A pair of BDD's representing a reactive property where if 'assumption', and
'guarantee' are given, then the specification is
"[]<>assumption -> []<>guarantee".
NOTE that when not using the sequential mode, the user should take
care of BDD synchronization issue - see the following link for more
details JTLVThread
Execute in sequential mode. NOTE that when not using the sequential mode, the user should take
care of BDD synchronization issue - see the following link for more
details JTLVThread