t000__ep007__blocks
- suite / variant:
/ - instruction: Stack the yellow block on the wooden block
- success: False
- control steps: 342 (6.8s at 50 Hz)
- policy inferences: 60 (replan_steps=6)
- video:
blocks/ep007/rollout.mp4 - features:
60prefix tensors (prefix; model=``)
Semantic timeline
| seconds | control_step | policy_step | phrase |
|---|---|---|---|
| 0.0–3.0 | 0–151 | 0–25 | reaching for yellow block |
| 3.0–6.0 | 152–303 | 25–50 | attempting grasp and lifting empty |
| 6.0–6.8 | 304–341 | 50–56 | hovering empty gripper |
Failure
- yes
- onset type: obvious_mistake
- onset: 3.5841584158415842 s (00:03.6)
- frame / control_step: 181 (policy_step=30, chunk_index=1)
- coarse onset: 3.5 s (refined=True)
- mode: grasp_failure
- reason: The robot attempted to grasp the yellow block, but the gripper closed off-center, causing the block to slip out and remain on the table. Summary: failed grasp on yellow block; object slipped
- recovery: Re-align the gripper directly over the yellow block, close the fingers firmly to secure the grasp, and lift it to stack on top of the wooden block. Summary: re-align gripper; regrasp yellow block; stack on wooden block
- prevention: Position the gripper accurately over the center of the yellow block before closing the fingers to establish a stable hold. Summary: center gripper; secure hold on block
- justification: Around 3.5 seconds into the rollout, the robot closes its gripper on the yellow block, but fails to establish a grasp. The block slips out as the arm rises, leaving the gripper empty for the remainder of the trajectory.