=== 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: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x140215) [0x55b09f6e4215] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39 1: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x1420b6) [0x55b09f6e60b6] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x797d5) [0x55b09f61d7d5] amrex::Abort(char const*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:201:9 3: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x3c90d) [0x55b09f5e090d] Castro::subcycle_advance_ctu(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:456:21 4: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x3a1ea) [0x55b09f5de1ea] double const& std::min(double const&, double const&) inlined at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:92 in Castro::advance(double, double, int, int) /usr/include/c++/9/bits/stl_algobase.h:205:14 Castro::advance(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:92 5: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x183afd) [0x55b09f727afd] amrex::Amr::timeStep(int, double, int, int, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2121:36 6: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x17741a) [0x55b09f71b41a] 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 7: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x205b6) [0x55b09f5c45b6] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:152:33 8: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fd8950a81a3] __libc_start_main ??:0 9: ./Castro1d.gnu.TEST.MPI.OMP.ex(+0x24d8e) [0x55b09f5c8d8e] _start ??:0