process P1 
{
  state a,b;
  init a;
  trans	a->b {guard true;},
	b->b {guard true;};
}

process P2
{
  state a,b;
  init a;
  trans	a->b {guard true;},
	b->b {guard true;};
}

process Pltl 
{
  state qa,qb,qc;
  init qa;
  accept qb;
  trans qa->qb {guard true;};
//  	qb->qc {guard true;};
//  	qc->qc {guard true;};
}

system async property Pltl;
