Bug: DFTU calculation cannot finish normally

[WHUweiqingzhou]

Describe the bug

In /abacus-develop/tests/integrate/260_NO_DJ_PK_PU_AFM_URAMPING, I get the error, GDB find the error is
.

Expected behavior

Please fix it.

To Reproduce

No response

Environment

No response

Additional Context

No response

Task list for Issue attackers (only for developers)

• Verify the issue is not a duplicate.
• Describe the bug.
• Steps to reproduce.
• Expected behavior.
• Error message.
• Environment details.
• Additional context.
• Assign a priority level (low, medium, high, urgent).
• Assign the issue to a team member.
• Label the issue with relevant tags.
• Identify possible related issues.
• Create a unit test or automated test to reproduce the bug (if applicable).
• Fix the bug.
• Test the fix.
• Update documentation (if necessary).
• Close the issue and inform the reporter (if applicable).