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Proof step 37 from proof inv-io-read (previous step)

# buf = # buf2, # buf2 = n2 + n0 + n, UBI_READ_RETRIES = n1 + m4, pebs[m3] = mkpeb(buf1, m2, false), m3 < # pebs, mtd-cons(pebs), range=(buf, n0 + n, buf2, n0 + n, n2), range=(buf, 0, buf2, 0, n0), n0 ≤ # buf2, m4 ≤ UBI_READ_RETRIES, m4 ≤ UBI_READ_RETRIES + 1, n0 + n ≤ # buf2, m1 + n ≤ PEB_SIZE, ⌊err1⌋ ⊦ ( (n0 + n) + n2 ≤ # copy(buf1, m1, buf, n0, n) ∧ (n0 + n) + n2 ≤ # buf2 ∧ subarray(copy(buf1, m1, buf, n0, n), n0 + n, n2) = subarray(buf2, n0 + n, n2)) ∧ subarray(buf, 0, n0) = subarray(buf2, 0, n0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 38:
# buf = # buf2, # buf2 = n2 + n0 + n, UBI_READ_RETRIES = n1 + m4, pebs[m3] = mkpeb(buf1, m2, false), m3 < # pebs, mtd-cons(pebs), range=(buf, n0 + n, buf2, n0 + n, n2), range=(buf, 0, buf2, 0, n0), n0 ≤ # buf2, m4 ≤ UBI_READ_RETRIES, m4 ≤ UBI_READ_RETRIES + 1, n0 + n ≤ # buf2, m1 + n ≤ PEB_SIZE, ⌊err1⌋ ⊦ subarray(buf, n0 + n, n2) = subarray(buf2, n0 + n, n2) ∧ subarray(buf, 0, n0) = subarray(buf2, 0, n0)

Rule argument

Additional information

Used simplifier rules: ⊦ m ≤ n → (n ≤ m ↔ m = n); (s)%n1 + n2 ≤ m0, m0 + m1 ≤ # buf ⊦ subarray(copy(buf0, n0, buf, n1, n2), m0, m1) = subarray(buf, m0, m1); (s)%c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic% ⊦ m ≤ m; (s)% ⊦ m + n ≤ m + n0 ↔ n ≤ n0; (s)% ⊦ # copy(buf, m, buf0, m0, n) = # buf0; (s)