Parent State ID: 211
State Depth: 22
Action Taken: move-up-slow(slow0-0, n2, n3)
Action Reasoning: Passenger p4 needs to be on floor 3. Since slow0-0 is currently full and on floor 2, the best action is to move it up to floor 3 to drop off p4.
State Description: - fast0: On floor 3 (n3), 0/2 passengers, empty.- fast1: On floor 0 (n0), 0/2 passengers, empty.- slow0-0: On floor 3 (n3), 1/1 passenger, contains p4.- slow1-0: On floor 3 (n3), 0/1 passengers, empty.- p0: On floor 0 (n0).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On floor 0 (n0).- p4: On board slow0-0 at floor 3 (n3).- 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)', 'board(p3, fast1, n4, 0, 1)', 'move-down-fast(fast1, n4, n0)', 'leave(p3, fast1, n0, 1, 0)', 'board(p0, slow0-0, n1, 0, 1)', 'move-down-slow(slow0-0, n1, n0)', 'leave(p0, slow0-0, n0, 1, 0)', 'move-up-slow(slow0-0, n0, n1)', 'board(p4, slow0-0, n1, 0, 1)', 'move-up-slow(slow0-0, n1, n2)', 'move-up-slow(slow0-0, n2, n3)']

INACTIVE REASON: action path invalid: The action `move-up-slow(slow0-0, n2, n3)` is invalid because `slow0-0` cannot reach floor `n3` from `n2`. This violates the precondition that the elevator must be able to reach the destination floor. The current state's natural language description and visualization are accurate, but the action itself is not valid.
