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Proof step 4 from proof prepost-erase-worker-helper (previous step)

# apebs0 = # wlar0, wlar0[m] = wl-entry(m0, stat), apebs = apebs0, stat = erasing, wlar = wlar0, m < # wlar0, bflipset-cons(bflipset, wlar0), ubi-io-inv(apebs0), unique-sqns(apebs0), valid-ebatbl(apebs0, wlar0, vols, vtblpnum), valid-eraseq(q0 + eq-entry(m, lref) ' + q1), valid-eraseq(wlar0, q0 + eq-entry(m, lref) ' + q1), valid-eraseq(apebs0, q0 + eq-entry(m, lref) ' + q1), valid-global-sqn(apebs0, sqnum), valid-vtbl(apebs0, vols, wlar0, vtblpnum), valid-wl(apebs0, wlar0) ⊦ ⟪ubi_erase_worker_helper#(m; wlar, apebs; err)⟫ ( ( err = ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(wlar, q0 + q1) ∧ valid-eraseq(apebs, q0 + q1) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum)) ∧ ( err ≠ ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(wlar, q0 + eq-entry(m, lref) ' + q1) ∧ valid-eraseq(apebs, q0 + eq-entry(m, lref) ' + q1) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum)) ∧ 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, VTBL_VOLID ∈ vols, vtblpnum ∈ q0, vtblpnum ∈ q1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
# apebs0 = # wlar0, wlar0[m] = wl-entry(m0, erasing), apebs = apebs0, wlar = wlar0, vtblpnum ≠ m, m < # wlar0, bflipset-cons(bflipset, wlar0), ubi-io-inv(apebs0), unique-sqns(apebs0), valid-ebatbl(apebs0, wlar0, vols, vtblpnum), valid-eraseq(apebs0, q0 + eq-entry(m, lref) ' + q1), valid-eraseq(wlar0, q0 + eq-entry(m, lref) ' + q1), valid-eraseq(q0 + eq-entry(m, lref) ' + q1), valid-global-sqn(apebs0, sqnum), valid-vtbl(apebs0, vols, wlar0, vtblpnum), valid-wl(apebs0, wlar0), ¬ vtblpnum ∈ q1, ¬ vtblpnum ∈ q0, ¬ VTBL_VOLID ∈ vols ⊦ ⟪ubi_erase_worker_helper#(m; wlar, apebs; err)⟫ ( ( err = ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(wlar, q0 + q1) ∧ valid-eraseq(apebs, q0 + q1) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum)) ∧ ( err ≠ ESUCCESS → # apebs = # wlar ∧ unique-sqns(apebs) ∧ valid-global-sqn(apebs, sqnum) ∧ valid-wl(apebs, wlar) ∧ valid-eraseq(wlar, q0 + eq-entry(m, lref) ' + q1) ∧ valid-eraseq(apebs, q0 + eq-entry(m, lref) ' + q1) ∧ bflipset-cons(bflipset, wlar) ∧ valid-ebatbl(apebs, wlar, vols, vtblpnum) ∧ valid-vtbl(apebs, vols, wlar, vtblpnum)) ∧ 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)))

Rule argument

Additional information

Used simplifier rules: lf-valid-vtbl-neq-erasing: ⊦ wlar[m] = wl-entry(m0, erasing) ∧ valid-vtbl(apebs, vols, wlar, n) → n ≠ m;