Memory checking results:
data race - 1
data race on vptr \(ctor/dtor vs virtual call\) - 1
heap-use-after-free - 1
thread leak - 1
destroy of a locked mutex - 1
double lock of a mutex - 1
unlock of an unlocked mutex \(or by a wrong thread\) - 1
read lock of a write locked mutex - 1
read unlock of a write locked mutex - 1
signal-unsafe call inside of a signal - 1
signal handler spoils errno - 1
lock-order-inversion \(potential deadlock\) - 1
