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Proof step 28 from proof eq-io-iget (previous step)

⟨if pre-iget(ino, dirs, files) then {{inode := getinode(ino, dirs, files); err := ESUCCESS} or fail#(; ; err)} else abort⟩ (inode = p_inode ∧ err = err0), asynced ↔ asynced0, dirs = dirs1, files = files1, ino = ino0 ⊦ ino0 ∈ dirs1, ino0 ∈ files1

Heuristic symbolic execution applied rule if negative left

And obtained the following new goals

Proof step 29:
⟨abort⟩ (inode = p_inode ∧ err = err0), asynced ↔ asynced0, dirs = dirs1, files = files1, ino = ino0 ⊦ ino0 ∈ files1, ino0 ∈ dirs1

Rule argument

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)