Parent State ID: 116
State Depth: 12
Action Taken: board(p4, slow0-0, n1, 0, 1)
Action Reasoning: To move towards the goal state, I will board passenger p4 onto slow0-0 at floor 1. This aligns with moving p4 to their destination on floor 3 using the appropriate elevator.
State Description: - fast0: Fast elevator at floor 3 (n3), 0/2 passengers, empty.- fast1: Fast elevator at floor 0 (n0), 0/2 passengers, empty.- slow0-0: Slow elevator at floor 1 (n1), 1/1 passenger (occupied by p4).- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On floor 1 (n1).- p1: On floor 3 (n3), not on fast0.- p2: On floor 4 (n4).- p3: Moved to floor 0 (n0), preparing to leave elevator.- p4: Onboard slow0-0 at 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)', 'move-down-fast(fast1, n4, n2)', 'move-up-fast(fast1, n2, n4)', 'move-down-fast(fast1, n4, n0)', 'board(p4, slow0-0, n1, 0, 1)']

successfully verified the action of new state 126 with the path: The last action `board(p4, slow0-0, n1, 0, 1)` is valid as all preconditions are satisfied, and the effects are correctly updated in the current state. The current state's description and visualization accurately reflect the sequence of actions taken, and all objects from the initial state are present. The action logically moves `p4` closer to its goal, making it a valid step towards achieving the goal state.

INACTIVE REASON: Pruned in beam search
