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Proof step 17 from proof crash-neutral-write (previous step)

avol[m2] = mapped(buf0), m2 < # avol, n0 < n, ebm-vol-inv(avol), is-aligned(m1, EB_PAGE_SIZE), is-aligned(n, EB_PAGE_SIZE), is-aligned(n0, EB_PAGE_SIZE), # buf0 ≤ m1, m1 + n ≤ LEB_SIZE, n2 + n ≤ # buf, avol ⊆ avol0 ⊦ 0 < n ∧ is-aligned(0, EB_PAGE_SIZE) ∧ ⟨if 0 ≠ 0 then avol[m2] := mapped(avol[m2].data + mkempbuf(m1 - # avol[m2].data) + subarray(buf, n2, 0))⟩ (avol ⊆ avol0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
avol[m2] = mapped(buf0), n0 < n, m2 < # avol, ebm-vol-inv(avol), is-aligned(n0, EB_PAGE_SIZE), is-aligned(n, EB_PAGE_SIZE), is-aligned(m1, EB_PAGE_SIZE), n2 + n ≤ # buf, m1 + n ≤ LEB_SIZE, # buf0 ≤ m1, avol ⊆ avol0 ⊦ ⟨skip⟩ true

Rule argument

Additional information

Used simplifier rules: n ≠ 0 ⊦ is-aligned(0, n); (s)% ⊦ EB_PAGE_SIZE ≠ 0; (s)% ⊦ m < n → n ≠ 0; (s)% ⊦ 0 < m ↔ m ≠ 0; (s)