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Proof step 7 from proof crash-neutral-allocate-gnd (previous step)

ginval1 = ginval, gstore1 = crash(gstore, gstore0, ginval, nx), nx0 = nx, pstate = readonly, remove-refsize0(gstore0) = gstore0, remove-refsize0(istore1) = istore1, elems nx ∩ ginval = ∅, dom gstore0 ∪ elems nx = dom gstore ∪ ginval, inv(gstore \ ginval), inv(gstore0), inv(istore2), inv(istore1), istore1 ⊑ istore2, pstate.journal? → nx ≠ [] ∧ pstate.lnum = nx.last ∧ pstate.lnum ∈ gstore, pstate.index? → pstate.lnum ∈ istore2 ⊦ ⟨err := EROFS⟩ (ginval1 = ginval ∧ gstore1 = crash(gstore, gstore0, ginval, nx) ∧ nx0 = nx), dups(nx)

Heuristic symbolic execution applied rule assign right

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ ¬ readonly.journal?; (s)% ⊦ ¬ readonly.index?; (s)