Lemma assert_safe_step_nostore:
forall {cs: compspecs} Espec psi f vx vx2 tx tx2 c1 k1 c2 k2 Delta e rho,
(forall jm jm', age1 jm = Some jm' ->
app_pred (tc_expr Delta e rho) (m_phi jm) ->
cl_step psi (State f c1 k1 vx tx)
(m_dry jm) (State f c2 k2 vx2 tx2) (m_dry jm)) ->
assert_safe Espec psi f vx2 tx2 (Cont (Kseq c2 k2)) (construct_rho (filter_genv psi) vx2 tx2)
&& tc_expr Delta e rho
|-- assert_safe Espec psi f vx tx (Cont (Kseq c1 k1)) (construct_rho (filter_genv psi) vx tx).