Initial point: 1
Final point: 1
1/t2 -triggered off []
1/t1 -triggered off []
1/stop1 -triggered off ['1/t1', '1/t2']
1/t4 -triggered off ['1/stop1']
1/t3 -triggered off ['1/stop1']
1/stop2 -triggered off ['1/t3', '1/t4']
1/shutdown -triggered off ['1/stop2']
