Simplify

src/cdomains/apron/affineEqualityDomain.apron.ml

@@ -680,19 +680,15 @@ struct
 
   let invariant t =
     let invariant m =
-      let earray = Lincons1.array_make t.env (Matrix.num_rows m) in
-      for i = 0 to (Lincons1.array_length earray -1) do
+      let one_constraint i =
         let row = Matrix.get_row m i in
         let coeff_vars = List.map (fun x ->  Coeff.s_of_mpqf @@ Vector.nth row (Environment.dim_of_var t.env x), x) (vars t) in
         let cst = Coeff.s_of_mpqf @@ Vector.nth row (Vector.length row - 1) in
-        Lincons1.set_list (Lincons1.array_get earray i) coeff_vars (Some cst)
-      done;
-      let {lincons0_array; array_env}: Lincons1.earray = earray in
-      Array.enum lincons0_array
-      |> Enum.map (fun (lincons0: Lincons0.t) ->
-          Lincons1.{lincons0; env = array_env}
-        )
-      |> List.of_enum
+        let e1 = Linexpr1.make t.env in
+        Linexpr1.set_list e1 coeff_vars (Some cst);
+        Lincons1.make e1 EQ
+      in
+      List.init (Matrix.num_rows m) (one_constraint)
     in
     BatOption.map_default invariant [] t.d