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Proof step 12 from proof crash-neutral-read (previous step)

avol[m2] = mapped(buf1), m2 < # avol, ebm-vol-inv(avol), n2 + n1 ≤ # buf, m1 + n1 ≤ LEB_SIZE, avol ⊆ avol0 ⊦ ⟨choose buf1 with # buf1 = # buf ∧ range=(buf, 0, buf1, 0, n2) ∧ range=(buf, n2 + n1, buf1, n2 + n1, # buf - n2 + n1) in buf := buf1⟩ true

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 13:
avol[m2] = mapped(buf0), m2 < # avol, ebm-vol-inv(avol), m1 + n1 ≤ LEB_SIZE, n2 + n1 ≤ # buf, avol ⊆ avol0 ⊦ ∃ buf1. (# buf1 = # buf → range=(buf, 0, buf1, 0, n2) → # buf ≥ n2 + n1) ∧ (# buf1 = # buf ∧ range=(buf, 0, buf1, 0, n2) ∧ range=(buf, n2 + n1, buf1, n2 + n1, # buf - n2 + n1)) ∧ ⟨buf := buf1⟩ true

Proof step 12 from proof crash-neutral-read (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information