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Proof step 87 from proof refine-lookup (previous step)

err = err0, afs-cons(cache_dirs, cache_files), afs-cons(cache_dirs, (cache_files ⊕ cache_pcache) ⊕ cache_icache), dcache-cons(cache_dcache, cache_dirs, cache_files), icache-cons(cache_icache, cache_dirs, cache_files), pcache-cons(cache_pcache, cache_dirs, cache_files), synced(cache_dirs, cache_icache, cache_pcache), p_ino ∈ cache_dirs, ⌊err0⌋ , cache_sync → synced(cache_files, cache_icache, cache_pcache), links(p_ino, cache_dirs) ≠ ∅ ∨ p_ino = ROOT_INO ⊦ ⟪dent := dent0; if err = ESUCCESS then dcache_set#(p_ino, dent0.name, dent; err, cache_dcache)⟫ ⟨afs_lookup#(p_ino, cache_dirs, (cache_files ⊕ cache_pcache) ⊕ cache_icache, cache_asynced; dent0, err1)⟩ (dent = dent0 ∧ err = err1), dentrykey(p_ino, dent0.name) ∈ cache_dcache

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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