[ns] Simulation stopped : Memory allocation

[Zakia Khalfallah]

Hi friends, anyone has encountered this problem while runing a simulation ? and what's the solution ?
"terminate called after throwing an instance of 'std::bad_alloc'
  what():  St9bad_alloc
unable to alloc 26 bytes
...unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
Bus error"Thank you,