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Proof step 33 from proof inv-mkdir (previous step)

dent = negdentry((q + str ').last), err = EACCESS, err0 = ESUCCESS, err1 = ESUCCESS, ino = ino0, inode = getinode(ino, dirs, files), inode.directory, afs-cons(dirs, files), ispath(q, ROOT_INO, ino0, 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_check_commit#(dirs, files; err; asynced); if err = ESUCCESS then {dent := negdentry((q + str ').last); afs_mkdir#(md; inode, c_inode, dent, err, dirs, files; asynced)}⟫ (of-cons(of, dirs, files) ∧ afs-cons(dirs, files)), q + str ' = ε

Heuristic symbolic execution applied rule if negative right

And obtained the following new goals

Proof step 34:
dent = negdentry((q + str ').last), err = EACCESS, err0 = ESUCCESS, err1 = ESUCCESS, ino = ino0, inode = getinode(ino, dirs, files), inode.directory, afs-cons(dirs, files), ispath(q, ROOT_INO, ino0, 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 {dent := negdentry((q + str ').last); afs_mkdir#(md; inode, c_inode, dent, err, dirs, files; asynced)}⟫ (of-cons(of, dirs, files) ∧ afs-cons(dirs, files)), q + str ' = ε

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ ESUCCESS ≠ EACCESS; (s)