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Proof step 33 from proof crash-neutral-write-data-wl (previous step)

apebs[n2] = mkpeb(aehdr, avhdr, buf1, 0, false), apebs0 = apebs, buf0 = buf, n = n1, n0 = n2, 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, ubi-io-write-data-wl-pre(n0, n, buf0, apebs)

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).fill = m; (s)% ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).vidhdr = avhdr; (s)% ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).echdr = aehdr; (s)% ⊦ mkpeb(aehdr, avhdr, buf, m, boolvar).bad ↔ boolvar; (s)%⊦ ubi-io-write-data-wl-pre(n, n1, buf, apebs) ↔ n < # apebs ∧ ¬ apebs[n].bad ∧ apebs[n].echdr.valid? ∧ apebs[n].vidhdr.valid? ∧ n1 = align↑(datasize(buf, n1), EB_PAGE_SIZE) ∧ apebs[n].fill = 0 ∧ n1 ≤ LEB_SIZE ∧ n1 ≤ # buf ∧ datasize(buf, n1) ≠ 0; (s)