Lemma HMAC256_DRBG_generate_functionWF f a b c s v k rc d pr n e l V K RC z PR ss bytes
(A: 0<= a+1 < Int.max_signed) (N: n>=0) (Rc: 0<=rc)
(F: forall s d z b x y zz A B C D ss, ENTROPY.success (A, B, zz, C, D) ss = f s (d, z, b) x y -> 0<=zz)
(H : ENTROPY.success (bytes, (V, K, RC, z, PR)) ss =
HMAC256_DRBG_functional_prog.HMAC256_DRBG_generate_function f a b c s (v, k, rc, d, pr) n e pr l):
Zlength V = 32 /\ 0 <= RC < Int.max_signed.