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Proof step 99 from proof synced-write-buf (previous step)

# lpt = # avol, avol[m1] = mapped(buf0), m = buffered(m1).leb, buffered(m1).isbuf?, n < n2, m1 < # avol, n < # buf, awbuf-inv(avol, buffered(m1)), is-aligned(# buf0 + n, EB_PAGE_SIZE), avol0 ↓ avol[m1, mapped(buf0 + subarray(buf, 0, n))], EB_PAGE_SIZE ≤ # buf0 % EB_PAGE_SIZE + n, # buf0 + n2 ≤ LEB_SIZE, n2 ≤ # buf, ⌊err2⌋ ⊦ ⟨choose n1 with n1 ≠ 0 ∧ n1 < n2 ∧ is-aligned(# avol[m].data + n1, EB_PAGE_SIZE) in avol[m] := mapped(avol[m].data + subarray(buf, 0, n1)) ifnone skip; isbuf := true⟩ (synced(avol) ∧ avol0 ↓ avol), n = 0, synced(avol) ∧ avol0 ↓ avol

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 100:
# lpt = # avol, avol[m1] = mapped(buf0), m = buffered(m1).leb, buffered(m1).isbuf?, n < # buf, m1 < # avol, n < n2, awbuf-inv(avol, buffered(m1)), is-aligned(# buf0 + n, EB_PAGE_SIZE), avol0 ↓ avol[m1, mapped(buf0 + subarray(buf, 0, n))], n2 ≤ # buf, # buf0 + n2 ≤ LEB_SIZE, EB_PAGE_SIZE ≤ # buf0 % EB_PAGE_SIZE + n, ⌊err2⌋ ⊦ (∀ n1. (n1 ≠ 0 → n1 < n2 → avol[m].mapped? ∧ m < # avol) ∧ ¬(n1 ≠ 0 ∧ n1 < n2 ∧ is-aligned(# avol[m].data + n1, EB_PAGE_SIZE))) ∧ ⟨skip; isbuf := true⟩ (synced(avol) ∧ avol0 ↓ avol), ∃ n1. (n1 ≠ 0 → n1 < n2 → avol[m].mapped? ∧ m < # avol) ∧ (n1 ≠ 0 ∧ n1 < n2 ∧ is-aligned(# avol[m].data + n1, EB_PAGE_SIZE)) ∧ ⟨avol[m] := mapped(avol[m].data + subarray(buf, 0, n1)); isbuf := true⟩ (synced(avol) ∧ avol0 ↓ avol), n = 0, synced(avol) ∧ avol0 ↓ avol

Proof step 99 from proof synced-write-buf (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

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