Fixing invalid prefetch pointers #454

Job	Run time
cpp (ubuntu, no_sanitizers, no_exceptions, clang)	3m 27s
cpp (ubuntu, no_sanitizers, with_exceptions, gcc)	3m 7s
cpp (windows, no_sanitizers, with_exceptions, msvc)	6m 47s
cpp (ubuntu, asan_ubsan, with_exceptions, clang)	10m 18s
cpp (ubuntu, asan_ubsan, no_exceptions, clang)	10m 7s
cpp (ubuntu, asan_ubsan, no_exceptions, gcc)	20m 13s
cpp (ubuntu, no_sanitizers, with_exceptions, clang)	3m 33s
cpp (windows, no_sanitizers, no_exceptions, msvc)	5m 4s
cpp (ubuntu, no_sanitizers, no_exceptions, gcc)	3m 12s
cpp (macos, no_sanitizers, with_exceptions, clang)	3m 27s
cpp (ubuntu, asan_ubsan, with_exceptions, gcc)	20m 9s
python (ubuntu, 3.13.2)	1m 29s
cpp (macos, no_sanitizers, no_exceptions, clang)	3m 36s
python (ubuntu, 3.12)	1m 21s
python (ubuntu, 3.10)	1m 21s
python (windows, 3.9)	2m 44s
python (ubuntu, 3.11)	1m 23s
python (macos, 3.11)	1m 34s
python (windows, 3.12)	1m 56s
python (windows, 3.11)	2m 44s
python (macos, 3.13.2)	2m 1s
python (macos, 3.10)	1m 48s
python (windows, 3.13.2)	4m 29s
python (ubuntu, 3.9)	1m 21s
python (windows, 3.10)	2m 29s
python (macos, 3.12)	1m 35s
python (macos, 3.9)	1m 59s
	2h 3m 14s

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