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Proof step 338 from proof prepost-atomic-leb-change (previous step)

# apebs0 = # wlar, LEB_SIZE = n2 + n0, wlar[vtblpnum1] = wl-entry(m0, used), apebs0[n1] = mkpeb(aehdr, empty, mkempbuf(LEB_SIZE), 0, false), wlar[n1] = wl-entry(m1, free), n0 = LEB_SIZE, aehdr.valid?, vtblpnum1 < # wlar, n1 < # wlar, bflipset-cons(bflipset -- vtblpnum1, wlar), bflipset-cons(bflipset, wlar), is-aligned(n0, EB_PAGE_SIZE), is-encoded(to-vtbl(vols)[v, m], mkempbuf(LEB_SIZE)), ubi-io-inv(apebs0), ubi-io-inv(apebs0[n1, mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)]), unique-sqns(apebs0), valid-ebatbl(apebs0, wlar, vols, vtblpnum1), valid-eraseq(apebs0, q), valid-eraseq(wlar, q), valid-eraseq(q), valid-eraseq(q + eq-entry(vtblpnum1, VTBL_VOLID × VTBL_LNUM) '), valid-global-sqn(apebs0, sqnum), valid-global-sqn(apebs0, sqnum + 1), valid-peb(mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)), valid-vtbl(apebs0, vols, wlar, vtblpnum1), valid-wl(apebs0, wlar), n0 ≤ LEB_SIZE ⊦ vtblpnum1 = n1, VTBL_VOLID ∈ vols, vtblpnum1 ∈ q, v ∈ vols, valid-ebatbl (apebs0[n1, mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)], wlar[vtblpnum1, wl-entry(m0, erasing)][n1, wl-entry(m1, used)], vols[v, fill(mkebatbl(m), unmapped)], n1) ∧ valid-vtbl (apebs0[n1, mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)], vols[v, fill(mkebatbl(m), unmapped)], wlar[vtblpnum1, wl-entry(m0, erasing)][n1, wl-entry(m1, used)], n1)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 339:
# apebs0 = # wlar, wlar[vtblpnum1] = wl-entry(m0, used), apebs0[n1] = mkpeb(aehdr, empty, mkempbuf(LEB_SIZE), 0, false), wlar[n1] = wl-entry(m1, free), aehdr.valid?, vtblpnum1 < # wlar, n1 < # wlar, bflipset-cons(bflipset -- vtblpnum1, wlar), bflipset-cons(bflipset, wlar), is-aligned(LEB_SIZE, EB_PAGE_SIZE), is-encoded(to-vtbl(vols)[v, m], mkempbuf(LEB_SIZE)), ubi-io-inv(apebs0), ubi-io-inv(apebs0[n1, mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)]), unique-sqns(apebs0), valid-ebatbl(apebs0, wlar, vols, vtblpnum1), valid-eraseq(apebs0, q), valid-eraseq(wlar, q), valid-eraseq(q), valid-eraseq(q + eq-entry(vtblpnum1, VTBL_VOLID × VTBL_LNUM) '), valid-global-sqn(apebs0, sqnum), valid-global-sqn(apebs0, sqnum + 1), valid-peb(mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)), valid-vtbl(apebs0, vols, wlar, vtblpnum1), valid-wl(apebs0, wlar) ⊦ vtblpnum1 = n1, VTBL_VOLID ∈ vols, vtblpnum1 ∈ q, v ∈ vols, valid-ebatbl (apebs0[n1, mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)], wlar[vtblpnum1, wl-entry(m0, erasing)][n1, wl-entry(m1, used)], vols[v, fill(mkebatbl(m), unmapped)], n1) ∧ valid-vtbl (apebs0[n1, mkpeb(aehdr, avidhdr(VTBL_VOLID, VTBL_LNUM, sqnum, 0, 0), mkempbuf(LEB_SIZE), 0, false)], vols[v, fill(mkebatbl(m), unmapped)], wlar[vtblpnum1, wl-entry(m0, erasing)][n1, wl-entry(m1, used)], n1)

Rule argument

Additional information

Used simplifier rules: ⊦ m ≤ m; (s)%c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic% ⊦ m = m + n ↔ n = 0; (s)