=== 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.SDC.ex() [0x51bf31]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39

 1: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x51dd79]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8

 2: /lib64/libc.so.6(+0x38600) [0x7fbe7f7c8600]
    __restore_rt
??:0

 3: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x601a34]
    __sneut_module_MOD_sneut5
/raid/testing/castro-gfortran/Microphysics//neutrinos/sneut5.F90:821

 4: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x5d1f89]
    __actual_rhs_module_MOD_actual_rhs
/raid/testing/castro-gfortran/Microphysics//networks/aprox13/actual_rhs.F90:122

 5: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x5a3c37]
    f_rhs_
/raid/testing/castro-gfortran/Microphysics//integration/VODE/vode_rhs_sdc.f90:44

 6: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x59f857]
    dvnlsd_
/raid/testing/castro-gfortran/Microphysics//integration/VODE/vode_source/dvnlsd.f:114

 7: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x5a15ee]
    dvstep_
/raid/testing/castro-gfortran/Microphysics//integration/VODE/vode_source/dvstep.f:225

 8: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x59c6ff]
    dvode_
/raid/testing/castro-gfortran/Microphysics//integration/VODE/vode_source/dvode.f:1405

 9: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x5a3b4e]
    __vode_integrator_module_MOD_vode_integrator
/raid/testing/castro-gfortran/Microphysics//integration/VODE/vode_integrator_sdc.f90:173

10: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x5f1161]
    __integrator_module_MOD_integrator
/raid/testing/castro-gfortran/Microphysics//integration/integrator_sdc.F90:76

11: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x6844b9]
    ca_react_state_simplified_sdc
/raid/testing/castro-gfortran/Castro//Source/reactions/React_nd.F90:325

12: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x46938b]
    Castro::react_state(double, double)
/raid/testing/castro-gfortran/Castro//Source/reactions/Castro_react.cpp:387:31

13: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x432e37]
    amrex::Vector<amrex::StateData, std::allocator<amrex::StateData> >::operator[](unsigned long) inlined at /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_AmrLevel.H:320:79 in Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_Vector.H:40:54
amrex::AmrLevel::get_new_data(int)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_AmrLevel.H:320:79
Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:164:58

14: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x563df5]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2112:44

15: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x559136]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2439:13

16: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x41a592]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33

17: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fbe7f7b4413]
    __libc_start_main
??:0

18: ./Castro2d.gnu.TEST.MPI.SDC.ex() [0x41e90e]
    _start
/raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.H:48:23