Worker A reported nine worklist rows graded exact that are not function
starts. The coordinator verified the tell independently: a candidate whose
first instruction reads a register the range never defines (non-parameter),
or whose range has no jr/jalr return, is a wrong extent. Measured disjoint
from the matched corpus (7 worklist rows flagged incl. the runaway
0x801800C4 and the fallthrough 4-byte rows 0x80100808/0x80180808; 0 of 288
registered flagged). Implemented as excluded_bad_extent_start in sf3_triage
with 4 synthetic tests; worklist regenerated to 1,570 eligible rows.
Christopher Williams
6d3a6ba434