Record edf484383f714c4bae939b7e16a6f345

FAIL

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

back to run →

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

finish_reason: stop · tokens in/out: 704/459 · cost: $0.000381 · latency: 8903.7 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: edf48438

← prev trial · trial 167 of 214 · next trial →

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 2,267 chars · 704 tokens in

At 8:19, Milo moved the worn folder into the observation deck. At 8:20, Wren took the worn folder and placed it in the courtyard. At 8:21, Greta carried the worn folder to the basement. At 8:22, Kian carried the worn folder to the archive room. At 8:23, he took the worn folder and placed it in the west wing. At 8:24, Elliot took the worn folder and placed it in the mail room. At 8:25, David brought the worn folder over to the archive room. At 8:26, Greta moved the worn folder into the mail room. At 8:27, she carried the worn folder to the garage. At 8:28, Wren took the worn folder and placed it in the archive room. At 8:29, Talia moved the worn folder into the observation deck. At 8:30, she reorganized some papers on the desk. At 8:31, David refilled a cup of coffee. At 8:32, Greta checked their email. At 8:33, Talia checked their email. At 8:34, Wren reorganized some papers on the desk. At 8:35, Greta made a quick phone call. At 8:36, Talia made a quick phone call. At 8:17, David brought the worn folder over to the rooftop terrace. At 8:00, Elliot brought the old wrench over to the observation deck. At 8:01, David moved the old wrench into the garage. At 8:02, Kian carried the old wrench to the mail room. At 8:03, he carried the old wrench to the basement. At 8:04, Jamal moved the old wrench into the archive room. At 8:05, Kian moved the old wrench into the west wing. At 8:06, Elliot moved the old wrench into the meditation room. At 8:07, Talia took the old wrench and placed it in the east wing. At 8:08, David carried the old wrench to the atrium. At 8:09, Milo took the old wrench and placed it in the archive room. At 8:10, Wren moved the worn folder into the rooftop terrace. At 8:11, Greta carried the worn folder to the observation deck. At 8:12, Talia brought the worn folder over to the east wing. At 8:13, Milo brought the worn folder over to the meditation room. At 8:14, he brought the worn folder over to the courtyard. At 8:15, Greta brought the worn folder over to the atrium. At 8:18, David took the worn folder and placed it in the garage. At 8:16, Milo brought the worn folder over to the meditation room.

Where does Greta believe the old wrench is? Answer with only the location name (or 'unknown' if they have no belief).

Response 459 tokens out · finish: stop

unknown

Reasoning 2,107 chars

Model reasoning

We need to parse the timeline and infer Greta's belief about the old wrench location. This is a classic belief tracking problem: each person has knowledge based on what they observed. We need to track Greta's knowledge of the old wrench's location, given events she observed (or could have observed). The timeline includes many actions with timestamps. We need to consider that each person only knows about events they directly observe or are told? Usually in these puzzles, each person knows only about actions they performed or observed, and they have perfect memory of those. They may not know about actions by others unless they see them. We need to infer Greta's belief at the end of timeline (after last event at 8:36). The question: "Where does Greta believe the old wrench is?" So we need to see what Greta knows about the old wrench's location.

We have events involving old wrench from 8:00 to 8:09. Greta is not mentioned in those events. So Greta never directly moves or sees the old wrench being moved. However, later events may give her indirect knowledge? She might have observed some later events where someone moved the old wrench? No later events mention old wrench after 8:09. So Greta never observed any movement of old wrench. She might have knowledge from earlier? At 8:00-8:09, Greta is not present. So she doesn't know where the old wrench is; she might have a default belief? Usually if she never saw it, she might believe it's still where she last saw it, but she never saw it. So belief is unknown.

But sometimes puzzles assume that everyone knows the initial location of items? Not given. The old wrench appears at 8:00: Elliot brought the old wrench over to the observation deck. So initial location before 8:00 unknown. At 8:00, Elliot moves it to observation deck. Greta not present. So Greta doesn't know that. She might think it's still where it was before (unknown). So answer likely "unknown".

Check if any later event includes Greta checking email, making phone call, etc. No mention of wrench. So Greta's belief about old wrench remains 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