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Record 4cdf7a94a1ef46f3a55e44db7b47ddbb

FAIL

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

✕FAILanswered "reception area" · model Nemotron 3 Super 120B

finish_reason: stop · tokens in/out: 625/2263 · cost: $0.001068 · latency: 10599.0 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 4cdf7a94

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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 2,000 chars · 625 tokens in
At 8:16, Felix moved the dusty basket into the east wing. At 8:17, Ivo carried the dusty basket to the loading dock. At 8:18, Felix moved the dusty basket into the garage. At 8:19, Ivo carried the dusty basket to the east wing. At 8:20, he moved the dusty basket into the meditation room. At 8:21, Felix brought the dusty basket over to the gym. At 8:22, he moved the dusty basket into the garage. At 8:23, Priya brought the dusty basket over to the observation deck. At 8:24, she brought the dusty basket over to the workshop. At 8:25, Felix brought the dusty basket over to the gym. At 8:26, Ivo carried the dusty basket to the garage. At 8:27, Felix carried the dusty basket to the kitchen. At 8:29, he carried the dusty basket to the kitchen. At 8:30, Ivo reorganized some papers on the desk. At 8:31, Priya refilled a cup of coffee. At 8:28, she took the dusty basket and placed it in the gym. At 8:00, Ivo took the large wrench and placed it in the loading dock. At 8:01, Felix carried the large wrench to the east wing. At 8:02, he took the large wrench and placed it in the loading dock. At 8:03, he carried the large wrench to the archive room. At 8:04, he moved the large wrench into the garage. At 8:05, Priya carried the large wrench to the storage room. At 8:06, he brought the large wrench over to the reception area. At 8:07, she took the large wrench and placed it in the loading dock. At 8:08, she took the large wrench and placed it in the garage. At 8:09, she brought the large wrench over to the workshop. At 8:10, Ivo brought the dusty basket over to the garage. At 8:11, he brought the dusty basket over to the kitchen. At 8:15, Priya brought the dusty basket over to the observation deck. At 8:12, he moved the dusty basket into the workshop. At 8:13, he moved the dusty basket into the loading dock. At 8:14, Felix moved the dusty basket into the kitchen.

Where does Felix believe the large wrench is? Answer with only the location name (or 'unknown' if they have no belief).
Response 2,263 tokens out · finish: stop

reception area
Reasoning 7,806 chars
Model reasoning
We need to parse the scenario: It's about beliefs? The question: "Where does Felix believe the large wrench is?" We need to infer from actions what Felix believes based on his knowledge? Usually these puzzles involve tracking who knows where objects are after moves, assuming people only know about moves they performed or witnessed? However description doesn't specify knowledge rules. Might be that each person only knows about actions they performed themselves? Or maybe they know all actions? Typically such puzzles assume agents have perfect memory of all actions they performed, but not of others unless they observed? Not given.

Let's read timeline:

Large wrench events:
- At 8:00, Ivo took the large wrench and placed it in the loading dock.
- At 8:01, Felix carried the large wrench to the east wing.
- At 8:02, he took the large wrench and placed it in the loading dock. (Who is "he"? Likely Felix? Since previous subject was Felix at 8:01; ambiguous but likely Felix.)
- At 8:03, he carried the large wrench to the archive room. (Again likely Felix)
- At 8:04, he moved the large wrench into the garage. (Felix)
- At 8:05, Priya carried the large wrench to the storage room.
- At 8:06, he brought the large wrench over to the reception area. (Who? Probably Felix again? But note after 8:05 Priya, then 8:06 "he" could be Ivo? Actually pattern: after Priya, maybe Ivo? Let's see earlier: At 8:00 Ivo, 8:01 Felix, 8:02 Felix, 8:03 Felix, 8:04 Felix, 8:05 Priya, 8:06 ??? Could be Ivo? Need to check pronoun usage elsewhere for consistency.

Look at dusty basket events: They use names often: "Felix moved", "Ivo carried", "Felix moved", "Ivo carried", "he moved", "Felix brought", "he moved", "Priya brought", "she brought", "Felix brought", "Ivo carried", "Felix carried", "he carried", "Ivo reorganized", "Priya refilled", "she took", etc. So pronouns refer to last mentioned person? For example at 8:20: "he moved the dusty basket into the meditation room." Who is "he"? Prior sentence: At 8:19, Ivo carried the dusty basket to the east wing. So "he" refers to Ivo. Good. At 8:21: "Felix brought the dusty basket over to the gym." explicit. At 8:22: "he moved the dusty basket into the garage." Prior subject Felix at 8:21, so "he" = Felix. At 8:23: "Priya brought...". At 8:24: "she brought..." (Priya). At 8:25: "Felix brought...". At 8:26: "Ivo carried...". At 8:27: "Felix carried...". At 8:28: "he carried the dusty basket to the kitchen." Wait there is a mismatch: At 8:27 Felix carried... At 8:28 "he carried the dusty basket to the kitchen." That would be Felix again (makes sense). Then at 8:29: "he carried the dusty basket to the kitchen." Again Felix? Actually two consecutive same action? Might be a mistake but okay. At 8:30: Ivo reorganized... At 8:31: Priya refilled... At 8:28 (out of order) she took the dusty basket and placed it in the gym. That's Priya (since "she").

Thus pronoun resolution: "he"/"she" refers to the last person mentioned by name in the preceding sentence (or maybe the most recent subject). Good.

Now apply to large wrench timeline.

List events with subjects:

8:00 Ivo took the large wrench and placed it in the loading dock. (Subject Ivo)
8:01 Felix carried the large wrench to the east wing. (Subject Felix)
8:02 he took the large wrench and placed it in the loading dock. (Last named subject before 8:02 is Felix at 8:01, so "he" = Felix)
8:03 he carried the large wrench to the archive room. (Last named subject before 8:03 is Felix at 8:02, so Felix)
8:04 he moved the large wrench into the garage. (Felix)
8:05 Priya carried the large wrench to the storage room. (Priya)
8:06 he brought the large wrench over to the reception area. (Last named subject before 8:06 is Priya at 8:05, so "he" = Priya? But Priya is female, pronoun "he" mismatched. Hmm maybe the pattern is not strict gender; maybe "he" refers to Ivo? Let's see earlier: At 8:00 Ivo, 8:01 Felix, 8:02 Felix, 8:03 Felix, 8:04 Felix, 8:05 Priya, 8:06 ??? If we follow pattern, "he" would refer to Ivo? Because Ivo was last male before Priya? Actually after 8:05 Priya, the last male mentioned was Felix at 8:04. But "he" could refer to Felix still? However typical pronoun resolution would be to the most recent male antecedent if gender matters. Since Priya is female, "he" cannot refer to her, so must refer to a male: either Ivo or Felix. The most recent male before 8:06 is Felix at 8:04 (since 8:05 Priya female). So "he" = Felix. That makes sense: Felix brought the large wrench to reception area.

Thus we need to consider gender: pronouns refer to most recent person of matching gender.

Continue:

8:07 she took the large wrench and placed it in the loading dock. (Last female before 8:07 is Priya at 8:05, so "she" = Priya)
8:08 she took the large wrench and placed it in the garage. (Priya)
8:09 she brought the large wrench over to the workshop. (Priya)
8:10 Ivo brought the dusty basket over to the garage. (Ivo) (this is about dusty basket, ignore)
8:11 he brought the dusty basket over to the kitchen. (Last male before 8:11: Ivo at 8:10, so Ivo)
8:12 he moved the dusty basket into the workshop. (Ivo)
8:13 he moved the dusty basket into the loading dock. (Ivo)
8:14 Felix moved the dusty basket into the kitchen. (Felix)
8:15 Priya brought the dusty basket over to the observation deck. (Priya)
8:16 Felix moved the dusty basket into the east wing. (Felix)
8:17 Ivo carried the dusty basket to the loading dock. (Ivo)
8:18 Felix moved the dusty basket into the garage. (Felix)
8:19 Ivo carried the dusty basket to the east wing. (Ivo)
8:20 he moved the dusty basket into the meditation room. (Last male before 8:20: Ivo at 8:19, so Ivo)
8:21 Felix brought the dusty basket over to the gym. (Felix)
8:22 he moved the dusty basket into the garage. (Felix)
8:23 Priya brought the dusty basket over to the observation deck. (Priya)
8:24 she brought the dusty basket over to the workshop. (Priya)
8:25 Felix brought the dusty basket over to the gym. (Felix)
8:26 Ivo carried the dusty basket to the garage. (Ivo)
8:27 Felix carried the dusty basket to the kitchen. (Felix)
8:28 she took the dusty basket and placed it in the gym. (Priya)
8:29 he carried the dusty basket to the kitchen. (Felix)
8:30 Ivo reorganized some papers on the desk. (Ivo)
8:31 Priya refilled a cup of coffee. (Priya)

Now back to large wrench timeline up to 8:09.

We need to determine Felix's belief about where the large wrench is after all events (presumably at the end of timeline, maybe after 8:31). We need to consider what Felix knows. Assuming Felix only knows about actions he performed himself (or maybe also actions he witnessed? Not specified). Usually in such puzzles, each agent knows the locations of objects they have moved themselves, but not others unless they were told? However we have no communication events. So Felix's belief would be based solely on his own actions regarding the large wrench.

Let's list Felix's actions involving large wrench:

- 8:01: Felix carried the large wrench to the east wing.
- 8:02: Felix took the large wrench and placed it in the loading dock.
- 8:03: Felix carried the large wrench to the archive room.
- 8:04: Felix moved the large wrench into the garage.
- 8:06: Felix brought the large wrench over to the reception area. (we determined)
After that, any further Felix actions with large wrench? Not listed. After 8:06, next large wrench event is 8:07 Priya, 8:08 Priya, 8:09 Priya. So Felix's last known action with large wrench is at 8:06 placing it in reception area.

Thus Felix believes the large wrench is in the reception area (unless he later learned of others moving it, but no info). So answer: reception area.

Check if any other Felix actions after 8:06 that involve large wrench indirectly? No.

Thus answer: reception area.
Realized dims 5
dimvalue
context_length32.0
coreference1.0
distractors20.0
entity_state10.0
temporal0.5282258064516129
Latent params 5
paramvalue
chain_length10.0
coref_pressure0.0
distractor_events20.0
filler_events2.0
scramble1.0