A pilot-only run froze at t~150.7s (frozen.py: max_pixel_delta=0), found by
accident when the sweep-free experiment aborted at startup and the run flew with
no script probe attached. The tally is now 3-of-3 frozen with the probe versus
1-of-3 without, not 3-versus-0. Still a lean, but not the clean separation the
previous entry claimed, and marked down accordingly -- the fourth time a freeze
conclusion here has had to be softened by one more run.
The sweep-free test itself could not run: ScriptMission is re-allocated per run,
so the address from an earlier run (0xBC7A2A20) read back all zeros. The cheap
self-consistency check ([m+44] must equal the phase's [+244]) rejected it
instead of reporting garbage, which is the part that worked.
Names the cheaper replacement: a BOUNDED pointer scan. Every ScriptMission seen
so far sits in 0xBC79xxxx-0xBC7Axxxx, so ~32MB instead of ~371MB would cut the
sweep cost roughly tenfold. Not yet implemented.
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