Termination condition(s) of function select_tree_node?

[thuanpv]

Can you please elaborate on the termination condition(s) of function select_tree_node? I refer to this implemetation https://github.com/Alan32Liu/AFLNet_MCTS/blob/2945f1097223fab28ff81404f55121ba9d4d89be/MCTS/TreeNode.c#L399

[DonggeLiu]

It terminates when a golden node is selected.
There are two kinds of nodes in the tree: White nodes correspond to states (with a response code, inputs, etc.); Golden nodes represent the option of running fuzzing from its parent state.
This function selects a golden node, then select_seed selects an input prefix that reaches the parent of the golden node.