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1459 lines
62 KiB
1459 lines
62 KiB
(*
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* Copyright (c) 2009 - 2013 Monoidics ltd.
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* Copyright (c) 2013 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*)
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open! Utils
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module L = Logging
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module F = Format
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(** {1 Dotty} *)
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(* When false it prints only the retain cycle part of a prop.
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When true it prints the full property (maybe useful for debug) *)
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let print_full_prop = ref false
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type kind_of_dotty_prop =
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| Generic_proposition
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| Spec_precondition
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| Spec_postcondition of Prop.normal Prop.t (** the precondition associated with the post *)
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| Lambda_pred of int * int * bool
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(* the kind of links between different kinds of nodes*)
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type kind_of_links =
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| LinkExpToExp
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| LinkExpToStruct
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| LinkStructToExp
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| LinkStructToStruct
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| LinkToArray
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| LinkArrayToExp
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| LinkArrayToStruct
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| LinkToSSL
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| LinkToDLL
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| LinkRetainCycle
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(* coordinate identifies a node using two dimension: id is an numerical identifier of the node,*)
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(* lambda identifies in which hpred parameter id lays in*)
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type coordinate = {
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id: int;
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lambda: int;
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}
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(* define a link between two nodes. src_fld/trg_fld define the label of the src/trg field. It is*)
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(* useful for having nodes from within a struct and/or to inside a struct *)
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type link = {
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kind: kind_of_links;
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src: coordinate;
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src_fld: string;
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trg: coordinate;
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trg_fld: string;
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}
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(* type of the visualized boxes/nodes in the graph*)
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type dotty_node =
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| Dotnil of coordinate (* nil box *)
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(* Dotdangling(coo,e,c): dangling box for expression e at coordinate coo and color c *)
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| Dotdangling of coordinate * Exp.t * string
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(* Dotpointsto(coo,e,c): basic memory cell box for expression e at coordinate coo and color c *)
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| Dotpointsto of coordinate * Exp.t * string
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(* Dotstruct(coo,e,l,c): struct box for expression e with field list l at coordinate coo and color c *)
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| Dotstruct of coordinate * Exp.t * (Ident.fieldname * Sil.strexp) list * string * Exp.t
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(* Dotarray(coo,e1,e2,l,t,c): array box for expression e1 with field list l at coordinate coo and color c*)
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(* e2 is the len and t is the type *)
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| Dotarray of coordinate * Exp.t * Exp.t * (Exp.t * Sil.strexp) list * Typ.t * string
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(* Dotlseg(coo,e1,e2,k,h,c): list box from e1 to e2 at coordinate coo and color c*)
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| Dotlseg of coordinate * Exp.t * Exp.t * Sil.lseg_kind * Sil.hpred list * string
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(* Dotlseg(coo,e1,e2,e3,e4,k,h,c): doubly linked-list box from with parameters (e1,e2,e3,e4) at coordinate coo and color c*)
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| Dotdllseg of
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coordinate * Exp.t * Exp.t * Exp.t * Exp.t * Sil.lseg_kind * Sil.hpred list * string
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let mk_coordinate i l = { id = i; lambda = l }
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let mk_link k s sf t tf = { kind = k; src = s; src_fld = sf; trg = t; trg_fld = tf }
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(* list of dangling boxes*)
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let dangling_dotboxes = ref []
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(* list of nil boxes*)
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let nil_dotboxes = ref []
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let exps_neq_zero = ref []
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(* list of fields in the structs *)
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let fields_structs = ref []
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let struct_exp_nodes = ref []
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(* general unique counter to assign a different number to boxex, *)
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(* clusters,subgraphs etc. *)
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let dotty_state_count = ref 0
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let spec_counter = ref 0
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let post_counter = ref 0
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let lambda_counter = ref 0
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let proposition_counter = ref 0
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let target_invisible_arrow_pre = ref 0
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let current_pre = ref 0
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let spec_id = ref 0
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let invisible_arrows = ref false
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let print_stack_info = ref false
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(* replace a dollar sign in a name with a D. We need this because dotty get confused if there is*)
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(* a dollar sign i a label*)
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let strip_special_chars s =
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let b = Bytes.of_string s in
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let replace st c c' =
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if Bytes.contains st c then begin
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let idx = Bytes.index st c in
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try
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Bytes.set st idx c';
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st
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with Invalid_argument _ -> L.out "@\n@\n Invalid argument!!! @\n @.@.@."; assert false
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end else st in
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let s0 = replace b '(' 'B' in
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let s1 = replace s0 '$' 'D' in
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let s2 = replace s1 '#' 'H' in
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let s3 = replace s2 '&' 'E' in
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let s4 = replace s3 '@' 'A' in
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let s5 = replace s4 ')' 'B' in
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let s6 = replace s5 '+' 'P' in
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let s7 = replace s6 '-' 'M' in
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Bytes.to_string s7
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let rec strexp_to_string pe coo f se =
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match se with
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| Sil.Eexp (Exp.Lvar pvar, _) -> F.fprintf f "%a" (Pvar.pp pe) pvar
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| Sil.Eexp (Exp.Var id, _) ->
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if !print_full_prop then
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F.fprintf f "%a" (Ident.pp pe) id
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else ()
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| Sil.Eexp (e, _) ->
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if !print_full_prop then
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F.fprintf f "%a" (Sil.pp_exp_printenv pe) e
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else F.fprintf f "_"
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| Sil.Estruct (ls, _) -> F.fprintf f " STRUCT | { %a } " (struct_to_dotty_str pe coo) ls
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| Sil.Earray(e, idx, _) -> F.fprintf f " ARRAY[%a] | { %a } " (Sil.pp_exp_printenv pe) e (get_contents pe coo) idx
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and struct_to_dotty_str pe coo f ls : unit =
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match ls with
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| [] -> ()
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| (fn, se)::[]-> F.fprintf f "{ <%s%iL%i> %s: %a } " (Ident.fieldname_to_string fn) coo.id coo.lambda (Ident.fieldname_to_string fn) (strexp_to_string pe coo) se
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| (fn, se):: ls'-> F.fprintf f " { <%s%iL%i> %s: %a } | %a" (Ident.fieldname_to_string fn) coo.id coo.lambda (Ident.fieldname_to_string fn) (strexp_to_string pe coo) se (struct_to_dotty_str pe coo) ls'
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and get_contents_sexp pe coo f se =
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match se with
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| Sil.Eexp (e', _) ->
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F.fprintf f "%a" (Sil.pp_exp_printenv pe) e'
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| Sil.Estruct (se', _) ->
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F.fprintf f "| { %a }" (struct_to_dotty_str pe coo) se'
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| Sil.Earray(e', [], _) ->
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F.fprintf f "(ARRAY Size: %a) | { }" (Sil.pp_exp_printenv pe) e'
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| Sil.Earray(e', ((idx, a):: linner), _) ->
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F.fprintf f "(ARRAY Size: %a) | { %a: %a | %a }" (Sil.pp_exp_printenv pe) e' (Sil.pp_exp_printenv pe) idx
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(strexp_to_string pe coo) a (get_contents pe coo) linner
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and get_contents_single pe coo f (e, se) =
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let e_no_special_char = strip_special_chars (Exp.to_string e) in
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F.fprintf f "{ <%s> %a : %a }"
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e_no_special_char (Sil.pp_exp_printenv pe) e (get_contents_sexp pe coo) se
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and get_contents pe coo f = function
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| [] -> ()
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| [idx_se] ->
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F.fprintf f "%a" (get_contents_single pe coo) idx_se
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| idx_se:: l ->
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F.fprintf f "%a | %a" (get_contents_single pe coo) idx_se (get_contents pe coo) l
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(* true if node is the sorce node of the expression e*)
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let is_source_node_of_exp e node =
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match node with
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| Dotpointsto (_, e', _) -> Exp.compare e e' = 0
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| _ -> false
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(* given a node returns its coordinates and the expression. Return -1 in case the expressio doesn.t*)
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(* make sense for that case *)
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let get_coordinate_and_exp dotnode =
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match dotnode with
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| Dotnil(coo) -> (coo, Exp.minus_one)
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| Dotarray (coo, _, _, _, _, _) -> (coo, Exp.minus_one)
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| Dotpointsto (coo, b, _)
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| Dotlseg (coo, b, _, _, _, _)
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| Dotdllseg (coo, b, _, _, _, _, _, _)
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| Dotstruct (coo, b, _, _, _)
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| Dotdangling(coo, b, _) -> (coo, b)
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(* true if a node is of a Dotstruct *)
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let is_not_struct node =
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match node with
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| Dotstruct _ -> false
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| _ -> true
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(* returns the id field of the coordinate of node *)
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let get_coordinate_id node =
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let coo = fst (get_coordinate_and_exp node) in
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coo.id
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let rec look_up_for_back_pointer e dotnodes lambda =
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match dotnodes with
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| [] -> []
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| Dotdllseg(coo, _, _, _, e4, _, _, _):: dotnodes' ->
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if Exp.compare e e4 = 0 && lambda = coo.lambda then [coo.id + 1]
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else look_up_for_back_pointer e dotnodes' lambda
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| _:: dotnodes' -> look_up_for_back_pointer e dotnodes' lambda
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(* get the nodes corresponding to an expression and a lambda*)
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let rec select_nodes_exp_lambda dotnodes e lambda =
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match dotnodes with
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| [] -> []
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| node:: l' ->
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let (coo, e') = get_coordinate_and_exp node in
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if (Exp.compare e e' = 0) && lambda = coo.lambda
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then node:: select_nodes_exp_lambda l' e lambda
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else select_nodes_exp_lambda l' e lambda
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(* look-up the coordinate id in the list of dotnodes those nodes which correspond to expression e*)
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(* this is written in this strange way for legacy reason. It should be changed a bit*)
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let look_up dotnodes e lambda =
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let r = select_nodes_exp_lambda dotnodes e lambda in
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let r'= IList.map get_coordinate_id r in
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r' @ look_up_for_back_pointer e dotnodes lambda
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let reset_proposition_counter () = proposition_counter:= 0
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let reset_dotty_spec_counter () = spec_counter:= 0
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let color_to_str c =
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match c with
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| Black -> "black"
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| Blue -> "blue"
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| Green -> "green"
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| Orange -> "orange"
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| Red -> "red"
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let make_dangling_boxes pe allocated_nodes (sigma_lambda: (Sil.hpred * int) list) =
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let exp_color hpred (exp : Exp.t) =
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if pe.pe_cmap_norm (Obj.repr hpred) == Red then Red
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else pe.pe_cmap_norm (Obj.repr exp) in
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let get_rhs_predicate (hpred, lambda) =
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let n = !dotty_state_count in
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incr dotty_state_count;
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let coo = mk_coordinate n lambda in
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(match hpred with
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| Sil.Hpointsto (_, Sil.Eexp (e, _), _)
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when not (Exp.equal e Exp.zero) && !print_full_prop ->
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let e_color_str = color_to_str (exp_color hpred e) in
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[Dotdangling(coo, e, e_color_str)]
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| Sil.Hlseg (_, _, _, e2, _) when not (Exp.equal e2 Exp.zero) ->
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let e2_color_str = color_to_str (exp_color hpred e2) in
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[Dotdangling(coo, e2, e2_color_str)]
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| Sil.Hdllseg (_, _, _, e2, e3, _, _) ->
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let e2_color_str = color_to_str (exp_color hpred e2) in
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let e3_color_str = color_to_str (exp_color hpred e3) in
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let ll = if not (Exp.equal e2 Exp.zero) then
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[Dotdangling(coo, e2, e2_color_str)]
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else [] in
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if not (Exp.equal e3 Exp.zero) then Dotdangling(coo, e3, e3_color_str):: ll
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else ll
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| Sil.Hpointsto (_, _, _)
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| _ -> [] (* arrays and struct do not give danglings*)
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) in
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let is_allocated d =
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match d with
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| Dotdangling(_, e, _) ->
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IList.exists (fun a -> match a with
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| Dotpointsto(_, e', _)
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| Dotarray(_, _, e', _, _, _)
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| Dotlseg(_, e', _, _, _, _)
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| Dotdllseg(_, e', _, _, _, _, _, _) -> Exp.equal e e'
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| _ -> false
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) allocated_nodes
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| _ -> false (*this should never happen since d must be a dangling node *) in
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let rec filter_duplicate l seen_exp =
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match l with
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| [] -> []
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| Dotdangling(coo, e, color):: l' ->
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if (IList.exists (Exp.equal e) seen_exp) then filter_duplicate l' seen_exp
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else Dotdangling(coo, e, color):: filter_duplicate l' (e:: seen_exp)
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| box:: l' -> box:: filter_duplicate l' seen_exp (* this case cannot happen*) in
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let rec subtract_allocated candidate_dangling =
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match candidate_dangling with
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| [] -> []
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| d:: candidates ->
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if (is_allocated d) then subtract_allocated candidates
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else d:: subtract_allocated candidates in
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let candidate_dangling = IList.flatten (IList.map get_rhs_predicate sigma_lambda) in
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let candidate_dangling = filter_duplicate candidate_dangling [] in
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let dangling = subtract_allocated candidate_dangling in
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dangling_dotboxes:= dangling
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let rec dotty_mk_node pe sigma =
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let n = !dotty_state_count in
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incr dotty_state_count;
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let do_hpred_lambda exp_color = function
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| (Sil.Hpointsto (e, Sil.Earray (e', l, _), Exp.Sizeof (Typ.Tarray (t, _), _, _)), lambda) ->
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incr dotty_state_count; (* increment once more n+1 is the box for the array *)
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let e_color_str = color_to_str (exp_color e) in
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let e_color_str'= color_to_str (exp_color e') in
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[Dotpointsto((mk_coordinate n lambda), e, e_color_str); Dotarray((mk_coordinate (n + 1) lambda), e, e', l, t, e_color_str')]
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| (Sil.Hpointsto (e, Sil.Estruct (l, _), te), lambda) ->
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incr dotty_state_count; (* increment once more n+1 is the box for the struct *)
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let e_color_str = color_to_str (exp_color e) in
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(* [Dotpointsto((mk_coordinate n lambda), e, l, true, e_color_str)] *)
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[Dotpointsto((mk_coordinate n lambda), e, e_color_str);
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Dotstruct((mk_coordinate (n + 1) lambda), e, l, e_color_str, te);]
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| (Sil.Hpointsto (e, _, _), lambda) ->
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let e_color_str = color_to_str (exp_color e) in
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if IList.mem Exp.equal e !struct_exp_nodes then [] else
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[Dotpointsto((mk_coordinate n lambda), e, e_color_str)]
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| (Sil.Hlseg (k, hpara, e1, e2, _), lambda) ->
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incr dotty_state_count; (* increment once more n+1 is the box for last element of the list *)
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let eq_color_str = color_to_str (exp_color e1) in
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[Dotlseg((mk_coordinate n lambda), e1, e2, k, hpara.Sil.body, eq_color_str)]
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| (Sil.Hdllseg (k, hpara_dll, e1, e2, e3, e4, _), lambda) ->
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let e1_color_str = color_to_str (exp_color e1) in
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incr dotty_state_count; (* increment once more n+1 is the box for e4 *)
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[Dotdllseg((mk_coordinate n lambda), e1, e2, e3, e4, k, hpara_dll.Sil.body_dll, e1_color_str)] in
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match sigma with
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| [] -> []
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| (hpred, lambda) :: sigma' ->
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let exp_color (exp : Exp.t) =
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if pe.pe_cmap_norm (Obj.repr hpred) == Red then Red
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else pe.pe_cmap_norm (Obj.repr exp) in
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do_hpred_lambda exp_color (hpred, lambda) @ dotty_mk_node pe sigma'
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let set_exps_neq_zero pi =
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let f = function
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| Sil.Aneq (e, Exp.Const (Const.Cint i)) when IntLit.iszero i ->
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exps_neq_zero := e :: !exps_neq_zero
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| _ -> () in
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exps_neq_zero := [];
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IList.iter f pi
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let box_dangling e =
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let entry_e = IList.filter (fun b -> match b with
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| Dotdangling(_, e', _) -> Exp.equal e e' | _ -> false ) !dangling_dotboxes in
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match entry_e with
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|[] -> None
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| Dotdangling(coo, _, _):: _ -> Some coo.id
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| _ -> None (* NOTE: this cannot be possible since entry_e can be composed only by Dotdangling, see def of entry_e*)
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(* construct a Dotnil and returns it's id *)
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let make_nil_node lambda =
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let n = !dotty_state_count in
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incr dotty_state_count;
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nil_dotboxes:= Dotnil(mk_coordinate n lambda)::!nil_dotboxes;
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n
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let compute_fields_struct sigma =
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fields_structs:=[];
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let rec do_strexp se in_struct =
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match se with
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| Sil.Eexp (e, _) -> if in_struct then fields_structs:= e ::!fields_structs else ()
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| Sil.Estruct (l, _) -> IList.iter (fun e -> do_strexp e true) (snd (IList.split l))
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| Sil.Earray (_, l, _) -> IList.iter (fun e -> do_strexp e false) (snd (IList.split l)) in
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let rec fs s =
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match s with
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| [] -> ()
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| Sil.Hpointsto(_, se, _):: s' -> do_strexp se false; fs s'
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| _:: s' -> fs s' in
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fs sigma
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let compute_struct_exp_nodes sigma =
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struct_exp_nodes:=[];
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let rec sen s =
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match s with
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| [] -> ()
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| Sil.Hpointsto(e, Sil.Estruct _, _):: s' -> struct_exp_nodes:= e::!struct_exp_nodes; sen s'
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| _:: s' -> sen s' in
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sen sigma
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(* returns the expression of a node*)
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let get_node_exp n = snd (get_coordinate_and_exp n)
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let is_nil e prop =
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(Exp.equal e Exp.zero) || (Prover.check_equal (Tenv.create ()) prop e Exp.zero)
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(* an edge is in cycle *)
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let in_cycle cycle edge =
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match cycle with
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| Some cycle' ->
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IList.mem (fun (fn, se) (_,fn',se') ->
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Ident.fieldname_equal fn fn' && Sil.strexp_equal se se') edge cycle'
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| _ -> false
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let node_in_cycle cycle node =
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match cycle, node with
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| Some _, Dotstruct(_, _, l, _,_) -> (* only struct nodes can be in cycle *)
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IList.exists (in_cycle cycle) l
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| _ -> false
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(* compute a list of (kind of link, field name, coo.id target, name_target) *)
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let rec compute_target_struct_fields dotnodes list_fld p f lambda cycle =
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let find_target_one_fld (fn, se) =
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match se with
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| Sil.Eexp (e, _) ->
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if is_nil e p then begin
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let n'= make_nil_node lambda in
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if !print_full_prop then
|
|
[(LinkStructToExp, Ident.fieldname_to_string fn, n',"")]
|
|
else []
|
|
end else
|
|
let nodes_e = select_nodes_exp_lambda dotnodes e lambda in
|
|
(match nodes_e with
|
|
| [] ->
|
|
(match box_dangling e with
|
|
| None -> []
|
|
| Some n' -> [(LinkStructToExp, Ident.fieldname_to_string fn, n',"")]
|
|
)
|
|
| [node] | [Dotpointsto _ ; node] | [node; Dotpointsto _] ->
|
|
let n = get_coordinate_id node in
|
|
if IList.mem Exp.equal e !struct_exp_nodes then begin
|
|
let e_no_special_char = strip_special_chars (Exp.to_string e) in
|
|
let link_kind = if (in_cycle cycle (fn, se)) && (not !print_full_prop) then
|
|
LinkRetainCycle
|
|
else LinkStructToStruct in
|
|
[(link_kind, Ident.fieldname_to_string fn, n, e_no_special_char)]
|
|
end else
|
|
[(LinkStructToExp, Ident.fieldname_to_string fn, n,"")]
|
|
| _ -> (* by construction there must be at most 2 nodes for an expression*)
|
|
L.out "@\n Too many nodes! Error! @\n@.@."; assert false)
|
|
| Sil.Estruct (_, _) -> [] (* inner struct are printed by print_struc function *)
|
|
| Sil.Earray _ -> [] (* inner arrays are printed by print_array function *) in
|
|
match list_fld with
|
|
| [] -> []
|
|
| a:: list_fld' ->
|
|
let targets_a = find_target_one_fld a in
|
|
targets_a @ compute_target_struct_fields dotnodes list_fld' p f lambda cycle
|
|
|
|
(* compute a list of (kind of link, field name, coo.id target, name_target) *)
|
|
let rec compute_target_array_elements dotnodes list_elements p f lambda =
|
|
let find_target_one_element (idx, se) =
|
|
match se with
|
|
| Sil.Eexp (e, _) ->
|
|
if is_nil e p then begin
|
|
let n'= make_nil_node lambda in
|
|
[(LinkArrayToExp, Exp.to_string idx, n',"")]
|
|
end else
|
|
let nodes_e = select_nodes_exp_lambda dotnodes e lambda in
|
|
(match nodes_e with
|
|
| [] ->
|
|
(match box_dangling e with
|
|
| None -> []
|
|
| Some n' -> [(LinkArrayToExp, Exp.to_string idx, n',"")]
|
|
)
|
|
| [node] | [Dotpointsto _ ; node] | [node; Dotpointsto _] ->
|
|
let n = get_coordinate_id node in
|
|
if IList.mem Exp.equal e !struct_exp_nodes then begin
|
|
let e_no_special_char = strip_special_chars (Exp.to_string e) in
|
|
[(LinkArrayToStruct, Exp.to_string idx, n, e_no_special_char)]
|
|
end else
|
|
[(LinkArrayToExp, Exp.to_string idx, n,"")]
|
|
| _ -> (* by construction there must be at most 2 nodes for an expression*)
|
|
L.out "@\n Too many nodes! Error! @\n@.@."; assert false
|
|
)
|
|
| Sil.Estruct (_, _) -> [] (* inner struct are printed by print_struc function *)
|
|
| Sil.Earray _ ->[] (* inner arrays are printed by print_array function *)
|
|
in
|
|
match list_elements with
|
|
| [] -> []
|
|
| a:: list_ele' ->
|
|
let targets_a = find_target_one_element a in
|
|
targets_a @ compute_target_array_elements dotnodes list_ele' p f lambda
|
|
|
|
let compute_target_from_eexp dotnodes e p lambda =
|
|
if is_nil e p then
|
|
let n'= make_nil_node lambda in
|
|
[(LinkExpToExp, n', "")]
|
|
else
|
|
let nodes_e = select_nodes_exp_lambda dotnodes e lambda in
|
|
let nodes_e_no_struct = IList.filter is_not_struct nodes_e in
|
|
let trg = IList.map get_coordinate_id nodes_e_no_struct in
|
|
(match trg with
|
|
| [] ->
|
|
(match box_dangling e with
|
|
| None -> []
|
|
| Some n -> [(LinkExpToExp, n, "")]
|
|
)
|
|
| _ -> IList.map (fun n -> (LinkExpToExp, n, "")) trg
|
|
)
|
|
|
|
(* build the set of edges between nodes *)
|
|
let rec dotty_mk_set_links dotnodes sigma p f cycle =
|
|
let make_links_for_arrays e lie lambda sigma' = (* used for both Earray and ENarray*)
|
|
let src = look_up dotnodes e lambda in
|
|
match src with
|
|
| [] -> assert false
|
|
| n:: nl ->
|
|
let target_list = compute_target_array_elements dotnodes lie p f lambda in
|
|
(* below it's n+1 because n is the address, n+1 is the actual array node*)
|
|
let ff n = IList.map (fun (k, lab_src, m, lab_trg) -> mk_link k (mk_coordinate (n + 1) lambda) (strip_special_chars lab_src) (mk_coordinate m lambda) (strip_special_chars lab_trg)) target_list in
|
|
let links_from_elements = IList.flatten (IList.map ff (n:: nl)) in
|
|
|
|
let trg_label = strip_special_chars (Exp.to_string e) in
|
|
let lnk = mk_link (LinkToArray) (mk_coordinate n lambda) "" (mk_coordinate (n + 1) lambda) trg_label in
|
|
lnk :: links_from_elements @ dotty_mk_set_links dotnodes sigma' p f cycle in
|
|
match sigma with
|
|
| [] -> []
|
|
| (Sil.Hpointsto (e, Sil.Earray(_, lie, _), _), lambda):: sigma' ->
|
|
make_links_for_arrays e lie lambda sigma'
|
|
| (Sil.Hpointsto (e, Sil.Estruct (lfld, _), _), lambda):: sigma' ->
|
|
let src = look_up dotnodes e lambda in
|
|
(match src with
|
|
| [] -> assert false
|
|
| nl ->
|
|
(* L.out "@\n@\n List of nl= "; IList.iter (L.out " %i ") nl; L.out "@.@.@."; *)
|
|
let target_list = compute_target_struct_fields dotnodes lfld p f lambda cycle in
|
|
let ff n = IList.map (fun (k, lab_src, m, lab_trg) ->
|
|
mk_link k (mk_coordinate n lambda) lab_src (mk_coordinate m lambda) lab_trg
|
|
) target_list in
|
|
let nodes_e = select_nodes_exp_lambda dotnodes e lambda in
|
|
let address_struct_id =
|
|
try get_coordinate_id (IList.hd (IList.filter (is_source_node_of_exp e) nodes_e))
|
|
with exn when SymOp.exn_not_failure exn -> assert false in
|
|
(* we need to exclude the address node from the sorce of fields. no fields should start from there*)
|
|
let nl'= IList.filter (fun id -> address_struct_id != id) nl in
|
|
let links_from_fields = IList.flatten (IList.map ff nl') in
|
|
let lnk_from_address_struct = if !print_full_prop then
|
|
let trg_label = strip_special_chars (Exp.to_string e) in
|
|
[mk_link (LinkExpToStruct) (mk_coordinate address_struct_id lambda) ""
|
|
(mk_coordinate (address_struct_id + 1) lambda) trg_label]
|
|
else [] in
|
|
lnk_from_address_struct @ links_from_fields @
|
|
dotty_mk_set_links dotnodes sigma' p f cycle)
|
|
| (Sil.Hpointsto (e, Sil.Eexp (e', _), _), lambda):: sigma' ->
|
|
let src = look_up dotnodes e lambda in
|
|
(match src with
|
|
| [] -> assert false
|
|
| nl -> if !print_full_prop then
|
|
let target_list = compute_target_from_eexp dotnodes e' p lambda in
|
|
let ff n = IList.map (fun (k, m, lab_target) ->
|
|
mk_link k (mk_coordinate n lambda) ""
|
|
(mk_coordinate m lambda) (strip_special_chars lab_target)
|
|
) target_list in
|
|
let ll = IList.flatten (IList.map ff nl) in
|
|
ll @ dotty_mk_set_links dotnodes sigma' p f cycle
|
|
else dotty_mk_set_links dotnodes sigma' p f cycle)
|
|
|
|
| (Sil.Hlseg (_, _, e1, e2, _), lambda):: sigma' ->
|
|
let src = look_up dotnodes e1 lambda in
|
|
(match src with
|
|
| [] -> assert false
|
|
| n:: _ ->
|
|
let (_, m, lab) = IList.hd (compute_target_from_eexp dotnodes e2 p lambda) in
|
|
let lnk = mk_link LinkToSSL (mk_coordinate (n + 1) lambda) "" (mk_coordinate m lambda) lab in
|
|
lnk:: dotty_mk_set_links dotnodes sigma' p f cycle
|
|
)
|
|
| (Sil.Hdllseg (_, _, e1, e2, e3, _, _), lambda):: sigma' ->
|
|
let src = look_up dotnodes e1 lambda in
|
|
(match src with
|
|
| [] -> assert false
|
|
| n:: _ -> (* n is e1's box and n+1 is e4's box *)
|
|
let targetF = look_up dotnodes e3 lambda in
|
|
let target_Flink = (match targetF with
|
|
| [] -> []
|
|
| m:: _ -> [mk_link LinkToDLL (mk_coordinate (n + 1) lambda) "" (mk_coordinate m lambda) ""]
|
|
) in
|
|
let targetB = look_up dotnodes e2 lambda in
|
|
let target_Blink = (match targetB with
|
|
| [] -> []
|
|
| m:: _ -> [mk_link LinkToDLL (mk_coordinate n lambda) "" (mk_coordinate m lambda) ""]
|
|
) in
|
|
target_Blink @ target_Flink @ dotty_mk_set_links dotnodes sigma' p f cycle
|
|
)
|
|
|
|
let print_kind f kind =
|
|
incr dotty_state_count;
|
|
match kind with
|
|
| Spec_precondition ->
|
|
incr dotty_state_count;
|
|
current_pre:=!dotty_state_count;
|
|
F.fprintf f "\n PRE%iL0 [label=\"PRE %i \", style=filled, color= yellow]\n" !dotty_state_count !spec_counter;
|
|
print_stack_info:= true;
|
|
| Spec_postcondition _ ->
|
|
F.fprintf f "\n POST%iL0 [label=\"POST %i \", style=filled, color= yellow]\n" !dotty_state_count !post_counter;
|
|
print_stack_info:= true;
|
|
| Generic_proposition ->
|
|
if !print_full_prop then
|
|
F.fprintf f "\n HEAP%iL0 [label=\"HEAP %i \", style=filled, color= yellow]\n"
|
|
!dotty_state_count
|
|
!proposition_counter
|
|
| Lambda_pred (no, lev, array) ->
|
|
match array with
|
|
| false ->
|
|
F.fprintf f "style=dashed; color=blue \n state%iL%i [label=\"INTERNAL STRUCTURE %i \", style=filled, color= lightblue]\n" !dotty_state_count !lambda_counter !lambda_counter ;
|
|
F.fprintf f "state%iL%i -> state%iL%i [color=\"lightblue \" arrowhead=none] \n" !dotty_state_count !lambda_counter no lev;
|
|
| true ->
|
|
F.fprintf f "style=dashed; color=blue \n state%iL%i [label=\"INTERNAL STRUCTURE %i \", style=filled, color= lightblue]\n" !dotty_state_count !lambda_counter !lambda_counter ;
|
|
(* F.fprintf f "state%iL%i -> struct%iL%i:%s [color=\"lightblue \" arrowhead=none] \n" !dotty_state_count !lambda_counter no lev lab;*)
|
|
|
|
incr dotty_state_count
|
|
|
|
(* print a link between two noeds in the graph *)
|
|
let dotty_pp_link f link =
|
|
let n1 = link.src.id in
|
|
let lambda1 = link.src.lambda in
|
|
let n2 = link.trg.id in
|
|
let lambda2 = link.trg.lambda in
|
|
let src_fld = link.src_fld in
|
|
let trg_fld = link.trg_fld in
|
|
match n2, link.kind with
|
|
| 0, _ when !print_full_prop ->
|
|
F.fprintf f "state%iL%i -> state%iL%i[label=\"%s DANG\", color= red];\n" n1 lambda1 n2 lambda2 src_fld
|
|
| _, LinkToArray when !print_full_prop ->
|
|
F.fprintf f "state%iL%i -> struct%iL%i:%s%iL%i[label=\"\"]\n" n1 lambda1 n2 lambda2 trg_fld n2 lambda2
|
|
| _, LinkExpToStruct when !print_full_prop ->
|
|
F.fprintf f "state%iL%i -> struct%iL%i:%s%iL%i[label=\"\"]\n" n1 lambda1 n2 lambda2 trg_fld n2 lambda2
|
|
| _, LinkStructToExp when !print_full_prop ->
|
|
F.fprintf f "struct%iL%i:%s%iL%i -> state%iL%i[label=\"\"]\n"
|
|
n1 lambda1 src_fld n1 lambda1 n2 lambda2
|
|
| _, LinkRetainCycle ->
|
|
F.fprintf f "struct%iL%i:%s%iL%i -> struct%iL%i:%s%iL%i[label=\"\", color= red]\n"
|
|
n1 lambda1 src_fld n1 lambda1 n2 lambda2 trg_fld n2 lambda2
|
|
| _, LinkStructToStruct when !print_full_prop ->
|
|
F.fprintf f "struct%iL%i:%s%iL%i -> struct%iL%i:%s%iL%i[label=\"\"]\n" n1 lambda1 src_fld n1 lambda1 n2 lambda2 trg_fld n2 lambda2
|
|
| _, LinkArrayToExp when !print_full_prop ->
|
|
F.fprintf f "struct%iL%i:%s -> state%iL%i[label=\"\"]\n" n1 lambda1 src_fld n2 lambda2
|
|
| _, LinkArrayToStruct when !print_full_prop ->
|
|
F.fprintf f "struct%iL%i:%s -> struct%iL%i[label=\"\"]\n" n1 lambda1 src_fld n2 lambda2
|
|
| _, _ -> if !print_full_prop then
|
|
F.fprintf f "state%iL%i -> state%iL%i[label=\"%s\"];\n" n1 lambda1 n2 lambda2 src_fld
|
|
else ()
|
|
|
|
(* given the list of nodes and links get rid of spec nodes that are not pointed to by anybody*)
|
|
let filter_useless_spec_dollar_box (nodes: dotty_node list) (links: link list) =
|
|
let tmp_nodes = ref nodes in
|
|
let tmp_links = ref links in
|
|
let remove_links_from ln = IList.filter (fun n' -> not (IList.mem Pervasives.(=) n' ln)) !tmp_links in
|
|
let remove_node n ns =
|
|
IList.filter (fun n' -> match n' with
|
|
| Dotpointsto _ -> (get_coordinate_id n')!= (get_coordinate_id n)
|
|
| _ -> true
|
|
) ns in
|
|
let rec boxes_pointed_by n lns =
|
|
match lns with
|
|
| [] -> []
|
|
| l:: ln' -> let n_id = get_coordinate_id n in
|
|
if l.src.id = n_id && l.src_fld ="" then (
|
|
(*L.out "@\n Found link (%i,%i)" l.src.id l.trg.id;*)
|
|
l:: boxes_pointed_by n ln'
|
|
)
|
|
else boxes_pointed_by n ln' in
|
|
let rec boxes_pointing_at n lns =
|
|
match lns with
|
|
| [] -> []
|
|
| l:: ln' -> let n_id = get_coordinate_id n in
|
|
if l.trg.id = n_id && l.trg_fld ="" then (
|
|
(*L.out "@\n Found link (%i,%i)" l.src.id l.trg.id;*)
|
|
l:: boxes_pointing_at n ln' )
|
|
else boxes_pointing_at n ln' in
|
|
let is_spec_variable = function
|
|
| Exp.Var id ->
|
|
Ident.is_normal id && Ident.name_equal (Ident.get_name id) Ident.name_spec
|
|
| _ -> false in
|
|
let handle_one_node node =
|
|
match node with
|
|
| Dotpointsto _ ->
|
|
let e = get_node_exp node in
|
|
if is_spec_variable e then begin
|
|
(*L.out "@\n Found a spec expression = %s @.@." (Exp.to_string e); *)
|
|
let links_from_node = boxes_pointed_by node links in
|
|
let links_to_node = boxes_pointing_at node links in
|
|
(* L.out "@\n Size of links_from=%i links_to=%i @.@." (IList.length links_from_node) (IList.length links_to_node); *)
|
|
if links_to_node =[] then begin
|
|
tmp_links:= remove_links_from links_from_node ;
|
|
tmp_nodes:= remove_node node !tmp_nodes;
|
|
end
|
|
end
|
|
| _ -> () in
|
|
IList.iter handle_one_node nodes;
|
|
(!tmp_nodes,!tmp_links)
|
|
|
|
(* print a struct node *)
|
|
let rec print_struct f pe e te l coo c =
|
|
let print_type = match te with
|
|
| Exp.Sizeof (t, _, _) ->
|
|
let str_t = Typ.to_string t in
|
|
(match Str.split_delim (Str.regexp_string Config.anonymous_block_prefix) str_t with
|
|
| [_; _] -> "BLOCK object"
|
|
| _ -> str_t)
|
|
| _ -> Exp.to_string te in
|
|
let n = coo.id in
|
|
let lambda = coo.lambda in
|
|
let e_no_special_char = strip_special_chars (Exp.to_string e) in
|
|
F.fprintf f "subgraph structs_%iL%i {\n" n lambda ;
|
|
if !print_full_prop then
|
|
F.fprintf f
|
|
" node [shape=record]; \n struct%iL%i \
|
|
[label=\"{<%s%iL%i> STRUCT: %a } | %a\" ] fontcolor=%s\n"
|
|
n lambda e_no_special_char n lambda (Sil.pp_exp_printenv pe) e (struct_to_dotty_str pe coo) l c
|
|
else
|
|
F.fprintf f
|
|
" node [shape=record]; \n struct%iL%i \
|
|
[label=\"{<%s%iL%i> OBJECT: %s } | %a\" ] fontcolor=%s\n"
|
|
n lambda e_no_special_char n lambda print_type (struct_to_dotty_str pe coo) l c;
|
|
F.fprintf f "}\n"
|
|
|
|
and print_array f pe e1 e2 l coo c =
|
|
let n = coo.id in
|
|
let lambda = coo.lambda in
|
|
let e_no_special_char = strip_special_chars (Exp.to_string e1) in
|
|
F.fprintf f "subgraph structs_%iL%i {\n" n lambda ;
|
|
F.fprintf f " node [shape=record]; \n struct%iL%i [label=\"{<%s%iL%i> ARRAY| SIZE: %a } | %a\" ] fontcolor=%s\n" n lambda e_no_special_char n lambda (Sil.pp_exp_printenv pe) e2 (get_contents pe coo) l c;
|
|
F.fprintf f "}\n"
|
|
|
|
and print_sll f pe nesting k e1 coo =
|
|
let n = coo.id in
|
|
let lambda = coo.lambda in
|
|
let n' = !dotty_state_count in
|
|
incr dotty_state_count;
|
|
begin
|
|
match k with
|
|
| Sil.Lseg_NE -> F.fprintf f "subgraph cluster_%iL%i { style=filled; color=lightgrey; node [style=filled,color=white]; label=\"list NE\";" n' lambda (*pp_nesting nesting*)
|
|
| Sil.Lseg_PE -> F.fprintf f "subgraph cluster_%iL%i { style=filled; color=lightgrey; node [style=filled,color=white]; label=\"list PE\";" n' lambda (*pp_nesting nesting *)
|
|
end;
|
|
F.fprintf f "state%iL%i [label=\"%a\"]\n" n lambda (Sil.pp_exp_printenv pe) e1;
|
|
let n' = !dotty_state_count in
|
|
incr dotty_state_count;
|
|
F.fprintf f "state%iL%i [label=\"... \" style=filled color=lightgrey] \n" n' lambda ;
|
|
F.fprintf f "state%iL%i -> state%iL%i [label=\" \"] \n" n lambda n' lambda ;
|
|
F.fprintf f "state%iL%i [label=\" \"] \n" (n + 1) lambda ;
|
|
F.fprintf f "state%iL%i -> state%iL%i [label=\" \"] }" n' lambda (n + 1) lambda ;
|
|
incr lambda_counter;
|
|
pp_dotty f (Lambda_pred(n + 1, lambda, false))
|
|
(Prop.normalize (Tenv.create ()) (Prop.from_sigma nesting)) None
|
|
|
|
and print_dll f pe nesting k e1 e4 coo =
|
|
let n = coo.id in
|
|
let lambda = coo.lambda in
|
|
let n' = !dotty_state_count in
|
|
incr dotty_state_count;
|
|
begin
|
|
match k with
|
|
| Sil.Lseg_NE -> F.fprintf f "subgraph cluster_%iL%i { style=filled; color=lightgrey; node [style=filled,color=white]; label=\"doubly-linked list NE\";" n' lambda (*pp_nesting nesting *)
|
|
| Sil.Lseg_PE -> F.fprintf f "subgraph cluster_%iL%i { style=filled; color=lightgrey; node [style=filled,color=white]; label=\"doubly-linked list PE\";" n' lambda (*pp_nesting nesting *)
|
|
end;
|
|
F.fprintf f "state%iL%i [label=\"%a\"]\n" n lambda (Sil.pp_exp_printenv pe) e1;
|
|
let n' = !dotty_state_count in
|
|
incr dotty_state_count;
|
|
F.fprintf f "state%iL%i [label=\"... \" style=filled color=lightgrey] \n" n' lambda;
|
|
F.fprintf f "state%iL%i -> state%iL%i [label=\" \"]\n" n lambda n' lambda;
|
|
F.fprintf f "state%iL%i -> state%iL%i [label=\" \"]\n" n' lambda n lambda;
|
|
F.fprintf f "state%iL%i [label=\"%a\"]\n" (n + 1) lambda (Sil.pp_exp_printenv pe) e4;
|
|
F.fprintf f "state%iL%i -> state%iL%i [label=\" \"]\n" (n + 1) lambda n' lambda;
|
|
F.fprintf f "state%iL%i -> state%iL%i [label=\" \"]}\n" n' lambda (n + 1) lambda ;
|
|
incr lambda_counter;
|
|
pp_dotty f (Lambda_pred(n', lambda, false))
|
|
(Prop.normalize (Tenv.create ()) (Prop.from_sigma nesting)) None
|
|
|
|
and dotty_pp_state f pe cycle dotnode =
|
|
let dotty_exp coo e c is_dangling =
|
|
let n = coo.id in
|
|
let lambda = coo.lambda in
|
|
if is_dangling then
|
|
F.fprintf f "state%iL%i [label=\"%a \", color=red, style=dashed, fontcolor=%s]\n" n lambda (Sil.pp_exp_printenv pe) e c
|
|
else
|
|
F.fprintf f "state%iL%i [label=\"%a\" fontcolor=%s]\n" n lambda (Sil.pp_exp_printenv pe) e c in
|
|
match dotnode with
|
|
| Dotnil coo when !print_full_prop ->
|
|
F.fprintf f "state%iL%i [label=\"NIL \", color=green, style=filled]\n" coo.id coo.lambda
|
|
| Dotdangling(coo, e, c) when !print_full_prop -> dotty_exp coo e c true
|
|
| Dotpointsto(coo, e1, c) when !print_full_prop -> dotty_exp coo e1 c false
|
|
| Dotstruct(coo, e1, l, c,te) ->
|
|
let l' = if !print_full_prop then l
|
|
else IList.filter (fun edge -> in_cycle cycle edge) l in
|
|
print_struct f pe e1 te l' coo c
|
|
| Dotarray(coo, e1, e2, l, _, c) when !print_full_prop -> print_array f pe e1 e2 l coo c
|
|
| Dotlseg(coo, e1, _, Sil.Lseg_NE, nesting, _) when !print_full_prop ->
|
|
print_sll f pe nesting Sil.Lseg_NE e1 coo
|
|
| Dotlseg(coo, e1, _, Sil.Lseg_PE, nesting, _) when !print_full_prop ->
|
|
print_sll f pe nesting Sil.Lseg_PE e1 coo
|
|
| Dotdllseg(coo, e1, _, _, e4, Sil.Lseg_NE, nesting, _) when !print_full_prop ->
|
|
print_dll f pe nesting Sil.Lseg_NE e1 e4 coo
|
|
| Dotdllseg(coo, e1, _, _, e4, Sil.Lseg_PE, nesting, _) when !print_full_prop ->
|
|
print_dll f pe nesting Sil.Lseg_PE e1 e4 coo
|
|
| _ -> ()
|
|
|
|
(* Build the graph data structure to be printed *)
|
|
and build_visual_graph f pe p cycle =
|
|
let sigma = p.Prop.sigma in
|
|
compute_fields_struct sigma;
|
|
compute_struct_exp_nodes sigma;
|
|
(* L.out "@\n@\n Computed fields structs: ";
|
|
IList.iter (fun e -> L.out " %a " (Sil.pp_exp_printenv pe) e) !fields_structs;
|
|
L.out "@\n@.";
|
|
L.out "@\n@\n Computed exp structs nodes: ";
|
|
IList.iter (fun e -> L.out " %a " (Sil.pp_exp_printenv pe) e) !struct_exp_nodes;
|
|
L.out "@\n@."; *)
|
|
let sigma_lambda = IList.map (fun hp -> (hp,!lambda_counter)) sigma in
|
|
let nodes = (dotty_mk_node pe) sigma_lambda in
|
|
if !print_full_prop then make_dangling_boxes pe nodes sigma_lambda;
|
|
let links = dotty_mk_set_links nodes sigma_lambda p f cycle in
|
|
filter_useless_spec_dollar_box nodes links
|
|
|
|
and display_pure_info f pe prop =
|
|
let print_invisible_objects () =
|
|
for j = 1 to 4 do
|
|
F.fprintf f " inv_%i%i [style=invis]\n" !spec_counter j;
|
|
F.fprintf f " inv_%i%i%i [style=invis]\n" !spec_counter j j;
|
|
F.fprintf f " inv_%i%i%i%i [style=invis]\n" !spec_counter j j j;
|
|
done;
|
|
for j = 1 to 4 do
|
|
F.fprintf f " state_pi_%i -> inv_%i%i [style=invis]\n" !proposition_counter !spec_counter j;
|
|
F.fprintf f " inv_%i%i -> inv_%i%i%i [style=invis]\n" !spec_counter j !spec_counter j j;
|
|
F.fprintf f " inv_%i%i%i -> inv_%i%i%i%i [style=invis]\n" !spec_counter j j !spec_counter j j j;
|
|
done in
|
|
let pure = Prop.get_pure prop in
|
|
F.fprintf f "subgraph {\n";
|
|
F.fprintf f " node [shape=box]; \n state_pi_%i [label=\"STACK \\n\\n %a\" color=orange style=filled]\n" !proposition_counter (Prop.pp_pi pe) pure;
|
|
if !invisible_arrows then print_invisible_objects ();
|
|
F.fprintf f "}\n"
|
|
|
|
(** Pretty print a proposition in dotty format. *)
|
|
and pp_dotty f kind (_prop: Prop.normal Prop.t) cycle =
|
|
incr proposition_counter;
|
|
let pe, prop = match kind with
|
|
| Spec_postcondition pre ->
|
|
target_invisible_arrow_pre:=!proposition_counter;
|
|
let diff = Propgraph.compute_diff Black (Propgraph.from_prop pre) (Propgraph.from_prop _prop) in
|
|
let cmap_norm = Propgraph.diff_get_colormap false diff in
|
|
let cmap_foot = Propgraph.diff_get_colormap true diff in
|
|
let pe = { (Prop.prop_update_obj_sub pe_text pre) with pe_cmap_norm = cmap_norm; pe_cmap_foot = cmap_foot } in
|
|
(* add stack vars from pre *)
|
|
let pre_stack = fst (Prop.sigma_get_stack_nonstack true pre.Prop.sigma) in
|
|
let prop = Prop.set _prop ~sigma:(pre_stack @ _prop.Prop.sigma) in
|
|
pe, Prop.normalize (Tenv.create ()) prop
|
|
| _ ->
|
|
let pe = Prop.prop_update_obj_sub pe_text _prop in
|
|
pe, _prop in
|
|
dangling_dotboxes := [];
|
|
nil_dotboxes :=[];
|
|
set_exps_neq_zero prop.Prop.pi;
|
|
incr dotty_state_count;
|
|
F.fprintf f "\n subgraph cluster_prop_%i { color=black \n" !proposition_counter;
|
|
print_kind f kind;
|
|
if !print_stack_info then begin
|
|
display_pure_info f pe prop;
|
|
print_stack_info:= false
|
|
end;
|
|
(* F.fprintf f "\n subgraph cluster_%i { color=black \n" !dotty_state_count; *)
|
|
let (nodes, links) = build_visual_graph f pe prop cycle in
|
|
let all_nodes = (nodes @ !dangling_dotboxes @ !nil_dotboxes) in
|
|
if !print_full_prop then
|
|
IList.iter ((dotty_pp_state f pe) cycle) all_nodes
|
|
else
|
|
IList.iter (fun node ->
|
|
if node_in_cycle cycle node then (dotty_pp_state f pe) cycle node) all_nodes;
|
|
IList.iter (dotty_pp_link f) links;
|
|
(* F.fprintf f "\n } \n"; *)
|
|
F.fprintf f "\n } \n"
|
|
|
|
let pp_dotty_one_spec f pre posts =
|
|
post_counter := 0;
|
|
incr spec_counter;
|
|
incr proposition_counter;
|
|
incr dotty_state_count;
|
|
F.fprintf f "\n subgraph cluster_%i { color=blue \n" !dotty_state_count;
|
|
incr dotty_state_count;
|
|
F.fprintf f "\n state%iL0 [label=\"SPEC %i \", style=filled, color= lightblue]\n" !dotty_state_count !spec_counter;
|
|
spec_id:=!dotty_state_count;
|
|
invisible_arrows:= true;
|
|
pp_dotty f Spec_precondition pre None;
|
|
invisible_arrows:= false;
|
|
IList.iter (fun (po, _) -> incr post_counter ; pp_dotty f (Spec_postcondition pre) po None;
|
|
for j = 1 to 4 do
|
|
F.fprintf f " inv_%i%i%i%i -> state_pi_%i [style=invis]\n"
|
|
!spec_counter
|
|
j
|
|
j
|
|
j
|
|
!target_invisible_arrow_pre;
|
|
done
|
|
) posts;
|
|
F.fprintf f "\n } \n"
|
|
|
|
(* this is used to print a list of proposition when considered in a path of nodes *)
|
|
let pp_dotty_prop_list_in_path f plist prev_n curr_n =
|
|
try
|
|
incr proposition_counter;
|
|
incr dotty_state_count;
|
|
F.fprintf f "\n subgraph cluster_%i { color=blue \n" !dotty_state_count;
|
|
incr dotty_state_count;
|
|
F.fprintf f "\n state%iN [label=\"NODE %i \", style=filled, color= lightblue]\n" curr_n curr_n;
|
|
IList.iter (fun po -> incr proposition_counter ;
|
|
pp_dotty f Generic_proposition po None) plist;
|
|
if prev_n <> - 1 then F.fprintf f "\n state%iN ->state%iN\n" prev_n curr_n;
|
|
F.fprintf f "\n } \n"
|
|
with exn when SymOp.exn_not_failure exn ->
|
|
()
|
|
|
|
let pp_dotty_prop fmt (prop, cycle) =
|
|
reset_proposition_counter ();
|
|
Format.fprintf fmt "@\n@\n@\ndigraph main { \nnode [shape=box]; @\n";
|
|
Format.fprintf fmt "@\n compound = true; rankdir =LR; @\n";
|
|
pp_dotty fmt Generic_proposition prop (Some cycle);
|
|
Format.fprintf fmt "@\n}"
|
|
|
|
let dotty_prop_to_str prop cycle =
|
|
try
|
|
Some (pp_to_string (pp_dotty_prop) (prop, cycle))
|
|
with exn when SymOp.exn_not_failure exn -> None
|
|
|
|
(* create a dotty file with a single proposition *)
|
|
let dotty_prop_to_dotty_file fname prop cycle =
|
|
try
|
|
let out_dot = open_out fname in
|
|
let fmt_dot = Format.formatter_of_out_channel out_dot in
|
|
pp_dotty_prop fmt_dot (prop, cycle);
|
|
close_out out_dot
|
|
with exn when SymOp.exn_not_failure exn ->
|
|
()
|
|
|
|
(* this is used only to print a list of prop parsed with the external parser. Basically deprecated.*)
|
|
let pp_proplist_parsed2dotty_file filename plist =
|
|
try
|
|
let pp_list f plist =
|
|
reset_proposition_counter ();
|
|
F.fprintf f "\n\n\ndigraph main { \nnode [shape=box];\n";
|
|
F.fprintf f "\n compound = true; \n";
|
|
F.fprintf f "\n /* size=\"12,7\"; ratio=fill;*/ \n";
|
|
ignore (IList.map (pp_dotty f Generic_proposition) plist);
|
|
F.fprintf f "\n}" in
|
|
let outc = open_out filename in
|
|
let fmt = F.formatter_of_out_channel outc in
|
|
F.fprintf fmt "#### Dotty version: ####@.%a@.@." pp_list plist;
|
|
close_out outc
|
|
with exn when SymOp.exn_not_failure exn ->
|
|
()
|
|
|
|
(********** START of Print interprocedural cfgs in dotty format *)
|
|
(********** Print control flow graph (in dot form) for fundec to *)
|
|
(* channel. You have to compute an interprocedural cfg first *)
|
|
|
|
let pp_cfgnodename pname fmt (n : Procdesc.Node.t) =
|
|
F.fprintf fmt "\"%s_%d\"" (Procname.to_filename pname) (Procdesc.Node.get_id n :> int)
|
|
|
|
let pp_etlist fmt etl =
|
|
IList.iter (fun (id, ty) ->
|
|
Format.fprintf fmt " %a:%a" Mangled.pp id (Typ.pp_full pe_text) ty) etl
|
|
|
|
let pp_local_list fmt etl =
|
|
IList.iter (fun (id, ty) ->
|
|
Format.fprintf fmt " %a:%a" Mangled.pp id (Typ.pp_full pe_text) ty) etl
|
|
|
|
let pp_cfgnodelabel pdesc fmt (n : Procdesc.Node.t) =
|
|
let pp_label fmt n =
|
|
match Procdesc.Node.get_kind n with
|
|
| Procdesc.Node.Start_node pname ->
|
|
Format.fprintf fmt "Start %s\\nFormals: %a\\nLocals: %a"
|
|
(Procname.to_string pname)
|
|
pp_etlist (Procdesc.get_formals pdesc)
|
|
pp_local_list (Procdesc.get_locals pdesc);
|
|
if IList.length (Procdesc.get_captured pdesc) <> 0 then
|
|
Format.fprintf fmt "\\nCaptured: %a"
|
|
pp_local_list (Procdesc.get_captured pdesc)
|
|
| Procdesc.Node.Exit_node pname ->
|
|
Format.fprintf fmt "Exit %s" (Procname.to_string pname)
|
|
| Procdesc.Node.Join_node ->
|
|
Format.fprintf fmt "+"
|
|
| Procdesc.Node.Prune_node (is_true_branch, _, _) ->
|
|
Format.fprintf fmt "Prune (%b branch)" is_true_branch
|
|
| Procdesc.Node.Stmt_node s -> Format.fprintf fmt " %s" s
|
|
| Procdesc.Node.Skip_node s -> Format.fprintf fmt "Skip %s" s in
|
|
let instr_string i =
|
|
let pp f () = Sil.pp_instr pe_text f i in
|
|
let str = pp_to_string pp () in
|
|
Escape.escape_dotty str in
|
|
let pp_instrs fmt instrs =
|
|
IList.iter (fun i -> F.fprintf fmt " %s\\n " (instr_string i)) instrs in
|
|
let instrs = Procdesc.Node.get_instrs n in
|
|
F.fprintf fmt "%d: %a \\n %a" (Procdesc.Node.get_id n :> int) pp_label n pp_instrs instrs
|
|
|
|
let pp_cfgnodeshape fmt (n: Procdesc.Node.t) =
|
|
match Procdesc.Node.get_kind n with
|
|
| Procdesc.Node.Start_node _
|
|
| Procdesc.Node.Exit_node _ -> F.fprintf fmt "color=yellow style=filled"
|
|
| Procdesc.Node.Prune_node _ -> F.fprintf fmt "shape=\"invhouse\""
|
|
| Procdesc.Node.Skip_node _ -> F.fprintf fmt "color=\"gray\""
|
|
| Procdesc.Node.Stmt_node _ -> F.fprintf fmt "shape=\"box\""
|
|
| _ -> F.fprintf fmt ""
|
|
|
|
let pp_cfgnode pdesc fmt (n: Procdesc.Node.t) =
|
|
let pname = Procdesc.get_proc_name pdesc in
|
|
F.fprintf fmt "%a [label=\"%a\" %a]\n\t\n"
|
|
(pp_cfgnodename pname) n
|
|
(pp_cfgnodelabel pdesc) n
|
|
pp_cfgnodeshape n;
|
|
let print_edge n1 n2 is_exn =
|
|
let color = if is_exn then "[color=\"red\" ]" else "" in
|
|
match Procdesc.Node.get_kind n2 with
|
|
| Procdesc.Node.Exit_node _
|
|
when is_exn = true -> (* don't print exception edges to the exit node *)
|
|
()
|
|
| _ ->
|
|
F.fprintf fmt "\n\t %a -> %a %s;"
|
|
(pp_cfgnodename pname) n1
|
|
(pp_cfgnodename pname) n2
|
|
color in
|
|
IList.iter (fun n' -> print_edge n n' false) (Procdesc.Node.get_succs n);
|
|
IList.iter (fun n' -> print_edge n n' true) (Procdesc.Node.get_exn n)
|
|
|
|
(* * print control flow graph (in dot form) for fundec to channel let *)
|
|
(* print_cfg_channel (chan : out_channel) (fd : fundec) = let pnode (s: *)
|
|
(* stmt) = fprintf chan "%a@\n" d_cfgnode s in forallStmts pnode fd * *)
|
|
(* Print control flow graph (in dot form) for fundec to file let *)
|
|
(* print_cfg_filename (filename : string) (fd : fundec) = let chan = *)
|
|
(* open_out filename in begin print_cfg_channel chan fd; close_out chan; *)
|
|
(* end *)
|
|
|
|
(* Print the extra information related to the inteprocedural aspect, ie., *)
|
|
(* special node, and call / return edges *)
|
|
let print_icfg source fmt cfg =
|
|
let print_node pdesc node =
|
|
let loc = Procdesc.Node.get_loc node in
|
|
if (Config.dotty_cfg_libs || DB.source_file_equal loc.Location.file source) then
|
|
F.fprintf fmt "%a\n" (pp_cfgnode pdesc) node in
|
|
Cfg.iter_all_nodes print_node cfg
|
|
|
|
let write_icfg_dotty_to_file source cfg fname =
|
|
let chan = open_out fname in
|
|
let fmt = Format.formatter_of_out_channel chan in
|
|
(* avoid phabricator thinking this file was generated by substituting substring with %s *)
|
|
F.fprintf fmt "/* @@%s */@\ndigraph iCFG {@\n" "generated";
|
|
print_icfg source fmt cfg;
|
|
F.fprintf fmt "}\n";
|
|
close_out chan
|
|
|
|
let print_icfg_dotty source cfg =
|
|
let fname =
|
|
if Config.frontend_tests
|
|
then
|
|
(DB.source_file_to_abs_path source) ^ ".test.dot"
|
|
else
|
|
DB.filename_to_string
|
|
(DB.Results_dir.path_to_filename
|
|
(DB.Results_dir.Abs_source_dir source)
|
|
[Config.dotty_output]) in
|
|
write_icfg_dotty_to_file source cfg fname
|
|
|
|
(********** END of Printing dotty files ***********)
|
|
|
|
(** Dotty printing for specs *)
|
|
let pp_speclist_dotty f (splist: Prop.normal Specs.spec list) =
|
|
let pp_simple_saved = !Config.pp_simple in
|
|
Config.pp_simple := true;
|
|
reset_proposition_counter ();
|
|
reset_dotty_spec_counter ();
|
|
F.fprintf f "@\n@\n\ndigraph main { \nnode [shape=box]; @\n";
|
|
F.fprintf f "@\n compound = true; @\n";
|
|
(* F.fprintf f "\n size=\"12,7\"; ratio=fill; \n"; *)
|
|
IList.iter (fun s -> pp_dotty_one_spec f (Specs.Jprop.to_prop s.Specs.pre) s.Specs.posts) splist;
|
|
F.fprintf f "@\n}";
|
|
Config.pp_simple := pp_simple_saved
|
|
|
|
let pp_speclist_to_file (filename : DB.filename) spec_list =
|
|
let pp_simple_saved = !Config.pp_simple in
|
|
Config.pp_simple := true;
|
|
let outc = open_out (DB.filename_to_string (DB.filename_add_suffix filename ".dot")) in
|
|
let fmt = F.formatter_of_out_channel outc in
|
|
let () = F.fprintf fmt "#### Dotty version: ####@\n%a@\n@\n" (pp_speclist_dotty) spec_list in
|
|
close_out outc;
|
|
Config.pp_simple := pp_simple_saved
|
|
|
|
let pp_speclist_dotty_file (filename : DB.filename) spec_list =
|
|
try pp_speclist_to_file filename spec_list
|
|
with exn when SymOp.exn_not_failure exn ->
|
|
()
|
|
|
|
(**********************************************************************)
|
|
(* Code prodicing a xml version of a graph *)
|
|
(**********************************************************************)
|
|
|
|
(* each node has an unique integer identifier *)
|
|
type visual_heap_node =
|
|
| VH_dangling of int * Exp.t
|
|
| VH_pointsto of int * Exp.t * Sil.strexp * Exp.t (* VH_pointsto(id,address,content,type) *)
|
|
| VH_lseg of int * Exp.t * Exp.t * Sil.lseg_kind (*VH_lseg(id,address,content last cell, kind) *)
|
|
(*VH_dllseg(id, address, content first cell, content last cell, address last cell, kind) *)
|
|
| VH_dllseg of int * Exp.t * Exp.t * Exp.t * Exp.t * Sil.lseg_kind
|
|
|
|
(* an edge is a pair of node identifiers*)
|
|
type visual_heap_edge = {
|
|
src: int;
|
|
trg: int;
|
|
lab: string
|
|
}
|
|
|
|
let mk_visual_heap_edge s t l = { src = s; trg = t; lab = l }
|
|
|
|
(* used to generate unique identifier for all the nodes in the set of visual graphs used to *)
|
|
(* represent a proposition*)
|
|
let global_node_counter = ref 0
|
|
|
|
let working_list = ref []
|
|
|
|
let set_dangling_nodes = ref []
|
|
|
|
(* convert an exp into a string which is xml friendly, ie. special character are replaced by*)
|
|
(* the proper xml way to visualize them*)
|
|
let exp_to_xml_string e =
|
|
pp_to_string (Sil.pp_exp_printenv (pe_html Black)) e
|
|
|
|
(* convert an atom into an xml-friendly string without special characters *)
|
|
let atom_to_xml_string a =
|
|
pp_to_string (Sil.pp_atom (pe_html Black)) a
|
|
|
|
(* return the dangling node corresponding to an expression it exists or None *)
|
|
let exp_dangling_node e =
|
|
let entry_e = IList.filter (fun b -> match b with
|
|
| VH_dangling(_, e') -> Exp.equal e e' | _ -> false ) !set_dangling_nodes in
|
|
match entry_e with
|
|
|[] -> None
|
|
| VH_dangling(n, e') :: _ -> Some (VH_dangling(n, e'))
|
|
| _ -> None (* NOTE: this cannot be possible since entry_e can be composed only by VH_dangling, see def of entry_e*)
|
|
|
|
(* make nodes and when it finds a list records in the working list *)
|
|
(* to do (n, prop) where n is the integer identifier of the list node. *)
|
|
(* This allow to keep the connection between the list node and the graph *)
|
|
(* that displays its contents. *)
|
|
let rec make_visual_heap_nodes sigma =
|
|
let n = !global_node_counter in
|
|
incr global_node_counter;
|
|
match sigma with
|
|
| [] -> []
|
|
| Sil.Hpointsto (e, se, t):: sigma' ->
|
|
VH_pointsto(n, e, se, t):: make_visual_heap_nodes sigma'
|
|
| Sil.Hlseg (k, hpara, e1, e2, _):: sigma' ->
|
|
working_list:= (n, hpara.Sil.body)::!working_list;
|
|
VH_lseg(n, e1, e2, k):: make_visual_heap_nodes sigma'
|
|
| Sil.Hdllseg (k, hpara_dll, e1, e2, e3, e4, _):: sigma'->
|
|
working_list:= (n, hpara_dll.Sil.body_dll)::!working_list;
|
|
VH_dllseg(n, e1, e2, e3, e4, k):: make_visual_heap_nodes sigma'
|
|
|
|
(* given a node returns its id and address*)
|
|
let get_node_id_and_addr node =
|
|
match node with
|
|
| VH_dangling(n, e)
|
|
| VH_pointsto(n, e, _, _)
|
|
| VH_lseg(n, e, _ , _)
|
|
| VH_dllseg(n, e, _, _, _, _) -> (n, e)
|
|
|
|
(* return node's id*)
|
|
let get_node_id node = fst (get_node_id_and_addr node)
|
|
|
|
(* return node's address*)
|
|
let get_node_addr node = snd (get_node_id_and_addr node)
|
|
|
|
(* return the nodes corresponding to an address given by an expression *)
|
|
let rec select_node_at_address nodes e =
|
|
match nodes with
|
|
| [] -> None
|
|
| n:: l' ->
|
|
let e' = get_node_addr n in
|
|
if (Exp.compare e e' = 0) then Some n
|
|
else select_node_at_address l' e
|
|
|
|
(* look-up the ids in the list of nodes corresponding to expression e*)
|
|
(* let look_up_nodes_ids nodes e =
|
|
IList.map get_node_id (select_nodes_exp nodes e) *)
|
|
|
|
(* create a list of dangling nodes *)
|
|
let make_set_dangling_nodes allocated_nodes (sigma: Sil.hpred list) =
|
|
let make_new_dangling e =
|
|
let n = !global_node_counter in
|
|
incr global_node_counter;
|
|
VH_dangling(n, e) in
|
|
let get_rhs_predicate hpred =
|
|
(match hpred with
|
|
| Sil.Hpointsto (_, Sil.Eexp (e, _), _) when not (Exp.equal e Exp.zero) -> [e]
|
|
| Sil.Hlseg (_, _, _, e2, _) when not (Exp.equal e2 Exp.zero) -> [e2]
|
|
| Sil.Hdllseg (_, _, _, e2, e3, _, _) ->
|
|
if (Exp.equal e2 Exp.zero) then
|
|
if (Exp.equal e3 Exp.zero) then []
|
|
else [e3]
|
|
else [e2; e3]
|
|
| Sil.Hpointsto (_, _, _)
|
|
| _ -> [] (* arrays and struct do not give danglings. CHECK THIS!*)
|
|
) in
|
|
let is_not_allocated e =
|
|
let allocated = IList.exists (fun a -> match a with
|
|
| VH_pointsto(_, e', _, _)
|
|
| VH_lseg(_, e', _ , _)
|
|
| VH_dllseg(_, e', _, _, _, _) -> Exp.equal e e'
|
|
| _ -> false ) allocated_nodes in
|
|
not allocated in
|
|
let rec filter_duplicate l seen_exp =
|
|
match l with
|
|
| [] -> []
|
|
| e:: l' ->
|
|
if (IList.exists (Exp.equal e) seen_exp) then filter_duplicate l' seen_exp
|
|
else e:: filter_duplicate l' (e:: seen_exp) in
|
|
let rhs_exp_list = IList.flatten (IList.map get_rhs_predicate sigma) in
|
|
let candidate_dangling_exps = filter_duplicate rhs_exp_list [] in
|
|
(* get rid of allocated ones*)
|
|
let dangling_exps = IList.filter is_not_allocated candidate_dangling_exps in
|
|
IList.map make_new_dangling dangling_exps
|
|
|
|
(* return a list of pairs (n,field_lab) where n is a target node*)
|
|
(* corresponding to se and is going to be used a target for and edge*)
|
|
(* field_lab is the name of the field which points to n (if any)*)
|
|
let rec compute_target_nodes_from_sexp nodes se prop field_lab =
|
|
match se with
|
|
| Sil.Eexp (e, _) when is_nil e prop ->
|
|
(* Nil is not represented by a node, it's just a value which should be printed*)
|
|
[]
|
|
| Sil.Eexp (e, _) ->
|
|
let e_node = select_node_at_address nodes e in
|
|
(match e_node with
|
|
| None ->
|
|
(match exp_dangling_node e with
|
|
| None -> []
|
|
| Some dang_node -> [(dang_node, field_lab)]
|
|
)
|
|
| Some n -> [(n, field_lab)]
|
|
)
|
|
| Sil.Estruct (lfld, inst) ->
|
|
(match lfld with
|
|
| [] -> []
|
|
| (fn, se2):: l' ->
|
|
compute_target_nodes_from_sexp nodes se2 prop (Ident.fieldname_to_string fn) @
|
|
compute_target_nodes_from_sexp nodes (Sil.Estruct (l', inst)) prop ""
|
|
)
|
|
| Sil.Earray (len, lie, inst) ->
|
|
(match lie with
|
|
| [] -> []
|
|
| (idx, se2):: l' ->
|
|
let lab ="["^exp_to_xml_string idx^"]" in
|
|
compute_target_nodes_from_sexp nodes se2 prop lab @
|
|
compute_target_nodes_from_sexp nodes (Sil.Earray (len, l', inst)) prop ""
|
|
)
|
|
|
|
|
|
(* build the set of edges between nodes *)
|
|
let rec make_visual_heap_edges nodes sigma prop =
|
|
let combine_source_target_label n (m, lab) =
|
|
mk_visual_heap_edge (get_node_id n) (get_node_id m) lab in
|
|
match sigma with
|
|
| [] -> []
|
|
| Sil.Hpointsto (e, se, _):: sigma' ->
|
|
let e_node = select_node_at_address nodes e in
|
|
(match e_node with
|
|
| None -> assert false
|
|
| Some n ->
|
|
let target_nodes = compute_target_nodes_from_sexp nodes se prop "" in
|
|
let ll = IList.map (combine_source_target_label n) target_nodes in
|
|
ll @ make_visual_heap_edges nodes sigma' prop
|
|
)
|
|
| Sil.Hlseg (_, _, e1, e2, _):: sigma' ->
|
|
let e1_node = select_node_at_address nodes e1 in
|
|
(match e1_node with
|
|
| None -> assert false
|
|
| Some n ->
|
|
let target_nodes = compute_target_nodes_from_sexp nodes (Sil.Eexp (e2, Sil.inst_none)) prop "" in
|
|
let ll = IList.map (combine_source_target_label n) target_nodes in
|
|
ll @ make_visual_heap_edges nodes sigma' prop
|
|
)
|
|
|
|
| Sil.Hdllseg (_, _, e1, e2, e3, _, _):: sigma' ->
|
|
let e1_node = select_node_at_address nodes e1 in
|
|
(match e1_node with
|
|
| None -> assert false
|
|
| Some n ->
|
|
let target_nodesF = compute_target_nodes_from_sexp nodes (Sil.Eexp (e3, Sil.inst_none)) prop "" in
|
|
let target_nodesB = compute_target_nodes_from_sexp nodes (Sil.Eexp (e2, Sil.inst_none)) prop "" in
|
|
let llF = IList.map (combine_source_target_label n) target_nodesF in
|
|
let llB = IList.map (combine_source_target_label n) target_nodesB in
|
|
llF @ llB @ make_visual_heap_edges nodes sigma' prop
|
|
)
|
|
|
|
(* from a prop generate and return visual proposition *)
|
|
let prop_to_set_of_visual_heaps prop =
|
|
let result = ref [] in
|
|
working_list := [(!global_node_counter, prop.Prop.sigma)];
|
|
incr global_node_counter;
|
|
while (!working_list!=[]) do
|
|
set_dangling_nodes:=[];
|
|
let (n, h) = IList.hd !working_list in
|
|
working_list:= IList.tl !working_list;
|
|
let nodes = make_visual_heap_nodes h in
|
|
set_dangling_nodes:= make_set_dangling_nodes nodes h;
|
|
let edges = make_visual_heap_edges nodes h prop in
|
|
result:= !result @ [(n, nodes @ !set_dangling_nodes, edges)];
|
|
done;
|
|
!result
|
|
|
|
let rec pointsto_contents_to_xml (co: Sil.strexp) : Io_infer.Xml.node =
|
|
match co with
|
|
| Sil.Eexp (e, _) ->
|
|
Io_infer.Xml.create_tree "cell" [("content-value", exp_to_xml_string e)] []
|
|
| Sil.Estruct (fel, _) ->
|
|
let f (fld, exp) = Io_infer.Xml.create_tree "struct-field" [("id", Ident.fieldname_to_string fld)] [(pointsto_contents_to_xml exp)] in
|
|
Io_infer.Xml.create_tree "struct" [] (IList.map f fel)
|
|
| Sil.Earray (len, nel, _) ->
|
|
let f (e, se) = Io_infer.Xml.create_tree "array-element" [("index", exp_to_xml_string e)] [pointsto_contents_to_xml se] in
|
|
Io_infer.Xml.create_tree "array" [("size", exp_to_xml_string len)] (IList.map f nel)
|
|
|
|
(* Convert an atom to xml in a light version. Namely, the expressions are not fully blown-up into *)
|
|
(* xml tree but visualized as strings *)
|
|
let atom_to_xml_light (a: Sil.atom) : Io_infer.Xml.node =
|
|
let kind_info = match a with
|
|
| Sil.Aeq _ when Prop.atom_is_inequality a ->
|
|
"inequality"
|
|
| Sil.Aeq _ ->
|
|
"equality"
|
|
| Sil.Aneq _ ->
|
|
"disequality"
|
|
| Sil.Apred _ ->
|
|
"pred"
|
|
| Sil.Anpred _ ->
|
|
"npred" in
|
|
Io_infer.Xml.create_tree "stack-variable" [("type", kind_info); ("instance", atom_to_xml_string a)] []
|
|
|
|
let xml_pure_info prop =
|
|
let pure = Prop.get_pure prop in
|
|
let xml_atom_list = IList.map atom_to_xml_light pure in
|
|
Io_infer.Xml.create_tree "stack" [] xml_atom_list
|
|
|
|
(** Return a string describing the kind of a pointsto address *)
|
|
let pointsto_addr_kind = function
|
|
| Exp.Lvar pv ->
|
|
if Pvar.is_global pv
|
|
then "global"
|
|
else if Pvar.is_local pv && Mangled.equal (Pvar.get_name pv) Ident.name_return
|
|
then "return"
|
|
else if Pvar.is_local pv
|
|
then "parameter"
|
|
else "other"
|
|
| _ -> "other"
|
|
|
|
let heap_node_to_xml node =
|
|
match node with
|
|
| VH_dangling(id, addr) ->
|
|
let atts =[("id", string_of_int id); ("address", exp_to_xml_string addr); ("node-type","dangling"); ("memory-type", pointsto_addr_kind addr)] in
|
|
Io_infer.Xml.create_tree "node" atts []
|
|
| VH_pointsto(id, addr, cont, _) ->
|
|
let atts =[("id", string_of_int id); ("address", exp_to_xml_string addr); ("node-type","allocated"); ("memory-type", pointsto_addr_kind addr)] in
|
|
let contents = pointsto_contents_to_xml cont in
|
|
Io_infer.Xml.create_tree "node" atts [contents]
|
|
| VH_lseg(id, addr, _, Sil.Lseg_NE) ->
|
|
let atts =[("id", string_of_int id); ("address", exp_to_xml_string addr); ("node-type","single linked list"); ("list-type","non-empty"); ("memory-type", "other")] in
|
|
Io_infer.Xml.create_tree "node" atts []
|
|
| VH_lseg(id, addr, _, Sil.Lseg_PE) ->
|
|
let atts =[("id", string_of_int id); ("address", exp_to_xml_string addr); ("node-type","single linked list"); ("list-type","possibly empty"); ("memory-type", "other")] in
|
|
Io_infer.Xml.create_tree "node" atts []
|
|
| VH_dllseg(id, addr1, cont1, cont2, addr2, _) ->
|
|
let contents1 = pointsto_contents_to_xml (Sil.Eexp (cont1, Sil.inst_none)) in
|
|
let contents2 = pointsto_contents_to_xml (Sil.Eexp (cont2, Sil.inst_none)) in
|
|
let atts =[("id", string_of_int id); ("addr-first", exp_to_xml_string addr1); ("addr-last", exp_to_xml_string addr2); ("node-type","double linked list"); ("memory-type", "other") ] in
|
|
Io_infer.Xml.create_tree "node" atts [contents1 ; contents2]
|
|
|
|
let heap_edge_to_xml edge =
|
|
let atts =[("source", string_of_int edge.src); ("target", string_of_int edge.trg); ("label", edge.lab) ] in
|
|
Io_infer.Xml.create_tree "edge" atts []
|
|
|
|
let visual_heap_to_xml heap =
|
|
let (n, nodes, edges) = heap in
|
|
let xml_heap_nodes = IList.map heap_node_to_xml nodes in
|
|
let xml_heap_edges = IList.map heap_edge_to_xml edges in
|
|
Io_infer.Xml.create_tree "heap" [("id", string_of_int n)] (xml_heap_nodes @ xml_heap_edges)
|
|
|
|
(** convert a proposition to xml with the given tag and id *)
|
|
let prop_to_xml prop tag_name id =
|
|
let visual_heaps = prop_to_set_of_visual_heaps prop in
|
|
let xml_visual_heaps = IList.map visual_heap_to_xml visual_heaps in
|
|
let xml_pure_part = xml_pure_info prop in
|
|
let xml_graph = Io_infer.Xml.create_tree tag_name [("id", string_of_int id)] (xml_visual_heaps @ [xml_pure_part]) in
|
|
xml_graph
|
|
|
|
(** reset the counter used for node and heap identifiers *)
|
|
let reset_node_counter () =
|
|
global_node_counter := 0
|
|
|
|
let print_specs_xml signature specs loc fmt =
|
|
reset_node_counter ();
|
|
let do_one_spec pre posts n =
|
|
let add_stack_to_prop _prop =
|
|
(* add stack vars from pre *)
|
|
let pre_stack = fst (Prop.sigma_get_stack_nonstack true pre.Prop.sigma) in
|
|
let _prop' = Prop.set _prop ~sigma:(pre_stack @ _prop.Prop.sigma) in
|
|
Prop.normalize (Tenv.create ()) _prop' in
|
|
let jj = ref 0 in
|
|
let xml_pre = prop_to_xml pre "precondition" !jj in
|
|
let xml_spec =
|
|
xml_pre ::
|
|
(IList.map (fun (po, _) ->
|
|
jj := !jj + 1; prop_to_xml (add_stack_to_prop po) "postcondition" !jj
|
|
) posts) in
|
|
Io_infer.Xml.create_tree "specification" [("id", string_of_int n)] xml_spec in
|
|
let j = ref 0 in
|
|
let list_of_specs_xml =
|
|
IList.map
|
|
(fun s ->
|
|
j:=!j + 1;
|
|
do_one_spec (Specs.Jprop.to_prop s.Specs.pre) s.Specs.posts !j)
|
|
specs in
|
|
let xml_specifications = Io_infer.Xml.create_tree "specifications" [] list_of_specs_xml in
|
|
let xml_signature = Io_infer.Xml.create_tree "signature" [("name", signature)] [] in
|
|
let proc_summary = Io_infer.Xml.create_tree "procedure"
|
|
[("file", DB.source_file_to_string loc.Location.file);
|
|
("line", string_of_int loc.Location.line)]
|
|
[xml_signature; xml_specifications] in
|
|
Io_infer.Xml.pp_document true fmt proc_summary
|
|
|
|
(*
|
|
let exp_is_neq_zero e =
|
|
IList.exists (fun e' -> Exp.equal e e') !exps_neq_zero
|
|
|
|
let rec get_contents_range_single pe coo f range_se =
|
|
let (e1, e2), se = range_se in
|
|
let e1_no_special_char = strip_special_chars (Exp.to_string e1) in
|
|
F.fprintf f "{ <%s> [%a,%a] : %a }"
|
|
e1_no_special_char (Sil.pp_exp_printenv pe) e1 (Sil.pp_exp_printenv pe) e2 (get_contents_sexp pe coo) se
|
|
|
|
and get_contents_range pe coo f = function
|
|
| [] -> ()
|
|
| [range_se] ->
|
|
F.fprintf f "%a" (get_contents_range_single pe coo) range_se
|
|
| range_se:: l ->
|
|
F.fprintf f "%a | %a"
|
|
(get_contents_range_single pe coo) range_se (get_contents_range pe coo) l
|
|
|
|
let pp_nesting fmt nesting =
|
|
if nesting > 1 then F.fprintf fmt "%d" nesting
|
|
|
|
let max_map f l =
|
|
let curr_max = ref 0 in
|
|
IList.iter (fun x -> curr_max := max !curr_max (f x)) l;
|
|
! curr_max
|
|
|
|
let rec sigma_nesting_level sigma =
|
|
max_map (function
|
|
| Sil.Hpointsto _ -> 0
|
|
| Sil.Hlseg (_, hpara, _, _, _) -> hpara_nesting_level hpara
|
|
| Sil.Hdllseg (_, hpara_dll, _, _, _, _, _) -> hpara_dll_nesting_level hpara_dll) sigma
|
|
|
|
and hpara_nesting_level hpara =
|
|
1 + sigma_nesting_level hpara.Sil.body
|
|
|
|
and hpara_dll_nesting_level hpara_dll =
|
|
1 + sigma_nesting_level hpara_dll.Sil.body_dll
|
|
|
|
let rec get_color_exp dot_nodes e =
|
|
match dot_nodes with
|
|
| [] ->""
|
|
| Dotnil(_):: l' -> get_color_exp l' e
|
|
| Dotpointsto(_, e', c):: l'
|
|
| Dotdangling(_, e', c):: l'
|
|
| Dotarray(_, _, e', _, _, c):: l'
|
|
| Dotlseg(_, e', _, _, _, c):: l'
|
|
| Dotstruct(_, e', _, c, _):: l'
|
|
| Dotdllseg(_, e', _, _, _, _, _, c):: l' ->
|
|
if (Exp.equal e e') then c else get_color_exp l' e
|
|
*)
|