(gdb) bt

#0  0x00000032e5830215 in raise () from /lib64/libc.so.6

#1  0x00000032e5831cc0 in abort () from /lib64/libc.so.6

#2  0x00000032e586a7fb in __libc_message () from /lib64/libc.so.6

#3  0x00000032e5871cec in _int_free () from /lib64/libc.so.6

#4  0x00000032e587590c in free () from /lib64/libc.so.6

#5  0x0000000000415af3 in __gnu_cxx::new_allocator<int>::deallocate (this=0x7fff2dbf2920, __p=0x1a512cd0)

    at /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/ext/new_allocator.h:94

#6  0x0000000000415b25 in std::_Vector_base<int, std::allocator<int> >::_M_deallocate (this=0x7fff2dbf2920, __p=0x1a512cd0, __n=2)

    at /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_vector.h:133

#7  0x0000000000415b66 in ~_Vector_base (this=0x7fff2dbf2920) at /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_vector.h:119

#8  0x0000000000415c39 in ~vector (this=0x7fff2dbf2920) at /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_vector.h:272

#9  0x0000000000411304 in Population::front_combine_joint_population (this=0x1a5112b0, fronts=@0x7fff2dbf2c30) at shaul-optimizer/Population.cpp:156

#10 0x000000000041b2b7 in ShaulOptimizer::postIteration (this=0x1a510a60, gen=4) at shaul-optimizer/ShaulOptimizer.cpp:90

#11 0x00000000004079f8 in main (argc=4, argv=0x7fff2dbf33f8) at main.cpp:52