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Proof step 6 from proof refine-enter-readonly (previous step)

# buf = EB_PAGE_SIZE, # lpt0 = # avol, # avol0 = # avol, abs(avol, bleb, mkwbuf(buf, m, m1), avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m, m1), avol0[bleb.leb], rofs) ⊦ ⟪rofs := true⟫ ⟨awbuf_enter_readonly#(adr0, m0, plog0, avol, lpt0, ns0, bleb; ; rofs0)⟩ (abs(avol, bleb, mkwbuf(buf, m, m1), avol0, rofs) ∧ (rofs0 ↔ rofs))

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 7:
# avol0 = # avol, # lpt0 = # avol, # buf = EB_PAGE_SIZE, abs(avol, bleb, mkwbuf(buf, m, m1), avol0, rofs), awbuf-inv(avol, bleb), ebm-vol-inv(avol0), bleb ≠ nobuffer → bleb.leb < # avol ∧ wbuf-cons(mkwbuf(buf, m, m1), avol0[bleb.leb], rofs) ⊦ ⟨awbuf_enter_readonly#(adr0, m0, plog0, avol, lpt0, ns0, bleb; ; rofs0)⟩ (abs(avol, bleb, mkwbuf(buf, m, m1), avol0, true) ∧ (rofs0 ↔ true))

Proof step 6 from proof refine-enter-readonly (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information