- std::vector< bool, MyAlloc<bool> > explored_children;
- std::vector< bool, MyAlloc<bool> > backtrack;
+ std::vector< bool, ModelAlloc<bool> > explored_children;
+ std::vector< bool, ModelAlloc<bool> > backtrack;
+ std::vector< struct fairness_info, ModelAlloc< struct fairness_info> > fairness;