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

afs-cons(dirs, files), ino ∈ dirs ∨ ino ∈ files ⊦ ⟪if pre-iget(ino, dirs, files) then {{inode := getinode(ino, dirs, files); err := ESUCCESS} or fail#(; ; err)} else abort⟫ true

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 4:
afs-cons(dirs, files), ino ∈ dirs ∨ ino ∈ files ⊦ ⟪{inode := getinode(ino, dirs, files); err := ESUCCESS} or fail#(; ; err)⟫ true

Rule argument

pos: right 1

Additional information

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