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Proof step 9 from proof crash-neutral-sync (previous step)

root.dir?, fids-cons(root, fs, ofh), posix-crash(root, fs, ofh, tree, fs0, ofh0) ⊦ (⌊ESUCCESS⌋ ∨ ESUCCESS = ESUCCESS) ∧ ⟨err := ESUCCESS; psynced := err = ESUCCESS⟩ psynced

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 10:
root.dir?, fids-cons(root, fs, ofh), posix-crash(root, fs, ofh, tree, fs0, ofh0) ⊦ ⟨err := ESUCCESS; psynced := err = ESUCCESS⟩ psynced

Rule argument

Additional information

Used simplifier rules: ⊦ ¬ ⌊ESUCCESS⌋ ; (s)