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Proof step 56 from proof inv-unlink (previous step)

isdir ↔ false, isrename ↔ false, isdir1 ↔ isrename0, isdir0 ↔ isdir1, dent = negdentry(str), err = EISDIR, err0 = ESUCCESS, err1 = ESUCCESS, err2 = EACCESS, ino = ino1, inode = getinode(ino, dirs, files), ¬ isdir, isdir0, ¬ isrename0, inode.directory, dom of < ino0, afs-cons(dirs, files), ispath(q, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, q, ROOT_INO, dirs, files), ¬ px(user, inode.meta) ∨ ¬ pw(user, inode.meta) ⊦ ⟪skip; if err = ESUCCESS then {afs_unlink#(; inode, p_inode, dent, err, dirs, files; asynced); vfs_put_inode#(p_inode, of, asynced; err, dirs, files)}⟫ (of-cons(of, dirs, files) ∧ afs-cons(dirs, files))

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Proof step 57:
isdir0 ↔ isdir1, isdir1 ↔ isrename0, isrename ↔ false, isdir ↔ false, dent = negdentry(str), err = EISDIR, err0 = ESUCCESS, err1 = ESUCCESS, err2 = EACCESS, ino = ino1, inode = getinode(ino, dirs, files), ¬ isdir, isdir0, ¬ isrename0, inode.directory, dom of < ino0, afs-cons(dirs, files), ispath(q, ROOT_INO, ino1, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, q, ROOT_INO, dirs, files), ¬ px(user, inode.meta) ∨ ¬ pw(user, inode.meta) ⊦ ⟪if err = ESUCCESS then {afs_unlink#(; inode, p_inode, dent, err, dirs, files; asynced); vfs_put_inode#(p_inode, of, asynced; err, dirs, files)}⟫ (of-cons(of, dirs, files) ∧ afs-cons(dirs, files))

Proof step 56 from proof inv-unlink (previous step)

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Rule argument

Additional information