cleaned unused files
modified reference length in stat
debug multi-thread problem in analysis result display
Revert "debug multi-thread problem in analysis result display"

This reverts commit 0f893da68ccdc0afd93c8feb84c1a7fd0445496b.
Revert "Revert "debug multi-thread problem in analysis result display""

This reverts commit 800290921d8614344bd94e770b6815a41adb829e.