Parent State ID: 139
State Depth: 16
Action Taken: move-up-fast(fast0, n3, n4)
Action Reasoning: Passenger p3 is on floor 4 and needs to go to floor 0. Fast elevator fast0 is available on floor 3 and can efficiently move to floor 4 to pick up p3. This action minimizes waiting time and utilizes the fast elevator's capability to make longer jumps.
State Description: - Elevator fast0 is now at floor 4 (n4), empty, capacity 2.- Elevator fast1 remains at floor 2 (n2), empty, capacity 2.- Elevator slow0-0 remains at floor 0 (n0), empty, capacity 1.- Elevator slow1-0 remains at floor 2 (n2), empty, capacity 1.- Passenger p0 is on floor 0 (n0).- Passenger p1 is on floor 1 (n1).- Passenger p2 is on floor 2 (n2).- Passenger p3 is on floor 4 (n4).- Passenger p4 is on floor 3 (n3).- Passenger p5 is on floor 2 (n2).
Action Path: ['board(p0, slow0-0, n1, 0, 1)', 'move-down-slow(slow0-0, n1, n0)', 'leave(p0, slow0-0, n0, 1, 0)', 'board(p5, slow1-0, n3, 0, 1)', 'move-down-slow(slow1-0, n3, n2)', 'leave(p5, slow1-0, n2, 1, 0)', 'move-up-fast(fast1, n3, n4)', 'board(p2, fast1, n4, 0, 1)', 'move-down-fast(fast1, n4, n2)', 'leave(p2, fast1, n2, 1, 0)', 'move-up-fast(fast0, n0, n4)', 'move-down-fast(fast0, n4, n1)', 'board(p4, fast0, n1, 0, 1)', 'move-up-fast(fast0, n1, n3)', 'leave(p4, fast0, n3, 1, 0)', 'move-up-fast(fast0, n3, n4)']

successfully verified the action of new state 149 with the path: The last action `move-up-fast(fast0, n3, n4)` is valid as all preconditions are satisfied, and the effects are correctly updated in the current state. The current state's natural language description, diagram encoding, and visualization accurately reflect the sequence of actions taken from the initial state.

INACTIVE REASON: Pruned in beam search
