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Proof step 8 from proof crash-neutral-read (previous step)

pebs[m3] = mkpeb(buf1, m1, false), m3 < # pebs, mtd-cons(pebs), m2 + n ≤ PEB_SIZE, n0 + n ≤ # buf ⊦ ⟨fail_or_success#(; ; err); bitflips := ?; if err = ESUCCESS then buf := copy(pebs[m3].data, m2, buf, n0, n) else choose buf1 with # buf1 = # buf ∧ range=(buf1, 0, buf, 0, n0) ∧ range=(buf1, n0 + n, buf, n0 + n, # buf - n0 + n) in buf := buf1⟩ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 9:
pebs[m3] = mkpeb(buf1, m1, false), m3 < # pebs, mtd-cons(pebs), n0 + n ≤ # buf, m2 + n ≤ PEB_SIZE ⊦ ⟨choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; bitflips := ?; if err = ESUCCESS then buf := copy(pebs[m3].data, m2, buf, n0, n) else choose buf1 with # buf1 = # buf ∧ range=(buf1, 0, buf, 0, n0) ∧ range=(buf1, n0 + n, buf, n0 + n, # buf - n0 + n) in buf := buf1⟩ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: fail_or_success#(; ; ERR) {choose ERR0 with ⌊ERR0⌋ ∨ ERR0 = ESUCCESS in ERR := ERR0};