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Proof step 11 from proof inv-enter-readonly (previous step)

# buf = EB_PAGE_SIZE, avol[m1] = mapped(buf0), m1 < # avol, wbuf-cons(mkwbuf(buf, m, m0), mapped(buf0), rofs) ⊦ mapped(buf0).mapped? ∧ mkwbuf(buf, m, m0).nbytes < # mkwbuf(buf, m, m0).content ∧ # mkwbuf(buf, m, m0).content = EB_PAGE_SIZE ∧ (¬ true → # mapped(buf0).data = mkwbuf(buf, m, m0).offset) ∧ (true → mkwbuf(buf, m, m0).offset ≤ # mapped(buf0).data) ∧ is-aligned(mkwbuf(buf, m, m0).offset, EB_PAGE_SIZE)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 12:
# buf = EB_PAGE_SIZE, avol[m1] = mapped(buf0), m0 < EB_PAGE_SIZE, m1 < # avol, wbuf-cons(mkwbuf(buf, m, m0), mapped(buf0), rofs) ⊦ is-aligned(m, EB_PAGE_SIZE) ∧ m ≤ # buf0

Rule argument

Additional information

Used simplifier rules: ⊦ EB_PAGE_SIZE ≠ 0; (s)%lf-01: ⊦ m < n ∧ n = n0 → m < n0; (forward) from specification nat-basic%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic%⊦ wbuf-cons(mkwbuf(buf, m0, m1), aleb, boolvar) → (EB_PAGE_SIZE ≤ m1 ↔ false); (s)% ⊦ m < n ↔ ¬ n ≤ m; (ss)% ⊦ mapped(buf).data = buf; (s)% ⊦ mkwbuf(buf, m, m0).offset = m; (s)% ⊦ mkwbuf(buf, m, m0).content = buf; (s)% ⊦ mkwbuf(buf, m, m0).nbytes = m0; (s)% ⊦ mapped(buf).mapped?; (s)