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

# wbuf.content = EB_PAGE_SIZE, # lpt0 = # avol, # avol0 = # avol, avol[m] = mapped(buf1), buf = buf0, m < # avol, abs(avol, bleb, wbuf, avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), m0 + n ≤ LEB_SIZE, n ≤ # buf0, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol0[bleb.leb], rofs) ⊦ ⟪wbuf_read_buf#(m, m0, n, bleb, wbuf, adr0, m2, plog0, avol0, lpt0, ns0; buf; err)⟫ ⟨awbuf_read_buf#(m, m0, n, adr0, m2, plog0, avol, lpt0, ns0, bleb, rofs; buf0; err0)⟩ (buf = buf0 ∧ err = err0)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 4:
# avol0 = # avol, # lpt0 = # avol, # buf2 = EB_PAGE_SIZE, avol[m] = mapped(buf1), buf = buf0, wbuf = mkwbuf(buf2, m1, m3), m < # avol, abs(avol, bleb, wbuf, avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), n ≤ # buf0, m0 + n ≤ LEB_SIZE, bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol0[bleb.leb], rofs) ⊦ ⟪wbuf_read_buf#(m, m0, n, bleb, wbuf, adr0, m2, plog0, avol0, lpt0, ns0; buf; err)⟫ ⟨awbuf_read_buf#(m, m0, n, adr0, m2, plog0, avol, lpt0, ns0, bleb, rofs; buf0; err0)⟩ (buf = buf0 ∧ err = err0)

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, buf2, 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, buf2, m1, m2