Fixing invalid prefetch pointers #453

Job	Run time
cpp (ubuntu, no_sanitizers, with_exceptions, clang)	3m 20s
cpp (ubuntu, no_sanitizers, no_exceptions, gcc)	3m 11s
cpp (ubuntu, asan_ubsan, no_exceptions, gcc)	20m 19s
cpp (ubuntu, asan_ubsan, no_exceptions, clang)	10m 10s
cpp (ubuntu, asan_ubsan, with_exceptions, clang)	10m 5s
cpp (macos, no_sanitizers, no_exceptions, clang)	3m 25s
python (ubuntu, 3.10)	1m 21s
cpp (macos, no_sanitizers, with_exceptions, clang)	3m 55s
cpp (windows, no_sanitizers, no_exceptions, msvc)	4m 49s
python (macos, 3.9)	1m 54s
python (ubuntu, 3.12)	1m 24s
cpp (ubuntu, asan_ubsan, with_exceptions, gcc)	20m 26s
python (macos, 3.10)	1m 31s
cpp (windows, no_sanitizers, with_exceptions, msvc)	4m 45s
python (windows, 3.11)	2m 39s
cpp (ubuntu, no_sanitizers, with_exceptions, gcc)	3m 13s
python (ubuntu, 3.9)	1m 18s
python (windows, 3.13.2)	3m 52s
python (macos, 3.11)	1m 22s
python (macos, 3.13.2)	1m 37s
python (windows, 3.12)	2m 15s
python (windows, 3.10)	2m 13s
cpp (ubuntu, no_sanitizers, no_exceptions, clang)	3m 15s
python (ubuntu, 3.11)	1m 22s
python (macos, 3.12)	1m 30s
python (windows, 3.9)	2m 12s
python (ubuntu, 3.13.2)	1m 31s
	1h 58m 54s

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