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Proof step 23 from proof inv-seek (previous step)

of[fd] = mkfile(m, mode, m0), err = ESUCCESS, dom of < ino, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪afs_iget#(m, dirs, files, asynced; inode, err); if err = ESUCCESS then n := inode.size + n; if err = ESUCCESS then of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino)

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 24:
of[fd] = mkfile(m, mode, m0), err = ESUCCESS, ino = m, dom of < ino0, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of ⊦ ⟪if pre-iget(ino, dirs, files) then {{inode := getinode(ino, dirs, files); err := ESUCCESS} or fail#(; ; err)} else abort; if err = ESUCCESS then n := inode.size + n; if err = ESUCCESS then of[fd].pos := n⟫ (of-cons(of, dirs, files) ∧ dom of < ino0)

Rule argument

pos: right 1

Additional information

Used simplifier rules: afs_iget#(INO, DIRS, FILES, ASYNCED; INODE, ERR) {if pre-iget(INO, DIRS, FILES) then { {INODE := getinode(INO, DIRS, FILES); ERR := ESUCCESS} or fail#(; ; ERR)} else abort };