| # apebs = # wlar, wlar[m] = wl-entry(m0, used), vols[v][vtblpnum4] = ⌜m⌝ , buf0 = buf, vtblpnum = vtblpnum3, vtblpnum0 = m, vtblpnum4 < # vols[v], m < # wlar, bflipset-cons(bflipset, wlar), ubi-io-inv(apebs), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum5), valid-eraseq(apebs, q), valid-eraseq(wlar, q), valid-eraseq(q), valid-global-sqn(apebs, sqnum), valid-peb(v, vtblpnum4, apebs[m]), valid-vtbl(apebs, vols, wlar, vtblpnum5), valid-wl(apebs, wlar), v ∈ vols, n0 + n ≤ # buf, vtblpnum3 + n ≤ LEB_SIZE ⊦ ⟪abort; if err = ESUCCESS ∧ bitflips then bflipset := bflipset ++ m⟫ bflipset-cons(bflipset, wlar), m = vtblpnum5, ubi-io-read-data-pre(vtblpnum0, vtblpnum, n0, n, buf0, apebs), m ∈ q, vtblpnum5 ∈ q, VTBL_VOLID ∈ vols |
# apebs = # wlar, vols[v][vtblpnum4] = ⌜m⌝ , wlar[m] = wl-entry(m0, used), buf0 = buf, vtblpnum = vtblpnum3, vtblpnum0 = m, m < # wlar, vtblpnum4 < # vols[v], bflipset-cons(bflipset, wlar), ubi-io-inv(apebs), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum5), valid-eraseq(q), valid-eraseq(wlar, q), valid-eraseq(apebs, q), valid-global-sqn(apebs, sqnum), valid-peb(v, vtblpnum4, apebs[m]), valid-vtbl(apebs, vols, wlar, vtblpnum5), valid-wl(apebs, wlar), v ∈ vols, vtblpnum3 + n ≤ LEB_SIZE, n0 + n ≤ # buf ⊦ m = vtblpnum5, ubi-io-read-data-pre(vtblpnum0, vtblpnum, n0, n, buf0, apebs), VTBL_VOLID ∈ vols, vtblpnum5 ∈ q, m ∈ q