=== If no file names and line numbers are shown below, one can run
            addr2line -Cpfie my_exefile my_line_address
    to convert `my_line_address` (e.g., 0x4a6b) into file name and line number.
    Or one can use amrex/Tools/Backtrace/parse_bt.py.

=== 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.SMPLSDC.ex(+0x2f9320) [0x559aaa6b3320]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:163:29

 1: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x2f8f6a) [0x559aaa6b2f6a]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8

 2: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x1c30a7) [0x559aaa57d0a7]
    amrex::ParallelDescriptor::Abort(int, bool)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.cpp:230:22

 3: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x173c75) [0x559aaa52dc75]
    amrex::detail::Error_host_doit(char const*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:169:1

 4: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x2c0d4) [0x559aaa3e60d4]
    amrex::Error(char const*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.H:100:5

 5: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x1b482) [0x559aaa3d5482]
    Castro::initData()
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:1031:29

 6: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x38045f) [0x559aaa73a45f]
    amrex::Amr::defBaseLevel(double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2822:14

 7: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x37a133) [0x559aaa734133]
    amrex::Amr::InitializeInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1367:1

 8: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x37a050) [0x559aaa734050]
    amrex::Amr::initialInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1336:19

 9: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x37988b) [0x559aaa73388b]
    amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1210:13

10: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x8c535) [0x559aaa446535]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:33

11: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7ff402e731a3]
    __libc_start_main
??:0

12: ./Castro2d.gnu.DEBUG.MPI.SMPLSDC.ex(+0x1585e) [0x559aaa3cf85e]
    _start
??:0