How to find tools that are presented in the papers?
The tools you state are prototypes developed by the authors. They may not always have enough rank to be easily Googled, so the best place to search for them would be the respective institution sites and author sites.

For instance,


MAPO can be found in the corresponding author Tao Xie's website (although you might need his consent to access it).
MICA is available in GitHub with copyright by Carnegie Mellon University.


If that doesn't work, the best thing to do would be to mail the corresponding author requesting the required access to the software.