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Proof step 14 from proof prepost-io-write-data (previous step)

# apebs = # wlar, wlar[n] = wl-entry(m3, used), apebs[n] = mkpeb(aehdr, avhdr, buf0, m, false), avhdr.valid?, aehdr.valid?, n < # wlar, bflipset-cons(bflipset, wlar), is-aligned(m0, EB_PAGE_SIZE), is-aligned(m2, EB_PAGE_SIZE), ubi-io-inv(apebs), ubi-io-peb-inv(mkpeb(aehdr, avhdr, buf0, m, false)), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, n3), valid-eraseq(q), valid-eraseq(wlar, q), valid-eraseq(apebs, q), valid-global-sqn(apebs, n2), valid-peb(mkpeb(aehdr, avhdr, buf0, m, false)), valid-vtbl(apebs, vols, wlar, n3), valid-wl(apebs, wlar), m0 + m2 ≤ LEB_SIZE, m1 + m2 ≤ # buf, m ≤ m0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [err := err0; if err = ESUCCESS then apebs[n] := mkpeb (apebs[n].echdr, apebs[n].vidhdr, subarray(apebs[n].data, 0, m0) + subarray(buf, m1, m2) + mkempbuf(LEB_SIZE - m0 - m2), m0 + m2, apebs[n].bad) else choose n2 with (n2 < m2 ∨ n2 = 0 ∧ m2 = 0) ∧ is-aligned(n2, EB_PAGE_SIZE) in if n2 ≠ 0 then apebs[n] := mkpeb (apebs[n].echdr, apebs[n].vidhdr, subarray(apebs[n].data, 0, m0) + subarray(buf, m1, n2) + mkempbuf(LEB_SIZE - m0 - n2), m0 + n2, apebs[n].bad)] ( ubi-io-inv(apebs) → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, n2) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(apebs, q) ∧ valid-ebatbl(apebs, wlar, vols, n3) ∧ valid-vtbl(apebs, vols, wlar, n3)), n3 = n, n ∈ q, VTBL_VOLID ∈ vols, n3 ∈ q

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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