| # apebs = # wlar, vols[v][vtblpnum3] = ⌜n4⌝ , avols0[v][vtblpnum3] = mapped(buf2, m), wlar[n4] = wl-entry(m1, used), apebs[n4] = mkpeb(aehdr, avhdr, buf2, m0, false), vtblpnum4 ≠ n4, aehdr.valid?, avhdr.valid?, n < n0, vtblpnum3 < # vols[v], n4 < # wlar, vtblpnum3 < # avols0[v], abs(avols0, apebs, vols, q), abs(avols0, apebs0, vols0, q0), bflipset-cons(bflipset, wlar), ebm-cons(avols0), is-aligned(n, EB_PAGE_SIZE), is-aligned(vtblpnum5, EB_PAGE_SIZE), is-aligned(n0, EB_PAGE_SIZE), ubi-io-inv(apebs), ubi-io-peb-inv(mkpeb(aehdr, avhdr, buf2, m0, false)), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum4), valid-eraseq(q), valid-eraseq(wlar, q), valid-eraseq(apebs, q), valid-global-sqn(apebs, sqnum), valid-vtbl(apebs, vols, wlar, vtblpnum4), valid-wl(apebs, wlar), v ∈ vols, v ∈ avols0, n3 + n0 ≤ # buf0, m ≤ LEB_SIZE, m0 ≤ LEB_SIZE, n0 + n3 ≤ # buf0, m ≤ vtblpnum5, m0 ≤ vtblpnum5, vtblpnum5 + n0 ≤ LEB_SIZE, vtblpnum5 ≤ LEB_SIZE, ⌊err3⌋ , ⌊err2⌋ , ¬ VTBL_VOLID ∈ vols ⊦ ⟨skip⟩ true |