false" -> Snot(Svar(prefix ^ (name var))) *)
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(* | _ -> assert false) *)
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| Minils.Wwhen(e, _c, _var) ->
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translate_ext prefix e
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| Minils.Wfield(_) ->
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raise Untranslatable
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| Minils.Wreinit _ -> raise Untranslatable
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(* [translate e = c] *)
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let rec translate prefix ({ Minils.e_desc = desc } as e) =
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let rec translate prefix ({ Minils.e_desc = desc; Minils.e_ty = ty } as e) =
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let ty = actual_ty ty in
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match desc with
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| Minils.Eextvalue(ext) -> translate_ext prefix ext
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| Minils.Eapp (* pervasives binary or unary stateless operations *)
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({ Minils.a_op = Minils.Efun({qual=Pervasives;name=n})},
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e_list, _) ->
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| Minils.Eextvalue(ext) -> translate_ext prefix ext
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| Minils.Eapp (* pervasives binary or unary stateless operations *)
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({ Minils.a_op = Minils.Efun({qual=Pervasives;name=n})},
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e_list, _) ->
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begin
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match n, e_list with
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| "not", [e] -> Snot(translate_ext prefix e)
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| "or", [e1;e2] -> Sor((translate_ext prefix e1),
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(translate_ext prefix e2))
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| "&", [e1;e2] -> Sand((translate_ext prefix e1),
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(translate_ext prefix e2))
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| ("<="|"<"|">="|">"), [e1;e2] ->
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let op,modv =
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begin match n with
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| "<=" -> a_inf,0
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| "<" -> a_inf,-1
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| ">=" -> a_sup,0
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| _ -> a_sup,1
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end in
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let e1 = translate_ext prefix e1 in
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let sig_e =
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begin match e2.Minils.w_desc with
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| Minils.Wconst({se_desc = Sint(v)}) ->
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op e1 (Sconst(Cint(v+modv)))
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| _ ->
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let e2 = translate_ext prefix e2 in
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op (Sminus(e1,e2)) (Sconst(Cint(modv)))
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end in
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(* a_inf and a_sup : +1 to translate ideals to boolean
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polynomials *)
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Splus(sig_e,Sconst(Ctrue))
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| "+", [e1;e2] -> Splus((translate_ext prefix e1),
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(translate_ext prefix e2))
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| "-", [e1;e2] -> Splus((translate_ext prefix e1),
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(Sprod((translate_ext prefix e2),(Sconst(Cint(-1))))))
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| "*", [e1;e2] -> Sprod((translate_ext prefix e1),
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(translate_ext prefix e2))
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| "=", [e1;e2] when (ty = Tbool) ->
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let e1 = translate_ext prefix e1 in
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let e2 = translate_ext prefix e2 in
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(* e1 = e2 iff (e1 and e2) or (not e1 and not e2) *)
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(e1 &~ e2) |~ ((~~ e1) &~ (~~ e2))
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| "<>", [e1;e2] when ty = Tbool ->
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let e1 = translate_ext prefix e1 in
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let e2 = translate_ext prefix e2 in
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(* e1 <> e2 iff (e1 and not e2) or (not e1 and e2) *)
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(e1 &~ (~~ e2)) |~ ((~~ e1) &~ e2)
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| _ -> raise Untranslatable
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end
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(* | Minils.Ewhen(e, c, var) when ((actual_ty e.Minils.e_ty) = Tbool) -> *)
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(* let e = translate prefix e in *)
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(* Swhen(e, *)
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(* match (shortname c) with *)
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(* "true" -> Svar(prefix ^ (name var)) *)
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(* | "false" -> Snot(Svar(prefix ^ (name var))) *)
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(* | _ -> assert false) *)
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| Minils.Ewhen(e, _c, _var) ->
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translate prefix e
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| Minils.Emerge(ck,[(c1,e1);(_c2,e2)]) ->
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let e1 = translate_ext prefix e1 in
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let e2 = translate_ext prefix e2 in
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let e1,e2 =
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begin
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match n, e_list with
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| "not", [e] -> Snot(translate_ext prefix e)
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| "or", [e1;e2] -> Sor((translate_ext prefix e1),
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(translate_ext prefix e2))
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| "&", [e1;e2] -> Sand((translate_ext prefix e1),
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(translate_ext prefix e2))
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| ("<="|"<"|">="|">"), [e1;e2] ->
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let op,modv =
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begin match n with
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| "<=" -> a_inf,0
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| "<" -> a_inf,-1
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| ">=" -> a_sup,0
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| _ -> a_sup,1
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end in
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let e1 = translate_ext prefix e1 in
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let sig_e =
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begin match e2.Minils.w_desc with
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| Minils.Wconst({se_desc = Sint(v)}) ->
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op e1 (Sconst(Cint(v+modv)))
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| _ ->
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let e2 = translate_ext prefix e2 in
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op (Sminus(e1,e2)) (Sconst(Cint(modv)))
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end in
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(* a_inf and a_sup : +1 to translate ideals to boolean
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polynomials *)
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Splus(sig_e,Sconst(Ctrue))
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| "+", [e1;e2] -> Splus((translate_ext prefix e1),
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(translate_ext prefix e2))
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| "-", [e1;e2] -> Sminus((translate_ext prefix e1),
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(translate_ext prefix e2))
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| "*", [e1;e2] -> Sprod((translate_ext prefix e1),
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(translate_ext prefix e2))
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| ("="
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| "<>"),_ -> failwith("Sigali: '=' or '<>' not yet implemented")
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match (shortname c1) with
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"true" -> e1,e2
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| "false" -> e2,e1
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| _ -> assert false
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end
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(* | Minils.Ewhen(e, c, var) when ((actual_ty e.Minils.e_ty) = Tbool) -> *)
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(* let e = translate prefix e in *)
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(* Swhen(e, *)
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(* match (shortname c) with *)
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(* "true" -> Svar(prefix ^ (name var)) *)
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(* | "false" -> Snot(Svar(prefix ^ (name var))) *)
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(* | _ -> assert false) *)
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| Minils.Ewhen(e, _c, _var) ->
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translate prefix e
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| Minils.Emerge(ck,[(c1,e1);(_c2,e2)]) ->
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let e1 = translate_ext prefix e1 in
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let e2 = translate_ext prefix e2 in
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let e1,e2 =
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begin
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match (shortname c1) with
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"true" -> e1,e2
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| "false" -> e2,e1
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| _ -> assert false
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end in
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let var_ck = Svar(prefix ^ (name ck)) in
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begin match (actual_ty e.Minils.e_ty) with
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| Tbool -> Sdefault(Swhen(e1,var_ck),e2)
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| Tint -> a_part var_ck (a_const (Sconst(Cint(0)))) e1 e2
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| Tother -> assert false
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end
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| Minils.Eapp({Minils.a_op = Minils.Eifthenelse},[e1;e2;e3],_) ->
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let e1 = translate_ext prefix e1 in
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let e2 = translate_ext prefix e2 in
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let e3 = translate_ext prefix e3 in
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begin match (actual_ty e.Minils.e_ty) with
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| Tbool -> Sdefault(Swhen(e2,e1),e3)
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| Tint -> a_part e1 (a_const (Sconst(Cint(0)))) e2 e3
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| Tother -> assert false
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end
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| Minils.Estruct(_) ->
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failwith("Sigali: structures not implemented")
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| Minils.Eiterator(_,_,_,_,_,_) ->
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failwith("Sigali: iterators not implemented")
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| Minils.Eapp({Minils.a_op = Minils.Enode(_)},_,_) ->
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failwith("Sigali: node in expressions; programs should be normalized")
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| Minils.Efby(_,_) ->
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failwith("Sigali: fby in expressions; programs should be normalized")
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| Minils.Eapp(_,_,_) ->
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Format.printf "Application : %a@\n"
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Mls_printer.print_exp e;
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failwith("Sigali: not supported application")
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| Minils.Emerge(_, _) -> assert false
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end in
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let var_ck = Svar(prefix ^ (name ck)) in
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begin match (actual_ty e.Minils.e_ty) with
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| Tbool -> Sdefault(Swhen(e1,var_ck),e2)
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| Tint -> a_part var_ck (a_const (Sconst(Cint(0)))) e1 e2
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| Tother -> assert false
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end
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| Minils.Eapp({Minils.a_op = Minils.Eifthenelse},[e1;e2;e3],_) ->
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let e1 = translate_ext prefix e1 in
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let e2 = translate_ext prefix e2 in
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let e3 = translate_ext prefix e3 in
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begin match (actual_ty e.Minils.e_ty) with
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| Tbool -> Sdefault(Swhen(e2,e1),e3)
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| Tint -> a_part e1 (a_const (Sconst(Cint(0)))) e2 e3
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| Tother -> assert false
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end
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| Minils.Estruct(_)
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| Minils.Eiterator(_,_,_,_,_,_) ->
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raise Untranslatable
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| Minils.Eapp({Minils.a_op = Minils.Enode(_)},_,_) ->
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failwith("Sigali: node in expressions; programs should be normalized")
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| Minils.Efby(_,_) ->
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failwith("Sigali: fby in expressions; programs should be normalized")
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| Minils.Eapp(_,_,_) ->
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raise Untranslatable
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| Minils.Emerge(_, _) -> assert false
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let rec translate_eq f
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(acc_states,acc_init,acc_inputs,acc_eqs)
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@ -218,26 +238,44 @@ let rec translate_eq f
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let { Minils.e_desc = desc } = e in
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match pat, desc with
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| Minils.Evarpat(n), Minils.Efby(opt_c, e) ->
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let sn = prefixed (name n) in
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let acc_eqs,acc_init =
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match opt_c with
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| None -> acc_eqs,Cfalse::acc_init
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| Some(c) ->
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let c = translate_static_exp c in
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| Minils.Evarpat(n), Minils.Efby(opt_c, e') ->
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begin match (actual_ty e.Minils.e_ty) with
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| Tbool ->
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begin try
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let sn = prefixed (name n) in
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let acc_eqs,acc_init =
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match opt_c with
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| None -> acc_eqs,Cfalse::acc_init
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| Some(c) ->
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let c = translate_static_exp c in
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(extend
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initialisations
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(Slist[Sequal(Svar(sn),Sconst(c))]))::acc_eqs,
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c::acc_init
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in
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let e_next = translate_ext prefix e' in
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let e_next = translate_ck prefix e_next ck in
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(n,sn)::acc_states,
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acc_init,acc_inputs,
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(extend
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initialisations
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(Slist[Sequal(Svar(sn),Sconst(c))]))::acc_eqs,
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c::acc_init
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in
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let e_next = translate_ext prefix e in
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let e_next = translate_ck prefix e_next ck in
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(n,sn)::acc_states,
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acc_init,acc_inputs,
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(extend
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evolutions
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(Slist[Sdefault(e_next,Svar(sn))]))
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::acc_eqs
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evolutions
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(Slist[Sdefault(e_next,Svar(sn))]))
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::acc_eqs
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with Untranslatable ->
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untranslatable_warn e;
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(* e is abstracted ; n is Boolean and can be added as
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uncontrollable input *)
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current_inputs := IdentSet.add n !current_inputs;
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acc_states,acc_init,
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(acc_inputs @ [(n,(prefixed (name n)))]),
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acc_eqs
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end
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| _ ->
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untranslatable_warn e;
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(* Mark n as input: unusable as local variable *)
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current_inputs := IdentSet.add n !current_inputs;
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acc_states,acc_init,acc_inputs,acc_eqs
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end
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| pat, Minils.Eapp({ Minils.a_op = Minils.Enode _f; }, _e_list, None) ->
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(*
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(y1,...,yp) = f(x1,...,xn)
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@ -248,21 +286,33 @@ let rec translate_eq f
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let ident_list = translate_pat pat in
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let acc_inputs =
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acc_inputs @
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(List.map (fun id -> (id,(prefixed (name id)))) ident_list) in
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(List.map
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(fun id ->
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current_inputs := IdentSet.add id !current_inputs;
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(id,(prefixed (name id))))
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ident_list) in
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acc_states,acc_init,
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acc_inputs,acc_eqs
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| Minils.Evarpat(n), _ ->
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(* assert : no fby, no node application in e *)
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let e' = translate prefix e in
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(* let e' = *)
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(* begin match (actual_ty e.Minils.e_ty) with *)
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(* | Tbool -> translate_ck prefix e' ck *)
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(* | _ -> e' *)
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(* end in *)
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acc_states,acc_init,
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acc_inputs,
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{ stmt_name = prefixed (name n);
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stmt_def = e' }::acc_eqs
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begin try
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(* assert : no fby, no node application in e *)
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let e' = translate prefix e in
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(* let e' = *)
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(* begin match (actual_ty e.Minils.e_ty) with *)
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(* | Tbool -> translate_ck prefix e' ck *)
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(* | _ -> e' *)
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(* end in *)
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acc_states,acc_init,
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acc_inputs,
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{ stmt_name = prefixed (name n);
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stmt_def = e' }::acc_eqs
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with Untranslatable ->
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untranslatable_warn e;
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current_inputs := IdentSet.add n !current_inputs;
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acc_states,acc_init,
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(acc_inputs @ [(n,(prefixed (name n)))]),
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acc_eqs
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end
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| _ -> assert false
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let translate_eq_list f eq_list =
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@ -311,6 +361,15 @@ let translate_node
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Minils.n_input = i_list; Minils.n_output = o_list;
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Minils.n_local = _d_list; Minils.n_equs = eq_list;
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Minils.n_contract = contract } as node) =
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current_inputs :=
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List.fold_left
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(fun set v_d -> IdentSet.add v_d.Minils.v_ident set)
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IdentSet.empty
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i_list;
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(* keep only Boolean inputs *)
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let i_list =
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List.filter
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(fun { Minils.v_type = ty } -> (actual_ty ty) = Tbool) i_list in
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(* every variable is prefixed by its node name *)
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let inputs =
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List.map
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