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Proof step 3 from proof crash-neutral-read (previous step)

# lpt = # avol, avol[m] = mapped(buf0), m < # avol, ebm-vol-inv(avol), m0 + n0 ≤ LEB_SIZE, n + n0 ≤ # buf, avol ⊆ avol0 ⊦ ⟨apersistence_io_read#(m, m0, n, n0, adr0, m2, plog0, avol, lpt, ns0; buf; err)⟩ true

Heuristic nonrecursive calls applied rule call right

And obtained the following new goals

Proof step 4:
# lpt = # avol, avol[m3] = mapped(buf1), adr = adr0, buf0 = buf, m = m2, m1 = m3, n = n1, n0 = n2, ns = ns0, plog = plog0, m3 < # avol, ebm-vol-inv(avol), n2 + n1 ≤ # buf, m0 + n1 ≤ LEB_SIZE, avol ⊆ avol0 ⊦ ⟨if m1 < # avol ∧ avol[m1].mapped? ∧ n0 + n ≤ # buf0 ∧ m0 + n ≤ LEB_SIZE then {fail_or_success#(; ; err); if err = ESUCCESS then buf0 := copy(avol[m1].data + mkempbuf(LEB_SIZE - # avol[m1].data), m0, buf0, n0, n) else choose buf with # buf = # buf0 ∧ range=(buf0, 0, buf, 0, n0) ∧ range=(buf0, n0 + n, buf, n0 + n, # buf0 - n0 + n) in buf0 := buf} else abort⟩ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: read: ⊦ ;