candidate runtime error on det-small-yes: runtime error: exit status 2
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
main.getTreeID({0x1bf8c0, 0x0, 0x0}, 0xffffffffffffffff)
	/tmp/cf-worker-3880847811/main.go:96 +0xf4
main.main()
	/tmp/cf-worker-3880847811/main.go:156 +0x708

input:
1
4 2
2
1 2
2 3
1
1 2