| # lpt1 = # avol, # lpt0 = # avol, isbuf2 ↔ pstate = readonly, isbuf ↔ pstate = readonly, lpt1[bleb1.leb] = mklp(m0, m5, lpf, m4), adr = adr0, bleb = bleb1, err = ESUCCESS, keyset(gch) = gc-heap(lpt1, log1), log = log1, lpt = lpt0, ns = ns0, remove-refsize0(istore0) = istore0, remove-refsize0(gstore0) = gstore0, elems log1 ∩ ginval = ∅, dom gstore0 ∪ elems log1 = dom gstore ∪ ginval, ginval < # avol, abs-gstore(avol, lpt1, gstore, ginval), abs-istore(avol, lpt1, istore), awbuf-inv(avol, bleb1), bin-heap-inv(gch, lpt1), buf-ro-rw-mode(isbuf2, bleb1, lpt1, avol), buf-ro-rw-mode(pstate = readonly, bleb1, lpt1, avol), bufs-log-only(bleb1, log1, lpt1), flash-lpt-cons(lpt0, istore0, gstore0), freelist-cons(lpt1, freelist), inv(istore0), inv(istore), inv(gstore0), inv(gstore \ ginval), log-group-block(log1, lpt1), lpt-free-unref(lpt1), lpt-free-unref(lpt0), lpt-leb-size(lpt1), lpt-leb-size(lpt0), lpt-ram-flash(lpt1, lpt0, log1), istore0 ⊑ istore, bleb1.isbuf? ∧ pstate ≠ readonly → 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), pstate = unbuffered → isbuf1, pstate.index? → pstate.lnum ∈ istore, pstate.journal? → log1 ≠ [] ∧ pstate.lnum = log1.last ∧ pstate.lnum ∈ gstore, pstate ≠ unbuffered ∧ pstate ≠ readonly → bleb1 = buffered(pstate.lnum), pstate = unbuffered → bleb1 = nobuffer, isbuf1 → synced(avol) ⊦ ⟨apersistence_sync#(adr0, istore, istore0, ginval, gstore, gstore0, log1, m, ns0; pstate, isbuf1; err0)⟩ ( abs-istore(avol, lpt1, istore) ∧ abs-gstore(avol, lpt1, gstore, ginval) ∧ ginval < # lpt1 ∧ (isbuf1 → synced(avol)) ∧ (pstate = unbuffered → bleb1 = nobuffer) ∧ (pstate = readonly ↔ isbuf2) ∧ (pstate ≠ unbuffered ∧ pstate ≠ readonly → bleb1 = buffered(pstate.lnum)) ∧ err = err0), pstate = readonly, bleb1.isbuf?, dups(log1) |
# lpt0 = # avol, # lpt1 = # avol, lpt1[nobuffer.leb] = mklp(m0, m5, lpf, m4), isbuf1, keyset(gch) = gc-heap(lpt1, log1), pstate = unbuffered, remove-refsize0(gstore0) = gstore0, remove-refsize0(istore0) = istore0, elems log1 ∩ ginval = ∅, dom gstore0 ∪ elems log1 = dom gstore ∪ ginval, ginval < # avol, abs-gstore(avol, lpt1, gstore, ginval), abs-istore(avol, lpt1, istore), awbuf-inv(avol, nobuffer), bin-heap-inv(gch, lpt1), flash-lpt-cons(lpt0, istore0, gstore0), freelist-cons(lpt1, freelist), inv(gstore \ ginval), inv(gstore0), inv(istore), inv(istore0), log-group-block(log1, lpt1), lpt-free-unref(lpt0), lpt-free-unref(lpt1), lpt-leb-size(lpt0), lpt-leb-size(lpt1), lpt-ram-flash(lpt1, lpt0, log1), synced(avol), istore0 ⊑ istore, ¬ dups(log1) ⊦ ⟨apersistence_sync#(adr0, istore, istore0, ginval, gstore, gstore0, log1, m, ns0; pstate, isbuf1; err0)⟩ (pstate = unbuffered ∧ ESUCCESS = err0)
Used simplifier rules: ⊦ ¬ unbuffered.index?; (s)% ⊦ ¬ unbuffered.journal?; (s)% ⊦ unbuffered ≠ readonly; (s)% ⊦ awbuf-inv(avol, nobuffer) → (synced(avol) ↔ true); (ss)% ⊦ nobuffer ≠ buffered(m); (s)% ⊦ ¬ nobuffer.isbuf?; (s)% ⊦ bufs-log-only(nobuffer, nx, lpt); (s)% ⊦ buf-ro-rw-mode(boolvar, nobuffer, lpt, avol); (s)% ⊦ bleb.isbuf? ↔ bleb ≠ nobuffer; (ss)