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

pebs[m3] = mkpeb(buf0, m1, false), m3 < # pebs, mtd-cons(pebs), n0 + n ≤ # buf, m2 + n ≤ PEB_SIZE ⊦ ∃ buf1. (# buf1 = # buf → range=(buf1, 0, buf, 0, n0) → # buf ≥ n0 + n) ∧ (# buf1 = # buf ∧ range=(buf1, 0, buf, 0, n0) ∧ range=(buf1, n0 + n, buf, n0 + n, # buf - n0 + n)) ∧ ⟨buf := buf1⟩ true

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
pebs[m3] = mkpeb(buf0, m1, false), m3 < # pebs, mtd-cons(pebs), m2 + n ≤ PEB_SIZE, n0 + n ≤ # buf ⊦ ∃ buf1. # buf1 = # buf ∧ range=(buf1, 0, buf, 0, n0) ∧ range=(buf1, n0 + n, buf, n0 + n, # buf - n0 + n) ∧ ⟨buf := buf1⟩ true

Rule argument

Additional information

Used simplifier rules: ⊦ n ≥ m ↔ m ≤ n; (s)