verify: ihello: check: deadlock: ok
verify: ihello: check: unreachable: ok
verify: ihello: check: livelock: ok
verify: ihello: check: deterministic: ok
verify: variant_immediately: check: deterministic: ok
verify: variant_immediately: check: illegal: ok
verify: variant_immediately: check: deadlock: fail
error: invariant violation in model variant_immediately
model: variant_immediately
<invariant>
verify: variant_immediately: check: unreachable: skip
verify: variant_immediately: check: livelock: ok
verify: variant_immediately: check: compliance: skip
