Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd4b1e700 (LWP 14227)]
0x00007ffff1849173 in std::_Rb_tree_increment(std::_Rb_tree_node_base*) () from /usr/lib/libstdc++.so.6
(gdb) bt
#0  0x00007ffff1849173 in std::_Rb_tree_increment(std::_Rb_tree_node_base*) () from /usr/lib/libstdc++.so.6
#1  0x00007fffd0edd394 in pr2_controller_manager::ControllerManager::publishMechanismStatistics() ()
   from /code/ros/pr2_mechanism/pr2_controller_manager/lib/libpr2_controller_manager.so
#2  0x00007fffd0eddd1e in pr2_controller_manager::ControllerManager::update() ()
   from /code/ros/pr2_mechanism/pr2_controller_manager/lib/libpr2_controller_manager.so
#3  0x00007fffd2feec4f in gazebo::GazeboRosControllerManager::UpdateChild() ()
   from /code/ros/pr2_simulator/pr2_gazebo_plugins/lib/libgazebo_ros_controller_manager.so
#4  0x00007ffff7b5006f in gazebo::Controller::Update (this=0x832450)
    at /code/ros/simulator_gazebo/gazebo/build/gazebo/server/controllers/Controller.cc:211
#5  0x00007ffff7b85c2f in gazebo::Model::Update (this=0x7fffcc0c5550)
    at /code/ros/simulator_gazebo/gazebo/build/gazebo/server/Model.cc:468
#6  0x00007ffff7b654c5 in gazebo::World::Update (this=0x95a6c0)
    at /code/ros/simulator_gazebo/gazebo/build/gazebo/server/World.cc:349
#7  0x00007ffff7b95c9c in gazebo::Simulator::PhysicsLoop (this=0x813f70)
    at /code/ros/simulator_gazebo/gazebo/build/gazebo/server/Simulator.cc:712
#8  0x00007ffff2b66200 in thread_proxy () from /usr/lib/libboost_thread.so.1.42.0
#9  0x00007ffff689f8ba in start_thread () from /lib/libpthread.so.0
#10 0x00007ffff10ad02d in clone () from /lib/libc.so.6
#11 0x0000000000000000 in ?? ()