WARNING: ThreadSanitizer: data race (pid=98556)  Atomic write of size 8 at 0x7fffb695e118 by thread T2 (mutexes: read M0):    #0 _Py_atomic_store_ssize_relaxed /project/cpython/./Include/cpython/pyatomic_gcc.h:481:3 (python3.13+0x273c84) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #1 split_keys_entry_added /project/cpython/Objects/dictobject.c:225:5 (python3.13+0x273c84)    #2 insert_split_key /project/cpython/Objects/dictobject.c:1743:9 (python3.13+0x273c84)    #3 insertdict /project/cpython/Objects/dictobject.c:1796:25 (python3.13+0x263ec6) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #4 dict_dict_merge /project/cpython/./Include/cpython/pyatomic_gcc.h (python3.13+0x2698e2) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #5 dict_merge /project/cpython/Objects/dictobject.c:3807:15 (python3.13+0x2698e2)    #6 PyDict_Merge /project/cpython/Objects/dictobject.c:3897:12 (python3.13+0x27767c) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #7 dict_update_arg /project/cpython/Objects/dictobject.c (python3.13+0x27767c)    #8 dict_update_common /project/cpython/Objects/dictobject.c:3555:18 (python3.13+0x27767c)    #9 dict_update /project/cpython/Objects/dictobject.c:3573:9 (python3.13+0x27733c) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #10 method_vectorcall_VARARGS_KEYWORDS /project/cpython/Objects/descrobject.c:358:14 (python3.13+0x2009ca) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #11 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1eb0fa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #12 PyObject_Vectorcall /project/cpython/Objects/call.c:327:12 (python3.13+0x1eb0fa)    #13 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:813:23 (python3.13+0x3e38f2) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #14 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #15 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #16 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #17 _PyVectorcall_Call /project/cpython/Objects/call.c:285:24 (python3.13+0x1eb336) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #18 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb336)    #19 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #20 bounded_lru_cache_wrapper /project/cpython/./Modules/_functoolsmodule.c:1068:14 (python3.13+0x577a42) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #21 lru_cache_call /project/cpython/./Modules/_functoolsmodule.c:1334:14 (python3.13+0x5762aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #22 _PyObject_Call /project/cpython/Objects/call.c:361:18 (python3.13+0x1eb39b) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #23 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #24 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:1355:26 (python3.13+0x3e5b12) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #25 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #26 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #27 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #28 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x575e83) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #29 partial_vectorcall /project/cpython/./Modules/_functoolsmodule.c:262:25 (python3.13+0x575e83)    #30 _PyVectorcall_Call /project/cpython/Objects/call.c:285:24 (python3.13+0x1eb336) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #31 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb336)    #32 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #33 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:1355:26 (python3.13+0x3e5b12) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #34 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #35 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #36 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #37 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1ef685) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #38 method_vectorcall /project/cpython/Objects/classobject.c:62:18 (python3.13+0x1ef685)    #39 _PyVectorcall_Call /project/cpython/Objects/call.c:285:24 (python3.13+0x1eb336) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #40 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb336)    #41 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #42 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:1355:26 (python3.13+0x3e5b12) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #43 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #44 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #45 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #46 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1ef685) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #47 method_vectorcall /project/cpython/Objects/classobject.c:62:18 (python3.13+0x1ef685)    #48 _PyVectorcall_Call /project/cpython/Objects/call.c:285:24 (python3.13+0x1eb336) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #49 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb336)    #50 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #51 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:1355:26 (python3.13+0x3e5b12) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #52 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #53 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #54 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #55 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1ef7f0) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #56 method_vectorcall /project/cpython/Objects/classobject.c:92:18 (python3.13+0x1ef7f0)    #57 _PyVectorcall_Call /project/cpython/Objects/call.c:273:16 (python3.13+0x1eb3e3) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #58 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb3e3)    #59 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #60 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:1355:26 (python3.13+0x3e5b12) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #61 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #62 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #63 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #64 _PyObject_VectorcallDictTstate /project/cpython/Objects/call.c:135:15 (python3.13+0x1ea2ed) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #65 _PyObject_Call_Prepend /project/cpython/Objects/call.c:504:24 (python3.13+0x1ebde7) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #66 slot_tp_call /project/cpython/Objects/typeobject.c:9556:15 (python3.13+0x2f9738) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #67 _PyObject_MakeTpCall /project/cpython/Objects/call.c:242:18 (python3.13+0x1ea55c) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #68 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:166:16 (python3.13+0x1eb1b8) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #69 PyObject_Vectorcall /project/cpython/Objects/call.c:327:12 (python3.13+0x1eb1b8)    #70 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:813:23 (python3.13+0x3e38f2) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #71 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #72 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #73 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #74 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1ef73f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #75 method_vectorcall /project/cpython/Objects/classobject.c:70:20 (python3.13+0x1ef73f)    #76 _PyVectorcall_Call /project/cpython/Objects/call.c:273:16 (python3.13+0x1eb3e3) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #77 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb3e3)    #78 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #79 thread_run /project/cpython/./Modules/_threadmodule.c:337:21 (python3.13+0x568562) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #80 pythread_wrapper /project/cpython/Python/thread_pthread.h:243:5 (python3.13+0x4c1477) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)  Previous read of size 8 at 0x7fffb695e118 by thread T1 (mutexes: read M0):    #0 dict_dict_merge /project/cpython/Objects/dictobject.c:3776:42 (python3.13+0x2699cb) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #1 dict_merge /project/cpython/Objects/dictobject.c:3807:15 (python3.13+0x2699cb)    #2 PyDict_Merge /project/cpython/Objects/dictobject.c:3897:12 (python3.13+0x27767c) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #3 dict_update_arg /project/cpython/Objects/dictobject.c (python3.13+0x27767c)    #4 dict_update_common /project/cpython/Objects/dictobject.c:3555:18 (python3.13+0x27767c)    #5 dict_update /project/cpython/Objects/dictobject.c:3573:9 (python3.13+0x27733c) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #6 method_vectorcall_VARARGS_KEYWORDS /project/cpython/Objects/descrobject.c:358:14 (python3.13+0x2009ca) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #7 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1eb0fa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #8 PyObject_Vectorcall /project/cpython/Objects/call.c:327:12 (python3.13+0x1eb0fa)    #9 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:813:23 (python3.13+0x3e38f2) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #10 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #11 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #12 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #13 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1ef7f0) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #14 method_vectorcall /project/cpython/Objects/classobject.c:92:18 (python3.13+0x1ef7f0)    #15 _PyVectorcall_Call /project/cpython/Objects/call.c:273:16 (python3.13+0x1eb3e3) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #16 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb3e3)    #17 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #18 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:1355:26 (python3.13+0x3e5b12) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #19 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #20 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #21 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #22 _PyObject_VectorcallDictTstate /project/cpython/Objects/call.c:135:15 (python3.13+0x1ea2ed) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #23 _PyObject_Call_Prepend /project/cpython/Objects/call.c:504:24 (python3.13+0x1ebde7) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #24 slot_tp_call /project/cpython/Objects/typeobject.c:9556:15 (python3.13+0x2f9738) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #25 _PyObject_MakeTpCall /project/cpython/Objects/call.c:242:18 (python3.13+0x1ea55c) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #26 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:166:16 (python3.13+0x1eb1b8) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #27 PyObject_Vectorcall /project/cpython/Objects/call.c:327:12 (python3.13+0x1eb1b8)    #28 _PyEval_EvalFrameDefault /project/cpython/Python/generated_cases.c.h:813:23 (python3.13+0x3e38f2) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #29 _PyEval_EvalFrame /project/cpython/./Include/internal/pycore_ceval.h:119:16 (python3.13+0x3df9aa) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #30 _PyEval_Vector /project/cpython/Python/ceval.c:1814:12 (python3.13+0x3df9aa)    #31 _PyFunction_Vectorcall /project/cpython/Objects/call.c (python3.13+0x1eb76f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #32 _PyObject_VectorcallTstate /project/cpython/./Include/internal/pycore_call.h:168:11 (python3.13+0x1ef73f) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #33 method_vectorcall /project/cpython/Objects/classobject.c:70:20 (python3.13+0x1ef73f)    #34 _PyVectorcall_Call /project/cpython/Objects/call.c:273:16 (python3.13+0x1eb3e3) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #35 _PyObject_Call /project/cpython/Objects/call.c:348:16 (python3.13+0x1eb3e3)    #36 PyObject_Call /project/cpython/Objects/call.c:373:12 (python3.13+0x1eb465) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #37 thread_run /project/cpython/./Modules/_threadmodule.c:337:21 (python3.13+0x568562) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)    #38 pythread_wrapper /project/cpython/Python/thread_pthread.h:243:5 (python3.13+0x4c1477) (BuildId: ec7bf2b242541cde4f3e3f0459fbc7b3819b41b0)