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Proof step 7 from proof refine-write-data-wl (previous step)

pebs[m0].fill = 2 * EB_PAGE_SIZE, apebs[m1] = mkpeb(aehdr, avhdr, buf0, 0, false), m = EB_PAGE_SIZE, m0 = m1, n = align↑(datasize(buf, n), EB_PAGE_SIZE), avhdr.valid?, aehdr.valid?, m0 < # pebs, m1 < # apebs, abs(pebs, apebs), is-aligned(n, EB_PAGE_SIZE), mtd-cons(pebs), ubi-io-inv(apebs), n ≤ # buf, n ≤ LEB_SIZE, m0 < # pebs → m0 < # pebs ∧ (¬ pebs[m0].bad → m0 < # pebs) ⊦ ⟪mtd_asm_write#(m0, 2 * m, 0, n, buf; pebs; err)⟫ ⟨aubi_io_write_data_wl#(m1, n, buf; apebs; err0)⟩ (abs(pebs, apebs) ∧ err = err0), datasize(buf, n) = 0, pebs[m0].bad

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
pebs[m1].fill = 2 * EB_PAGE_SIZE, apebs[m1] = mkpeb(aehdr, avhdr, buf0, 0, false), n = align↑(datasize(buf, n), EB_PAGE_SIZE), datasize(buf, n) ≠ 0, avhdr.valid?, aehdr.valid?, m1 < # pebs, m1 < # apebs, abs(pebs, apebs), is-aligned(n, EB_PAGE_SIZE), mtd-cons(pebs), ubi-io-inv(apebs), n ≤ # buf, n ≤ LEB_SIZE, ¬ pebs[m1].bad ⊦ ⟪mtd_asm_write#(m1, 2 * EB_PAGE_SIZE, 0, n, buf; pebs; err)⟫ ⟨aubi_io_write_data_wl#(m1, n, buf; apebs; err0)⟩ (abs(pebs, apebs) ∧ err = err0)

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic