From 8bed4e4ef414f93e02f28f0e5eb223a855ba3d14 Mon Sep 17 00:00:00 2001
From: Brian Campbell
Date: Fri, 17 May 2019 17:59:03 +0100
Subject: Add constraints to undefined vector functions to ensure that lengths
 are sane, and an incomplete check on undefined literals.

---
 src/initial_check.ml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/initial_check.ml')

diff --git a/src/initial_check.ml b/src/initial_check.ml
index 522faab7..3f5592ba 100644
--- a/src/initial_check.ml
+++ b/src/initial_check.ml
@@ -923,9 +923,9 @@ let undefined_builtin_val_specs =
    extern_of_string (mk_id "undefined_string") "unit -> string effect {undef}";
    extern_of_string (mk_id "undefined_list") "forall ('a:Type). 'a -> list('a) effect {undef}";
    extern_of_string (mk_id "undefined_range") "forall 'n 'm. (atom('n), atom('m)) -> range('n,'m) effect {undef}";
-   extern_of_string (mk_id "undefined_vector") "forall 'n ('a:Type) ('ord : Order). (atom('n), 'a) -> vector('n, 'ord,'a) effect {undef}";
-   (* Only used with lem_mwords *)
-   extern_of_string (mk_id "undefined_bitvector") "forall 'n. atom('n) -> vector('n, dec, bit) effect {undef}";
+   extern_of_string (mk_id "undefined_vector") "forall 'n ('a:Type) ('ord : Order), 'n >= 0. (atom('n), 'a) -> vector('n, 'ord,'a) effect {undef}";
+   (* Only used with lem_mwords or coq *)
+   extern_of_string (mk_id "undefined_bitvector") "forall 'n, 'n >= 0. atom('n) -> vector('n, dec, bit) effect {undef}";
    extern_of_string (mk_id "undefined_unit") "unit -> unit effect {undef}"]
 
 let generate_undefineds vs_ids (Defs defs) =
-- 
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