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Proof step 9 from proof inv-deallocate-gnd (previous step)

# lpt0 = # avol, # lpt = # avol, lpt[n] = mklp(m0, m1, LP_GROUP_NODES, m2), keyset(gch) = gc-heap(lpt, log0), n < # avol, awbuf-inv(avol, bleb), bin-heap-inv(gch, lpt), buf-ro-rw-mode(isbuf, bleb, lpt, avol), bufs-log-only(bleb, log0, lpt), freelist-cons(lpt, freelist), log-group-block(log0, lpt), lpt-free-unref(lpt0), lpt-free-unref(lpt), lpt-leb-size(lpt0), lpt-leb-size(lpt), lpt-ram-flash(lpt, lpt0, log0), synced(avol) ⊦ ⟪awbuf_is_readonly#(adr, m, log0, avol, lpt0, ns, bleb, isbuf; ; isbuf1); if isbuf1 then err := EROFS else {awbuf_unmap#(n, adr, m, log0, lpt0, ns, bleb, isbuf; avol); lpt[n].flags := LP_FREE; lpt[n].ref-size := 0; lpt[n] := mklp(lpt[n].ref-size, 0, lpt[n].flags, lpt[n].gcheapidx); freelist := freelist + n '; gc_heap_remove#(lpt[n].gcheapidx; gch, lpt); err := ESUCCESS}⟫ ( lpt-free-unref(lpt) ∧ freelist-cons(lpt, freelist) ∧ bin-heap-inv(gch, lpt) ∧ keyset(gch) = gc-heap(lpt, log0) ∧ bufs-log-only(bleb, log0, lpt) ∧ # lpt = # avol ∧ log-group-block(log0, lpt) ∧ buf-ro-rw-mode(isbuf, bleb, lpt, avol) ∧ lpt-leb-size(lpt) ∧ lpt-ram-flash(lpt, lpt0, log0) ∧ awbuf-inv(avol, bleb) ∧ # lpt0 = # avol), dups(log0), n ∈ log0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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