=== 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.TEST.MPI.TRUESDC.ex(+0x15f065) [0x559cd591b065]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39

 1: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x160ee3) [0x559cd591cee3]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8

 2: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1f4abf) [0x559cd59b0abf]
    __amrex_error_module_MOD_amrex_error0
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_error_mod.F90:41

 3: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x2cd717) [0x559cd5a89717]
    ca_sdc_update_centers_o4
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.F90:1442

 4: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x8a80c) [0x559cd584680c]
    Castro::do_sdc_update(int, int, double)
/raid/testing/castro-gfortran/Castro//Source/sdc/Castro_sdc.cpp:216:19

 5: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x424d9) [0x559cd57fe4d9]
    Castro::do_advance_sdc(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_sdc.cpp:216:18

 6: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x3d250) [0x559cd57f9250]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:61:42

 7: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1ac404) [0x559cd5968404]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2121:36

 8: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x19fb1a) [0x559cd595bb1a]
    std::vector<double, std::allocator<double> >::operator[](unsigned long) inlined at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_Vector.H:33:54 in amrex::Amr::coarseTimeStep(double)
/usr/include/c++/9/bits/stl_vector.h:1042:2
amrex::Vector<double, std::allocator<double> >::operator[](unsigned long)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_Vector.H:33:54
amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2439:26

 9: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1fbd6) [0x559cd57dbbd6]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:152:33

10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f7d0c4b01a3]
    __libc_start_main
??:0

11: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x2445e) [0x559cd57e045e]
    _start
??:0