}
        return false;
      }

      for (int input_idx = 0, e = input_matchers->size(); input_idx < e;
           input_idx++) {
        if (!MatchAndExplainInput(node, input_idx, listener)) {
          return false;
        }
      }
    }

    std::vector<const Node*> control_deps;
    for (const Edge* e : node->in_edges()) {
      if (e->IsControlEdge()) {