=== 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: ./Castro1d.gnu.DEBUG.MPI.ex() [0x56046a]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:104

 1: ./Castro1d.gnu.DEBUG.MPI.ex() [0x5602bd]
    amrex::BLBackTrace::handler(int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:51

 2: ./Castro1d.gnu.DEBUG.MPI.ex() [0x4c0885]
    amrex::ParallelDescriptor::Abort(int, bool)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.cpp:323

 3: ./Castro1d.gnu.DEBUG.MPI.ex() [0x472db7]
    amrex::Assert(char const*, char const*, int, char const*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:244

 4: ./Castro1d.gnu.DEBUG.MPI.ex() [0x42dac6]
    void amrex::FabArray<amrex::FArrayBox>::setVal<std::enable_if<true, void> >(double, int, int, int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FabArray.H:2458

 5: ./Castro1d.gnu.DEBUG.MPI.ex() [0x42bf8d]
    void amrex::FabArray<amrex::FArrayBox>::setVal<std::enable_if<true, void> >(double, int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FabArray.H:914

 6: ./Castro1d.gnu.DEBUG.MPI.ex() [0x459e15]
    Castro::do_new_sources(amrex::MultiFab&, amrex::MultiFab&, amrex::MultiFab&, double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/sources/Castro_sources.cpp:117

 7: ./Castro1d.gnu.DEBUG.MPI.ex() [0x426a37]
    Castro::reflux(int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:2481

 8: ./Castro1d.gnu.DEBUG.MPI.ex() [0x424ecb]
    Castro::post_timestep(int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:1544

 9: ./Castro1d.gnu.DEBUG.MPI.ex() [0x5873d3]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2012

10: ./Castro1d.gnu.DEBUG.MPI.ex() [0x5876b6]
    amrex::Amr::coarseTimeStep(double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2063

11: ./Castro1d.gnu.DEBUG.MPI.ex() [0x44deb3]
    main
    /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:132

12: /lib64/libc.so.6(__libc_start_main+0xea) [0x7f41e07fd88a]
    ??
    ??:0

13: ./Castro1d.gnu.DEBUG.MPI.ex() [0x40a6ba]
    _start
    ??:?