Parent State ID: 74
State Depth: 11
Action Taken: stack(block_b, block_d)
Action Reasoning: To achieve the goal state, we need to move block A onto block B, block B onto block D, and block D onto block C. Currently, block B is not in the correct position, so the next step should be to place block B on block D, which gets it closer to its final position between blocks D and A.
State Description: Block A is on the table and clear. Block B is on block D and clear. Block C is on the table and not clear, with block D stacked on it. Block D is on block C and not clear, with block B stacked on it. The hand is empty.
Action Path: ['unstack(block_b, block_c)', 'stack(block_b, block_d)', 'unstack(block_b, block_d)', 'stack(block_b, block_d)', 'unstack(block_b, block_d)', 'stack(block_b, block_c)', 'unstack(block_b, block_c)', 'put-down(block_b)', 'pick-up(block_d)', 'stack(block_d, block_c)', 'stack(block_b, block_d)']

INACTIVE REASON: deactivated because diagram generation failed or invalid action chosen: The hand is not holding block B, violating the precondition for the stack action.
