verify: ihello: check: deadlock: ok
verify: ihello: check: unreachable: ok
verify: ihello: check: livelock: ok
verify: ihello: check: deterministic: ok
verify: illegal_requires_out: check: deterministic: ok
verify: illegal_requires_out: check: illegal: fail
error: illegal action performed in model illegal_requires_out
model: illegal_requires_out
w.world
<illegal>
verify: illegal_requires_out: check: deadlock: ok
verify: illegal_requires_out: check: unreachable: skip
verify: illegal_requires_out: check: livelock: ok
verify: illegal_requires_out: check: compliance: skip
