Unexpected data appears

[WeiMengXS]

Why does the coverage API report an unexpected number of lines? For instance, my source file has only 180 lines, yet the coverage tool indicates that 218 or 219 lines are covered.（The issue doesn't occur right after the program starts, but it surfaces after running for a while and is consistently reproducible.）

python version: 3.8
coverage version: 7.6.1

Use:

        cover_data = cover.get_data()
        for filename in cover_data.measured_files():
             file_reporter = cover._get_file_reporter(filename)
             covered_line_list = file_reporter.translate_lines(analysis.executed) or []

Unexpected data in covered_line_list！

Are there any similar solved cases?

[nedbat]

If you can give me a way to reproduce it, we can debug the problem.