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Proof step 4 from proof inv-readdir (previous step)

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

Heuristic conditional right split applied rule or split right

And obtained the following new goals

Proof step 5:
strings0 = strings, afs-cons(dirs, files), inode.ino ∈ dirs ⊦ ⟪strings0 := dom dirs[inode.ino].entries; err := ESUCCESS⟫ true
Proof step 7:
strings0 = strings, afs-cons(dirs, files), inode.ino ∈ dirs ⊦ ⟪choose strings with true in strings0 := strings; fail#(; ; err)⟫ true

Proof step 4 from proof inv-readdir (previous step)

Heuristic conditional right split applied rule or split right

And obtained the following new goals

Rule argument

Additional information