probabilistic

module nw

	s : [0..3] init 0; // s is the label of the current node

	[] s=0 -> 0.5 : (s'=1) + 0.5 : (s'=2);
	[] s=1 -> (s'=3);
	[] s=2 -> (s'=3);
	[] s=3 -> (s'=3);
	
endmodule