dtmc

module msg_delivery

state : [0..3] init 0;
// s = 0 -> start, s=1 -> try, s=2 -> lost, s=3 -> delivered

[] state = 0  -> (state'=1);
[] state = 1 -> 1/10 : (state'=2) + 9/10 : (state'=3);
[] state = 2 -> (state'=1);
[] state = 3 -> (state'=0);

endmodule