. Thread 3 (LWP 5264): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 No locals. #1 0x00007f27c30076f5 in g_cond_wait_until (cond=cond@entry=0x2871998, mutex=mutex@entry=0x2871990, end_time=end_time@entry=598670146) at /build/buildd/glib2.0-2.38.0/./glib/gthread-posix.c:876 ts = {tv_sec = 598, tv_nsec = 670146000} status = #2 0x00007f27c2f9dc51 in g_async_queue_pop_intern_unlocked (queue=0x2871990, wait=wait@entry=1, end_time=598670146) at /build/buildd/glib2.0-2.38.0/./glib/gasyncqueue.c:424 retval = __FUNCTION__ = "g_async_queue_pop_intern_unlocked" #3 0x00007f27c2f9e218 in g_async_queue_timeout_pop_unlocked (queue=, timeout=timeout@entry=500000) at /build/buildd/glib2.0-2.38.0/./glib/gasyncqueue.c:572 end_time = #4 0x00007f27c2feca78 in g_thread_pool_wait_for_new_task (pool=0x2871930) at /build/buildd/glib2.0-2.38.0/./glib/gthreadpool.c:264 task = #5 g_thread_pool_thread_proxy (data=) at /build/buildd/glib2.0-2.38.0/./glib/gthreadpool.c:298 task = 0x298e8e0 pool = 0x2871930 #6 0x00007f27c2fec0e5 in g_thread_proxy (data=0x2858190) at /build/buildd/glib2.0-2.38.0/./glib/gthread.c:798 thread = 0x2858190 #7 0x00007f27c4d44f6e in start_thread (arg=0x7f27ba62b700) at pthread_create.c:311 __res = pd = 0x7f27ba62b700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139808607483648, 8871629220564294749, 0, 139808787124320, 140735460513328, 4096, -8840232912414188451, -8840053227138589603}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #8 0x00007f27c4a6fecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 2 (LWP 5257): #0 0x00007f27c4a6347d in poll () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007f27c2fc7694 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0x7f27b40010e0, timeout=-1, context=0x2827a00) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:4006 poll_func = 0x7f27c2fd6260 #2 g_main_context_iterate (context=0x2827a00, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3707 max_priority = 2147483647 timeout = -1 some_ready = nfds = 3 allocated_nfds = 3 fds = 0x7f27b40010e0 #3 0x00007f27c2fc7afa in g_main_loop_run (loop=0x2825c70) at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3906 __PRETTY_FUNCTION__ = "g_main_loop_run" #4 0x00007f27c28df9d6 in gdbus_shared_thread_func (user_data=0x2825cb0) at /build/buildd/glib2.0-2.38.0/./gio/gdbusprivate.c:278 data = 0x2825cb0 #5 0x00007f27c2fec0e5 in g_thread_proxy (data=0x280f400) at /build/buildd/glib2.0-2.38.0/./glib/gthread.c:798 thread = 0x280f400 #6 0x00007f27c4d44f6e in start_thread (arg=0x7f27bb23a700) at pthread_create.c:311 __res = pd = 0x7f27bb23a700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139808620128000, 8871629220564294749, 0, 139808787124320, 140735460512480, 4096, -8840234554702308259, -8840053227138589603}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #7 0x00007f27c4a6fecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 1 (LWP 5253): #0 0x00007f27c2fce3c9 in g_logv (log_domain=0x7f27c2901db8 "GLib-GIO", log_level=G_LOG_LEVEL_ERROR, format=, args=args@entry=0x7fff872196f8) at /build/buildd/glib2.0-2.38.0/./glib/gmessages.c:989 domain = 0x0 data = 0x0 depth = 1 log_func = 0x7f27c2fcdb60 domain_fatal_mask = masquerade_fatal = 0 test_level = was_fatal = was_recursion = msg = 0x3ec6c50 "Settings schema 'org.gnome.antler' is not installed\n" msg_alloc = 0x3ec6c50 "Settings schema 'org.gnome.antler' is not installed\n" i = 2 #1 0x00007f27c2fce512 in g_log (log_domain=log_domain@entry=0x7f27c2901db8 "GLib-GIO", log_level=log_level@entry=G_LOG_LEVEL_ERROR, format=format@entry=0x7f27c291f430 "Settings schema '%s' is not installed\n") at /build/buildd/glib2.0-2.38.0/./glib/gmessages.c:1025 args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff872197d0, reg_save_area = 0x7fff87219710}} #2 0x00007f27c28bf367 in g_settings_set_property (object=0x3ece2b0, prop_id=, value=, pspec=) at /build/buildd/glib2.0-2.38.0/./gio/gsettings.c:492 default_source = schema_id = 0x3f23380 "org.gnome.antler" settings = 0x3ece2b0 __FUNCTION__ = "g_settings_set_property" #3 0x00007f27c3295519 in object_set_property (nqueue=0x2c1bb40, value=, pspec=0x297ef20, object=0x3ece2b0) at /build/buildd/glib2.0-2.38.0/./gobject/gobject.c:1366 tmp_value = {g_type = 64, data = {{v_int = 66204544, v_uint = 66204544, v_long = 66204544, v_ulong = 66204544, v_int64 = 66204544, v_uint64 = 66204544, v_float = 1.42353055e-36, v_double = 3.2709390788985224e-316, v_pointer = 0x3f23380}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}} redirect = enable_diagnostic = 0x7f27c32c1b16 "0" class = 0x26e4400 param_id = 2 #4 g_object_new_internal (class=class@entry=0x26e4400, params=params@entry=0x7fff872198d0, n_params=n_params@entry=3) at /build/buildd/glib2.0-2.38.0/./gobject/gobject.c:1779 value = pspec = 0x297ef20 j = node = 0x2c1bb10 nqueue = 0x2c1bb40 object = 0x3ece2b0 __FUNCTION__ = "g_object_new_internal" #5 0x00007f27c3296e57 in g_object_newv (object_type=65835728, n_parameters=n_parameters@entry=3, parameters=parameters@entry=0x3ec7ee0) at /build/buildd/glib2.0-2.38.0/./gobject/gobject.c:1886 cparams = 0x7fff872198d0 i = j = 3 class = 0x26e4400 unref_class = 0x0 object = __PRETTY_FUNCTION__ = "g_object_newv" __FUNCTION__ = "g_object_newv" #6 0x00007f27c1d795a0 in pygobject_constructv (self=self@entry=0x2a0dd70, n_parameters=3, parameters=0x3ec7ee0) at ../../../gi/_gobject/gobjectmodule.c:986 obj = #7 0x00007f27c1d80ec9 in pygobject_init (self=0x2a0dd70, args=, kwargs=0x3f23f40) at ../../../gi/_gobject/pygobject.c:1272 object_type = 65835728 n_params = 3 i = params = 0x3ec7ee0 class = 0x26e4400 #8 0x000000000052020f in wrap_init.25179 (self=, args=, wrapped=, kwds=) at ../Objects/typeobject.c:4748 func = #9 0x000000000053bfb6 in PyObject_Call (kw=, arg=0x7f27c5119050, func=0x2a1c750) at ../Objects/abstract.c:2529 result = call = 0x5256e0 #10 PyEval_CallObjectWithKeywords (func=func@entry=0x2a1c750, arg=arg@entry=0x7f27c5119050, kw=kw@entry=0x3f23f40) at ../Python/ceval.c:3890 No locals. #11 0x00000000004d60f5 in wrapperdescr_call.11257 (descr=, args=, kwds=0x3f23f40) at ../Objects/descrobject.c:343 argc = self = func = 0x2a1c750 result = #12 0x00000000005301ae in PyObject_Call (kw=0x3f23f40, arg=0x2a13190, func=0x7f27c4fb7410) at ../Objects/abstract.c:2529 result = call = 0x4d5f80 #13 ext_do_call (nk=, na=, flags=, pp_stack=0x7fff87219bb0, func=0x7f27c4fb7410) at ../Python/ceval.c:4334 kwdict = 0x3f23f40 nstar = callargs = stararg = 0x0 result = 0x0 #14 PyEval_EvalFrameEx (f=f@entry=0x3ec9a00, throwflag=throwflag@entry=0) at ../Python/ceval.c:2705 flags = func = 0x7f27c4fb7410 na = nk = n = pfunc = 0x3ec9ba0 sp = 0x3ec9ba8 stack_pointer = next_instr = 0x2a0d898 "\001d" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3ec9b78 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts = enter = 0x7f27c512fde0 exit = 0x7f27c512fe10 #15 0x000000000050697a in PyEval_EvalCodeEx (closure=, defcount=, defs=0x2a02f08, kwcount=, kws=, argcount=, args=, locals=0x0, globals=, co=) at ../Python/ceval.c:3253 retval = 0x0 fastlocals = freevars = u = f = tstate = x = #16 function_call.15333 (func=func@entry=0x2a106e0, arg=arg@entry=0x2a02dd0, kw=kw@entry=0x0) at ../Objects/funcobject.c:526 argdefs = kwtuple = d = 0x2a02f08 k = nk = nd = #17 0x00000000004d53f4 in PyObject_Call (kw=0x0, arg=0x2a02dd0, func=0x2a106e0) at ../Objects/abstract.c:2529 result = call = 0x506690 #18 instancemethod_call.8798 (func=0x2a106e0, arg=0x2a02dd0, kw=0x0) at ../Objects/classobject.c:2602 self = klass = #19 0x000000000051bee6 in PyObject_Call (func=0x7f27c509e2d0, arg=, kw=) at ../Objects/abstract.c:2529 result = call = 0x4d52a0 #20 0x0000000000485990 in slot_tp_init.25824 (self=self@entry=0x2a0dd70, args=args@entry=0x7f27c1834890, kwds=kwds@entry=0x0) at ../Objects/typeobject.c:5692 init_str = 0x7f27c511a3f0 res = init_str = 0x7f27c511a3f0 #21 0x000000000051c0ab in type_call.25488 (type=, args=0x7f27c1834890, kwds=0x0) at ../Objects/typeobject.c:745 obj = 0x2a0dd70 #22 0x000000000052e3cb in PyObject_Call (kw=0x0, arg=0x7f27c1834890, func=0x3ecb430) at ../Objects/abstract.c:2529 result = call = 0x51bf70 #23 do_call (nk=, na=, pp_stack=0x7fff8721a140, func=0x3ecb430) at ../Python/ceval.c:4239 callargs = kwdict = 0x0 result = 0x0 #24 call_function (oparg=, pp_stack=0x7fff8721a140) at ../Python/ceval.c:4044 func = 0x3ecb430 w = na = nk = n = pfunc = 0x3eccbd8 x = #25 PyEval_EvalFrameEx (f=f@entry=0x3ecca50, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 sp = 0x3eccbe0 stack_pointer = next_instr = 0x7f27c4fae26c "|" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3eccbc8 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts = enter = 0x7f27c512fde0 exit = 0x7f27c512fe10 #26 0x000000000050697a in PyEval_EvalCodeEx (closure=, defcount=, defs=0x0, kwcount=, kws=, argcount=, args=, locals=0x0, globals=, co=) at ../Python/ceval.c:3253 retval = 0x0 fastlocals = freevars = u = f = tstate = x = #27 function_call.15333 (func=func@entry=0x2a10c80, arg=arg@entry=0x2716cb0, kw=kw@entry=0x0) at ../Objects/funcobject.c:526 argdefs = kwtuple = d = 0x0 k = nk = nd = #28 0x00000000004d53f4 in PyObject_Call (kw=0x0, arg=0x2716cb0, func=0x2a10c80) at ../Objects/abstract.c:2529 result = call = 0x506690 #29 instancemethod_call.8798 (func=0x2a10c80, arg=0x2716cb0, kw=0x0) at ../Objects/classobject.c:2602 self = klass = #30 0x000000000051bee6 in PyObject_Call (func=0x7f27c505af50, arg=, kw=) at ../Objects/abstract.c:2529 result = call = 0x4d52a0 #31 0x0000000000485990 in slot_tp_init.25824 (self=self@entry=0x2a1c610, args=args@entry=0x7f27c1834850, kwds=kwds@entry=0x0) at ../Objects/typeobject.c:5692 init_str = 0x7f27c511a3f0 res = init_str = 0x7f27c511a3f0 #32 0x000000000051c0ab in type_call.25488 (type=, args=0x7f27c1834850, kwds=0x0) at ../Objects/typeobject.c:745 obj = 0x2a1c610 #33 0x000000000052e3cb in PyObject_Call (kw=0x0, arg=0x7f27c1834850, func=0x3e5bdc0) at ../Objects/abstract.c:2529 result = call = 0x51bf70 #34 do_call (nk=, na=, pp_stack=0x7fff8721a6d0, func=0x3e5bdc0) at ../Python/ceval.c:4239 callargs = kwdict = 0x0 result = 0x0 #35 call_function (oparg=, pp_stack=0x7fff8721a6d0) at ../Python/ceval.c:4044 func = 0x3e5bdc0 w = na = nk = n = pfunc = 0x3e9bab8 x = #36 PyEval_EvalFrameEx (f=f@entry=0x3e9b930, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 sp = 0x3e9bac0 stack_pointer = next_instr = 0x7f27c4fa3ebc "|" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3e9baa8 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts = enter = 0x7f27c512fde0 exit = 0x7f27c512fe10 #37 0x000000000050697a in PyEval_EvalCodeEx (closure=, defcount=, defs=0x0, kwcount=, kws=, argcount=, args=, locals=0x0, globals=, co=) at ../Python/ceval.c:3253 retval = 0x0 fastlocals = freevars = u = f = tstate = x = #38 function_call.15333 (func=func@entry=0x7f27c1832de8, arg=arg@entry=0x7f27c1834550, kw=kw@entry=0x0) at ../Objects/funcobject.c:526 argdefs = kwtuple = d = 0x0 k = nk = nd = #39 0x00000000004d53f4 in PyObject_Call (kw=0x0, arg=0x7f27c1834550, func=0x7f27c1832de8) at ../Objects/abstract.c:2529 result = call = 0x506690 #40 instancemethod_call.8798 (func=0x7f27c1832de8, arg=0x7f27c1834550, kw=0x0) at ../Objects/classobject.c:2602 self = klass = #41 0x000000000051bee6 in PyObject_Call (func=0x7f27c509e320, arg=, kw=) at ../Objects/abstract.c:2529 result = call = 0x4d52a0 #42 0x0000000000487330 in slot_tp_call.25842 (self=0x7f27c1829c30, args=0x7f27c5119050, kwds=0x0) at ../Objects/typeobject.c:5432 call_str = 0x7f27c511a1b0 res = call_str = 0x7f27c511a1b0 #43 0x000000000052e3cb in PyObject_Call (kw=0x0, arg=0x7f27c5119050, func=0x7f27c1829c30) at ../Objects/abstract.c:2529 result = call = 0x487250 #44 do_call (nk=, na=, pp_stack=0x7fff8721ac30, func=0x7f27c1829c30) at ../Python/ceval.c:4239 callargs = kwdict = 0x0 result = 0x0 #45 call_function (oparg=, pp_stack=0x7fff8721ac30) at ../Python/ceval.c:4044 func = 0x7f27c1829c30 w = na = nk = n = pfunc = 0x3f25648 x = #46 PyEval_EvalFrameEx (f=f@entry=0x3f254b0, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 sp = 0x3f25650 stack_pointer = next_instr = 0x7f27c4fac138 "}\001" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3f25628 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts = enter = 0x7f27c512fde0 exit = 0x7f27c512fe10 #47 0x000000000050697a in PyEval_EvalCodeEx (closure=, defcount=, defs=0x0, kwcount=, kws=, argcount=, args=, locals=0x0, globals=, co=) at ../Python/ceval.c:3253 retval = 0x0 fastlocals = freevars = u = f = tstate = x = #48 function_call.15333 (func=func@entry=0x29f6b18, arg=arg@entry=0x7f27c18343d0, kw=kw@entry=0x0) at ../Objects/funcobject.c:526 argdefs = kwtuple = d = 0x0 k = nk = nd = #49 0x00000000004d53f4 in PyObject_Call (kw=0x0, arg=0x7f27c18343d0, func=0x29f6b18) at ../Objects/abstract.c:2529 result = call = 0x506690 #50 instancemethod_call.8798 (func=0x29f6b18, arg=0x7f27c18343d0, kw=0x0) at ../Objects/classobject.c:2602 self = klass = #51 0x000000000052e3cb in PyObject_Call (kw=0x0, arg=0x7f27c18343d0, func=0x7f27c505ae10) at ../Objects/abstract.c:2529 result = call = 0x4d52a0 #52 do_call (nk=, na=, pp_stack=0x7fff8721b0c0, func=0x7f27c505ae10) at ../Python/ceval.c:4239 callargs = kwdict = 0x0 result = 0x0 #53 call_function (oparg=, pp_stack=0x7fff8721b0c0) at ../Python/ceval.c:4044 func = 0x7f27c505ae10 w = na = nk = n = pfunc = 0x3e9fed8 x = #54 PyEval_EvalFrameEx (f=f@entry=0x3e9fd20, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 sp = 0x3e9fee0 stack_pointer = next_instr = 0x26bd840 "\001|" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3e9fe98 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts = enter = 0x7f27c512fde0 exit = 0x7f27c512fe10 #55 0x000000000050697a in PyEval_EvalCodeEx (closure=, defcount=, defs=0x7f27c18472d0, kwcount=, kws=, argcount=, args=, locals=0x0, globals=, co=) at ../Python/ceval.c:3253 retval = 0x0 fastlocals = freevars = u = f = tstate = x = #56 function_call.15333 (func=func@entry=0x29f6ed8, arg=arg@entry=0x2747a50, kw=kw@entry=0x0) at ../Objects/funcobject.c:526 argdefs = kwtuple = d = 0x7f27c18472d0 k = nk = nd = #57 0x00000000004d53f4 in PyObject_Call (kw=0x0, arg=0x2747a50, func=0x29f6ed8) at ../Objects/abstract.c:2529 result = call = 0x506690 #58 instancemethod_call.8798 (func=0x29f6ed8, arg=0x2747a50, kw=0x0) at ../Objects/classobject.c:2602 self = klass = #59 0x000000000052e3cb in PyObject_Call (kw=0x0, arg=0x2747a50, func=0x7f27c505adc0) at ../Objects/abstract.c:2529 result = call = 0x4d52a0 #60 do_call (nk=, na=, pp_stack=0x7fff8721b550, func=0x7f27c505adc0) at ../Python/ceval.c:4239 callargs = kwdict = 0x0 result = 0x0 #61 call_function (oparg=, pp_stack=0x7fff8721b550) at ../Python/ceval.c:4044 func = 0x7f27c505adc0 w = na = nk = n = pfunc = 0x3f2daf0 x = #62 PyEval_EvalFrameEx (f=f@entry=0x3f2d960, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 sp = 0x3f2daf8 stack_pointer = next_instr = 0x7f27c183690c "\001d" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3f2dad8 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts = enter = 0x7f27c512fde0 exit = 0x7f27c512fe10 #63 0x000000000050697a in PyEval_EvalCodeEx (closure=, defcount=, defs=0x0, kwcount=, kws=, argcount=, args=, locals=0x0, globals=, co=) at ../Python/ceval.c:3253 retval = 0x0 fastlocals = freevars = u = f = tstate = x = #64 function_call.15333 (func=func@entry=0x29fe8c0, arg=arg@entry=0x7f27c5038998, kw=kw@entry=0x0) at ../Objects/funcobject.c:526 argdefs = kwtuple = d = 0x0 k = nk = nd = #65 0x00000000004d53f4 in PyObject_Call (kw=0x0, arg=0x7f27c5038998, func=0x29fe8c0) at ../Objects/abstract.c:2529 result = call = 0x506690 #66 instancemethod_call.8798 (func=0x29fe8c0, arg=0x7f27c5038998, kw=0x0) at ../Objects/classobject.c:2602 self = klass = #67 0x000000000051bee6 in PyObject_Call (func=0x7f27c505ad20, arg=, kw=) at ../Objects/abstract.c:2529 result = call = 0x4d52a0 #68 0x0000000000485990 in slot_tp_init.25824 (self=self@entry=0x2a0d410, args=args@entry=0x7f27c504d450, kwds=kwds@entry=0x0) at ../Objects/typeobject.c:5692 init_str = 0x7f27c511a3f0 res = init_str = 0x7f27c511a3f0 #69 0x000000000051c0ab in type_call.25488 (type=, args=0x7f27c504d450, kwds=0x0) at ../Objects/typeobject.c:745 obj = 0x2a0d410 #70 0x000000000052e3cb in PyObject_Call (kw=0x0, arg=0x7f27c504d450, func=0x3e8c610) at ../Objects/abstract.c:2529 result = call = 0x51bf70 #71 do_call (nk=, na=, pp_stack=0x7fff8721bae0, func=0x3e8c610) at ../Python/ceval.c:4239 callargs = kwdict = 0x0 result = 0x0 #72 call_function (oparg=, pp_stack=0x7fff8721bae0) at ../Python/ceval.c:4044 func = 0x3e8c610 w = na = nk = n = pfunc = 0x3e9f7d0 x = #73 PyEval_EvalFrameEx (f=f@entry=0x3e9f650, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666 sp = 0x3e9f7d8 stack_pointer = next_instr = 0x7f27c1833912 "|" opcode = oparg = why = WHY_NOT err = x = v = w = u = t = stream = 0x0 fastlocals = 0x3e9f7c8 freevars = retval = tstate = co = instr_ub = -1 instr_lb = 0 instr_prev = -1 first_instr = names = consts =