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Proof step 3 from proof inv-read-buf (previous step)

# wbuf.content = EB_PAGE_SIZE, # lpt = # avol, avol[m] = mapped(buf0), m < # avol, ebm-vol-inv(avol), m0 + n ≤ LEB_SIZE, n ≤ # buf, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs) ⊦ ⟪wbuf_read_buf#(m, m0, n, bleb, wbuf, adr, m1, plog, avol, lpt, ns; buf; err)⟫ true

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 4:
# lpt = # avol, # buf1 = EB_PAGE_SIZE, avol[m] = mapped(buf0), wbuf = mkwbuf(buf1, m2, m3), m < # avol, ebm-vol-inv(avol), n ≤ # buf, m0 + n ≤ LEB_SIZE, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol[bleb.leb], rofs) ⊦ ⟪wbuf_read_buf#(m, m0, n, bleb, wbuf, adr, m1, plog, avol, lpt, ns; buf; err)⟫ true

Rule argument

spec: wbuf name: elim seq: ⊦ (buf = wbuf.content ∧ m = wbuf.offset) ∧ m0 = wbuf.nbytes ↔ wbuf = mkwbuf(buf, m, m0) subst: [wbuf, buf, m, m0] → [wbuf, buf1, m1, m2]

Additional information

Used simplifier rules: ⊦ (buf = wbuf.content ∧ m = wbuf.offset) ∧ m0 = wbuf.nbytes ↔ wbuf = mkwbuf(buf, m, m0); (elim) Used terms: wbuf, buf1, m1, m2