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Proof step 2 from proof refine-read-data (previous step)

buf = buf0, m1 = EB_PAGE_SIZE, abs(pebs, apebs), mtd-cons(pebs), ubi-io-inv(apebs), ubi-io-read-data-pre(m, m0, n, n0, buf, apebs) ⊦ ⟪ubi_io_read_data#(m, m0, n, n0, m1, pebs; buf; bitflips, err)⟫ ⟨aubi_io_read_data#(m, m0, n, n0, apebs; buf0; isbad, err0)⟩ (abs(pebs, apebs) ∧ buf = buf0 ∧ (bitflips ↔ isbad) ∧ err = err0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
buf = buf0, m < # apebs, abs(pebs, apebs), mtd-cons(pebs), ubi-io-inv(apebs), n + n0 ≤ # buf0, m0 + n0 ≤ LEB_SIZE, ¬ apebs[m].bad ⊦ ⟪ubi_io_read_data#(m, m0, n, n0, EB_PAGE_SIZE, pebs; buf; bitflips, err)⟫ ⟨aubi_io_read_data#(m, m0, n, n0, apebs; buf0; isbad, err0)⟩ (buf = buf0 ∧ (bitflips ↔ isbad) ∧ err = err0)

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic%⊦ ubi-io-read-data-pre(n, n0, m0, n1, buf, apebs) ↔ n < # apebs ∧ ¬ apebs[n].bad ∧ n0 + n1 ≤ LEB_SIZE ∧ m0 + n1 ≤ # buf; (s)