=== 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: /raid/testing/maestroex-gfortran/amrex/Tools/Plotfile//fcompare.gnu.ex() [0x4f1296]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/maestroex-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:174:39

 1: /raid/testing/maestroex-gfortran/amrex/Tools/Plotfile//fcompare.gnu.ex() [0x4f2e98]
    amrex::BLBackTrace::handler(int)
/raid/testing/maestroex-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:80:8

 2: /raid/testing/maestroex-gfortran/amrex/Tools/Plotfile//fcompare.gnu.ex() [0x4165ea]
    std::_Vector_base<double, std::allocator<double> >::_M_allocate(unsigned long) inlined at /usr/include/c++/9/bits/stl_vector.h:358:25 in main_main()
/usr/include/c++/9/bits/stl_vector.h:343:18
std::_Vector_base<double, std::allocator<double> >::_M_create_storage(unsigned long)
/usr/include/c++/9/bits/stl_vector.h:358:25
std::_Vector_base<double, std::allocator<double> >::_Vector_base(unsigned long, std::allocator<double> const&)
/usr/include/c++/9/bits/stl_vector.h:302:9
std::vector<double, std::allocator<double> >::vector(unsigned long, double const&, std::allocator<double> const&)
/usr/include/c++/9/bits/stl_vector.h:521:47
amrex::Vector<double, std::allocator<double> >::vector(unsigned long, double const&, std::allocator<double> const&)
/raid/testing/maestroex-gfortran/amrex//Src/Base/AMReX_Vector.H:28:38
main_main()
/raid/testing/maestroex-gfortran/amrex/Tools/Plotfile/fcompare.cpp:198:41

 3: /raid/testing/maestroex-gfortran/amrex/Tools/Plotfile//fcompare.gnu.ex() [0x410ba0]
    main
/raid/testing/maestroex-gfortran/amrex/Tools/Plotfile/fcompare.cpp:364:22

 4: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fde0eb661a3]
    __libc_start_main
??:0

 5: /raid/testing/maestroex-gfortran/amrex/Tools/Plotfile//fcompare.gnu.ex() [0x41306e]
    _start
??:0