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Proof step 3 from proof inv-readdir (previous step)

strings0 = strings, afs-cons(dirs, files), inode.ino ∈ dirs ⊦ ⟪if pre-readdir(inode.ino, dirs, files) then {{strings0 := dom dirs[inode.ino].entries; err := ESUCCESS} or {choose strings with true in strings0 := strings; fail#(; ; err)}} else abort⟫ true

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 4:
strings0 = strings, afs-cons(dirs, files), inode.ino ∈ dirs ⊦ ⟪{strings0 := dom dirs[inode.ino].entries; err := ESUCCESS} or {choose strings with true in strings0 := strings; fail#(; ; err)}⟫ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ pre-readdir(ino, dirs, files) ↔ valid-dir-ino(ino, dirs, files); (s)% ⊦ valid-dir-ino(ino, dirs, files) ↔ ino ∈ dirs; (s)