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Proof step 80 from proof refine-write-data (previous step)

pebs[m3] = mkpeb(buf1, 2 * EB_PAGE_SIZE + m2, false), apebs[m3] = mkpeb(aehdr, avhdr, buf0, m2, false), err = err0, m0 = m3, n0 = n, n1 = n2, avhdr.valid?, aehdr.valid?, m3 < # pebs, m3 < # apebs, abs(pebs, apebs), abs-peb(mkpeb(buf1, 2 * EB_PAGE_SIZE + m2, false), mkpeb(aehdr, avhdr, buf0, m2, false)), is-aligned(n, EB_PAGE_SIZE), is-aligned(m1, EB_PAGE_SIZE), mtd-cons(pebs), ubi-io-inv(apebs), n2 + n ≤ # buf, m1 + n ≤ LEB_SIZE, m2 ≤ m1, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪m := m1 + 2 * EB_PAGE_SIZE; choose n3 with (n3 < n0 ∨ n3 = 0 ∧ n0 = 0) ∧ is-aligned(n3, EB_PAGE_SIZE) in if n3 ≠ 0 then {pebs[m0].data := copy(buf, n1, pebs[m0].data, m, n3); pebs[m0].fill := m + n3}⟫ ⟨aubi_io_write_data#(m3, m1, n2, n, buf; apebs; err1)⟩ (abs(pebs, apebs) ∧ err = err1), err = ESUCCESS

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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