| # lpt0 = # avol, # lpt = # avol, # buf1 = # buf, avol[m4] = mapped(buf0), buf = mkbuf(m2), err = err0, n = m2, m4 < # avol, abs-node(subarray(buf0, m3, m2), ind), awbuf-inv(avol, bleb), buf-ro-rw-mode(isbuf, bleb, lpt0, avol), bufs-log-only(bleb, log0, lpt0), lpt-free-unref(lpt), lpt-leb-size(lpt), lpt-ram-flash(lpt0, lpt, log0), range=(buf1, n, buf, n, # buf - n), m3 + m2 ≤ # buf0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err = ESUCCESS then decode_index_node#(0, m2, buf1; ind0; err)⟫ ((err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → ind = ind0)), err = ESUCCESS |
# buf1 = # buf, # lpt = # avol, # lpt0 = # avol, avol[m4] = mapped(buf0), buf = mkbuf(m2), err = err0, n = m2, m4 < # avol, abs-node(subarray(buf0, m3, m2), ind), awbuf-inv(avol, bleb), buf-ro-rw-mode(isbuf, bleb, lpt0, avol), bufs-log-only(bleb, log0, lpt0), lpt-free-unref(lpt), lpt-leb-size(lpt), lpt-ram-flash(lpt0, lpt, log0), range=(buf1, n, buf, n, # buf - n), m3 + m2 ≤ # buf0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪skip⟫ ((err = ESUCCESS ∨ ⌊err⌋ ) ∧ (err = ESUCCESS → ind = ind0)), err = ESUCCESS