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Proof step 6 from proof crash-neutral-fsync (previous step)

root.dir?, fids-cons(root, fs, ofh), posix-crash(root, fs, ofh, tree, fs0, ofh0) ⊦ ⟨choose err0 with pre-fsync(path, psynced0, err0, user, root, fs, ofh) in err := err0; psynced := ?⟩ psynced

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 7:
root.dir?, fids-cons(root, fs, ofh), posix-crash(root, fs, ofh, tree, fs0, ofh0) ⊦ ∃ err0. pre-fsync(path, psynced0, err0, user, root, fs, ofh) ∧ ⟨err := err0; psynced := ?⟩ psynced

Proof step 6 from proof crash-neutral-fsync (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information