verify: I: check: deadlock: ok
verify: I: check: unreachable: ok
verify: I: check: livelock: ok
verify: I: check: deterministic: ok
verify: A: check: deterministic: ok
verify: A: check: illegal: ok
verify: A: check: deadlock: fail
error: deadlock in model A
model: A
p.hello
r1.hello
r1.return
r2.hello
r2.return
p.return
r2.back
r1.back
<deadlock>
verify: A: check: unreachable: skip
verify: A: check: livelock: ok
verify: A: check: compliance: skip
verify: B: check: deterministic: ok
verify: B: check: illegal: ok
verify: B: check: deadlock: fail
error: deadlock in model B
model: B
p.hello
p.return
<deadlock>
verify: B: check: unreachable: skip
verify: B: check: livelock: ok
verify: B: check: compliance: skip
