| apebs[n2] = mkpeb(aehdr, avhdr, buf0, 0, false), n1 = align↑(datasize(buf, n1), EB_PAGE_SIZE), aehdr.valid?, avhdr.valid?, n2 < # apebs, ubi-io-inv(apebs), n1 ≤ LEB_SIZE, n1 ≤ # buf ⊦ datasize(buf, n1) = 0, # apebs = # apebs ∧ (∀ m. m < # apebs → apebs[m] = (n2 = m ⊃ mkpeb(aehdr, avhdr, mkempbuf(LEB_SIZE), 0, false);apebs[m])) |
apebs[n2] = mkpeb(aehdr, avhdr, buf0, 0, false), n1 = align↑(datasize(buf, n1), EB_PAGE_SIZE), avhdr.valid?, aehdr.valid?, n2 < # apebs, m < # apebs, ubi-io-inv(apebs), n1 ≤ # buf, n1 ≤ LEB_SIZE ⊦ apebs[m] = (n2 = m ⊃ mkpeb(aehdr, avhdr, mkempbuf(LEB_SIZE), 0, false);apebs[m]), datasize(buf, n1) = 0