Bug: failed at exact same second call. the first time is ok

[I-E-E-E]

Describe the bug

python: malloc.c:4122: _int_malloc: Assertion `chunk_main_arena (fwd)' failed.
Aborted (core dumped)

Steps to reproduce

@server
def get_user_profiles(query: str, top_k: int = 5):
print(f"get_user_profiles: {query}")
global user_profile_index
# import pdb;pdb.set_trace()
print(f"get_user_profiles: {query}")
queries = [query]
query_embeddings = model.encode(queries, normalize_embeddings=True)
logger.info(f"query_embeddings: {query_embeddings}")
results, search_time, corpus_index = semantic_search_usearch(
query_embeddings,
corpus_index=user_profile_index,
corpus_embeddings=corpus_embeddings if user_profile_index is None else None,
corpus_precision=corpus_precision,
top_k=top_k,
calibration_embeddings=full_corpus_embeddings,
rescore=corpus_precision != "float32",
rescore_multiplier=4,
exact=True,
output_index=True,
)
# import pdb;pdb.set_trace()
# print(f"query_embeddings: {query_embeddings}")
del query_embeddings

for query, result in zip(queries, results):
    print(f"Query: {query}")
    user_profiles = []
    for entry in result:
        score = entry['score']
        corpus_id = entry['corpus_id']
        # text = corpus[corpus_id]
        # print(f"(Score: {score:.4f}) {text}")
        logger.info(f"corpus_id: {corpus_id}")
        with duckdb.connect("duckdb.db") as con:
            df = con.sql(f"select *  from user_profile offset {corpus_id} limit 1").df()
        logger.info(f"df: {df}")
        user_profile = df['user'].values[0]
        logger.info(f"user_profile: {user_profile}")
        user_profiles.append(user_profile)
return user_profiles

Expected behavior

return the same

USearch version

v0.4.0

Operating System

22.04

Hardware architecture

x86

Which interface are you using?

Python bindings

Contact Details

No response

Are you open to being tagged as a contributor?

• I am open to being mentioned in the project .git history as a contributor

Is there an existing issue for this?

• I have searched the existing issues

Code of Conduct

• I agree to follow this project's Code of Conduct