=== 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.ex(+0x2cac04) [0x55867b308c04]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:163:29

 1: ./Castro2d.gnu.DEBUG.MPI.ex(+0x2ca84e) [0x55867b30884e]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8

 2: ./Castro2d.gnu.DEBUG.MPI.ex(+0x1a1839) [0x55867b1df839]
    amrex::ParallelDescriptor::Abort(int, bool)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.cpp:230:22

 3: ./Castro2d.gnu.DEBUG.MPI.ex(+0x1526f3) [0x55867b1906f3]
    amrex::detail::Error_host_doit(char const*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:169:1

 4: ./Castro2d.gnu.DEBUG.MPI.ex(+0x2c8b2) [0x55867b06a8b2]
    amrex::Error(char const*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.H:100:5

 5: ./Castro2d.gnu.DEBUG.MPI.ex(+0x158584) [0x55867b196584]
    amrex_fi_error
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_error_fi.cpp:9:5

 6: ./Castro2d.gnu.DEBUG.MPI.ex(+0x56df1f) [0x55867b5abf1f]
    __amrex_error_module_MOD_amrex_error0
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_error_mod.F90:41

 7: ./Castro2d.gnu.DEBUG.MPI.ex(+0x6a6356) [0x55867b6e4356]
    __castro_error_module_MOD_castro_error
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_error_nd.F90:12

 8: ./Castro2d.gnu.DEBUG.MPI.ex(+0x7c72de) [0x55867b8052de]
    probdata_init_
tmp_build_dir/castro_sources/2d.gnu.DEBUG.MPI.EXE/prob_params_auto.F90:488

 9: ./Castro2d.gnu.DEBUG.MPI.ex(+0x537c61) [0x55867b575c61]
    __problem_io_module_MOD_initialize_io
/raid/testing/castro-gfortran/Castro//Exec/science/wdmerger/problem_io.f90:30

10: ./Castro2d.gnu.DEBUG.MPI.ex(+0x75ca10) [0x55867b79aa10]
    amrex_probinit
/raid/testing/castro-gfortran/Castro//Exec/science/wdmerger/Prob_nd.F90:14

11: ./Castro2d.gnu.DEBUG.MPI.ex(+0x34b51a) [0x55867b38951a]
    amrex::Amr::readProbinFile(int&)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1285:34

12: ./Castro2d.gnu.DEBUG.MPI.ex(+0x34b959) [0x55867b389959]
    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:1361:13

13: ./Castro2d.gnu.DEBUG.MPI.ex(+0x34b8a4) [0x55867b3898a4]
    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

14: ./Castro2d.gnu.DEBUG.MPI.ex(+0x34b0df) [0x55867b3890df]
    amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1210:13

15: ./Castro2d.gnu.DEBUG.MPI.ex(+0x8a2c3) [0x55867b0c82c3]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:33

16: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fafcd0781a3]
    __libc_start_main
??:0

17: ./Castro2d.gnu.DEBUG.MPI.ex(+0x1687e) [0x55867b05487e]
    _start
??:0