.
Thread 1 (process 7725):
#0  0xb7e9fe1f in pkgProblemResolver::MakeScores ()
   from /usr/lib/libapt-pkg-libc6.8-6.so.4.6
#1  0xb7ea27b0 in pkgProblemResolver::Resolve ()
   from /usr/lib/libapt-pkg-libc6.8-6.so.4.6
#2  0x080aaeab in ?? ()
#3  0x0805a4f0 in ?? ()
#4  0xb6f6a685 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#5  0x080584d1 in ?? ()