Debugging

L3
ModelContextProtocolFilesystemVotenet

Identify and fix bugs in the VoteNet backbone module by examining the codebase and implementing necessary corrections.

Created by Lingjun Chen
2025-08-13
Code Exploration

Model Ranking

Click on the dots to view the trajectory of each task run
Model
Run Results
Pass@4
Pass^4
Avg Time
Avg Turns
Input Tokens
Output Tokens
Total Tokens
OpenAI
gpt-5-high
3
/4
1232.6s
14.8
189,427
28,712
218,139
Grok
grok-4
3
/4
213.4s
13.0
155,181
10,249
165,430
DeepSeek
deepseek-chat
2
/4
412.3s
26.8
601,944
6,052
607,996
OpenAI
gpt-5-low
2
/4
137.3s
11.0
74,776
7,821
82,597
Gemini
gemini-2-5-flash
1
/4
27.7s
6.5
17,377
3,273
20,650
Gemini
gemini-2-5-pro
1
/4
92.5s
12.5
39,375
7,294
46,668
OpenAI
gpt-5-medium
1
/4
195.3s
10.3
91,035
9,484
100,519
OpenAI
gpt-5-nano-high
1
/4
178.3s
28.5
468,288
17,851
486,139
OpenAI
gpt-5-nano-low
1
/4
135.3s
25.0
424,849
23,351
448,200
OpenAI
gpt-5-nano-medium
1
/4
111.7s
21.0
401,647
18,263
419,909
MoonshotAI
kimi-k2-0711
1
/4
189.2s
24.3
409,262
3,598
412,860
Qwen
qwen-3-coder-plus
1
/4
91.2s
15.8
213,612
2,117
215,729
Claude
claude-opus-4-1
0
/1
--
194.2s
13.0
90,470
2,199
92,669
Claude
claude-sonnet-4
0
/4
158.8s
17.0
268,114
3,910
272,024
Claude
claude-sonnet-4-high
0
/4
93.6s
17.3
326,723
3,236
329,958
Claude
claude-sonnet-4-low
0
/4
66.3s
12.3
171,605
2,421
174,026
Z.ai
glm-4-5
0
/4
98.0s
10.5
94,035
3,894
97,928
OpenAI
gpt-4-1
0
/4
35.6s
15.0
121,976
1,187
123,163
OpenAI
gpt-4-1-mini
0
/4
34.5s
16.3
67,898
988
68,886
OpenAI
gpt-4-1-nano
0
/4
51.9s
34.0
251,538
1,012
252,550
OpenAI
gpt-5-mini-high
0
/4
106.3s
16.8
175,660
11,187
186,847
OpenAI
gpt-5-mini-low
0
/4
20.6s
6.3
12,998
577
13,575
OpenAI
gpt-5-mini-medium
0
/4
53.0s
11.5
80,494
4,323
84,817
OpenAI
gpt-oss-120b
0
/4
9.9s
4.3
8,899
368
9,267
Grok
grok-code-fast-1
0
/4
192.8s
12.8
146,768
1,178
151,892
MoonshotAI
kimi-k2-0905
0
/4
234.8s
19.3
246,316
2,478
248,795
OpenAI
o3
0
/4
84.2s
12.3
118,885
4,446
123,331
OpenAI
o4-mini
0
/4
314.5s
28.8
486,805
24,580
511,385
Qwen
qwen-3-max
0
/4
21.1s
6.5
34,614
576
35,189

Task State

Task Initial State Files
Download ZIP package to view the complete file structure
votenet/ ├── doc/ │ ├── teaser.jpg │ └── tips.md ├── models/ │ ├── ap_helper.py │ ├── backbone_module.py │ ├── boxnet.py │ ├── dump_helper.py │ ├── loss_helper.py │ ├── loss_helper_boxnet.py │ ├── proposal_module.py │ ├── votenet.py │ └── voting_module.py ├── pointnet2/ │ ├── _ext_src/ │ │ ├── include/ │ │ │ ├── ball_query.h │ │ │ ├── cuda_utils.h │ │ │ ├── group_points.h │ │ │ ├── interpolate.h │ │ │ ├── sampling.h │ │ │ └── utils.h │ │ └── src/ │ │ ├── ball_query.cpp │ │ ├── ball_query_gpu.cu │ │ ├── bindings.cpp │ │ ├── group_points.cpp │ │ ├── group_points_gpu.cu │ │ ├── interpolate.cpp │ │ ├── interpolate_gpu.cu │ │ ├── sampling.cpp │ │ └── sampling_gpu.cu │ ├── pointnet2_modules.py │ ├── pointnet2_test.py │ ├── pointnet2_utils.py │ ├── pytorch_utils.py │ └── setup.py ├── scannet/ │ ├── meta_data/ │ │ ├── scannet_means.npz │ │ ├── scannet_train.txt │ │ ├── scannetv2-labels.combined.tsv │ │ ├── scannetv2_test.txt │ │ ├── scannetv2_train.txt │ │ └── scannetv2_val.txt │ ├── scans/ │ ├── batch_load_scannet_data.py │ ├── data_viz.py │ ├── load_scannet_data.py │ ├── model_util_scannet.py │ ├── README.md │ ├── scannet_detection_dataset.py │ └── scannet_utils.py ├── sunrgbd/ │ ├── matlab/ │ │ ├── extract_rgbd_data_v1.m │ │ ├── extract_rgbd_data_v2.m │ │ └── extract_split.m │ ├── OFFICIAL_SUNRGBD/ │ ├── sunrgbd_trainval/ │ ├── model_util_sunrgbd.py │ ├── README.md │ ├── sunrgbd_data.py │ ├── sunrgbd_detection_dataset.py │ └── sunrgbd_utils.py ├── utils/ │ ├── box_util.py │ ├── eval_det.py │ ├── metric_util.py │ ├── nms.py │ ├── nn_distance.py │ ├── pc_util.py │ ├── tf_logger.py │ └── tf_visualizer.py ├── CODE_OF_CONDUCT.md ├── CONTRIBUTING.md ├── demo.py ├── eval.py ├── LICENSE ├── README.md └── train.py

Instruction

Please use FileSystem tools to finish the following task:

Task Description

There is a bug in the VoteNet backbone module that needs to be identified and fixed.

Task Objectives

  1. Examine the codebase using filesystem MCP tools
  2. Identify the bug inside the hole process
  3. Fix the bug in the code
  4. Create an answer file with the bug location

Expected Output

  1. Fix the bug in the code file directly
  2. Create answer.txt in the test directory root with the format: path

Requirements:

  • Only include the bug's file path in answer.txt
  • No additional text or explanation

Hint

The bug is not in demo.py, please look deeper inside the codebase.



Verify

*.py
Python
#!/usr/bin/env python3
"""
Verification script for VoteNet Task: Debug Backbone Module
"""

import sys
from pathlib import Path
import re
import os

def get_test_directory() -> Path:
    """Get the test directory from FILESYSTEM_TEST_DIR env var."""
    test_root = os.environ.get("FILESYSTEM_TEST_DIR")
    if not test_root:
        raise ValueError("FILESYSTEM_TEST_DIR environment variable is required")
    return Path(test_root)

def verify_answer_file_exists(test_dir: Path) -> bool:
    """Verify that the answer.txt file exists."""
    answer_file = test_dir / "answer.txt"
    
    if not answer_file.exists():
        print("❌ File 'answer.txt' not found")
        return False
    
    print("✅ Answer file found")
    return True

def verify_answer_format(test_dir: Path) -> bool:
    """Verify that the answer file has the correct format."""
    answer_file = test_dir / "answer.txt"
    
    try:
        content = answer_file.read_text().strip()
        
        # Check if content is not empty
        if not content:
            print("❌ Answer file is empty")
            return False
        
        # Check if it contains only one line (no additional text)
        if len(content.split('\n')) > 1:
            print("❌ Answer file contains multiple lines or additional text")
            return False
        
        # Check if path contains the expected components
        if 'models/backbone_module.py' not in content:
            print("❌ Answer should contain 'models/backbone_module.py'")
            return False
        
        print("✅ Answer format is correct")
        return True
        
    except Exception as e:
        print(f"❌ Error reading answer file: {e}")
        return False

def verify_file_path_structure(test_dir: Path) -> bool:
    """Verify that the file path has the expected structure."""
    answer_file = test_dir / "answer.txt"
    
    try:
        content = answer_file.read_text().strip()
        
        # Expected path components for backbone module
        expected_components = ["models", "backbone_module.py"]
        
        # Check if all expected components are in the content
        for component in expected_components:
            if component not in content:
                print(f"❌ Answer missing expected component: {component}")
                return False
        
        print("✅ Answer contains expected components")
        return True
        
    except Exception as e:
        print(f"❌ Error verifying answer structure: {e}")
        return False

def verify_file_exists(test_dir: Path) -> bool:
    """Verify that the identified file actually exists."""
    answer_file = test_dir / "answer.txt"
    
    try:
        content = answer_file.read_text().strip()
        
        # Try the expected path
        file_path = test_dir / "models/backbone_module.py"
        
        if not file_path.exists():
            print(f"❌ Expected file does not exist: models/backbone_module.py")
            return False
        
        print("✅ Expected file exists")
        return True
        
    except Exception as e:
        print(f"❌ Error verifying file existence: {e}")
        return False

def verify_bug_fix(test_dir: Path) -> bool:
    """Verify that the bug has been fixed in the code."""
    answer_file = test_dir / "answer.txt"
    
    try:
        content = answer_file.read_text().strip()
        
        file_path = test_dir / "models/backbone_module.py"
        
        if not file_path.exists():
            print(f"❌ Cannot find file for bug fix verification: models/backbone_module.py")
            return False
        
        # Read the file and search for the specific line containing self.fp2 = PointnetFPModule
        file_content = file_path.read_text()
        lines = file_content.split('\n')
        
        # Find the line containing self.fp2 = PointnetFPModule
        target_line = None
        target_line_number = None
        
        for i, line in enumerate(lines):
            if "self.fp2 = PointnetFPModule" in line:
                target_line = line.strip()
                target_line_number = i + 1  # Convert to 1-based line number
                break
        
        if target_line is None:
            print("❌ Could not find line containing 'self.fp2 = PointnetFPModule'")
            return False
        
        # Check if the original buggy line still exists
        original_bug = "self.fp2 = PointnetFPModule(mlp=[256,256,256])"
        if original_bug in target_line:
            print(f"❌ Bug has not been fixed - original line still exists at line {target_line_number}")
            print(f"   Line {target_line_number} content: {target_line}")
            return False
        
        # Check for the correct fix
        correct_fixes = [
            "self.fp2 = PointnetFPModule(mlp=[256+256,256,256])",
            "self.fp2 = PointnetFPModule(mlp=[512,256,256])"
        ]
        
        fix_found = False
        for fix in correct_fixes:
            if fix in target_line:
                fix_found = True
                break
        
        if not fix_found:
            print(f"❌ Bug fix not found at line {target_line_number}")
            print(f"   Line {target_line_number} content: {target_line}")
            print("   Expected one of:")
            for fix in correct_fixes:
                print(f"   - {fix}")
            return False
        
        print(f"✅ Bug has been fixed correctly at line {target_line_number}")
        return True
        
    except Exception as e:
        print(f"❌ Error verifying bug fix: {e}")
        return False



def main():
    """Main verification function."""
    test_dir = get_test_directory()
    print("🔍 Verifying VoteNet Task: Debug Backbone Module...")
    
    # Define verification steps
    verification_steps = [
        ("Answer File Exists", verify_answer_file_exists),
        ("Answer Format", verify_answer_format),
        ("Answer Structure", verify_file_path_structure),
        ("File Exists", verify_file_exists),
        ("Bug Fix Applied", verify_bug_fix),
    ]
    
    # Run all verification steps
    all_passed = True
    for step_name, verify_func in verification_steps:
        print(f"\n--- {step_name} ---")
        if not verify_func(test_dir):
            all_passed = False
    
    # Final result
    print("\n" + "="*50)
    if all_passed:
        print("✅ VoteNet backbone module bug has been correctly identified and fixed!")
        print("🎉 Task verification: PASS")
        sys.exit(0)
    else:
        print("❌ Task verification: FAIL")
        sys.exit(1)

if __name__ == "__main__":
    main()