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Proof step 52 from proof inv-format (previous step)

# pebs0 = n0 + m1, # pebs = n0 + m1, pebs[m1] = mkpeb(buf, m0, false), m = m1, mtd-cons(pebs0), mtd-cons(pebs), ubi-io-initial(subarray(pebs, 0, m1)) ⊦ [fail_or_success#(; ; err); if err = ESUCCESS then pebs[m] := mkpeb(emptypeb, 0, pebs[m].bad)] ( mtd-cons(pebs) → ⟪err0 := err; if err0 = ESUCCESS then ubi_io_write_echdr#(m1, aechdr((err1 = ESUCCESS ∧ aehdr.valid? ⊃ aehdr.ec + 1;0)), EB_PAGE_SIZE; pebs; err0); m1 := m1 + 1⟫ ( m1 ≤ # pebs0 ∧ # pebs0 = # pebs ∧ mtd-cons(pebs) ∧ (err0 = ESUCCESS → ubi-io-initial(subarray(pebs, 0, m1))) ∧ (err0 = ESUCCESS ∨ ⌊err0⌋ ) ∧ # pebs0 < n0 + m1)), n0 = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 53:
# pebs = n0 + m1, # pebs0 = n0 + m1, pebs[m1] = mkpeb(buf, m0, false), n0 ≠ 0, mtd-cons(pebs), mtd-cons(pebs0), ubi-io-initial(subarray(pebs, 0, m1)) ⊦ [fail_or_success#(; ; err); if err = ESUCCESS then pebs[m1] := mkpeb(emptypeb, 0, pebs[m1].bad)] ( mtd-cons(pebs) → ⟪err0 := err; if err0 = ESUCCESS then ubi_io_write_echdr#(m1, aechdr((err1 = ESUCCESS ∧ aehdr.valid? ⊃ aehdr.ec + 1;0)), EB_PAGE_SIZE; pebs; err0); m1 := m1 + 1⟫ ( m1 ≤ # pebs0 ∧ # pebs0 = # pebs ∧ mtd-cons(pebs) ∧ (err0 = ESUCCESS → ubi-io-initial(subarray(pebs, 0, m1))) ∧ (err0 = ESUCCESS ∨ ⌊err0⌋ ) ∧ # pebs0 < n0 + m1))

Proof step 52 from proof inv-format (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information