| # apebs = # wlar, apebs0 = apebs, free-ecs(wlar) = ∅, wlar0 = wlar, m < # wlar, bflipset-cons(bflipset, wlar), ubi-io-inv(apebs), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum0), valid-eraseq(eq-entry(m, lref) ' + q1), valid-eraseq(wlar, eq-entry(m, lref) ' + q1), valid-eraseq(apebs, eq-entry(m, lref) ' + q1), valid-global-sqn(apebs, sqnum), valid-vtbl(apebs, vols, wlar, vtblpnum0), valid-wl(apebs, wlar) ⊦ ∀ wlar, apebs, err. ( err = ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(q1) ∧ valid-eraseq(wlar, q1) ∧ valid-eraseq(apebs, q1) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum0) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum0)) ∧ ( err ≠ ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(wlar, eq-entry(m, lref) ' + q1) ∧ valid-eraseq(apebs, eq-entry(m, lref) ' + q1) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum0) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum0)) ∧ ubi-io-inv(apebs) ∧ wlar[m].status ≠ used ∧ (err = ESUCCESS ∨ ⌊err⌋ ) ∧ id○(wlar, wlar0, m) ∧ id○(apebs, apebs0, m) ∧ id(apebs, apebs0, mapped-pebs(vols)) → ⟪vtblpnum := m; q0 := eq-entry(m, lref) ' + q1; q := eq-entry(m, lref) ' + q1; if err = ESUCCESS then {q := q.tail; if wlar[vtblpnum].status ≠ free then err := ENOSPC} else err := ENOSPC⟫ ( (err = ESUCCESS ∨ ⌊err⌋ ) ∧ ( err ≠ ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(q) ∧ valid-eraseq(wlar, q) ∧ valid-eraseq(apebs, q) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum0) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum0)) ∧ q.lebrefs ⊆ q0.lebrefs ∧ ( err = ESUCCESS → vtblpnum < # apebs ∧ wlar[vtblpnum].status = free ∧ ( apebs0 = apebs ∧ wlar0 = wlar ∧ q0 = q ∨ id○(apebs0, apebs, vtblpnum) ∧ id○(wlar0, wlar, vtblpnum) ∧ q0 ≠ [] ∧ q0 = eq-entry(vtblpnum, q0.head.lebref) ' + q) ∧ # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(q) ∧ valid-eraseq(wlar, q) ∧ valid-eraseq(apebs, q) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum0) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum0))), vtblpnum0 = m, VTBL_VOLID ∈ vols, vtblpnum0 ∈ q1 |
# apebs = # wlar, # apebs1 = # wlar, # wlar1 = # wlar, free-ecs(wlar) = ∅, wlar1[m].status ≠ used, vtblpnum0 ≠ m, m < # wlar, bflipset-cons(bflipset, wlar), id(apebs1, apebs, mapped-pebs(vols)), id○(wlar1, wlar, m), id○(apebs1, apebs, m), ubi-io-inv(apebs1), ubi-io-inv(apebs), unique-sqns(apebs), valid-ebatbl(apebs, wlar, vols, vtblpnum0), valid-eraseq(apebs, eq-entry(m, lref) ' + q1), valid-eraseq(wlar, eq-entry(m, lref) ' + q1), valid-eraseq(eq-entry(m, lref) ' + q1), valid-global-sqn(apebs, sqnum), valid-vtbl(apebs, vols, wlar, vtblpnum0), valid-wl(apebs, wlar), ¬ vtblpnum0 ∈ q1, ¬ VTBL_VOLID ∈ vols, err = ESUCCESS → unique-sqns(apebs1) ∧ valid-global-sqn(apebs1, sqnum) ∧ valid-wl(apebs1, wlar1) ∧ valid-eraseq(q1) ∧ valid-eraseq(wlar1, q1) ∧ valid-eraseq(apebs1, q1) ∧ bflipset-cons(bflipset, wlar1) ∧ valid-ebatbl(apebs1, wlar1, vols, vtblpnum0) ∧ valid-vtbl(apebs1, vols, wlar1, vtblpnum0), err ≠ ESUCCESS → unique-sqns(apebs1) ∧ valid-global-sqn(apebs1, sqnum) ∧ valid-wl(apebs1, wlar1) ∧ valid-eraseq(wlar1, eq-entry(m, lref) ' + q1) ∧ valid-eraseq(apebs1, eq-entry(m, lref) ' + q1) ∧ bflipset-cons(bflipset, wlar1) ∧ valid-ebatbl(apebs1, wlar1, vols, vtblpnum0) ∧ valid-vtbl(apebs1, vols, wlar1, vtblpnum0), err = ESUCCESS ∨ ⌊err⌋ ⊦ ⟪vtblpnum := m; q0 := eq-entry(m, lref) ' + q1; q := eq-entry(m, lref) ' + q1; if err = ESUCCESS then {q := q.tail; if wlar1[vtblpnum].status ≠ free then err := ENOSPC} else err := ENOSPC⟫ ( (err = ESUCCESS ∨ ⌊err⌋ ) ∧ ( err ≠ ESUCCESS → unique-sqns(apebs1) ∧ valid-global-sqn(apebs1, sqnum) ∧ valid-wl(apebs1, wlar1) ∧ valid-eraseq(q) ∧ valid-eraseq(wlar1, q) ∧ valid-eraseq(apebs1, q) ∧ bflipset-cons(bflipset, wlar1) ∧ valid-ebatbl(apebs1, wlar1, vols, vtblpnum0) ∧ valid-vtbl(apebs1, vols, wlar1, vtblpnum0)) ∧ q.lebrefs ⊆ q0.lebrefs ∧ ( err = ESUCCESS → vtblpnum < # wlar ∧ wlar1[vtblpnum].status = free ∧ ( apebs = apebs1 ∧ wlar = wlar1 ∧ q0 = q ∨ id○(apebs, apebs1, vtblpnum) ∧ id○(wlar, wlar1, vtblpnum) ∧ q0 ≠ [] ∧ q0 = eq-entry(vtblpnum, q0.head.lebref) ' + q) ∧ unique-sqns(apebs1) ∧ valid-global-sqn(apebs1, sqnum) ∧ valid-wl(apebs1, wlar1) ∧ valid-eraseq(q) ∧ valid-eraseq(wlar1, q) ∧ valid-eraseq(apebs1, q) ∧ bflipset-cons(bflipset, wlar1) ∧ valid-ebatbl(apebs1, wlar1, vols, vtblpnum0) ∧ valid-vtbl(apebs1, vols, wlar1, vtblpnum0)))
Used simplifier rules: lf-01: ⊦ m < n ∧ n = n0 → m < n0; (forward) from specification nat-basic%idexcept-size: ⊦ id○(wlar, wlar0, n) → # wlar = # wlar0; (forward) from specification array-copy[wlarray-base]%idexcept-size: ⊦ id○(apebs, apebs0, n) → # apebs = # apebs0; (forward) from specification array-copy[apebs]