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

# avol0 = # avol, # lpt0 = # avol, # wbuf.content = EB_PAGE_SIZE, bleb0 = bleb, abs(avol, bleb, wbuf, avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), synced(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol0[bleb.leb], rofs) ⊦ ⟪wbuf_destroy_buf#(rofs; bleb; err)⟫ ⟨awbuf_destroy_buf#(adr0, m0, plog0, avol, lpt0, ns0, rofs; bleb0; err0)⟩ (abs(avol, bleb, wbuf, avol0, rofs) ∧ bleb0 = bleb ∧ err = err0)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 4:
# buf = EB_PAGE_SIZE, # lpt0 = # avol, # avol0 = # avol, bleb0 = bleb, wbuf = mkwbuf(buf, m, m1), abs(avol, bleb, wbuf, avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), synced(avol), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(wbuf, avol0[bleb.leb], rofs) ⊦ ⟪wbuf_destroy_buf#(rofs; bleb; err)⟫ ⟨awbuf_destroy_buf#(adr0, m0, plog0, avol, lpt0, ns0, rofs; bleb0; err0)⟩ (abs(avol, bleb, wbuf, avol0, rofs) ∧ bleb0 = bleb ∧ 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, buf, m, m0]

Additional information

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