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Record 51a5e820b2f04a07833d01b87af96459

FAIL

Verdict and provenance first; raw prompt/response/reasoning below, collapsed.

✕FAILanswered "server room" · model Nemotron 3 Nano 30B

finish_reason: stop · tokens in/out: 347/1411 · cost: $0.000300 · latency: 13930.1 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1;adversarial=1;traps=final_true_state,last_mentioned_location,last_witnessed_by_anyone,most_frequent_location,query_agent_own_last_move;foil_score=5.0

trap kind(s) this world was seeded for: final_true_statelast_mentioned_locationlast_witnessed_by_anyonemost_frequent_locationquery_agent_own_last_move

lineage: 51a5e820

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Why did it fail? Nemotron 3 Ultra · live on Nebius Token Factory

Ultra reads the prompt, this answer, the verified correct answer and the difficulty settings, then explains the mistake. The verifier's own classification is shown next to it for comparison.

Prompt 1,109 chars · 347 tokens in
At 8:00, Silas moved the narrow box into the basement. At 8:01, Willa took the narrow box and placed it in the courtyard. At 8:01, he noticed this from across the room. At 8:02, he took the narrow box and placed it in the rooftop terrace. At 8:03, he moved the narrow box into the wine cellar. At 8:04, Willa moved the narrow box into the photo studio. At 8:04, he was nearby and saw this happen. At 8:05, he carried the narrow box to the utility closet. At 8:06, he carried the narrow box to the archive room. At 8:07, he carried the narrow box to the server room. At 8:08, Jasper moved the narrow box into the meditation room. At 8:08, Silas noticed this from across the room. At 8:09, Jasper brought the narrow box over to the server room. At 8:10, he carried the sturdy box to the loading dock. At 8:11, Willa brought the sturdy box over to the photo studio. At 8:12, she reorganized some papers on the desk. At 8:13, Jasper refilled a cup of coffee. At 8:14, Silas checked their email.

Where does Silas believe the narrow box is? Answer with only the location name (or 'unknown' if they have no belief).
Response 1,411 tokens out · finish: stop
server room
Reasoning 5,169 chars
Model reasoning
We need to parse timeline and determine where Silas believes the narrow box is. The question: "Where does Silas believe the narrow box is? Answer with only the location name (or 'unknown' if they have no belief)."

We need to infer Silas's belief about location of narrow box based on observations. Let's list events with times and actors.

- 8:00: Silas moved the narrow box into the basement.
- 8:01: Willa took the narrow box and placed it in the courtyard. At 8:01, he noticed this from across the room. Who is "he"? Probably Silas? It says "At 8:01, he noticed this from across the room." The antecedent likely Silas? Actually earlier "Silas moved the narrow box into the basement." Then "At 8:01, Willa took the narrow box and placed it in the courtyard. At 8:01, he noticed this from across the room." The "he" could be Silas noticing Willa's action. So Silas sees Willa moving the narrow box to courtyard at 8:01.

- 8:02: he took the narrow box and placed it in the rooftop terrace. Who is "he"? Likely Silas? It says "At 8:02, he took the narrow box and placed it in the rooftop terrace." The subject likely Silas (since previous "he noticed" refers to Silas). So Silas moves narrow box to rooftop terrace at 8:02.

- 8:03: he moved the narrow box into the wine cellar. Again "he" likely Silas moves narrow box to wine cellar at 8:03.

- 8:04: Willa moved the narrow box into the photo studio. At 8:04, he was nearby and saw this happen. Who is "he"? Probably Silas was nearby and saw Willa move narrow box into photo studio at 8:04.

- 8:05: he carried the narrow box to the utility closet. Likely Silas moves narrow box to utility closet at 8:05.

- 8:06: he carried the narrow box to the archive room. Silas moves narrow box to archive room at 8:06.

- 8:07: he carried the narrow box to the server room. Silas moves narrow box to server room at 8:07.

- 8:08: Jasper moved the narrow box into the meditation room. At 8:08, Silas noticed this from across the room. So Silas sees Jasper moving narrow box into meditation room at 8:08.

- 8:08: Jasper brought the narrow box over to the server room. At 8:08, Jasper brings narrow box to server room. Silas maybe also sees? It says "At 8:08, Jasper brought the narrow box over to the server room." No mention of Silas noticing, but likely he sees.

- 8:09: Jasper brought the narrow box over to the server room. Actually duplicate? Wait 8:08 already Jasper moved narrow box into meditation room, then "At 8:08, Jasper brought the narrow box over to the server room." Might be two actions at 8:08? Could be sequential: first moved into meditation room, then brought over to server room (maybe same time). Anyway Silas likely sees.

- 8:10: he carried the sturdy box to the loading dock. Who is "he"? Could be Jasper? Actually earlier "Jasper moved the narrow box...". At 8:10, "he carried the sturdy box to the loading dock." The subject likely Jasper (since previous mention of Jasper). So Jasper moves sturdy box to loading dock at 8:10.

- 8:11: Willa brought the sturdy box over to the photo studio. So Willa moves sturdy box to photo studio at 8:11.

- 8:12: she reorganized some papers on the desk. (no location specified)

- 8:13: Jasper refilled a cup of coffee.

- 8:14: Silas checked their email.

We need to determine where Silas believes the narrow box is. Silas has observed many movements. He may have a belief about its location based on his observations up to 8:14? The question likely expects that Silas believes the narrow box is in the server room? Let's think.

Silas's perspective: He moved narrow box to basement at 8:00. Then at 8:01 he saw Willa take it to courtyard. At 8:02 he took it to rooftop terrace. At 8:03 he moved it to wine cellar. At 8:04 he saw Willa move it to photo studio. At 8:05 he carried it to utility closet. At 8:06 he carried it to archive room. At 8:07 he carried it to server room. At 8:08 he saw Jasper move it into meditation room, then bring it to server room. So by 8:08, Silas has seen the narrow box being moved to server room (by himself at 8:07, and also by Jasper at 8:08). Then at 8:10, Jasper moves sturdy box to loading dock; at 8:11 Willa moves sturdy box to photo studio. No further mention of narrow box after 8:08. So Silas's last known location of narrow box is server room (he carried it there at 8:07, and also saw Jasper bring it there at 8:08). He may still believe it's there unless he saw it moved elsewhere after that. He didn't see any further movement of narrow box after 8:08. So his belief likely is that the narrow box is in the server room.

But we must consider that at 8:08, Jasper moved narrow box into meditation room, then brought it over to server room. So the final location at 8:08 is server room. Silas noticed this from across the room. So he sees it being placed in server room. He may think it's there. He later (8:14) checks email, but no further movement observed. So his belief is server room.

Thus answer: server room. However the question: "Where does Silas believe the narrow box is? Answer with only the location name (or 'unknown' if they have no belief)." So we output "server room". Ensure only that phrase.
Realized dims 7
dimvalue
context_length15.0
coreference1.0
distractors2.0
entity_state10.0
foil_divergence5.0
temporal0.0
witness_gap1.0
Latent params 6
paramvalue
chain_length10.0
coref_pressure0.0
distractor_events2.0
filler_events2.0
scramble0.0
witness_cutoff0.0