=== 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.TRUESDC.ex(+0x154975) [0x5619d3d9f975]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39

 1: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x1567f3) [0x5619d3da17f3]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8

 2: /lib64/libc.so.6(+0x3c6b0) [0x7f3ec32966b0]
    __restore_rt
??:0

 3: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x3025f2) [0x5619d3f4d5f2]
    __sdc_util_MOD_f_sdc_jac
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.F90:587

 4: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x304730) [0x5619d3f4f730]
    __sdc_util_MOD_sdc_newton_solve
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.F90:278

 5: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x304d44) [0x5619d3f4fd44]
    __sdc_util_MOD_sdc_newton_subdivide
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.F90:133

 6: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x304f52) [0x5619d3f4ff52]
    __sdc_util_MOD_sdc_solve
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.F90:54

 7: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x307cac) [0x5619d3f52cac]
    ca_sdc_update_o2
/raid/testing/castro-gfortran/Castro//Source/sdc/sdc_util.F90:1379

 8: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x8b692) [0x5619d3cd6692]
    Castro::do_sdc_update(int, int, double)
/raid/testing/castro-gfortran/Castro//Source/sdc/Castro_sdc.cpp:165:23

 9: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x49879) [0x5619d3c94879]
    Castro::do_advance_sdc(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_sdc.cpp:214:18

10: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x43cdb) [0x5619d3c8ecdb]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:61:42

11: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x195ffd) [0x5619d3de0ffd]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2121:36

12: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x18993a) [0x5619d3dd493a]
    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

13: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x26fb6) [0x5619d3c71fb6]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33

14: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f3ec32811a3]
    __libc_start_main
??:0

15: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x2c2be) [0x5619d3c772be]
    _start
??:0