Local Open Scope pred.
(* Scall *)
Fixpoint alloc_juicy_variables (ge: genv) (rho: env) (jm: juicy_mem) (vl: list (ident*type)) : env * juicy_mem :=
match vl with
| nil => (rho,jm)
| (id,ty)::vars => match JuicyMemOps.juicy_mem_alloc jm 0 (@sizeof ge ty) with
(m1,b1) => alloc_juicy_variables ge (PTree.set id (b1,ty) rho) m1 vars
end
end.

Lemma alloc_juicy_variables_match_venv:
forall ge jm vl ve' jm',
alloc_juicy_variables ge empty_env jm vl = (ve',jm') ->
match_venv (make_venv ve') vl.