Parent State ID: 68
State Depth: 9
Action Taken: move-up-fast(fast1, n2, n4)
Action Reasoning: Fast1 is currently at floor 2 with no passengers. We should move it up to floor 4 to pick up passengers p2 and p3 so they can be transported to their destinations.
State Description: - fast0: Fast elevator at floor 1 (n1), 0/2 passengers, empty.- fast1: Fast elevator now at floor 4 (n4), 0/2 passengers, empty.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers.- p0: On floor 1 (n1).- p1: On floor 3 (n3).- p2: On floor 4 (n4).- p3: On 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-down-fast(fast0, n3, n1)', 'move-up-fast(fast1, n2, n4)']

successfully verified the action of new state 84 with the path: The last action `move-up-fast(fast1, n2, n4)` is valid as all preconditions are satisfied, and the effects are correctly reflected in the current state. The natural language description, diagram encoding, and visualization of the current state are accurate and consistent with the sequence of actions taken. The action logically progresses towards achieving the goal state.

INACTIVE REASON: Pruned in beam search
