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open Format
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open LustreSpec
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3
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open Machine_code
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4
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open Corelang
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open C_backend_common
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open C_backend_spec
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7
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open Utils
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8
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open Types
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9
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let fullExists () = !Options.acsl_spec_fullExists
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let rec list_to_partial l = match l with
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| [] -> [[]]
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| _::q -> l::(list_to_partial q)
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(* Print a function call/declaration in acsl *)
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let pp_acsl_fun name fmt args =
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fprintf fmt "%s(@[<v>%a@])"
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name
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(Utils.fprintf_list ~sep:",@ " (fun fmt f-> f fmt)) args
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(* Print an invariant call/decl in acsl *)
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let pp_acsl_fun_init name self inst fmt mem =
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let arg = fun fmt-> (match inst, mem with
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| x, None -> fprintf fmt "%a %s" pp_machine_memtype_name name self
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| "", Some "" -> fprintf fmt "%s" self
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| "", Some m -> fprintf fmt "\\at(*%s, %s)" self m
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| x, Some "" -> fprintf fmt "%s.%s" self inst
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| x, Some m -> fprintf fmt "\\at(%s->%s, %s)" self inst m)
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in
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pp_acsl_fun ("init_"^name) fmt [arg]
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let preprocess_acsl_instr calls outputs instr =
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match instr with
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| MStep ([i0], i, vl) when Basic_library.is_internal_fun i && (not (List.mem i0 outputs)) ->
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Some (i0, Fun (i, vl))
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| MStep ([i0], i, vl) when (not (Basic_library.is_internal_fun i)) && (node_name (fst (List.assoc i calls)) = "_arrow") && (not (List.mem i0 outputs)) ->
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assert (List.length vl == 2);
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Some (i0, Fun ("arrow_"^i, vl))
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| MLocalAssign (i,v) when not (List.mem i outputs) ->
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Some (i, v)
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| _ -> None
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let pp_cast fmt = function
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| Types.Tbool -> fprintf fmt "(_Bool)"
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| Types.Treal -> fprintf fmt "(double)"
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| Types.Tint -> fprintf fmt "(int)"
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| _ -> assert false
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let getFunType i args =
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match i, args with
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| "ite", [v1; v2; v3] -> v2
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| "uminus", [v] -> v
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| "not", [v] -> v
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| "impl", [v1; v2] -> v1
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| "=", [v1; v2] -> Types.Tbool
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| "mod", [v1; v2] -> v1
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| "xor", [v1; v2] -> v1
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| _, [v1; v2] -> v1
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| _ -> assert false
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let rec get_val_type v =
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match v with
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| Cst _
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| LocalVar _
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| StateVar _-> Machine_code.get_val_type v
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| Fun (n, vl) -> getFunType n (List.map get_val_type vl)
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| Array _
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| Access _
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| Power _ -> assert false
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let get_var_type t = (Types.repr t.var_type).Types.tdesc
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(* Print a machine instruction in acsl for transition lemma *)
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let rec pp_acsl_instr init vars instances calls self pointer fmt instr =
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let mem1 = if init then self else (self^"1") in
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let mem2 = if init then self else (self^"2") in
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match instr with
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| MReset i ->
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let (node, static) = List.assoc i calls in
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assert (List.length static == 0);
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if node_name node = "_arrow" then
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fprintf fmt "(%s.%s._reg._first==1)" self i
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else
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pp_acsl_fun_init (node_name node) self i fmt (Some "")
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| MLocalAssign (i,v) ->
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(match i.var_type.tdesc with Tbool -> fprintf fmt "((!%a) == (!%a))" | _ -> fprintf fmt "(%a == %a)")
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(pp_acsl_var_read "" pointer) i
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(pp_acsl_val mem1 (pp_acsl_var_read "" pointer)) v
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| MStateAssign (i,v) ->
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(match i.var_type.tdesc with Tbool -> fprintf fmt "((!%a) == (!%a))" | _ -> fprintf fmt "(%a == %a)")
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(pp_acsl_val mem2 (fun fmt v-> fprintf fmt "%s" v.var_id)) (StateVar i)
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(pp_acsl_val mem1 (pp_acsl_var_read "" pointer)) v
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| MStep ([i0], i, vl) when Basic_library.is_internal_fun i ->
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pp_acsl_instr init vars calls instances self pointer fmt (MLocalAssign (i0, Fun (i, vl)))
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| MStep ([i0], i, [x;y]) when (not (Basic_library.is_internal_fun i)) && (node_name (fst (List.assoc i calls)) = "_arrow") ->
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fprintf fmt "(%a==(%s1.%s._reg._first?(%a):(%a))) && (%s2.%s._reg._first==0)"
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(pp_acsl_var_read "" pointer) i0
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self i
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(pp_acsl_val mem1 (pp_acsl_var_read "" [])) x
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(pp_acsl_val mem1 (pp_acsl_var_read "" [])) y
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self i
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| MStep (il, i, vl) ->
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let pp_val fmt x = (match get_val_type x with Types.Tbool -> fprintf fmt "%a" | _ -> fprintf fmt "%a") (pp_acsl_val mem1 (pp_acsl_var_read "" [])) x in
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pp_acsl_fun ("Ctrans_"^(node_name (fst (List.assoc i calls)))) fmt
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((List.map (fun x fmt-> fprintf fmt "%a" (*pp_cast (get_val_type x)*) pp_val x) vl)@
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(List.map (fun x fmt-> fprintf fmt "%a" (*pp_cast (get_var_type x)*) (pp_acsl_var_read "" []) x) il)@
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(try ignore(List.assoc i instances);[(fun fmt->fprintf fmt "%s1.%s" self i);(fun fmt->fprintf fmt "%s2.%s" self i)] with Not_found -> []))
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| MBranch (g,hl) -> assert false (*TODO: useless : ????
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let t = fst (List.hd hl) in
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if hl <> [] && (t = tag_true || t = tag_false) then
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let tl = try List.assoc tag_true hl with Not_found -> [] in
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let el = try List.assoc tag_false hl with Not_found -> [] in
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fprintf fmt "((%a)?(%a%s):(%a%s))"
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(pp_acsl_val mem1 (pp_acsl_var_read pointer)) g
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(Utils.fprintf_list ~sep:"&& " (pp_acsl_instr init vars calls self pointer)) tl
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(if List.length tl == 0 then "1" else "")
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(Utils.fprintf_list ~sep:"&& " (pp_acsl_instr init vars calls self pointer)) el
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(if List.length el == 0 then "1" else "")
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else assert false*)
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(* Print all machine instructions in acsl for transition lemma *)
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let pp_acsl_instrs init outputs self pointer instances calls vars fmt instrs =
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if List.length instrs == 0 then fprintf fmt "\\true" else
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let handle (locals, instrs) i =
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match preprocess_acsl_instr calls outputs i with
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| None -> (locals, i::instrs)
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| Some l -> (l::locals, instrs)
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in
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let pp_let fmt (i, v) =
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match v with
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| Fun (s, [x;y]) when String.length s >= 6 && String.sub s 0 6 = "arrow_" ->
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let var = String.sub s 6 (String.length s - 6) in
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fprintf fmt "\\let %s = %s1.%s._reg._first?%a:%a; (%s2.%s._reg._first==0) &&"
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i.var_id
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self var
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(pp_acsl_val (self^"1") (pp_acsl_var_read "" [])) x
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(pp_acsl_val (self^"1") (pp_acsl_var_read "" [])) y
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self var
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| _ ->
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fprintf fmt "\\let %s = %a;"
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i.var_id
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(pp_acsl_val (self^"1") (pp_acsl_var_read "" pointer)) v
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in
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let (locals, instrs) = if fullExists () then ([], instrs) else List.fold_left handle ([], []) instrs in
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fprintf fmt "%a@,%a"
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(Utils.fprintf_list ~sep:"@," pp_let)
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(List.rev locals)
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(Utils.fprintf_list ~sep:" &&@," (pp_acsl_instr init vars instances calls self pointer))
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instrs
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(* Take a dependance and print it for invariant predicate *)
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(*
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let pp_acsl_dep self instances fmt = function
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| Dep_Var s -> fprintf fmt "%s2._reg.%s == %s1._reg.%s" self s self s
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| Dep_Node s ->
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pp_acsl_fun ("inv_"^(node_name (fst (List.assoc s instances)))) fmt [fun fmt->fprintf fmt "%s1.%s" self i];
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fprintf fmt "&&@, %t == %t" (pp_acsl_at self s)
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(pp_acsl_at self s)
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*)
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(*
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166
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Require Why3.
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167
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intros.
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168
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unfold P_trans_AltitudeControl.
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repeat split.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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184
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why3 "Z3" timelimit 10.
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185
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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why3 "Z3" timelimit 10.
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assert (a_9 = F_AltitudeControl_mem_ni_1 a_6).
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why3 "Z3" timelimit 10.
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assert (a_10 = F_AltitudeControl_mem_ni_1 a_7).
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unfold F_AltitudeControl_mem_ni_1.
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unfold a_7.
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unfold Load_S_AltitudeControl_mem.
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unfold a_10.
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unfold a_8.
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196
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unfold havoc in H36.
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unfold get.
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clear.
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rewrite <- H48.
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200
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rewrite <- H49.
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201
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apply H47.
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202
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*)
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203
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204
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(* Print a transition call/decl in acsl *)
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let pp_acsl_fun_trans infos pre name inputs outputs suffix flag_output self flag_mem locals fmt existential =
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let (locals, existential) = (*([], match existential with None -> None | Some x -> Some []) else*)
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match infos with
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| None -> (locals, existential)
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209
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| Some (instrs, calls) ->
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let nonlocals = List.fold_left (fun l x-> match preprocess_acsl_instr calls outputs x with | Some (i, _) -> i::l | None -> l) [] instrs in
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(
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(if not (fullExists ()) then List.filter (fun x-> not (List.mem x nonlocals)) else fun x -> x) locals,
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match existential with None -> None | Some existential -> Some ((if not (fullExists ()) then List.filter (fun x-> not (List.mem x nonlocals)) else fun x -> x) existential)
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)
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215
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in
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216
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let mems = function 1 -> "Pre" | 2 -> "Here" | _ -> assert false in
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217
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let pp_self_read =
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218
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if flag_mem then fun i fmt-> (match i with 1 -> fprintf fmt "\\at(*%s, Pre)" self | 2 -> fprintf fmt "(*%s)" self | _ -> assert false)
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219
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else fun i fmt-> fprintf fmt "%s%i" self (match suffix with None -> i | Some s -> s+i-1)
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220
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in
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221
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let (pp_var, pp_self) =
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222
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match existential with
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223
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| None -> ((fun i -> pp_acsl_var_decl), (fun i fmt-> fprintf fmt "%a %s%i" pp_machine_memtype_name name self i))
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224
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| Some ex -> (if List.length ex != 0 then fprintf fmt "\\exists %a;@," (Utils.fprintf_list ~sep:";@,\\exists " pp_acsl_var_decl) ex);
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225
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((fun i -> pp_acsl_var_read i (if flag_output then outputs else [])), pp_self_read)
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226
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in
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227
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let pp_vars = List.map (fun x fmt-> match suffix with None-> pp_var "" fmt x | Some i -> fprintf fmt "%a" (pp_var (string_of_int (i+1))) x) in
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228
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(pp_acsl_fun (pre^"trans_"^name)) fmt
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229
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((pp_vars (inputs@outputs))@(if not (self = "") then [pp_self 1;pp_self 2] else [])@(pp_vars locals))
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230
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231
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(* Print an invariant call/decl in acsl *)
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232
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let pp_acsl_fun_inv depth name self fmt mem =
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233
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let arg = fun fmt-> (match mem with
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234
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| None -> fprintf fmt "%a %s%i" pp_machine_memtype_name name self depth
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235
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| Some "" -> fprintf fmt "%s" self
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236
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| Some "Here" -> fprintf fmt "*%s" self
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237
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| Some m -> fprintf fmt "\\at(*%s, %s)" self m)
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238
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in
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239
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pp_acsl_fun ("inv_"^name) fmt [arg]
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240
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241
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(* Print an invariant call/decl in acsl *)
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242
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let pp_acsl_inv depth name inputs outputs self fmt spec =
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243
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let rec iter base x = function
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244
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| i when i = base-1 -> []
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245
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| i -> (i, x)::(iter base x (i-1))
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246
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in
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247
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let rec iterList base = function
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248
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| [] -> []
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249
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| t::q -> (iter base t depth)@(iterList base q)
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250
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in
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251
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let trans_pred fmt i =
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252
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fprintf fmt "%a" (pp_acsl_fun_trans None "C" name inputs outputs (Some i) false self false []) (Some [])
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253
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in
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254
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let pp_eexpr_expr self i j fmt ee =
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255
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fprintf fmt "spec_%i(%a, %s%i)" ee.muid (Utils.fprintf_list ~sep:", " (pp_acsl_var_read (string_of_int j) [])) ee.mmstep_logic.step_inputs self i
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256
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in
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257
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let spec_pred cor preds fmt i =
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258
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let j = if cor then i + 1 else i in
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259
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if List.length preds != 0 then
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260
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fprintf fmt "(%a)%t" (Utils.fprintf_list ~sep:"&&@," (pp_eexpr_expr self i j)) preds (fun fmt-> if cor then fprintf fmt " &&@," else ())
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261
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else ()
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262
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in
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263
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let aux fmt base =
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264
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let selfs = iter base self (depth-1) in
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265
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let ios = iterList (base + 1) (inputs@outputs) in
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266
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(if List.length selfs == 0 && List.length ios == 0 then
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267
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fprintf fmt "(%a%t%a%t)"
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268
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else
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269
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fprintf fmt "(\\exists %a%t%a;@,%a%t%a%t)"
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270
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(Utils.fprintf_list ~sep:", " (fun fmt (i, x)-> fprintf fmt "%a %s%i" pp_machine_memtype_name name self i)) selfs
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271
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(Utils.pp_final_char_if_non_empty ", " (iter base self (depth-1)))
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272
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(Utils.fprintf_list ~sep:", " (fun fmt (i, x)-> fprintf fmt "%a%i" pp_acsl_var_decl x i)) ios
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273
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)
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274
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(Utils.fprintf_list ~sep:"&&@," (fun fmt (i, f)-> fprintf fmt "%a" f i)) (iter base trans_pred (depth-1))
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275
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(Utils.pp_final_char_if_non_empty "&&@," (iter base trans_pred (depth-1)))
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276
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(Utils.fprintf_list ~sep:"" (fun fmt (i, f)-> fprintf fmt "%a" f i)) (iter base (spec_pred true spec.m_requires) (depth-1))
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277
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(fun fmt->
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278
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if base == 0 then
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279
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Utils.fprintf_list ~sep:"&&@," (fun fmt (i, f)-> fprintf fmt "%a" f i) fmt (iter (base+1) (spec_pred false spec.m_ensures) depth)
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280
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else
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281
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pp_acsl_fun_init name (self^(string_of_int base)) "" fmt (Some "")
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282
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)
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283
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in
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284
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Utils.fprintf_list ~sep:"||@," (fun fmt (i, f)-> fprintf fmt "%a" f i) fmt (iter 0 aux depth)
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285
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286
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(* Print the invariant lemma *)
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287
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let pp_acsl_lem_inv depth name inputs outputs self fmt spec =
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288
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let pp_eexpr_expr self j fmt ee =
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289
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fprintf fmt "spec_%i(%a, %s%i)" ee.muid (Utils.fprintf_list ~sep:", " (pp_acsl_var_read "" [])) ee.mmstep_logic.step_inputs self j
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290
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in
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291
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fprintf fmt "\\forall %a %s1, %s2, %a;@,%a==>@,%a==>@,%a%t%a"
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292
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pp_machine_memtype_name name self self
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293
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(Utils.fprintf_list ~sep:", " pp_acsl_var_decl) (inputs@outputs)
|
|
294
|
(pp_acsl_fun_inv depth name (self^"1")) (Some "")
|
|
295
|
(pp_acsl_fun_trans None "C" name inputs outputs None false self false []) (Some [])
|
|
296
|
(Utils.fprintf_list ~sep:"==>@," (pp_eexpr_expr self 1)) spec.m_requires
|
|
297
|
(Utils.pp_final_char_if_non_empty "==>@," spec.m_requires)
|
|
298
|
(pp_acsl_fun_inv depth name (self^"2")) (Some "")
|
|
299
|
|
|
300
|
(* Print lemma init *)
|
|
301
|
let pp_acsl_lem_init k depth name inputs outputs self fmt spec =
|
|
302
|
let rec iter base x = function
|
|
303
|
| i when i = base-1 -> []
|
|
304
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| i -> (i, x)::(iter base x (i-1))
|
|
305
|
in
|
|
306
|
let rec iterList base = function
|
|
307
|
| [] -> []
|
|
308
|
| t::q -> (iter base t depth)@(iterList base q)
|
|
309
|
in
|
|
310
|
let trans_pred fmt i =
|
|
311
|
fprintf fmt "%a" (pp_acsl_fun_trans None "C" name inputs outputs (Some i) false self false []) (Some [])
|
|
312
|
in
|
|
313
|
let spec_pred fmt i =
|
|
314
|
let pp_eexpr_expr self j fmt ee =
|
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315
|
fprintf fmt "spec_%i(%a, %s%i)" ee.muid (Utils.fprintf_list ~sep:", " (pp_acsl_var_read (string_of_int i) [])) ee.mmstep_logic.step_inputs self j
|
|
316
|
in
|
|
317
|
fprintf fmt "%a(%a)"
|
|
318
|
(Utils.fprintf_list ~sep:"" ((fun fmt (w, x)-> fprintf fmt "%a%t"
|
|
319
|
(Utils.fprintf_list ~sep:"==>@," (pp_eexpr_expr self (w))) spec.m_requires
|
|
320
|
(Utils.pp_final_char_if_non_empty "==>@," spec.m_requires)
|
|
321
|
))) (iter k None (depth -1))
|
|
322
|
(Utils.fprintf_list ~sep:"&&@," (pp_eexpr_expr self (i))) spec.m_ensures
|
|
323
|
in
|
|
324
|
let aux fmt base =
|
|
325
|
let selfs = iter base self (depth) in
|
|
326
|
let ios = iterList (base + 1) (inputs@outputs) in
|
|
327
|
(if List.length selfs == 0 && List.length ios == 0 then
|
|
328
|
fprintf fmt "(%a%t%t)"
|
|
329
|
else
|
|
330
|
fprintf fmt "\\forall %a%t%a;@,%a%t%t"
|
|
331
|
(Utils.fprintf_list ~sep:", " (fun fmt (i, x)-> fprintf fmt "%a %s%i" pp_machine_memtype_name name self i)) selfs
|
|
332
|
(Utils.pp_final_char_if_non_empty ", " (iter base self (depth-1)))
|
|
333
|
(Utils.fprintf_list ~sep:", " (fun fmt (i, x)-> fprintf fmt "%a%i" pp_acsl_var_decl x i)) ios
|
|
334
|
)
|
|
335
|
(Utils.fprintf_list ~sep:"==>@," (fun fmt (i, f)-> fprintf fmt "%a" f i)) (iter base trans_pred (depth-1))
|
|
336
|
(Utils.pp_final_char_if_non_empty "==>@," (iter base trans_pred (depth-1)))
|
|
337
|
(fun fmt->
|
|
338
|
pp_acsl_fun_init name (self^(string_of_int base)) "" fmt (Some "")
|
|
339
|
)
|
|
340
|
in
|
|
341
|
fprintf fmt "%a ==> %a" aux k spec_pred depth
|
|
342
|
|
|
343
|
(* Print the spec lemma *)
|
|
344
|
let pp_acsl_lem_spec depth name inputs outputs self fmt spec =
|
|
345
|
let pp_eexpr_expr self j fmt ee =
|
|
346
|
fprintf fmt "spec_%i(%a, %s%i)" ee.muid (Utils.fprintf_list ~sep:", " (pp_acsl_var_read "" [])) ee.mmstep_logic.step_inputs self j
|
|
347
|
in
|
|
348
|
fprintf fmt "\\forall %a %s1, %s2, %a;@,%a==>@,%a==>@,%a%t%a"
|
|
349
|
pp_machine_memtype_name name self self
|
|
350
|
(Utils.fprintf_list ~sep:", " pp_acsl_var_decl) (inputs@outputs)
|
|
351
|
(pp_acsl_fun_inv depth name (self^"1")) (Some "")
|
|
352
|
(pp_acsl_fun_trans None "C" name inputs outputs None false self false []) (Some [])
|
|
353
|
(Utils.fprintf_list ~sep:"==>@," (pp_eexpr_expr self 1)) spec.m_requires
|
|
354
|
(Utils.pp_final_char_if_non_empty "==>@," spec.m_requires)
|
|
355
|
(Utils.fprintf_list ~sep:"&&@," (pp_eexpr_expr self 2)) spec.m_ensures
|
|
356
|
|
|
357
|
let getDepth m =
|
|
358
|
try (
|
|
359
|
match (List.assoc ["k"] (List.flatten (List.map (fun x-> x.annots) m.mannot))).eexpr_qfexpr.expr_desc with
|
|
360
|
| (Expr_const (Const_int k)) -> k
|
|
361
|
| _ -> 0
|
|
362
|
) with Not_found -> 0
|
|
363
|
|
|
364
|
(* Get the instructions from acsl spec effect *)
|
|
365
|
let get_instrs_effect spec =
|
|
366
|
let effects = spec.m_requires@spec.m_ensures@
|
|
367
|
(List.fold_left
|
|
368
|
(fun accu (_,assumes, ensures) -> assumes@ensures@accu)
|
|
369
|
[] spec.m_behaviors)
|
|
370
|
in
|
|
371
|
let effects = List.filter (fun ee -> ee.mmstep_effects.step_instrs <> []) effects in
|
|
372
|
List.flatten (List.map (fun e -> e.mmstep_effects.step_instrs) effects)
|
|
373
|
|
|
374
|
let get_instrs_effect_init spec =
|
|
375
|
let effects = spec.m_requires@spec.m_ensures@
|
|
376
|
(List.fold_left
|
|
377
|
(fun accu (_,assumes, ensures) -> assumes@ensures@accu)
|
|
378
|
[] spec.m_behaviors)
|
|
379
|
in
|
|
380
|
|
|
381
|
let effects = List.filter (fun ee -> ee.mminit <> []) effects in
|
|
382
|
List.flatten (List.map (fun e -> e.mminit) effects)
|
|
383
|
|
|
384
|
module Make =
|
|
385
|
functor (SpecArg: SPECARG) ->
|
|
386
|
struct
|
|
387
|
|
|
388
|
open SpecArg
|
|
389
|
|
|
390
|
module Spec = Make(SpecArg)
|
|
391
|
|
|
392
|
let init m = Spec.init m
|
|
393
|
|
|
394
|
module HdrMod = struct
|
|
395
|
|
|
396
|
(* Print all the proof stuff *)
|
|
397
|
let pp_acsl_def_trans stateless fmt m =
|
|
398
|
let name = m.mname.node_id in
|
|
399
|
let inputs = m.mstep.step_inputs in
|
|
400
|
let outputs = m.mstep.step_outputs in
|
|
401
|
let locals = m.mstep.step_locals in
|
|
402
|
let memory = m.mmemory in
|
|
403
|
let vars = inputs@outputs@locals@memory in
|
|
404
|
let depth = getDepth m in
|
|
405
|
let instrs = match m.mspec with None -> [] | Some spec -> get_instrs_effect (Spec.get_spec m.mname) in
|
|
406
|
let instrs_init = match m.mspec with None -> [] | Some spec -> get_instrs_effect_init (Spec.get_spec m.mname) in
|
|
407
|
let induction = (not stateless) && (getDepth m != 0) in
|
|
408
|
if m.mname.node_id <> arrow_id then (
|
|
409
|
let self = if stateless then "" else mk_self m in
|
|
410
|
fprintf fmt "/*@@ @[<v 3>predicate %a =@;%a;@]@;*/@."
|
|
411
|
(pp_acsl_fun_trans (Some (m.mstep.step_instrs, m.mcalls)) "" name inputs outputs None false self false locals) None
|
|
412
|
(pp_acsl_instrs false outputs self [] m.minstances m.mcalls vars) (m.mstep.step_instrs@instrs);
|
|
413
|
fprintf fmt "/*@@ @[<v 3>predicate %a =@;%a;@]@;*/@."
|
|
414
|
(pp_acsl_fun_trans None "C" name inputs outputs None false self false []) None
|
|
415
|
(pp_acsl_fun_trans (Some (m.mstep.step_instrs, m.mcalls)) "" name inputs outputs None false self false locals) (Some locals);
|
|
416
|
(if not stateless then fprintf fmt "/*@@ @[<v 3>predicate %a =@;%a;@]@;*/@."
|
|
417
|
(pp_acsl_fun_init name self "") None
|
|
418
|
(pp_acsl_instrs true [] self [] m.minstances m.mcalls vars) (m.minit@instrs_init));
|
|
419
|
if induction then (
|
|
420
|
match m.mspec with None -> () | Some spec -> (
|
|
421
|
let spec = (Spec.get_spec m.mname) in
|
|
422
|
fprintf fmt "/*@@ @[<v 3>predicate %a =@;%a;@]@;*/@." (pp_acsl_fun_inv depth name self) None (pp_acsl_inv depth name inputs outputs self) spec;
|
|
423
|
for i = 0 to depth-1 do
|
|
424
|
fprintf fmt "/*@@ @[<v 3>lemma inv_init_%i_%s : @;%a;@]@;*/@." (depth-i) name (pp_acsl_lem_init i depth name inputs outputs self) spec;
|
|
425
|
done;
|
|
426
|
fprintf fmt "/*@@ @[<v 3>lemma inv_spec_%s : @;%a;@]@;*/@." name (pp_acsl_lem_spec depth name inputs outputs self) spec;
|
|
427
|
fprintf fmt "/*@@ @[<v 3>lemma inv_inv_%s : @;%a;@]@;*/@." name (pp_acsl_lem_inv depth name inputs outputs self) spec
|
|
428
|
)
|
|
429
|
))
|
|
430
|
let _print_machine_decl_step_fun_prefix stateless fmt m =
|
|
431
|
let self = mk_self m in
|
|
432
|
let induction = (not stateless) && (getDepth m != 0) in
|
|
433
|
let pre_inv = fun fmt -> fprintf fmt "requires %a;@," (pp_acsl_fun_inv (getDepth m) m.mname.node_id self) (Some "Here") in
|
|
434
|
let post_inv = fun fmt -> fprintf fmt "ensures %a;@," (pp_acsl_fun_inv (getDepth m) m.mname.node_id self) (Some "Here") in
|
|
435
|
let post_trans = fun fmt -> fprintf fmt "ensures %a;@," (pp_acsl_fun_trans None "C" m.mname.node_id m.mstep.step_inputs m.mstep.step_outputs None true (if stateless then "" else self) true []) (Some []) in
|
|
436
|
let pre = match m.mspec with
|
|
437
|
| Some _ when induction -> pre_inv
|
|
438
|
| _ -> fun fmt -> ()
|
|
439
|
in
|
|
440
|
let post = match m.mspec with
|
|
441
|
| Some _ when induction -> fun fmt -> fprintf fmt "%t%t" post_inv post_trans
|
|
442
|
| _ -> post_trans
|
|
443
|
in
|
|
444
|
Spec.HdrMod._print_machine_decl_step_fun_prefix stateless pre post fmt m
|
|
445
|
|
|
446
|
let has_spec_mem m = Spec.HdrMod.has_spec_mem m
|
|
447
|
let pp_registers_struct fmt m = Spec.HdrMod.pp_registers_struct fmt m
|
|
448
|
let print_machine_decl_prefix fmt m =
|
|
449
|
let mems = Machine_code.get_mems m machines in
|
|
450
|
fprintf fmt "%a%a"
|
|
451
|
Spec.HdrMod.print_machine_decl_prefix m
|
|
452
|
(pp_acsl_def_trans (List.length mems == 0)) m
|
|
453
|
let print_machine_decl_step_fun_prefix fmt m = _print_machine_decl_step_fun_prefix false fmt m
|
|
454
|
|
|
455
|
let print_machine_decl_init_fun_prefix fmt m =
|
|
456
|
let self = mk_self m in
|
|
457
|
let post fmt =
|
|
458
|
fprintf fmt "ensures %a;@." (pp_acsl_fun_init m.mname.node_id self "") (Some "Here");
|
|
459
|
match m.mspec with
|
|
460
|
| Some _ when getDepth m != 0 ->
|
|
461
|
fprintf fmt "ensures %a;@." (pp_acsl_fun_inv (getDepth m) m.mname.node_id self) (Some "Here")
|
|
462
|
| _ -> ()
|
|
463
|
|
|
464
|
in
|
|
465
|
Spec.HdrMod._print_machine_decl_init_fun_prefix (fun fmt-> ()) post fmt m
|
|
466
|
|
|
467
|
let print_machine_decl_stateless_fun_prefix fmt m = _print_machine_decl_step_fun_prefix true fmt m
|
|
468
|
|
|
469
|
let print_global_decl fmt = fprintf fmt "/*@@ @[<v 3>lemma missing: \\forall _Bool x; (x != 0) <==> (((int) x) != 0);*/@."
|
|
470
|
end
|
|
471
|
|
|
472
|
module SrcMod =
|
|
473
|
struct
|
|
474
|
let print_step_code_prefix pp_machine_instr stateless fmt m =
|
|
475
|
let inputs = m.mstep.step_inputs in
|
|
476
|
let outputs = m.mstep.step_outputs in
|
|
477
|
let locals = m.mstep.step_locals in
|
|
478
|
let mems = Machine_code.get_mems m machines in
|
|
479
|
let self = if List.length mems == 0 then "" else mk_self m in
|
|
480
|
fprintf fmt "/*@@ensures %a;@,%a*/@,{@,"
|
|
481
|
(pp_acsl_fun_trans None "C" m.mname.node_id m.mstep.step_inputs m.mstep.step_outputs None true (if stateless then "" else self) true []) (Some [])
|
|
482
|
(C_backend_spec.pp_assigns [] stateless machines) m
|
|
483
|
let print_step_code_midfix pp_machine_instr stateless fmt m =
|
|
484
|
let inputs = m.mstep.step_inputs in
|
|
485
|
let outputs = m.mstep.step_outputs in
|
|
486
|
let locals = m.mstep.step_locals in
|
|
487
|
let mems = Machine_code.get_mems m machines in
|
|
488
|
let self = if List.length mems == 0 then "" else mk_self m in
|
|
489
|
let instrs = match m.mspec with None -> [] | Some spec -> get_instrs_effect (Spec.get_spec m.mname) in
|
|
490
|
let memory = m.mmemory in
|
|
491
|
let vars = inputs@outputs@locals@memory in
|
|
492
|
let filtered_existencials = (if not (fullExists ()) then
|
|
493
|
let nonlocals = List.fold_left (fun l x-> match preprocess_acsl_instr m.mcalls outputs x with | Some (i, _) -> i::l | None -> l) [] m.mstep.step_instrs in
|
|
494
|
List.filter (fun x-> not (List.mem x nonlocals))else fun x -> x) locals
|
|
495
|
in
|
|
496
|
Format.fprintf fmt "@,/* Asserting trans predicate: locals are [%a] */@,"
|
|
497
|
(fprintf_list ~sep:", " Printers.pp_var) filtered_existencials;
|
|
498
|
(Utils.fprintf_list ~sep:"@,"
|
|
499
|
(fun fmt x ->
|
|
500
|
fprintf fmt "/*@@ensures %a;@,%a*/@,{@,"
|
|
501
|
(pp_acsl_fun_trans
|
|
502
|
(Some (m.mstep.step_instrs, m.mcalls))
|
|
503
|
"" (* no predicate prefix *)
|
|
504
|
m.mname.node_id
|
|
505
|
inputs
|
|
506
|
outputs
|
|
507
|
None
|
|
508
|
true
|
|
509
|
self
|
|
510
|
true
|
|
511
|
locals
|
|
512
|
)
|
|
513
|
(Some x)
|
|
514
|
(C_backend_spec.pp_assigns (List.map (fun x fmt-> Printers.pp_var_name fmt x) locals) stateless machines) m)
|
|
515
|
)
|
|
516
|
fmt (list_to_partial filtered_existencials)
|
|
517
|
|
|
518
|
let print_step_code_postfix pp_machine_instr stateless fmt m =
|
|
519
|
let inputs = m.mstep.step_inputs in
|
|
520
|
let outputs = m.mstep.step_outputs in
|
|
521
|
let locals = m.mstep.step_locals in
|
|
522
|
let memory = m.mmemory in
|
|
523
|
let vars = inputs@outputs@locals@memory in
|
|
524
|
let mems = Machine_code.get_mems m machines in
|
|
525
|
let self = if List.length mems == 0 then "" else mk_self m in
|
|
526
|
Spec.SrcMod.print_step_code_postfix pp_machine_instr stateless fmt m;
|
|
527
|
|
|
528
|
let filtered_existencials = (if not (fullExists ()) then
|
|
529
|
let nonlocals = List.fold_left (fun l x-> match preprocess_acsl_instr m.mcalls outputs x with | Some (i, _) -> i::l | None -> l) [] m.mstep.step_instrs in
|
|
530
|
List.filter (fun x-> not (List.mem x nonlocals)) else fun x -> x) locals
|
|
531
|
in
|
|
532
|
|
|
533
|
for i = 0 to List.length filtered_existencials + 1 (*+ 1*) do
|
|
534
|
fprintf fmt "}"
|
|
535
|
done (*;
|
|
536
|
fprintf fmt "/*@@%a@,%a*/ {"
|
|
537
|
(pp_acsl_instrs_assert false outputs self m.minstances m.mcalls vars) (m.mstep.step_instrs@instrs)
|
|
538
|
(C_backend_spec.pp_assigns (List.map (fun x fmt-> Printers.pp_var_name fmt x) locals) stateless machines) m*)
|
|
539
|
|
|
540
|
let print_instr_prefix m fmt instr =
|
|
541
|
let inputs = m.mstep.step_inputs in
|
|
542
|
let outputs = m.mstep.step_outputs in
|
|
543
|
let locals = m.mstep.step_locals in
|
|
544
|
let memory = m.mmemory in
|
|
545
|
let mems = Machine_code.get_mems m machines in
|
|
546
|
let pointer = outputs in
|
|
547
|
let self = if List.length mems == 0 then "" else mk_self m in
|
|
548
|
let mem1 = "\\at(*"^self^", Pre)" in
|
|
549
|
let mem2 = "(*"^self^")" in
|
|
550
|
let rec pp_instr fmt = function
|
|
551
|
| MReset i ->
|
|
552
|
let (node, static) = List.assoc i m.mcalls in
|
|
553
|
assert (List.length static == 0);
|
|
554
|
if node_name node = "_arrow" then
|
|
555
|
fprintf fmt "(%s.%s._reg._first==1)" mem2 i
|
|
556
|
else
|
|
557
|
pp_acsl_fun_init (node_name node) mem2 i fmt (Some "")
|
|
558
|
| MLocalAssign (i,v) ->
|
|
559
|
(match i.var_type.tdesc with Tbool -> fprintf fmt "((!%a) == (!%a))" | _ -> fprintf fmt "(%a == %a)")
|
|
560
|
(pp_acsl_var_read "" pointer) i
|
|
561
|
(pp_acsl_val mem1 (pp_acsl_var_read "" pointer)) v
|
|
562
|
| MStateAssign (i,v) ->
|
|
563
|
(match i.var_type.tdesc with Tbool -> fprintf fmt "((!%a) == (!%a))" | _ -> fprintf fmt "(%a == %a)")
|
|
564
|
(pp_acsl_val mem2 (pp_acsl_var_read "" pointer)) (StateVar i)
|
|
565
|
(pp_acsl_val mem1 (pp_acsl_var_read "" pointer)) v
|
|
566
|
| MStep ([i0], i, vl) when Basic_library.is_internal_fun i ->
|
|
567
|
pp_instr fmt (MLocalAssign (i0, Fun (i, vl)))
|
|
568
|
| MStep ([i0], i, [x;y]) when (not (Basic_library.is_internal_fun i)) && (node_name (fst (List.assoc i m.mcalls)) = "_arrow") ->
|
|
569
|
fprintf fmt "(%a==(%s.%s._reg._first?(%a):(%a))) && (%s.%s._reg._first==0)"
|
|
570
|
(pp_acsl_var_read "" pointer) i0
|
|
571
|
mem1 i
|
|
572
|
(pp_acsl_val mem1 (pp_acsl_var_read "" [])) x
|
|
573
|
(pp_acsl_val mem1 (pp_acsl_var_read "" [])) y
|
|
574
|
mem2 i
|
|
575
|
| MStep (il, i, vl) ->
|
|
576
|
let pp_val fmt x = (match get_val_type x with Types.Tbool -> fprintf fmt "%a" | _ -> fprintf fmt "%a") (pp_acsl_val mem1 (pp_acsl_var_read "" pointer)) x in
|
|
577
|
pp_acsl_fun ("Ctrans_"^(node_name (fst (List.assoc i m.mcalls)))) fmt
|
|
578
|
((List.map (fun x fmt-> fprintf fmt "%a" (*pp_cast (get_val_type x)*) pp_val x) vl)@
|
|
579
|
(List.map (fun x fmt-> fprintf fmt "%a" (*pp_cast (get_var_type x)*) (pp_acsl_var_read "" pointer) x) il)@
|
|
580
|
(try ignore(List.assoc i m.minstances);[(fun fmt->fprintf fmt "%s.%s" mem1 i);(fun fmt->fprintf fmt "%s.%s" mem2 i)] with Not_found -> []))
|
|
581
|
| MBranch (g,hl) -> assert false
|
|
582
|
in
|
|
583
|
let mods = match instr with
|
|
584
|
| MReset i -> [fun fmt -> fprintf fmt "%s.%s" mem2 i]
|
|
585
|
| MLocalAssign (i,v) -> [fun fmt -> if List.exists (fun o -> o.var_id = i.var_id) pointer
|
|
586
|
then fprintf fmt "*%s" i.var_id
|
|
587
|
else fprintf fmt "%s" i.var_id]
|
|
588
|
| MStateAssign (i,v) -> [fun fmt -> fprintf fmt "%s._reg.%s" mem2 i.var_id]
|
|
589
|
| MStep ([i0], i, vl) when Basic_library.is_internal_fun i -> [fun fmt -> fprintf fmt "%a" (pp_acsl_var_read "" pointer) i0]
|
|
590
|
| MStep ([i0], i, [x;y]) when (not (Basic_library.is_internal_fun i)) && (node_name (fst (List.assoc i m.mcalls)) = "_arrow") ->
|
|
591
|
[fun fmt-> fprintf fmt "%t, %s.%s" (fun fmt -> if List.exists (fun o -> o.var_id = i0.var_id) pointer
|
|
592
|
then fprintf fmt "*%s" i0.var_id
|
|
593
|
else fprintf fmt "%s" i0.var_id) mem2 i]
|
|
594
|
| MStep (il, i, vl) -> (List.map (fun x fmt-> if List.exists (fun o -> o.var_id = x.var_id) pointer
|
|
595
|
then fprintf fmt "*%s" x.var_id
|
|
596
|
else fprintf fmt "%s" x.var_id) il)@
|
|
597
|
(try ignore(List.assoc i m.minstances);[(fun fmt->fprintf fmt "%s.%s" mem1 i);(fun fmt->fprintf fmt "%s.%s" mem2 i)] with Not_found -> [])
|
|
598
|
| MBranch (g,hl) -> assert false
|
|
599
|
in
|
|
600
|
fprintf fmt "/*@@@,ensures %a;@,assigns %a;@,*/@,{@," pp_instr instr (fprintf_list ~sep:", " (fun fmt x-> x fmt)) mods
|
|
601
|
|
|
602
|
let print_instr_postfix m fmt instr =
|
|
603
|
fprintf fmt "@,}"
|
|
604
|
|
|
605
|
let print_init_code_postfix pp_machine_instr fmt m = Spec.SrcMod.print_init_code_postfix pp_machine_instr fmt m
|
|
606
|
end
|
|
607
|
|
|
608
|
module MakefileMod =
|
|
609
|
struct
|
|
610
|
let other_targets fmt basename nodename dependencies = Spec.MakefileMod.other_targets fmt basename nodename dependencies
|
|
611
|
end
|
|
612
|
|
|
613
|
module MainMod =
|
|
614
|
struct
|
|
615
|
let print_while_prefix fmt m =
|
|
616
|
(match m.mspec with
|
|
617
|
| Some _ when getDepth m != 0 -> fprintf fmt "/*@@ loop invariant %a;*/@," (pp_acsl_fun_inv (getDepth m) m.mname.node_id "main_mem") (Some "")
|
|
618
|
| _ -> ()
|
|
619
|
);
|
|
620
|
end
|
|
621
|
|
|
622
|
module CoqMod =
|
|
623
|
struct
|
|
624
|
|
|
625
|
let repeat n fmt x =
|
|
626
|
for i = 0 to n - 1 do
|
|
627
|
fprintf fmt "%s" x
|
|
628
|
done
|
|
629
|
|
|
630
|
let pp_intro_hyp fmt k =
|
|
631
|
fprintf fmt "(*nb: %i*)\nintros " k;
|
|
632
|
repeat (k-1) fmt "[? ";
|
|
633
|
fprintf fmt "?";
|
|
634
|
repeat (k-1) fmt "]";
|
|
635
|
fprintf fmt ".\n"
|
|
636
|
|
|
637
|
let pp_choose nbcase fmt k =
|
|
638
|
fprintf fmt "(*choose case %i/%i*)\n" (k+1) nbcase;
|
|
639
|
repeat k fmt "right.\n";
|
|
640
|
(if k != nbcase - 1 then fprintf fmt "left.\n")
|
|
641
|
|
|
642
|
let pp_intros_exists fmt =
|
|
643
|
fprintf fmt "repeat eapply ex_intro.\n"
|
|
644
|
|
|
645
|
let pp_split fmt k =
|
|
646
|
fprintf fmt "(*nb goals: %i(split one less)*)\n" k;
|
|
647
|
repeat (k-1) fmt "split.\nFocus 2.\n"
|
|
648
|
|
|
649
|
let pp_eassumption fmt k =
|
|
650
|
repeat k fmt "eassumption.\n"
|
|
651
|
|
|
652
|
|
|
653
|
let pp_apply_lem_init fmt k =
|
|
654
|
fprintf fmt "eapply (Q_inv_init_%i_AltitudeControl).\n" k;
|
|
655
|
let nbgoals = k+1+k+2 in
|
|
656
|
for i = 0 to k-1 do
|
|
657
|
fprintf fmt "Focus %i.\n" (nbgoals-i);
|
|
658
|
fprintf fmt "eassumption.\n";
|
|
659
|
done;
|
|
660
|
for i = 1 to nbgoals-k do
|
|
661
|
fprintf fmt "eassumption.\n";
|
|
662
|
done
|
|
663
|
|
|
664
|
let pp_apply_inv_spec fmt name =
|
|
665
|
fprintf fmt "eapply Q_inv_spec_%s.\n" name;
|
|
666
|
fprintf fmt "Focus 5.\n";
|
|
667
|
for i = 1 to 5 do
|
|
668
|
fprintf fmt "eassumption.\n"
|
|
669
|
done
|
|
670
|
|
|
671
|
let pp_case nbgoals1 nbgoals2 nbgoals3 nbintro nbcase case_hyp case_goal fmt name =
|
|
672
|
let nbgoals = nbgoals1 + nbgoals2 + nbgoals3 in
|
|
673
|
if case_hyp != nbcase - 1 then (
|
|
674
|
fprintf fmt "intros h.\n";
|
|
675
|
fprintf fmt "elim h;clear h.\n"
|
|
676
|
);
|
|
677
|
pp_intro_hyp fmt nbintro;
|
|
678
|
pp_choose nbcase fmt case_goal;
|
|
679
|
pp_intros_exists fmt;
|
|
680
|
pp_split fmt nbgoals;
|
|
681
|
pp_eassumption fmt nbgoals3;
|
|
682
|
(
|
|
683
|
if case_hyp == nbcase -2 then
|
|
684
|
for i = 0 to case_goal - 1 do
|
|
685
|
pp_apply_lem_init fmt (case_goal - i)
|
|
686
|
done
|
|
687
|
else (if case_hyp == nbcase -1 then
|
|
688
|
(pp_apply_inv_spec fmt name;
|
|
689
|
for i = 1 to nbgoals2 - 1 do
|
|
690
|
fprintf fmt "eassumption.\n"
|
|
691
|
done)
|
|
692
|
else
|
|
693
|
())
|
|
694
|
);
|
|
695
|
pp_eassumption fmt nbgoals1
|
|
696
|
|
|
697
|
let pp_code_inv_inv m fmt name =
|
|
698
|
let inputs = m.mstep.step_inputs in
|
|
699
|
let outputs = m.mstep.step_outputs in
|
|
700
|
let locals = m.mstep.step_locals in
|
|
701
|
let memory = m.mmemory in
|
|
702
|
let vars = inputs@outputs@locals@memory in
|
|
703
|
let depth = getDepth m in
|
|
704
|
let nbcase = depth + 1 in
|
|
705
|
let spec = (Spec.get_spec m.mname) in
|
|
706
|
fprintf fmt "intros.\n";
|
|
707
|
fprintf fmt "generalize H2.\n";
|
|
708
|
fprintf fmt "unfold P_inv_%s.\n" name;
|
|
709
|
let computeAnd k = (
|
|
710
|
1*k + (*mems*)
|
|
711
|
(List.length spec.m_requires)*k + (*pre*)
|
|
712
|
(if k == nbcase -1 then 0 else 1), (*init*)
|
|
713
|
(if k == nbcase -1 then (List.length spec.m_ensures) else 0)*k, (*post*)
|
|
714
|
1*k (*trans*)
|
|
715
|
) in
|
|
716
|
for case_hyp = 0 to nbcase - 1 do
|
|
717
|
let case_goal = min (case_hyp+1) (nbcase -1) in
|
|
718
|
let (nbgoals1, nbgoals2, nbgoals3) = computeAnd case_goal in
|
|
719
|
let (nbhyp1, nbhyp2, nbhyp3) = computeAnd case_hyp in
|
|
720
|
let vars = ((List.length inputs) + (List.length outputs) + 1)*case_hyp in
|
|
721
|
let nbintro = vars + nbhyp1 + nbhyp2 + nbhyp3 in
|
|
722
|
fprintf fmt "(*Case %i/%i -> %i/%i*)\n" (case_hyp+1) nbcase (case_goal+1) nbcase;
|
|
723
|
fprintf fmt "(*nb var and hyps in case hyp: %i+%i+%i+%i*)\n" vars nbhyp1 nbhyp2 nbhyp3;
|
|
724
|
fprintf fmt "(*nb goals in case goal : %i+%i+%i*)\n" nbgoals1 nbgoals2 nbgoals3;
|
|
725
|
pp_case nbgoals1 nbgoals2 nbgoals3 nbintro nbcase case_hyp case_goal fmt name
|
|
726
|
done
|
|
727
|
|
|
728
|
let pp_code_inv fmt name =
|
|
729
|
fprintf fmt "intros.\n";
|
|
730
|
fprintf fmt "eapply Q_inv_inv_%s.\n" name;
|
|
731
|
fprintf fmt "Focus 4.\n";
|
|
732
|
fprintf fmt "eassumption.\n";
|
|
733
|
fprintf fmt "eassumption.\n";
|
|
734
|
fprintf fmt "eassumption.\n";
|
|
735
|
fprintf fmt "eassumption.\n"
|
|
736
|
|
|
737
|
(*
|
|
738
|
fprintf fmt "intros;\n";
|
|
739
|
fprintf fmt "eapply Q_inv_inv_%s;" name;
|
|
740
|
fprintf fmt "match goal with | |- context [P_Ctrans_%s]=> eassumption | _ => idtac end;\n" name;
|
|
741
|
fprintf fmt "intuition;\n";
|
|
742
|
fprintf fmt "(match goal with";
|
|
743
|
fprintf fmt " | |- context [if ?t then _ else _] => destruct t\n";
|
|
744
|
fprintf fmt " | _ => idtac\n";
|
|
745
|
fprintf fmt " end);hnf;try omega;intuition.\n"
|
|
746
|
*)
|
|
747
|
|
|
748
|
let pp_coq_goal name goalname code fmt =
|
|
749
|
fprintf fmt "Goal %t.\nProof.\n%aQed.\n\n" goalname code name
|
|
750
|
|
|
751
|
let pp_coq stateless fmt m =
|
|
752
|
match m.mspec with
|
|
753
|
| Some _ ->
|
|
754
|
let name = m.mname.node_id in
|
|
755
|
if name <> arrow_id then (
|
|
756
|
pp_coq_goal name (fun fmt -> fprintf fmt "typed_%s_step_post" name) pp_code_inv fmt;
|
|
757
|
pp_coq_goal name (fun fmt -> fprintf fmt "typed_ref_%s_step_post" name) pp_code_inv fmt;
|
|
758
|
pp_coq_goal name (fun fmt -> fprintf fmt "typed_lemma_inv_inv_%s" name) (pp_code_inv_inv m) fmt;
|
|
759
|
pp_coq_goal name (fun fmt -> fprintf fmt "typed_ref_lemma_missing") (fun fmt name-> fprintf fmt "admit.\n") fmt
|
|
760
|
)
|
|
761
|
| _ -> ()
|
|
762
|
|
|
763
|
end
|
|
764
|
|
|
765
|
end
|
|
766
|
(* Local Variables: *)
|
|
767
|
(* compile-command:"make -C ../../.." *)
|
|
768
|
(* End: *)
|