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Proof step 16 from proof inv-write (previous step)

err0 = ESUCCESS, m2 < # avols[default-volid], ebm-cons(avols), is-aligned(m1, EB_PAGE_SIZE), is-aligned(n, EB_PAGE_SIZE), default-volid ∈ avols, m1 + n ≤ LEB_SIZE, n + n2 ≤ # buf, avols[default-volid][m2].mapped? → avols[default-volid][m2].fill ≤ m1, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [if avols[default-volid][m2].mapped? then if n ≠ 0 then avols[default-volid][m2] := mapped(subarray(avols[default-volid][m2].data, 0, m1) + subarray(buf, n2, n) + mkempbuf(LEB_SIZE - m1 - n), m1 + n) else avols[default-volid][m2] := mapped(mkempbuf(m1) + subarray(buf, n2, n) + mkempbuf(LEB_SIZE - m1 - n), m1 + n)] (ebm-cons(avols) → default-volid ∈ avols)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

pos: right 1

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