Record ec0b1e81f54e4b90bfb81297b6818f09

FAIL

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

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✕FAILanswered "unknown" · model gpt-oss-120b

finish_reason: stop · tokens in/out: 698/389 · cost: $0.000338 · latency: 13054.3 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: ec0b1e81

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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 2,257 chars · 698 tokens in

At 8:19, Cyrus carried the red wrench to the rooftop terrace. At 8:20, Ivo took the red wrench and placed it in the gym. At 8:21, he carried the red wrench to the south stairwell. At 8:22, Aria carried the red wrench to the lobby. At 8:23, Roman carried the red wrench to the security office. At 8:24, Tamsin took the red wrench and placed it in the cafeteria. At 8:26, he carried the red wrench to the security office. At 8:18, Cyrus moved the red wrench into the gym. At 8:27, Marcus moved the red wrench into the supply closet. At 8:28, Cyrus carried the red wrench to the courtyard. At 8:29, Tamsin took the red wrench and placed it in the security office. At 8:30, Jasper reorganized some papers on the desk. At 8:31, Roman refilled a cup of coffee. At 8:32, he checked their email. At 8:33, Cyrus checked their email. At 8:34, Jasper reorganized some papers on the desk. At 8:35, Ivo made a quick phone call. At 8:36, Marcus made a quick phone call. At 8:25, Ivo took the red wrench and placed it in the loading dock. At 8:00, Greta moved the bright folder into the gym. At 8:01, Roman carried the bright folder to the loading dock. At 8:02, Ivo carried the bright folder to the north stairwell. At 8:03, Jasper carried the bright folder to the courtyard. At 8:04, Aria moved the bright folder into the cafeteria. At 8:05, Greta took the bright folder and placed it in the south stairwell. At 8:06, Jasper brought the bright folder over to the gym. At 8:07, Marcus carried the bright folder to the security office. At 8:08, Roman moved the bright folder into the rooftop terrace. At 8:09, he brought the bright folder over to the west wing. At 8:10, Cyrus took the red wrench and placed it in the west wing. At 8:11, Greta moved the red wrench into the south stairwell. At 8:12, Tamsin brought the red wrench over to the security office. At 8:13, Roman carried the red wrench to the cafeteria. At 8:14, Cyrus carried the red wrench to the north stairwell. At 8:15, Marcus carried the red wrench to the courtyard. At 8:16, Roman carried the red wrench to the lobby. At 8:17, he brought the red wrench over to the security office.

Where does Tamsin believe the bright folder is? Answer with only the location name (or 'unknown' if they have no belief).

Response 389 tokens out · finish: stop

unknown

Reasoning 1,696 chars

Model reasoning

We need to parse timeline and infer beliefs. The question: "Where does Tamsin believe the bright folder is?" We need to track Tamsin's knowledge about bright folder location based on events she observed or could infer. We have events about bright folder movements by various people. We need to consider what Tamsin knows. Usually in such puzzles, each person only knows actions they performed or observed? The problem statement doesn't specify observation rules. Typically, each person knows only their own actions and maybe what they see? But we have no info about who sees what. Perhaps we assume each person only knows about items they directly handle (carry, take, move). So Tamsin's belief about bright folder would be based on any event where Tamsin moved or observed the bright folder. Did Tamsin ever handle bright folder? Let's scan timeline for bright folder events:

- 8:00 Greta moved bright folder into gym.
- 8:01 Roman carried bright folder to loading dock.
- 8:02 Ivo carried bright folder to north stairwell.
- 8:03 Jasper carried bright folder to courtyard.
- 8:04 Aria moved bright folder into cafeteria.
- 8:05 Greta took bright folder and placed it in south stairwell.
- 8:06 Jasper brought bright folder over to gym.
- 8:07 Marcus carried bright folder to security office.
- 8:08 Roman moved bright folder into rooftop terrace.
- 8:09 he (Roman) brought bright folder over to west wing.
- No further bright folder events after 8:09.

Tamsin never appears in bright folder events. So Tamsin never directly handled bright folder. Does she have any indirect knowledge? She might have observed some events? Not given. So likely she has no belief: unknown.

Thus answer: unknown.

Realized dims 5

dim	value
context_length	37.0
coreference	13.0
distractors	20.0
entity_state	10.0
temporal	0.5405405405405406

Latent params 5

param	value
chain_length	10.0
coref_pressure	5.0
distractor_events	20.0
filler_events	2.0
scramble	1.0