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Proof step 2 from proof ubifs-parent-dir (previous step)

ubifs-cons(fs, ri, ro, fi, fo, log), dentrykey(ino, str) ∈ ri ⊦ fs[ri[inodekey(ino)]].directory

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ubifs-parent-in: ⊦ dentrykey(ino, str) ∈ ri ∧ ubifs-cons(fs, ri, ro, fi, fo, log) → inodekey(ino) ∈ ri;