=== 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(+0x16c1a5) [0x55e213b231a5]
    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(+0x16e023) [0x55e213b25023]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8

 2: /lib64/libc.so.6(+0x3c6b0) [0x7fd9244226b0]
    __restore_rt
??:0

 3: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x93bb0) [0x55e213a4abb0]
    Castro::ca_sdc_conservative_update(amrex::Box const&, double, amrex::Array4<double const> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, amrex::Array4<double const> const&)
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.cpp:367:5

 4: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x97d06) [0x55e213a4ed06]
    Castro::do_sdc_update(int, int, double)
/raid/testing/castro-gfortran/Castro//Source/sdc/Castro_sdc.cpp:243:39

 5: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x4607c) [0x55e2139fd07c]
    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(+0x41a60) [0x55e2139f8a60]
    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(+0x1bc824) [0x55e213b73824]
    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(+0x1afead) [0x55e213b66ead]
    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(+0x225f6) [0x55e2139d95f6]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33

10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fd92440d1a3]
    __libc_start_main
??:0

11: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x2a1ae) [0x55e2139e11ae]
    _start
??:0