Revert that. We have two different domain kinds for enums, that's all.

1 files changed, 67 insertions, 65 deletions

diff --git a/abstract/abs_interp.ml b/abstract/abs_interp.ml
index 10bd33f..cb5ae9c 100644
--- a/abstract/abs_interp.ml
+++ b/abstract/abs_interp.ml
@@ -7,11 +7,10 @@ open Cmdline
 open Util
 open Num_domain
 open Enum_domain
-open Enum_domain_edd
 
 
 
-module I (ED : ENUM_ENVIRONMENT_DOMAIN2) (ND : NUMERICAL_ENVIRONMENT_DOMAIN) : sig
+module I (ED : ENUM_ENVIRONMENT_DOMAIN) (ND : NUMERICAL_ENVIRONMENT_DOMAIN) : sig
 
     type st
 
@@ -57,22 +56,21 @@ end = struct
       dd_add_case : dd_v -> case_v -> unit
     *)
     let dd_add_case env (enum, num) =
-      if not (ED.is_bot enum || ND.is_bot num) then
-        let rec aux enum vals = function
-          | [] ->
-            let case = List.rev vals in
-            begin try let e0, n0 = Hashtbl.find env.data case in
-              Hashtbl.replace env.data case (ED.join enum e0, ND.join num n0);
-            with Not_found ->
-              Hashtbl.add env.data case (enum, num);
-            end
-          | p::q ->
-            List.iter
-              (fun v -> let en = ED.apply_cons enum (E_EQ, p, EItem v) in 
-                assert (not (ED.is_bot en));
-                aux en (v::vals) q)
-              (ED.project enum p)
-        in aux enum [] env.d_vars
+      let rec aux enum vals = function
+        | [] ->
+          let case = List.rev vals in
+          begin try let e0, n0 = Hashtbl.find env.data case in
+            Hashtbl.replace env.data case (ED.join enum e0, ND.join num n0);
+          with Not_found ->
+            Hashtbl.add env.data case (enum, num);
+          end
+        | p::q ->
+          List.iter
+            (fun v -> match ED.apply_cons enum (E_EQ, p, EItem v) with
+              | [en] -> aux en (v::vals) q
+              | _ -> assert false)
+            (ED.project enum p)
+      in aux enum [] env.d_vars
 
     (*
       dd_singleton : id list -> case_v -> dd_v
@@ -103,12 +101,14 @@ end = struct
         vv
 
     (*
-      dd_apply_ecl : dd_v -> enum_cons list -> dd_v
+      dd_apply_econs : dd_v -> enum_cons -> dd_v
     *)
-    let dd_apply_ecl v cons =
+    let dd_apply_econs v cons =
         let vv = dd_bot v.d_vars in
         Hashtbl.iter (fun case (enum, num) ->
-            dd_add_case vv (ED.apply_cl enum cons, num))
+            List.iter
+              (fun enum -> dd_add_case vv (enum, num))
+              (ED.apply_cons enum cons))
           v.data;
         vv
 
@@ -133,7 +133,7 @@ end = struct
             try let e2, n2 = Hashtbl.find b.data case in
               let en, nn = ED.meet enum e2, ND.meet n2 num in
               if not (ND.is_bot nn) then Hashtbl.add vv.data case (en, nn)
-            with Not_found -> ())
+            with _ -> ())
           a.data;
         vv
 
@@ -143,8 +143,10 @@ end = struct
     let rec apply_cl env (ec, nc, r) =
         match r with
         | CLTrue ->
-          let env_ec = dd_apply_ecl env ec in
+          let env_ec = List.fold_left dd_apply_econs env ec in
           let env_nc = dd_apply_ncl env_ec nc in
+          (* Format.printf "[[ %a -> %a ]]@."
+              print_dd env print_dd env_nc; *)
           env_nc
         | CLFalse -> dd_bot env.d_vars
         | CLAnd(a, b) ->
@@ -192,34 +194,33 @@ end = struct
       add_case : st -> case_v -> unit
     *)
     let add_case st (enum, num) =
-      if not (ED.is_bot enum || ND.is_bot num) then
-        let rec aux enum vals = function
-          | [] ->
-            let case = List.rev vals in
-            begin try let e0, n0 = Hashtbl.find st.env case in
-              if (not (ED.subset enum e0)) || (not (ND.subset num n0)) then begin
-                begin try
-                  let n = Hashtbl.find st.widen case in
-                  let jw = if n < st.opt.widen_delay then ND.join else ND.widen in
-                  Hashtbl.replace st.env case (ED.join e0 enum, jw n0 num);
-                  Hashtbl.replace st.widen case (n+1);
-                with Not_found ->
-                  Hashtbl.replace st.env case (ED.join enum e0, ND.join num n0);
-                  Hashtbl.add st.widen case 0;
-                end;
-                if not (List.mem case st.delta) then st.delta <- case::st.delta
-              end
-            with Not_found ->
-              Hashtbl.add st.env case (enum, num);
+      let rec aux enum vals = function
+        | [] ->
+          let case = List.rev vals in
+          begin try let e0, n0 = Hashtbl.find st.env case in
+            if (not (ED.subset enum e0)) || (not (ND.subset num n0)) then begin
+              begin try
+                let n = Hashtbl.find st.widen case in
+                let jw = if n < st.opt.widen_delay then ND.join else ND.widen in
+                Hashtbl.replace st.env case (ED.join e0 enum, jw n0 num);
+                Hashtbl.replace st.widen case (n+1);
+              with Not_found ->
+                Hashtbl.replace st.env case (ED.join enum e0, ND.join num n0);
+                Hashtbl.add st.widen case 0;
+              end;
               if not (List.mem case st.delta) then st.delta <- case::st.delta
             end
-          | p::q ->
-            List.iter
-              (fun v -> let en = ED.apply_cons enum (E_EQ, p, EItem v) in
-                assert (not (ED.is_bot en));
-                aux en (v::vals) q)
-              (ED.project enum p)
-        in aux enum [] st.acc_d_vars
+          with Not_found ->
+            Hashtbl.add st.env case (enum, num);
+            if not (List.mem case st.delta) then st.delta <- case::st.delta
+          end
+        | p::q ->
+          List.iter
+            (fun v -> match ED.apply_cons enum (E_EQ, p, EItem v) with
+              | [en] -> aux en (v::vals) q
+              | _ -> assert false)
+            (ED.project enum p)
+      in aux enum [] st.acc_d_vars
 
   
     (*
@@ -228,8 +229,10 @@ end = struct
     let rec apply_cl_get_all_cases (enum, num) (ec, nc, r) =
         match r with
         | CLTrue ->
-          let enum = ED.apply_cl enum ec in
-          let enums = if ED.is_bot enum then [] else [enum] in
+          let enums = List.fold_left
+            (fun enums ec -> List.flatten
+              (List.map (fun e -> ED.apply_cons e ec) enums))
+            [enum] ec in
           let num = ND.apply_cl num nc in
           List.map (fun ec -> ec, num) enums
         | CLFalse -> []
@@ -254,12 +257,13 @@ end = struct
         let enum = ED.assign enum assign_e in
         let num = ND.assign num assign_n in
 
-        let ef, nf = List.fold_left
-            (fun (ef, nf) (var, t) -> match t with
-              | TEnum _ -> var::ef, nf
-              | TReal | TInt -> ef, var::nf)
-            ([], []) st.forget in
-        ED.forgetvars enum ef, List.fold_left ND.forgetvar num nf
+        List.fold_left
+            (fun (enum, num) (var, t) ->
+              let e, n = match t with
+              | TEnum _ -> ED.forgetvar enum var, num
+              | TReal | TInt -> enum, ND.forgetvar num var
+              in e, n)
+            (enum, num) st.forget
 
     let dd_pass_cycle st (v : dd_v) =
       let vv = dd_bot st.acc_d_vars in
@@ -359,14 +363,12 @@ end = struct
       set_target_case : st -> dd_v -> case -> dd_v
     *)
     let set_target_case st env case =
-      let cl =
-        List.fold_left2
-          (fun cl id v ->
-            if List.exists (fun (id2, _) -> id2 = "L"^id) st.enum_vars then
-              (E_EQ, id, EItem v)::cl
-            else cl)
-        [] st.acc_d_vars case
-      in dd_apply_ecl env cl
+      List.fold_left2
+        (fun env id v ->
+          if List.exists (fun (id2, _) -> id2 = "L"^id) st.enum_vars then
+            dd_apply_econs env (E_EQ, id, EItem v)
+          else env)
+        env st.acc_d_vars case
 
     (*
       do_prog : rooted_prog -> unit