Record 07365e11abd94f6b8d8b322352c623ef

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: 752/667 · cost: $0.000513 · latency: 26562.0 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 07365e11

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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 2,430 chars · 752 tokens in

At 8:21, Talia moved the faded folder into the west wing. At 8:22, she carried the faded folder to the atrium. At 8:23, Hakim carried the faded folder to the break room. At 8:24, she brought the faded folder over to the reception area. At 8:25, Jasper moved the faded folder into the courtyard. At 8:26, Oscar moved the faded folder into the library. At 8:27, he took the faded folder and placed it in the mail room. At 8:28, Cyrus took the faded folder and placed it in the reception area. At 8:29, Clara moved the faded folder into the server room. At 8:30, Oscar reorganized some papers on the desk. At 8:31, he refilled a cup of coffee. At 8:32, Lucas checked their email. At 8:33, he refilled a cup of coffee. At 8:34, he glanced at the clock. At 8:35, Clara checked their email. At 8:36, Talia checked their email. At 8:20, Clara took the faded folder and placed it in the reception area. At 8:37, she reorganized some papers on the desk. At 8:38, Talia made a quick phone call. At 8:39, Clara made a quick phone call. At 8:16, Lucas carried the faded folder to the conference room. At 8:00, he took the sturdy wrench and placed it in the break room. At 8:01, Talia brought the sturdy wrench over to the reception area. At 8:01, he happened to be watching. At 8:02, Kian carried the sturdy wrench to the west wing. At 8:03, Cyrus brought the sturdy wrench over to the atrium. At 8:04, Talia moved the sturdy wrench into the break room. At 8:05, Hakim brought the sturdy wrench over to the conference room. At 8:06, she carried the sturdy wrench to the mail room. At 8:07, she carried the sturdy wrench to the server room. At 8:08, Oscar brought the sturdy wrench over to the garage. At 8:09, she brought the sturdy wrench over to the mail room. At 8:10, she brought the faded folder over to the server room. At 8:11, Hakim took the faded folder and placed it in the atrium. At 8:12, Clara took the faded folder and placed it in the library. At 8:13, Lucas carried the faded folder to the west wing. At 8:14, Talia carried the faded folder to the server room. At 8:15, Clara took the faded folder and placed it in the garage. At 8:17, Talia brought the faded folder over to the mail room. At 8:18, Cyrus carried the faded folder to the garage. At 8:19, Jasper moved the faded folder into the break room.

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

Response 667 tokens out · finish: stop

unknown

Reasoning 2,518 chars

Model reasoning

We need to parse timeline and determine Lucas's belief about location of sturdy wrench. Need to track events and any statements about Lucas's belief. The timeline includes many actions. We need to see if Lucas has any knowledge or belief about the wrench location. At 8:00, "he took the sturdy wrench and placed it in the break room." Who is "he"? At 8:00, preceding context: "At 8:00, he took the sturdy wrench and placed it in the break room." The previous mention is "At 8:16, Lucas carried the faded folder to the conference room." But 8:00 is earlier. Who is "he"? Could be ambiguous. Might refer to someone previously mentioned? The earlier line before 8:00 is none. The list starts with 8:21 etc. So 8:00 line is first. "he" ambiguous. Could be a generic male, maybe Lucas? But later at 8:01, "Talia brought the sturdy wrench over to the reception area." So the wrench moves after 8:00. At 8:02, Kian carried the sturdy wrench to the west wing. So after 8:00, the wrench moves multiple times. We need Lucas's belief. Does Lucas have any statements about checking email, etc. At 8:32, Lucas checked their email. At 8:33, he refilled a cup of coffee. At 8:34, he glanced at the clock. No mention of wrench. At 8:16, Lucas carried the faded folder to the conference room. No mention of wrench. So Lucas hasn't observed any wrench movement after 8:00. Does Lucas know about the wrench location? At 8:00, "he took the sturdy wrench and placed it in the break room." If Lucas is "he"? But at 8:00, Lucas hasn't been introduced yet. At 8:16, Lucas appears. So maybe "he" refers to someone else, maybe an unnamed person. So Lucas may not have belief. However, we might infer that Lucas's belief is based on last known location he observed. Did Lucas see any wrench movement? Not explicitly. At 8:01, Talia moved wrench. At 8:02, Kian moved wrench. At 8:03, Cyrus moved wrench. At 8:04, Talia moved wrench. At 8:05, Hakim moved wrench. At 8:06, she (who?) carried wrench to mail room. At 8:07, she carried wrench to server room. At 8:08, Oscar moved wrench to garage. At 8:09, she brought wrench to mail room. So many moves. Lucas hasn't observed any of these. So his belief might be unknown. Unless we assume Lucas knows the initial placement at 8:00 (if he is the "he"). But we need to decide.

The question: "Where does Lucas believe the sturdy wrench is?" Belief is based on his knowledge. He only checks email, refills coffee, glances at clock. No mention of seeing wrench. So likely unknown.

Thus answer: unknown.

Realized dims 6

dim	value
context_length	40.0
coreference	16.0
distractors	20.0
entity_state	10.0
temporal	0.5538461538461539
witness_gap	8.0

Latent params 6

param	value
chain_length	10.0
coref_pressure	5.0
distractor_events	20.0
filler_events	2.0
scramble	1.0
witness_cutoff	0.9