The fuzzing target introduced in this commit attemps to assert
"collision safety". Formally, this is the property that:
matches(request, route) := request is matched to route
collides(route1, route2) := there is a a collision between routes
forall requests req. !exist routes r1, r2 s.t.
matches(req, r1) AND matches(req, r2) AND not collides(r1, r2)
Alternatively:
forall requests req, routes r1, r2.
matches(req, r1) AND matches(req, r2) => collides(r1, r2)
The target was run for 20 CPU hours without failure.
Sergio Benitez