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Proof step 227 from proof refine-mkdir (previous step)

cache_dirs[m] = mkdir(m0, md1, # links(m, cache_dirs), m2, entries), 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), m ∈ cache_dirs, ⌊err0⌋ , cache_sync → synced(cache_files, cache_icache, cache_pcache), links(m, cache_dirs) ≠ ∅ ∨ m = ROOT_INO ⊦ ⟪asynced := ?; p_inode := mkinode(m, md0, true, # links(m, cache_dirs), m2, m0); dent := negdentry(str); c_inode := p_inode1; afs_files := (cache_files ⊕ cache_pcache) ⊕ cache_icache; if err = ESUCCESS then let asynced = false in {icache_set#(p_inode, asynced; err, cache_icache); icache_set#(c_inode, asynced; err, cache_icache); dcache_set#(p_inode.ino, dent.name, dent; err, cache_dcache)}⟫ ⟨dent0 := negdentry(str); p_inode0 := mkinode(m, md0, true, # links(m, cache_dirs), m2, m0); cache_dirs0 := cache_dirs; afs_mkdir#(md; p_inode0, p_inode1, dent0, err1, cache_dirs, afs_files; afs_asynced)⟩ ( cache_dirs = cache_dirs0 ∧ afs_files = (cache_files ⊕ cache_pcache) ⊕ cache_icache ∧ (afs_asynced ↔ asynced) ∧ p_inode = p_inode0 ∧ c_inode = p_inode1 ∧ dent = dent0 ∧ err = err1), str ∈ entries

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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