Parent State ID: 180
State Depth: 20
Action Taken: board(p4, fast0, n1, 0, 1)
Action Reasoning: Passenger p4 needs to reach floor 3. Fast elevator fast0 is already at floor 1 with no passengers, so boarding p4 onto fast0 will efficiently move p4 closer to their goal.
State Description: - Elevator fast0 is at floor 1 (n1), containing passenger p4, capacity 1/2.- Elevator fast1 is at floor 3 (n3), empty, capacity 2.- Elevator slow0-0 is at floor 0 (n0), empty, capacity 1.- Elevator slow1-0 is at floor 2 (n2), empty, capacity 1.- Passenger p0 is at floor 0 (n0).- Passenger p1 is at floor 3 (n3).- Passenger p2 is at floor 2 (n2).- Passenger p3 is at floor 0 (n0).- Passenger p4 is on board fast0.- Passenger p5 is at 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)', 'board(p3, fast0, n4, 0, 1)', 'move-down-fast(fast1, n2, n1)', 'move-down-fast(fast0, n4, n0)', 'leave(p3, fast0, n0, 1, 0)', 'board(p1, fast1, n1, 0, 1)', 'move-up-fast(fast1, n1, n3)', 'leave(p1, fast1, n3, 1, 0)', 'move-up-fast(fast0, n0, n1)', 'board(p4, fast0, n1, 0, 1)']

successfully verified the action of new state 189 with the path: The last action `board(p4, fast0, n1, 0, 1)` is valid as all preconditions are met, and the effects are correctly updated in the current state. The natural language description and visualization of the current state are consistent with the sequence of actions taken from the initial state.

INACTIVE REASON: Pruned in beam search
