[Imprint][Data Privacy Statement][E-Mail]



View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 168 from proof inv-recover (previous step)

# apebs0 = # wlar0, # wlar1 = # wlar0, # wlar = # wlar0, wlar0[m1].ec:= 0 = wl-entry(m, stat), wlar[m1].status = erasing, recs0[VTBL_VOLID × VTBL_LNUM] = recovery-entry(m1, avhdr.sqn), apebs0[m1] = mkpeb(aehdr, avhdr, buf1, m0, false), m1 < # wlar0, nx < # wlar0, bflipset-cons(bflipset1, wlar1), bflipset-cons(bflipset, wlar), bflipset-cons(bflipset0, wlar), bflipset-cons(bflipset2, wlar0), indices-erasing(wlar, nx), is-encoded(vtbl, buf1), ubi-io-inv(apebs0), ubi-io-peb-inv(mkpeb(aehdr, avhdr, buf1, m0, false)), unique-sqns(apebs0), unmapped-vols(vols0), valid-ebatbl(apebs0, wlar1, vols1, m1), valid-ebatbl(apebs0, wlar0, vols, m1), valid-eraseq(q1), valid-eraseq(wlar1, q1), valid-eraseq(apebs0, q1), valid-eraseq(wlar, q), valid-eraseq(wlar0, q0), valid-eraseq-strong(apebs0, vtbl, q0), valid-eraseq-stronger(apebs0, q), valid-global-sqn(apebs0, vtblpnum5), valid-global-sqn(apebs0, sqnum), valid-indices(wlar0, nx), valid-recs(apebs0, wlar, recs0), valid-recs-sqns(apebs0, recs0), valid-vtbl(apebs0, vols1, wlar1, m1), valid-vtbl(apebs0, vols0, wlar, m1), valid-vtbl(apebs0, vols, wlar0, m1), valid-vtbl-weak(apebs0, m1), valid-wl(apebs0, wlar1), valid-wl(apebs0, wlar), valid-wl(apebs0, wlar0), m1 ∈ nx, VTBL_VOLID × VTBL_LNUM ∈ recs0, q ⊆ q0 ⊦ dups(nx), m1 ∈ q0, VTBL_VOLID ∈ vols, m1 ∈ q1, VTBL_VOLID ∈ vols0, m1 ∈ q, VTBL_VOLID ∈ vols1, stat = used ∧ avhdr.vol = VTBL_VOLID ∧ avhdr.leb = VTBL_LNUM

Heuristic elimination applied rule insert elim lemma

And closed the goal!

Rule argument

spec: wlentry name: elim-02 seq: ⊦ m = wle.ec ∧ stat = wle.status ↔ wle = wl-entry(m, stat) subst: [wle, m, stat] → [wlar[m1], m2, stat0]

Additional information

Used simplifier rules: lf-valid-wl-not-erroneous: n < # wlar, stat ≠ erroneous ⊦ apebs[n] = mkpeb(aehdr, avhdr, buf, m, boolvar) ∧ wlar[n] = wl-entry(m0, stat) ∧ valid-wl(apebs, wlar) → ¬ boolvar;%lf-valid-vtbl-neq-erasing: ⊦ wlar[m] = wl-entry(m0, erasing) ∧ valid-vtbl(apebs, vols, wlar, n) → n ≠ m;% ⊦ valid-vtbl(apebs, vols, wlar, n0) → n0 < # wlar; (ss)% ⊦ erroneous ≠ erasing; (s)%valid-vtbl-wlar-status: ⊦ wlar[n0] = wl-entry(m, stat) ∧ valid-vtbl(apebs, vols, wlar, n0) → stat = used; (forward) from specification ubi-base% ⊦ m = wle.ec ∧ stat = wle.status ↔ wle = wl-entry(m, stat); (elim) Used terms: wlar[m1], m2, stat0