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Proof step 140 from proof inv-sync (previous step)

# lpt0 = # avol, # lpt1 = # avol, isbuf ↔ isbuf1, lpt1[bleb1.leb] = mklp(m3, m5, lpf, m4), bleb = bleb1, isbuf1, keyset(gch) = gc-heap(lpt1, log0), log = log0, lpt = lpt0, m = m2, awbuf-inv(avol, bleb1), bin-heap-inv(gch, lpt1), buf-ro-rw-mode(isbuf1, bleb1, lpt1, avol), bufs-log-only(bleb1, log0, lpt1), freelist-cons(lpt1, freelist), log-group-block(log0, lpt1), lpt-free-unref(lpt0), lpt-free-unref(lpt1), lpt-leb-size(lpt0), lpt-leb-size(lpt1), lpt-ram-flash(lpt1, lpt0, log0), bleb1.isbuf? ∧ ¬ isbuf1 → bleb1.leb < # avol ∧ # avol[bleb1.leb].data ≤ LEB_SIZE ∧ avol[bleb1.leb].mapped? ∧ m5 = # avol[bleb1.leb].data ∧ lpf ≠ LP_FREE ∧ is-aligned(# avol[bleb1.leb].data, 2 * NODE_HEADER_SIZE) ⊦ ⟪err := EROFS⟫ ( lpt-free-unref(lpt1) ∧ freelist-cons(lpt1, freelist) ∧ bin-heap-inv(gch, lpt1) ∧ keyset(gch) = gc-heap(lpt1, log0) ∧ bufs-log-only(bleb1, log0, lpt1) ∧ # lpt1 = # avol ∧ log-group-block(log0, lpt1) ∧ buf-ro-rw-mode(isbuf1, bleb1, lpt1, avol) ∧ lpt-leb-size(lpt1) ∧ lpt-ram-flash(lpt1, lpt0, log0) ∧ awbuf-inv(avol, bleb1) ∧ # lpt0 = # avol)

Heuristic symbolic execution applied rule assign right

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ buf-ro-rw-mode(boolvar, bleb, lpt, avol) → buf-ro-rw-mode(true, bleb, lpt, avol); (s)