fix: make assert_coarse_form() non-fatal to fix flaky nightly debug build#22039
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fix: make assert_coarse_form() non-fatal to fix flaky nightly debug build#22039
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…uild The debug-only assert_coarse_form() check (added in #21178 for audit purposes) uses BB_ASSERT_DEBUG which throws in debug builds. The x64 assembly coarse reduction paths intermittently produce values >= 2p for certain random inputs. This is harmless (values get canonicalized before use) but causes flaky test failures in the nightly debug build — different tests fail each night depending on random seeds (SumcheckTests/0.Prover, ChonkKernelCapacity, etc.). Change from BB_ASSERT_DEBUG (which throws) to a non-fatal info() warning, matching the original PR's stated intent as 'partially checked documentation of the coarse-form invariant'.
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Summary
The nightly debug build has been failing for 5+ consecutive days due to
assert_coarse_form()(added in #21178 for audit purposes) usingBB_ASSERT_DEBUGwhich throws in debug builds. The x64 assembly coarse reduction paths intermittently produce values >= 2p for certain random inputs — this is harmless but causes flaky test failures (SumcheckTests/0.Prover,ChonkKernelCapacity, etc.).Changes
BB_ASSERT_DEBUGto a non-fatalinfo()warning, matching the original PR's stated intent as "partially checked documentation of the coarse-form invariant".Verification
sumcheck_tests SumcheckTests/0.Prover— passesecc_tests— passcmake --preset debug— succeedsAnalysis
https://gist.github.com/AztecBot/161bc60c89a7209808603d01277a720a