=== 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.TRUESDC.ex(+0x149965) [0x55a9948dd965] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:167:39 1: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x14b7e3) [0x55a9948df7e3] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:71:8 2: /lib64/libc.so.6(+0x3c6b0) [0x7fa30076d6b0] __restore_rt ??:0 3: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x258967) [0x55a9949ec967] ca_mol_consup /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_mol_nd.F90:584 4: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x687ca) [0x55a9947fc7ca] amrex::begin(amrex::Box const&) inlined at /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:86:37 in Castro::construct_mol_hydro_source(double, double, amrex::MultiFab&) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_Box.H:1496:34 amrex::Array4 amrex::makeArray4(double*, amrex::Box const&, int) /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:86:37 amrex::BaseFab::array() /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:409:29 Castro::construct_mol_hydro_source(double, double, amrex::MultiFab&) /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_mol_hydro.cpp:448:50 5: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x3f7d6) [0x55a9947d37d6] Castro::do_advance_sdc(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_sdc.cpp:183:28 6: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x3b1f0) [0x55a9947cf1f0] Castro::advance(double, double, int, int) /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:61:42 7: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x18bbad) [0x55a99491fbad] amrex::Amr::timeStep(int, double, int, int, double) /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2121:36 8: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x17f4ca) [0x55a9949134ca] 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 9: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x1fc16) [0x55a9947b3c16] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:152:33 10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fa3007581a3] __libc_start_main ??:0 11: ./Castro1d.gnu.TEST.MPI.TRUESDC.ex(+0x243ee) [0x55a9947b83ee] _start ??:0