=== 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.DEBUG.MPI.ex() [0x5ac832]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:107

 1: ./Castro2d.gnu.DEBUG.MPI.ex() [0x5ac63a]
    amrex::BLBackTrace::handler(int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:55

 2: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4ea380]
    amrex::ParallelDescriptor::Abort(int, bool)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.cpp:224

 3: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4ab607]
    amrex::Assert(char const*, char const*, int, char const*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:341

 4: ./Castro2d.gnu.DEBUG.MPI.ex() [0x54754a]
    amrex::BaseFab<double>::define()
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:1880

 5: ./Castro2d.gnu.DEBUG.MPI.ex() [0x547006]
    amrex::BaseFab<double>::resize(amrex::Box const&, int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:2020

 6: ./Castro2d.gnu.DEBUG.MPI.ex() [0x5443b5]
    amrex::FArrayBox::resize(amrex::Box const&, int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FArrayBox.cpp:227

 7: ./Castro2d.gnu.DEBUG.MPI.ex() [0x456eb7]
    Castro::construct_hydro_source(double, double)
    /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_hydro.cpp:132

 8: ./Castro2d.gnu.DEBUG.MPI.ex() [0x42c69a]
    Castro::do_advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:274

 9: ./Castro2d.gnu.DEBUG.MPI.ex() [0x43016f]
    Castro::subcycle_advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:1240

10: ./Castro2d.gnu.DEBUG.MPI.ex() [0x42c1d0]
    Castro::advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:103

11: ./Castro2d.gnu.DEBUG.MPI.ex() [0x5fee9f]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2099

12: ./Castro2d.gnu.DEBUG.MPI.ex() [0x5ff637]
    amrex::Amr::coarseTimeStep(double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2386

13: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4469ab]
    main
    /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:133

14: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f4d30f44413]
    ??
    ??:0

15: ./Castro2d.gnu.DEBUG.MPI.ex() [0x40a5be]
    _start
    ??:?