MutaFix run: boltons-012

ranker nvidia/NVIDIA-Nemotron-3-Nano-30B-A3B · patcher nvidia/nemotron-3-super-120b-a12b · via Nebius Token Factory

fixedoutcome
129swall time
6model calls
$0.0290API cost
Benchmark ground truth (hidden from the agent)
boltons/urlutils.py:194 · operator NEGCOND · function boltons/urlutils.py::find_all_links
- if not (schemes and cur_url.scheme not in schemes):   (injected bug)+ if schemes and cur_url.scheme not in schemes:   (original)
retriever rank 1 of 20 · ranker position 1 · patched the right function yes · exact restore yes

Trace

reproduce
+3.0s
2 failing test(s) · 2 failed, 523 passed · 3.0s
failing tests and errors
tests/test_urlutils.py::test_find_all_links_basic
tests/test_urlutils.py::test_find_all_links
tests/test_urlutils.py::test_find_all_links_basic
E   AssertionError: assert 1 == 2
E    +  where 1 = len(['http://richprince.bizhttps://getprince.ly'])
tests/test_urlutils.py::test_find_all_links
E   AttributeError: 'str' object has no attribute 'to_text'
trace
+3.55s
re-ran 1 test file(s) with the trace plugin: 2 failing and 125 passing tests, 6 library functions ran in a failing test · 0.42s
tests/test_urlutils.py
retrieve
+3.55s
923 functions indexed, 53 reachable from tests/test_urlutils.py::test_find_all_links_basic in the static call graph. Kept 20 candidates, ranked by spectrum score (Ochiai), call graph and BM25 break ties.
candidates in retriever order
  1. boltons/urlutils.py::find_all_links call depth 1 · Ochiai 1.00 (failing 2, passing 0)
  2. boltons/urlutils.py::find_all_links.<locals>._add_text call depth 1 · Ochiai 1.00 (failing 2, passing 0)
  3. boltons/urlutils.py::to_unicode call depth 2 · Ochiai 0.19 (failing 2, passing 55)
  4. boltons/urlutils.py::URL.__init__ call depth 2 · Ochiai 0.15 (failing 2, passing 91)
  5. boltons/urlutils.py::parse_host call depth - · Ochiai 0.15 (failing 2, passing 91)
  6. boltons/urlutils.py::parse_url call depth 3 · Ochiai 0.15 (failing 2, passing 92)
  7. boltons/ioutils.py::SpooledIOBase.len call depth 1 · Ochiai 0.00 (failing 0, passing 0)
  8. boltons/ioutils.py::SpooledStringIO.len call depth 1 · Ochiai 0.00 (failing 0, passing 0)
  9. boltons/ioutils.py::SpooledBytesIO.len call depth 1 · Ochiai 0.00 (failing 0, passing 0)
  10. boltons/ioutils.py::MultiFileReader.read call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  11. boltons/socketutils.py::BufferedSocket.fileno call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  12. boltons/urlutils.py::URL.__repr__ call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  13. boltons/ioutils.py::SpooledStringIO.seek call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  14. boltons/ioutils.py::SpooledStringIO.read call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  15. boltons/fileutils.py::DummyFile.seek call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  16. boltons/fileutils.py::DummyFile.tell call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  17. boltons/fileutils.py::DummyFile.read call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  18. boltons/ioutils.py::SpooledBytesIO.buffer call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  19. boltons/ioutils.py::SpooledStringIO.buffer call depth 2 · Ochiai 0.00 (failing 0, passing 0)
  20. boltons/ioutils.py::MultiFileReader.seek call depth 2 · Ochiai 0.00 (failing 0, passing 0)
rank
+3.55s
spectrum order kept (no model call)
  1. boltons/urlutils.py::find_all_links
  2. boltons/urlutils.py::find_all_links.<locals>._add_text
  3. boltons/urlutils.py::to_unicode
  4. boltons/urlutils.py::URL.__init__
  5. boltons/urlutils.py::parse_host
read
+5.47s
turn 1 · NVIDIA-Nemotron-3-Nano-30B-A3B · 3811 in / 147 out · 1.93s · $0.00026

read boltons/urlutils.py::find_all_links

The failing test expects exactly 2 URLs but the assertion fails with length 1, indicating that one URL is not being detected. The source shows the regex pattern `_FIND_ALL_URL_RE` is used to find URLs, and the issue may be that the regex does not properly capture URLs that are directly attached to other characters (e.g., 'http://richprince.bizhttps://getprince.ly' where the first URL ends with 'biz' and the second starts with 'https'). This suggests the regex may not be correctly separating consecutive URLs. I need to examine the regex pattern definition.

read
+6.92s
turn 2 · NVIDIA-Nemotron-3-Nano-30B-A3B · 5112 in / 125 out · 1.45s · $0.00034

read boltons/urlutils.py::parse_url

The issue is likely in the regex pattern `_FIND_ALL_URL_RE` used to find URLs. The test case has a string with two URLs but one is attached to the other (e.g., 'http://richprince.bizhttps://getprince.ly'), which may cause the regex to not properly separate them. I need to examine the `parse_url` function which is likely where the regex is defined, as it's the only other function in the file that could contain this pattern.

read
+35.85s
turn 3 · nemotron-3-super-120b-a12b · 12516 in / 4170 out · 28.93s · $0.00751

read None bad candidate number 0

model reasoning (excerpt)
I need to find where `_FIND_ALL_URL_RE` is defined. Looking at the file, it's probably near the top. Let me check the beginning of the file for this pattern. Since I don't have the full file content shown, I should look for it in the visible parts or reason about it.

From the test failure, we see that when processing the text:
```
hi my name is prince nigeria, please visit my website
http://richprince.biz or if that's blocked try
https://getprince.ly! Thanks for your attention.bye!
...
```
The function returns only one URL instead of two. The error message shows: `len(['http://richprince.bizhttps://getprince.ly'])` - so it's capturing both URLs as one combined string: 'http://richprince.bizhttps://getprince.ly'.

This suggests that the regex pattern `_FIND_ALL_URL_RE` is not properly delimiting URLs when they appear consecutively without intervening text. Specifically, it's matching from the start of the first URL through the end of the second URL as a single match.

Looking at the code in `find_all_links`, on line 181: `start, end = match.start(1), match.end(1)`. This indicates that the regex has at least one capturing group, and group 1 is what's being used for the URL match.

The problem is likely that the regex pattern for `_FIND_ALL_URL_RE` is too greedy or doesn't have proper boundary conditions to stop at the end of a URL when another URL immediately follows.

Let me think about what the regex might look like. Typically, URL-finding regexes have patterns like:
- Schem
read
+68.72s
turn 4 · nemotron-3-super-120b-a12b · 12706 in / 4203 out · 32.87s · $0.00759

read boltons/urlutils.py::find_all_links

I need to look for the definition of `_FIND_ALL_URL_RE` in the file. Since I've already looked at the middle and end of the file, and the pattern is used in the `find_all_links` function, it's likely defined before that function. I'll re-examine the beginning part of the file by looking at candidate 1 again, but this time I need to see more context around the function definition.

model reasoning (excerpt)
We have seen the source of find_all_links (candidate 1) and parse_url (candidate 6). We haven't seen the definition of _FIND_ALL_URL_RE yet. Let's look at the top of the file (before line 136) to see if we can find the regex.

But note: the candidate numbers are fixed. We cannot read candidate 0 because the system says candidate must be 1..20. However, we saw that the list of candidates started at 1. So we must choose from 1 to 20.

We have not seen the regex in the parts we've read. Let's check if there is any other candidate that might contain the regex. The regex is likely defined near the top of the file. Since we don't have candidate 0, we must look for it in the given candidates.

Alternatively, we can look at the source of the file again but we are limited to the candidates. However, note that the system allowed us to read candidate 1 and 6. We might try to read candidate 2, 3, 4, 5, etc. but they are less likely.

But wait: the error in the second test is: AttributeError: 'str' object has no attribute 'to_text'. This occurs in test_find_all_links. Let's look at that test to understand what it's doing.

We don't have the test source for test_find_all_links, but we can infer from the error that somewhere in the code, a string is being treated as if it has a `to_text` method. This is likely the URL class's `to_text` method. In the URL class, we saw that there is a `to_text` method? Actually, we didn't see it in the given source for URL.__init__, but it might be present.
read
+103.18s
turn 5 · nemotron-3-super-120b-a12b · 15228 in / 4181 out · 34.449999999999996s · $0.00833

read boltons/urlutils.py::find_all_links.<locals>._add_text

I need to find where `_FIND_ALL_URL_RE` is defined. Since it's not in the `find_all_links` function, and it's a global pattern, it should be defined near the top of the file. I'll look at the beginning of the file by examining candidate functions that appear early in the file.

model reasoning (excerpt)
I need to find where _FIND_ALL_URL_RE is defined. It's not in the shown parts of the file. Let me look at the beginning of the file by checking if there are any global definitions before the find_all_links function. Since I can't see candidates before 1, I need to think differently.

Actually, wait - the candidate list starts at 1 for find_all_links. That means there are no candidates shown before it. But the pattern must be defined somewhere in the file. Let me look for it by reading the file from the beginning through some other means.

Since I can only access specific candidates, and the pattern is used in find_all_links, it's likely defined earlier in the same file. But I don't have access to lines before 136. 

Let me think about what the problem is: the test shows that when we have "http://richprince.bizhttps://getprince.ly", it's being treated as one URL instead of two separate URLs. This suggests the regex is not properly delimiting URLs when they are concatenated.

Looking at the test failure: 
AssertionError: assert 1 == 2
where 1 = len(['http://richprince.bizhttps://getprince.ly'])

So the function is returning a list with one element: 'http://richprince.bizhttps://getprince.ly' instead of two separate URLs.

This means the regex is matching the entire string as one URL instead of two separate ones.

The issue is likely in the regex pattern for _FIND_ALL_URL_RE. It probably needs to have better boundary detection.

Since I can't see the regex definition, I need to 
patch
+129.39s
turn 6 · nemotron-3-super-120b-a12b · 7813 in / 2923 out · 22.55s · $0.00497

Fix backwards logic in scheme filtering: when URL matches scheme criteria (or no filter), we should add the URL object; otherwise add text. Current code did the opposite.

--- a/boltons/urlutils.py+++ b/boltons/urlutils.py@@ -192,5 +192,5 @@                     _add_text(text[start:end])                     continue-            if not (schemes and cur_url.scheme not in schemes):+            if schemes and cur_url.scheme not in schemes:                 _add_text(text[start:end])             else:

tests: all tests pass 525 passed

model reasoning (excerpt)
I need to find the definition of _FIND_ALL_URL_RE. Let me look at the beginning of the file. Since I don't have a candidate for the very beginning, I should look for where this regex is defined. Let me think about the structure - it's likely defined before the find_all_links function.

Actually, let me approach this differently. The test failure shows that when we have "http://richprince.bizhttps://getprince.ly", it's being treated as a single URL instead of two separate URLs. This suggests the regex is not properly delimiting URLs when they are concatenated.

Looking at the find_all_links function, I see it uses _FIND_ALL_URL_RE.finditer(text) and then takes match.start(1) and match.end(1), meaning it's using group 1 for the URL match.

The problem might be that the regex doesn't have proper boundary conditions to prevent matching across what should be separate URLs.

Let me look for where _FIND_ALL_URL_RE is defined. Since I can't read arbitrary lines, I need to find a candidate that might show the top of the file.

Actually, wait - I should look at the imports or early definitions. Let me check if there are any other functions that might show the beginning of the file.

Since I'm limited to the candidates provided, and I've looked at several, let me think about what I know:

1. The test expects 2 URLs but gets 1
2. The problematic string is: "http://richprince.bizhttps://getprince.ly"
3. This suggests the regex is matching from "http" through the end of the second URL as o

Final patch

--- a/boltons/urlutils.py+++ b/boltons/urlutils.py@@ -192,5 +192,5 @@                     _add_text(text[start:end])                     continue-            if not (schemes and cur_url.scheme not in schemes):+            if schemes and cur_url.scheme not in schemes:                 _add_text(text[start:end])             else: