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Proof step 393 from proof refine-write (previous step)

# buf = vtblpnum5 + n1, # apebs = # wlar, apebs[n4] = mkpeb(aehdr, avhdr, buf2, m0, false), vols[v][vtblpnum3] = ⌜n4⌝ , avols[v][vtblpnum3] = mapped(buf2, m), wlar[n4] = wl-entry(m1, used), str0 = "ubi: failed to read data from PEB " + vols[v][vtblpnum3].pnum.toString, aehdr.valid?, avhdr.valid?, vtblpnum3 < # avols[v], n4 < # wlar, vtblpnum3 < # vols[v], abs(avols, apebs, vols, q), bflipset-cons(bflipset, wlar), ebm-cons(avols), is-aligned(vtblpnum5, EB_PAGE_SIZE), is-aligned(n1, EB_PAGE_SIZE), range=(buf, vtblpnum5, mkbuf(vtblpnum5 + n1), vtblpnum5, n1), 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 ∈ avols, v ∈ vols, vtblpnum5 ≤ LEB_SIZE, m ≤ LEB_SIZE, m0 ≤ LEB_SIZE, vtblpnum5 + n1 ≤ LEB_SIZE, n3 + n1 ≤ # buf3, n1 + n3 ≤ # buf3, m ≤ vtblpnum5, m0 ≤ vtblpnum5, ⌊err0⌋ , ⌊err3⌋ ⊦ ∀ . true → ⟨ebm_write#(v, vtblpnum3, vtblpnum5, n3, n1, buf3; avols; err1)⟩ (abs(avols, apebs, vols, q) ∧ err0 = err1), vols[v][vtblpnum3] = unmapped, n1 = 0, vtblpnum4 = n4, VTBL_VOLID ∈ vols

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 394:
# buf = vtblpnum5 + n1, # apebs = # wlar, apebs[n4] = mkpeb(aehdr, avhdr, buf2, m0, false), vols[v][vtblpnum3] = ⌜n4⌝ , avols[v][vtblpnum3] = mapped(buf2, m), wlar[n4] = wl-entry(m1, used), n1 ≠ 0, vtblpnum4 ≠ n4, aehdr.valid?, avhdr.valid?, vtblpnum3 < # avols[v], n4 < # wlar, vtblpnum3 < # vols[v], abs(avols, apebs, vols, q), bflipset-cons(bflipset, wlar), ebm-cons(avols), is-aligned(vtblpnum5, EB_PAGE_SIZE), is-aligned(n1, EB_PAGE_SIZE), range=(buf, vtblpnum5, mkbuf(vtblpnum5 + n1), vtblpnum5, n1), 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 ∈ avols, v ∈ vols, vtblpnum5 ≤ LEB_SIZE, m ≤ LEB_SIZE, m0 ≤ LEB_SIZE, vtblpnum5 + n1 ≤ LEB_SIZE, n3 + n1 ≤ # buf3, n1 + n3 ≤ # buf3, m ≤ vtblpnum5, m0 ≤ vtblpnum5, ⌊err0⌋ , ⌊err3⌋ , ¬ VTBL_VOLID ∈ vols ⊦ ⟨ebm_write#(v, vtblpnum3, vtblpnum5, n3, n1, buf3; avols; err1)⟩ (abs(avols, apebs, vols, q) ∧ err0 = err1)

Rule argument

Additional information

Used simplifier rules: ⊦ unmapped ≠ ⌜m⌝ ; (s)