=== 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: ./Castro1d.gnu.TEST.MPI.ex() [0x5039c9]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:108

 1: ./Castro1d.gnu.TEST.MPI.ex() [0x504a59]
    amrex::BLBackTrace::handler(int) at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:55

 2: ./Castro1d.gnu.TEST.MPI.ex() [0x5d358c]
    __amrex_error_module_MOD_amrex_error0 at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_error_mod.F90:41 (discriminator 4)

 3: ./Castro1d.gnu.TEST.MPI.ex() [0x67b657]
    amrex_probinit at /raid/testing/castro-gfortran/Castro/Exec/science/flame/Prob_nd.F90:104

 4: ./Castro1d.gnu.TEST.MPI.ex() [0x535ed7]
    amrex::Amr::readProbinFile(int&) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1283

 5: ./Castro1d.gnu.TEST.MPI.ex() [0x53a133]
    amrex::Amr::InitializeInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1356

 6: ./Castro1d.gnu.TEST.MPI.ex() [0x53a153]
    amrex::Amr::initialInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1334

 7: ./Castro1d.gnu.TEST.MPI.ex() [0x53e323]
    amrex::Amr::init(double, double) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1210

 8: ./Castro1d.gnu.TEST.MPI.ex() [0x41ca24]
    main at /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:121

 9: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f2b1eb71413]
    ?? ??:0

10: ./Castro1d.gnu.TEST.MPI.ex() [0x4218ee]
    _start at ??:?