| # lpt0 = # avol0, # lpt = # avol0, lpt[n0] = mklp(0, m3, LP_FREE, m2), keyset(gch) = gc-heap(lpt, log1), log0 = log1, pstate0 = pstate, remove-refsize0(istore0) = istore0, remove-refsize0(gstore0) = gstore0, elems log1 ∩ ginval = ∅, dom gstore0 ∪ elems log1 = dom gstore ∪ ginval, pstate ≠ readonly, ginval < # avol0, n0 < # avol0, abs-gstore(avol0, lpt, gstore, ginval), abs-istore(avol0, lpt, istore), awbuf-inv(avol0, bleb), bin-heap-inv(gch, lpt), buf-ro-rw-mode(false, bleb, lpt, avol0), bufs-log-only(bleb, log1, lpt), flash-lpt-cons(lpt0, istore0, gstore0), freelist-cons(lpt, n0 ' + nx0), inv(istore0), inv(istore), inv(gstore0), inv(gstore \ ginval), log-group-block(log1, lpt), lpt-free-unref(lpt0), lpt-free-unref(lpt), lpt-leb-size(lpt0), lpt-leb-size(lpt), lpt-ram-flash(lpt, lpt0, log1), synced(avol0), istore0 ⊑ istore, ⌊err0⌋ , ¬ dups(log1), pstate ≠ unbuffered → bleb = buffered(pstate.lnum), pstate.index? → pstate.lnum ∈ istore, pstate.journal? → log1 ≠ [] ∧ pstate.lnum = log1.last ∧ pstate.lnum ∈ gstore, pstate = unbuffered → bleb = nobuffer ⊦ ⟨apersistence_allocate_gnd#(adr0, istore, istore0, gstore0, m, ns0, true; ginval, gstore, log1, pstate; err1)⟩ ( abs-gstore(avol0, lpt, gstore, ginval) ∧ log1 = log0 ∧ ginval < # avol0 ∧ (pstate = unbuffered → bleb = nobuffer) ∧ (pstate = readonly ↔ pstate0 = readonly) ∧ (pstate ≠ unbuffered ∧ pstate ≠ readonly → bleb = buffered(pstate.lnum)) ∧ err0 = err1) |
# lpt = # avol0, # lpt0 = # avol0, isbuf ↔ true, lpt[n0] = mklp(0, m3, LP_FREE, m2), adr = adr0, istore = istore1, istore0 = istore2, keyset(gch) = gc-heap(lpt, log1), log = log1, log0 = log1, maxino = m, ns = ns0, pstate0 = pstate, remove-refsize0(gstore0) = gstore0, remove-refsize0(istore1) = istore1, elems log1 ∩ ginval = ∅, dom gstore0 ∪ elems log1 = dom gstore ∪ ginval, n0 < # avol0, ginval < # avol0, abs-gstore(avol0, lpt, gstore, ginval), abs-istore(avol0, lpt, istore2), awbuf-inv(avol0, bleb), bin-heap-inv(gch, lpt), buf-ro-rw-mode(false, bleb, lpt, avol0), bufs-log-only(bleb, log1, lpt), flash-lpt-cons(lpt0, istore1, gstore0), freelist-cons(lpt, n0 ' + nx0), inv(gstore \ ginval), inv(gstore0), inv(istore2), inv(istore1), log-group-block(log1, lpt), lpt-free-unref(lpt), lpt-free-unref(lpt0), lpt-leb-size(lpt), lpt-leb-size(lpt0), lpt-ram-flash(lpt, lpt0, log1), synced(avol0), istore1 ⊑ istore2, ⌊err0⌋ , pstate = unbuffered → bleb = nobuffer, pstate.journal? → log1 ≠ [] ∧ pstate.lnum = log1.last ∧ pstate.lnum ∈ gstore, pstate.index? → pstate.lnum ∈ istore2, pstate ≠ unbuffered → bleb = buffered(pstate.lnum) ⊦ ⟨if isbuf then if pstate = readonly then err := EROFS else {fail_or_success#(; ; err); if err = ESUCCESS then choose n with ¬ n ∈ gstore in gstore[n] := groupblock([], [], 0), log := log + n, ginval := ginval -- n, pstate := journal(n)} else abort⟩ ( abs-gstore(avol0, lpt, gstore, ginval) ∧ log = log0 ∧ ginval < # avol0 ∧ (pstate = unbuffered → bleb = nobuffer) ∧ (pstate = readonly ↔ pstate0 = readonly) ∧ (pstate ≠ unbuffered ∧ pstate ≠ readonly → bleb = buffered(pstate.lnum)) ∧ err0 = err), pstate = readonly, dups(log1)
Used simplifier rules: apersistence_allocate_gnd# (ROOTADR, ISTORE, ISTORE0, GSTORE0, MAXINO, OS, PSYNCED ; GINVAL, GSTORE, NL, PSTATE ; ERR ) {if PSYNCED then if PSTATE = readonly then ERR := EROFS else {fail_or_success#(; ; ERR); if ERR = ESUCCESS then choose N with ¬ N ∈ GSTORE in GSTORE[N] := groupblock([], [], 0), NL := NL + N, GINVAL := GINVAL -- N, PSTATE := journal(N)} else abort };