=== If no file names and line numbers are shown below, one can run
            addr2line -Cfie my_exefile my_line_address
    to convert `my_line_address` (e.g., 0x4a6b) into file name and line number.

=== 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.OMP.ex() [0x4de0d6]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:105

 1: ./Castro2d.gnu.TEST.OMP.ex() [0x4df582]
    amrex::BLBackTrace::handler(int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:52

 2: /lib64/libstdc++.so.6(_Znwm+0x2c) [0x7fc6d8f893fc]
    ??
    ??:0

 3: ./Castro2d.gnu.TEST.OMP.ex() [0x4a55b5]
    amrex::BaseFab<double>::define()
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:1398
    amrex::BaseFab<double>::BaseFab(amrex::Box const&, int, bool, bool)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:1428
    amrex::FArrayBox::FArrayBox(amrex::Box const&, int, bool, bool)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FArrayBox.cpp:160

 4: ./Castro2d.gnu.TEST.OMP.ex() [0x47ee88]
    void std::vector<amrex::FArrayBox*, std::allocator<amrex::FArrayBox*> >::emplace_back<amrex::FArrayBox*>(amrex::FArrayBox*&&)
    /usr/include/c++/7/bits/vector.tcc:98
    std::vector<amrex::FArrayBox*, std::allocator<amrex::FArrayBox*> >::push_back(amrex::FArrayBox*&&)
    /usr/include/c++/7/bits/stl_vector.h:954
    amrex::FabArray<amrex::FArrayBox>::AllocFabs(amrex::FabFactory<amrex::FArrayBox> const&)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FabArray.H:1105

 5: ./Castro2d.gnu.TEST.OMP.ex() [0x4b3027]
    amrex::MultiFab::define(amrex::BoxArray const&, amrex::DistributionMapping const&, int, amrex::IntVect const&, amrex::MFInfo const&, amrex::FabFactory<amrex::FArrayBox> const&)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_MultiFab.cpp:551
    amrex::MultiFab::define(amrex::BoxArray const&, amrex::DistributionMapping const&, int, int, amrex::MFInfo const&, amrex::FabFactory<amrex::FArrayBox> const&)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_MultiFab.cpp:539

 6: ./Castro2d.gnu.TEST.OMP.ex() [0x41d8eb]
    Castro::initialize_advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:870

 7: ./Castro2d.gnu.TEST.OMP.ex() [0x41dfb8]
    Castro::advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:100

 8: ./Castro2d.gnu.TEST.OMP.ex() [0x50cc43]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:1926

 9: ./Castro2d.gnu.TEST.OMP.ex() [0x50475f]
    amrex::Amr::coarseTimeStep(double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2036

10: ./Castro2d.gnu.TEST.OMP.ex() [0x407b0a]
    main
    /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:132

11: /lib64/libc.so.6(__libc_start_main+0xea) [0x7fc6d81b4f2a]
    ??
    ??:0

12: ./Castro2d.gnu.TEST.OMP.ex() [0x40be2a]
    _start
    ??:?