=== If no file names and line numbers are shown below, one can run
            addr2line -Cfie my_exefile my_line_address
    to convert `my_line_address` (e.g., 0x4a6b) into file name and line number.

=== Please note that the line number reported by addr2line may not be accurate.
    One can use
            readelf -wl my_exefile | grep my_line_address'
    to find out the offset for that line.

 0: ./Castro2d.gnu.TEST.OMP.ex() [0x4e7276]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:108

 1: ./Castro2d.gnu.TEST.OMP.ex() [0x4e8b92]
    amrex::BLBackTrace::handler(int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:55

 2: ./Castro2d.gnu.TEST.OMP.ex() [0x43b7a0]
    amrex::Abort(char const*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:237

 3: ./Castro2d.gnu.TEST.OMP.ex() [0x40d75a]
    std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_is_local() const
    /usr/include/c++/7/bits/basic_string.h:211
    std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_dispose()
    /usr/include/c++/7/bits/basic_string.h:220
    std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()
    /usr/include/c++/7/bits/basic_string.h:647
    Castro::check_for_nan(amrex::MultiFab&, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3543

 4: ./Castro2d.gnu.TEST.OMP.ex() [0x41a6bd]
    amrex::AmrLevel::get_new_data(int)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_AmrLevel.H:316
    Castro::do_advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:322

 5: ./Castro2d.gnu.TEST.OMP.ex() [0x41aa14]
    Castro::subcycle_advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:1242

 6: ./Castro2d.gnu.TEST.OMP.ex() [0x41d5aa]
    Castro::advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:103

 7: ./Castro2d.gnu.TEST.OMP.ex() [0x515d73]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1948

 8: ./Castro2d.gnu.TEST.OMP.ex() [0x515e6e]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2005

 9: ./Castro2d.gnu.TEST.OMP.ex() [0x515e6e]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2005

10: ./Castro2d.gnu.TEST.OMP.ex() [0x515e6e]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2005

11: ./Castro2d.gnu.TEST.OMP.ex() [0x50b06f]
    amrex::Amr::coarseTimeStep(double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2162

12: ./Castro2d.gnu.TEST.OMP.ex() [0x4070f2]
    main
    /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:132

13: /lib64/libc.so.6(__libc_start_main+0xea) [0x7f2b3f44ff2a]
    ??
    ??:0

14: ./Castro2d.gnu.TEST.OMP.ex() [0x40a97a]
    _start
    ??:?