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Proof step 32 from proof inv-readdir (previous step)

isdir ↔ true, inode.directory ↔ isdir, err = ESUCCESS, err0 = ESUCCESS, ino = ino0, inode = getinode(ino, dirs, files), mode = MODE_R, afs-cons(dirs, files), ispath(p0, ROOT_INO, ino0, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, p0, ROOT_INO, dirs, files) ⊦ ⟪skip; if err = ESUCCESS then afs_readdir#(inode, dirs, files, asynced; strings, err)⟫ true, (mode = MODE_R ∨ mode = MODE_RW) ∧ ¬ pr(user, inode.meta), (mode = MODE_W ∨ mode = MODE_RW) ∧ ¬ pw(user, inode.meta)

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Proof step 33:
inode.directory ↔ isdir, isdir ↔ true, err = ESUCCESS, err0 = ESUCCESS, ino = ino0, inode = getinode(ino, dirs, files), mode = MODE_R, afs-cons(dirs, files), ispath(p0, ROOT_INO, ino0, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, p0, ROOT_INO, dirs, files) ⊦ ⟪if err = ESUCCESS then afs_readdir#(inode, dirs, files, asynced; strings, err)⟫ true, (mode = MODE_W ∨ mode = MODE_RW) ∧ ¬ pw(user, inode.meta), (mode = MODE_R ∨ mode = MODE_RW) ∧ ¬ pr(user, inode.meta)

Proof step 32 from proof inv-readdir (previous step)

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Rule argument

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