Currently, an event graph contains a fork cannot be dumped into dot files properly.
A fork like
will be dumped as
which cannot be recogonized by the dot_parser and be used as input graphs to a functional test.
This task includes the work of first investigating whether it will be worth to have the ability of dumping a graph with a fork to dot and have that dot file be usable to construct another parsec instance. And if so, carry out the implemenation work correspondently.