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Proof step 68 from proof inv-fsync (previous step)

⟨vfs_walk#(p, user, dirs, files, asynced; ino1, err)⟩ (ino1 = ino0 ∧ err = ESUCCESS), err = ESUCCESS, ino1 = ROOT_INO, afs-cons(dirs, files), ispath(p, ROOT_INO, ino0, dirs, files), of-cons(of, dirs, files), px-parent(user, p, ROOT_INO, dirs, files), ⌊err0⌋ , ino0 ∈ dirs ∨ ino0 ∈ files ⊦ ⟪err := err0; if err = ESUCCESS then if inode.directory then err := (inode.directory ⊃ EISDIR;ENOTDIR) else if ¬ pr(user, inode.meta) then err := EACCESS; if err = ESUCCESS then afs_fsync#(inode, isdir0, dirs, files; ; asynced, err); if err = ESUCCESS then afs_sync#(dirs, files; ; asynced, err)⟫ true

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 69:
⟨vfs_walk#(p, user, dirs, files, asynced; ino1, err1)⟩ (ino1 = ino0 ∧ err1 = ESUCCESS), err = err0, err1 = ESUCCESS, ino1 = ROOT_INO, afs-cons(dirs, files), ispath(p, ROOT_INO, ino0, dirs, files), of-cons(of, dirs, files), px-parent(user, p, ROOT_INO, dirs, files), ⌊err0⌋ , ino0 ∈ dirs ∨ ino0 ∈ files ⊦ ⟪if err = ESUCCESS then if inode.directory then err := (inode.directory ⊃ EISDIR;ENOTDIR) else if ¬ pr(user, inode.meta) then err := EACCESS; if err = ESUCCESS then afs_fsync#(inode, isdir0, dirs, files; ; asynced, err); if err = ESUCCESS then afs_sync#(dirs, files; ; asynced, err)⟫ true

Proof step 68 from proof inv-fsync (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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