time,counter_out[3],counter_out[2],counter_out[1],counter_out[0],overflow_out
10,x,x,x,x,x
30,0,0,0,0,0
50,0,0,0,1,0
70,0,0,1,1,0
90,0,1,0,1,0
110,0,1,1,1,0
130,1,0,0,1,0
150,1,0,1,1,0
170,1,1,0,1,0
190,1,1,1,1,0
210,0,0,0,1,1
230,0,0,1,1,1
250,0,1,0,1,1
