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Proof step 4 from proof crash-neutral-check-page (previous step)

boolvar0 ↔ boolvar2, boolvar ↔ boolvar1, key = datakey(ino, pageno), key ∈ pcache ⊦ ⟨boolvar0 := true; boolvar := pcache[key].dirty⟩ true

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information