Parent State ID: 49
State Depth: 7
Action Taken: (board p3 fast0 n4 0 1)
Action Reasoning: To move fast0 to floor 5 where passengers p2 and p3 need to reach, we first board p3 on fast0 at floor 4. This maximizes elevator efficiency by transporting multiple passengers simultaneously.
State Description: - **fast0**: At floor 4, 1/2 passengers with p3 onboard; ready to move to floor 5.- **fast1**: At floor 0, 2/2 passengers with p2 and p5 onboard; p5 at destination.- **slow0-0**: At floor 2, 1/1 passengers with p4 onboard heading to floor 4.- **p0**: On floor 4, waiting for transport.- **p1**: On floor 1, at destination.- **p2**: Onboard fast1 at floor 0, at destination.- **p3**: Onboard fast0 at floor 4, heading to floor 5.- **p4**: Onboard slow0-0 at floor 2, heading to floor 4.- **p5**: Onboard fast1 at floor 0, at destination.- **p6**: On floor 2, at destination.
Action Path: ['(board p2 fast1 n3 0 1)', '(move-up-fast fast1 n3 n5)', '(board p5 fast1 n5 1 2)', '(move-up-fast fast0 n0 n4)', '(move-down-fast fast1 n5 n0)', '(board p4 slow0-0 n2 0 1)', '(board p3 fast0 n4 0 1)']

successfully verified the action of new state 64 with the path: The last action `(board p3 fast0 n4 0 1)` is valid because all preconditions are met: `fast0` is at floor `n4`, `p3` is at floor `n4`, and `fast0` has the capacity to board `p3`. The effects are correctly reflected in the current state, and the action logically progresses towards the goal state. The natural language description, diagram encoding, and visualization of the current state are all accurate and consistent with the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
