Parent State ID: 8
State Depth: 3
Action Taken: board(p0, slow0-0, n1, 0, 1)
Action Reasoning: Passenger p5 should stay on fast1 to reach their goal floor of n2. Instead, we can board slow0-0 with p0 and move towards their destination, n0.
State Description: - Fast0 is at floor n0 with 0 passengers (max capacity 2).- Fast1 is at floor n2 with passenger p5 (max capacity 2).- Slow0-0 is at floor n1 with passenger p0 (max capacity 1).- Slow1-0 is at floor n3 with 0 passengers (max capacity 1).- Passenger p0 is aboard slow0-0.- Passenger p1 is on floor n1.- Passenger p2 is on floor n4.- Passenger p3 is on floor n4.- Passenger p4 is on floor n1.- Passenger p5 is aboard fast1.- Travel cost is 4 units.
Action Path: ['board(p5, fast1, n3, 0, 1)', 'move-down-fast(fast1, n3, n2)', 'board(p0, slow0-0, n1, 0, 1)']

successfully verified the action of new state 14 with the path: The last action `board(p0, slow0-0, n1, 0, 1)` is valid as all preconditions are met, and the effects are correctly updated in the current state. The action logically progresses towards the goal state. The natural language description, diagram encoding, and visualization of the current state are consistent and accurate given the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
