OPT-04 phase-I descriptive report

Publication opt04-20261013T172839Z-bf1844fdf81c94c82ca91aadbd9d0988c7367093c5cf70269c2d0e0ca7d44b2f; native source opt04-20261013T172839Z-6451c4b89d3b.

Measured scope

Five analytic equality/nonnegative feasibility fixtures; phase-one-bland and HiGHS reference; 70 measured attempts plus 10 excluded warmups; fresh requests and workspaces; setup, BoundWorkspace.run, independent verification and input-to-verified-result timing; process startup and serialization excluded

Saved trial summaries

FixtureSidePhaseCountMedian nsMin nsMax ns
trianglephase-one-blandsetup75200330014400
trianglephase-one-blandpublic_run7253001830050500
trianglephase-one-blandverification75900520012100
trianglephase-one-blandend_to_end7370002690077300
trianglehighs-referencesetup75200370019900
trianglehighs-referencepublic_run7202700182600283500
trianglehighs-referenceverification7650057008600
trianglehighs-referenceend_to_end7213000193700297400
signed_trianglephase-one-blandsetup7560044006800
signed_trianglephase-one-blandpublic_run7260002130036100
signed_trianglephase-one-blandverification7600053006500
signed_trianglephase-one-blandend_to_end7384003140049500
signed_trianglehighs-referencesetup7550041006900
signed_trianglehighs-referencepublic_run7200200185900248600
signed_trianglehighs-referenceverification76500600010100
signed_trianglehighs-referenceend_to_end7211500197300264400
edgephase-one-blandsetup7620038009500
edgephase-one-blandpublic_run7238001490038800
edgephase-one-blandverification75900510015100
edgephase-one-blandend_to_end7374002390056400
edgehighs-referencesetup7490035008600
edgehighs-referencepublic_run7210100193600294300
edgehighs-referenceverification76700620010000
edgehighs-referenceend_to_end7228800205000304900
duplicate_tiephase-one-blandsetup75600300010000
duplicate_tiephase-one-blandpublic_run7165001140026900
duplicate_tiephase-one-blandverification7690064009900
duplicate_tiephase-one-blandend_to_end7294002100046300
duplicate_tiehighs-referencesetup7510035007900
duplicate_tiehighs-referencepublic_run7208200180900262800
duplicate_tiehighs-referenceverification76500610014400
duplicate_tiehighs-referenceend_to_end7220000191900280900
contradictory_rowsphase-one-blandsetup75800370012300
contradictory_rowsphase-one-blandpublic_run7215001550028200
contradictory_rowsphase-one-blandverification7300029004700
contradictory_rowsphase-one-blandend_to_end7337002420036500
contradictory_rowshighs-referencesetup7520033007000
contradictory_rowshighs-referencepublic_run7213500187100267500
contradictory_rowshighs-referenceverification7210019003000
contradictory_rowshighs-referenceend_to_end7221000194600278200

Failures: 0; missing: 0. The contradictory_rows fixture retains its expected infeasible outcome; these attempts are included.

Evidence limits

Descriptive five-fixture report; feasibility-numerics support remains Unestablished; Unvalidated binary64 checks, no exact feasibility certificate or complete solution family; No speedup, application-scale or scalability claim; limiter attribution remains unestablished; Collinear-input acceptance and OPT-04 issue #29 remain outside this report; Five small analytic equality/nonnegative fixtures only.; No exact or validated arithmetic feasibility certificate is claimed.; No application-scale, scalability, or speedup claim is made.; The collinear-input acceptance case is not included; OPT-04 issue #29 remains open.; A witness sample is not the complete feasible or optimal solution family.

Source commit 03ba157eb50eac7d61d39e37af015729ea04f922; harness commit d68f57f1530f69039a7881f950566167683eb222.

Saved descriptive timing figure · Typed native records · All trials and warmups · Versioned envelope · Publication manifest

Complete native source evidence