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Proof step 102 from proof refine-allocate-gnd (previous step)

# lpt0 = # avol0, # lpt = # avol0, lpt[n0] = mklp(0, m1, LP_FREE, m4), keyset(gch) = gc-heap(lpt, log1), remove-refsize0(istore1) = istore1, remove-refsize0(gstore0) = gstore0, elems log1 ∩ ginval = ∅, dom gstore0 ∪ elems log1 = dom gstore ∪ ginval, pstate ≠ readonly, 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(istore1), inv(istore2), 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), istore1 ⊑ istore2, ¬ dups(log1), pstate ≠ unbuffered → bleb = buffered(pstate.lnum), pstate.index? → pstate.lnum ∈ istore2, pstate.journal? → log1 ≠ [] ∧ pstate.lnum = log1.last ∧ pstate.lnum ∈ gstore, pstate = unbuffered → bleb = nobuffer ⊦ ⟨err := ESUCCESS; pstate0 := pstate; log := log1; if err = ESUCCESS then choose n with ¬ n ∈ gstore in gstore[n] := groupblock([], [], 0), log := log + n, ginval := ginval -- n, pstate := journal(n)⟩ ( abs-gstore(avol0[n0, mapped(mkbuf(0))], lpt[n0, mklp(0, 0, LP_GROUP_NODES, m4)], gstore, ginval) ∧ log = log1 + n0 ' ∧ ginval < # avol0 ∧ pstate ≠ unbuffered ∧ (pstate = readonly ↔ pstate0 = readonly) ∧ (pstate ≠ readonly → n0 = pstate.lnum) ∧ ESUCCESS = err)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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