Parent State ID: 155
State Depth: 16
Action Taken: board(p3, fast1, n4, 0, 1)
Action Reasoning: We should board passenger p3 onto fast1 at floor 4 to quickly bring them to floor 0, as this aligns with their destination and utilizes the available capacity of the elevator.
State Description: - fast0: Fast elevator at floor 3 (n3), 0/2 passengers, empty.- fast1: Fast elevator at floor 4 (n4) with passenger p3 on board, 1/2 passengers.- slow0-0: Slow elevator at floor 0 (n0) with passenger p0 on board, 1/1 passengers, full.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On board slow0-0 at floor 0 (n0).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On board fast1 at floor 4 (n4).- p4: On floor 1 (n1).- p5: On floor 2 (n2).
Action Path: ['board(p5, fast1, n3, 0, 1)', 'move-down-fast(fast1, n3, n2)', 'move-up-fast(fast0, n0, n1)', 'board(p1, fast0, n1, 0, 1)', 'move-up-fast(fast0, n1, n3)', 'leave(p1, fast0, n3, 1, 0)', 'leave(p5, fast1, n2, 1, 0)', 'move-up-fast(fast1, n2, n4)', 'board(p2, fast1, n4, 0, 1)', 'move-down-fast(fast1, n4, n2)', 'leave(p2, fast1, n2, 1, 0)', 'move-up-fast(fast1, n2, n4)', 'move-down-fast(fast1, n4, n0)', 'board(p0, slow0-0, n1, 0, 1)', 'move-down-slow(slow0-0, n1, n0)', 'board(p3, fast1, n4, 0, 1)']

successfully verified the action of new state 167 with the path: The action `board(p3, fast1, n4, 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, and the natural language description and visualization are consistent with the sequence of actions taken.

INACTIVE REASON: Pruned in beam search
