=== 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: ./main3d.gnu.TEST.OMP.ex() [0x535a06] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/microphysics-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:190:39 1: ./main3d.gnu.TEST.OMP.ex() [0x5385c9] amrex::BLBackTrace::handler(int) /raid/testing/microphysics-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:96:15 2: ./main3d.gnu.TEST.OMP.ex() [0x430b47] amrex::Error_host(char const*) /raid/testing/microphysics-gfortran/amrex//Src/Base/AMReX.cpp:217:1 3: ./main3d.gnu.TEST.OMP.ex() [0x54df1a] std::__cxx11::basic_string, std::allocator >::_Alloc_hider::_Alloc_hider(char*, std::allocator&&) inlined at /usr/include/c++/11/bits/basic_string.h:441:9 in init_reaclib() /usr/include/c++/11/bits/basic_string.h:168:36 std::__cxx11::basic_string, std::allocator >::basic_string() /usr/include/c++/11/bits/basic_string.h:441:9 init_reaclib() /raid/testing/microphysics-gfortran/Microphysics/unit_test/test_rhs/../../networks/ignition_reaclib/URCA-simple/reaclib_rates.H:41:17 4: ./main3d.gnu.TEST.OMP.ex() [0x54daae] network_init() /raid/testing/microphysics-gfortran/Microphysics/unit_test/test_rhs/../../interfaces/network_initialization.cpp:32:1 5: ./main3d.gnu.TEST.OMP.ex() [0x41c868] main_main() /raid/testing/microphysics-gfortran/Microphysics/unit_test/test_rhs/main.cpp:111:12 6: ./main3d.gnu.TEST.OMP.ex() [0x41609b] main /raid/testing/microphysics-gfortran/Microphysics/unit_test/test_rhs/main.cpp:29:20 7: /lib64/libc.so.6(+0x40440) [0x7fbad8840440] __libc_start_call_main /usr/src/debug/glibc-2.34-38.fc35.x86_64/csu/../sysdeps/nptl/libc_start_call_main.h:58:16 8: /lib64/libc.so.6(__libc_start_main+0x80) [0x7fbad88404f0] call_init inlined at /usr/src/debug/glibc-2.34-38.fc35.x86_64/csu/../csu/libc-start.c:376:5 in __libc_start_main@@GLIBC_2.34 /usr/src/debug/glibc-2.34-38.fc35.x86_64/csu/../csu/libc-start.c:128:20 __libc_start_main_impl /usr/src/debug/glibc-2.34-38.fc35.x86_64/csu/../csu/libc-start.c:376:5 9: ./main3d.gnu.TEST.OMP.ex() [0x419cb5] _start at ??:?