=== 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(+0x14fd15) [0x558653de8d15] 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(+0x151b93) [0x558653deab93] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: /lib64/libc.so.6(+0x3c6b0) [0x7fe043c0b6b0] __restore_rt ??:0 3: /lib64/libc.so.6(gsignal+0x145) [0x7fe043c0b625] raise ??:0 4: /lib64/libc.so.6(abort+0x12b) [0x7fe043bf48d9] abort ??:0 5: /lib64/libc.so.6(+0x804af) [0x7fe043c4f4af] __libc_message ??:0 6: /lib64/libc.so.6(+0x87a9c) [0x7fe043c56a9c] .annobin_top_check.start ??:0 7: /lib64/libc.so.6(+0x8992c) [0x7fe043c5892c] _int_free ??:0 8: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x5ed7f) [0x558653cf7d7f] amrex::BaseFab::clear() /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:1598:26 9: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x6a37c) [0x558653d0337c] amrex::BaseFab::~BaseFab() inlined at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FArrayBox.H:242:28 in Castro::construct_mol_hydro_source(double, double, amrex::MultiFab&) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:1497:5 amrex::FArrayBox::~FArrayBox() /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_FArrayBox.H:242:28 Castro::construct_mol_hydro_source(double, double, amrex::MultiFab&) /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_mol_hydro.cpp:64:15 10: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x3f15e) [0x558653cd815e] Castro::do_advance_sdc(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_sdc.cpp:183:28 11: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x3b080) [0x558653cd4080] Castro::advance(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:61:42 12: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x19d0b4) [0x558653e360b4] amrex::Amr::timeStep(int, double, int, int, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2121:36 13: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1907ca) [0x558653e297ca] std::vector >::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 >::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 14: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x1f346) [0x558653cb8346] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:152:33 15: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fe043bf61a3] __libc_start_main ??:0 16: ./Castro2d.gnu.TEST.MPI.TRUESDC.ex(+0x23a8e) [0x558653cbca8e] _start ??:0