Proof (proj1 (proj2 (proj2 bigstep_to_steps))).

(* Specifications: *)
Lemma exec_stmt_to_steps:
forall e m s t m' out,
exec_stmt e m s t m' out ->
forall f k,
exists S,
star step ge (State f s k e m) t S /\ outcome_state_match e m' f k out S.
Lemma exec_stmt_to_steps:
forall e m s t m' out,
exec_stmt e m s t m' out ->
forall f k,
exists S,
star step ge (State f s k e m) t S /\ outcome_state_match e m' f k out S.