==433==  Address 0x444851C is 20 bytes inside a block of size 24 free'd
==433==    at 0x4020CC7: operator delete(void*) (vg_replace_malloc.c:244)
==433==    by 0x804AA28: std::_Rb_tree<ProxTrie*, std::pair<ProxTrie* const, Relationship*>, std::_Select1st<std::pair<ProxTrie* const, Relationship*> >, std::less<ProxTrie*>, std::allocator<std::pair<ProxTrie* const, Relationship*> > >::_M_erase(std::_Rb_tree_node<std::pair<ProxTrie* const, Relationship*> >*) (new_allocator.h:94)
==433==    by 0x804A3F3: ProxTrie::~ProxTrie() (stl_tree.h:578)
==433==    by 0x804A4AF: ProxTrie::~ProxTrie() (Trie.hpp:26)
==433==    by 0x804A4AF: ProxTrie::~ProxTrie() (Trie.hpp:26)
==433==    by 0x804A4AF: ProxTrie::~ProxTrie() (Trie.hpp:26)
==433==    by 0x804A4AF: ProxTrie::~ProxTrie() (Trie.hpp:26)
==433==    by 0x804C456: main (main.cpp:14)