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Proof step 19 from proof refine-deallocate-gnd (previous step)

syn ↔ true, fi = fi1, fi0 = fi2, ginval = ginval3, ginval0 = ginval2, ginval1 = ginval3, gstore = gstore3, gstore0 = gstore2, gstore1 = gstore3, maxino = maxino0, nx = nx0, remove-refsize0(gstore2) = gstore2, remove-refsize0(istore1) = istore1, elems nx0 ∩ ginval3 = ∅, dom gstore2 ∪ elems nx0 = dom gstore3 ∪ ginval3, btree-inv(rp, adr, istore2, istore1, zh, fi2, fi1), inv(gstore3 \ ginval3), inv(gstore2), inv(istore2), inv(istore1), ri-inj(fi2), ri-inj(fi1), n ∈ gstore3, n ∈ gstore2, istore1 ⊑ istore2, pstate.journal? → nx0 ≠ [] ∧ pstate.lnum = nx0.last ∧ pstate.lnum ∈ gstore3, pstate.index? → pstate.lnum ∈ istore2 ⊦ ⟨fail_or_success#(; ; err); if err = ESUCCESS then gstore := gstore -- n, ginval := ginval ++ n⟩ (ginval = ginval1 ++ n ∧ gstore = gstore1 -- n ∧ ESUCCESS = err), dups(nx0), n ∈ nx0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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