=== 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.

=== 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.OMP.SDC.ex() [0x504ae9]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:108

 1: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x505b7c]
    amrex::BLBackTrace::handler(int) at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:55

 2: /lib64/libc.so.6(+0x38600) [0x7f4dedb51600]
    ?? ??:0

 3: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x5fe476]
    ca_srctoprim at /raid/testing/castro-gfortran/Castro//Source/hydro/advection_util_nd.F90:725

 4: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x4505a7]
    Castro::cons_to_prim(double) [clone ._omp_fn.0] at /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_hydro.cpp:76

 5: /lib64/libgomp.so.1(GOMP_parallel+0x43) [0x7f4dedd2a7b3]
    ?? ??:0

 6: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x44f8f8]
    Castro::cons_to_prim(double) at /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_hydro.cpp:92

 7: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x42f81f]
    Castro::do_advance_ctu(double, double, int, int) at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:123

 8: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x42e225]
    Castro::advance(double, double, int, int) at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:107

 9: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x540b75]
    amrex::Amr::timeStep(int, double, int, int, double) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2101

10: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x53686b]
    amrex::Amr::coarseTimeStep(double) at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2414

11: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x4190aa]
    main at /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:133

12: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f4dedb3d413]
    ?? ??:0

13: ./Castro1d.gnu.TEST.MPI.OMP.SDC.ex() [0x41d4fe]
    _start at ??:?