Parent State ID: 49
State Depth: 13
Action Taken: unstack(d, c)
Action Reasoning: To achieve the goal state, we need to separate block 'd' from block 'c' and place it on the table. This will allow us to move block 'c' to the table, setting up the final configuration.
State Description: Block 'a' is on the table and clear. Block 'c' is on top of block 'b' and clear. Block 'b' is on the table. Block 'd' is held in the hand. The hand is not empty.
Action Path: ['unstack(d, a)', 'put-down(d)', 'unstack(a, c)', 'put-down(a)', 'pick-up(d)', 'stack(d, c)', 'unstack(d, c)', 'stack(d, c)', 'unstack(d, c)', 'stack(d, c)', 'unstack(d, c)', 'stack(d, c)', 'unstack(d, c)']

INACTIVE REASON: deactivated because diagram generation failed or invalid action chosen: The action does not align with the goal state's configuration.
