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Proof step 216 from proof inv-unlink (previous step)

files[entries[str]] = mkfile(m0, md, # links(entries[str], dirs), content), dirs[ino1] = mkdir(m, md1, # links(ino1, dirs), m2, entries), err = err0, p_inode = mkinode(entries[str], md, false, # links(entries[str], dirs), 0, m0), dom of < ino0, afs-cons(dirs, files), ispath(q, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), pw(user, md1), px(user, md1), px-parent(user, q, ROOT_INO, dirs, files), ino1 ∈ dirs, entries[str] ∈ files, str ∈ entries, ⌊err0⌋ , links(ino1, dirs) ≠ ∅ ∨ ino1 = ROOT_INO ⊦ ⟪skip⟫ (of-cons(of, dirs, files) ∧ afs-cons(dirs, files)), entries[str] ∈ dirs

Heuristic symbolic execution applied rule skip right

And closed the goal!

Rule argument

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