run the gc only after a new global best solution has been found
tree69b432a1f1f5bee6c77cd6b8b115d0e1684321a4
-rw-r--r-- 226 .classpath
-rw-r--r-- 63 .gitignore
-rw-r--r-- 362 .project
drwxr-xr-x - .settings
-rw-r--r-- 387 Makefile
drwxr-xr-x - protoas
drwxr-xr-x - si
drwxr-xr-x - src