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authorYuren Hao <yurenh2@illinois.edu>2026-07-25 14:10:23 -0500
committerYuren Hao <yurenh2@illinois.edu>2026-07-25 14:10:23 -0500
commit26c7c7df7c6aca6dae6ec2c9c13747be9d968ec8 (patch)
tree7dd7dd4ffe34da9c23eb920182951f3885f745df
parent1c89d1b5bee0349aa6a2f39f44ac68e751562a94 (diff)
RESULT 61b: 哨戒21连报警=地板噪声假阳性(resK=1.4e-6完美收敛,rho伪读数),R61'合规血统天花板沉到1.5e-3'撤回; b15真实限制因子=未知,押后BP锚点; 探针判决规则修复(rho>1仅在resK离地板时计数)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn
-rw-r--r--docs/campaign/CASCADE_ABLATION_PLAN.md13
-rw-r--r--ep_run/probe_cx3_rhogrid.py4
2 files changed, 16 insertions, 1 deletions
diff --git a/docs/campaign/CASCADE_ABLATION_PLAN.md b/docs/campaign/CASCADE_ABLATION_PLAN.md
index 7c55675..426410a 100644
--- a/docs/campaign/CASCADE_ABLATION_PLAN.md
+++ b/docs/campaign/CASCADE_ABLATION_PLAN.md
@@ -568,6 +568,19 @@ direction), not training-under-fault; wave-2 = co-training with faults injected
+### RESULT 61b (2026-07-25): CORRECTION — the sentinel's 21 DIVERGE alerts were FLOOR-NOISE
+FALSE POSITIVES; b15's corridor at 1.5e-3 was HEALTHY through 300k+; its true limiter is UNKNOWN.
+Row audit: s255000 @1.5e-3 resK=1.40e-6 (= fp floor, fully converged), rho_tail 1.0032 — the
+documented rho~noise/noise-at-floor artifact, which I had discounted manually at s200000 but
+failed to encode in the sentinel verdict rule (instrument-made ghost evidence). R61's claim
+"compliant lineage also sank its ceiling to 1.5e-3" is RETRACTED. What actually bounded b15
+(best 3.4643; r18316 amp-noise backstop halvings at res>0.02 = frequent transient beta dips;
+late val 3.7-3.9, gn 0.32) is an OPEN question, deferred behind the BP anchor per the user's
+order. Probe verdict rule fixed: rho>1 only counts when resK is materially off-floor (>1e-4).
+Wider lesson for the dossier: at C768 the ONLY trustworthy stability instrument so far is the
+offline fp32 probe read by resK-to-floor; every in-band and rho-based verdict has now produced
+at least one false conviction.
+
### RESULT 61 (2026-07-25): EP-SIDE DIAGNOSTICS HALTED FOR THE BP ANCHOR (user call:
"这种情况下应该先跑bp baseline"). b15 postmortem seals the C768 picture: the COMPLIANT
beta=1.5e-3 lineage ALSO sank its ceiling to 1.5e-3 (sentinel: operating row DIVERGE for 5
diff --git a/ep_run/probe_cx3_rhogrid.py b/ep_run/probe_cx3_rhogrid.py
index 7c27a2d..e154fec 100644
--- a/ep_run/probe_cx3_rhogrid.py
+++ b/ep_run/probe_cx3_rhogrid.py
@@ -123,7 +123,9 @@ for spec in a.ckpts.split(','):
if res_list[i - 1] > 1e-7]
tail = ratios[-6:] if len(ratios) >= 6 else ratios
rho_tail = float(np.median(tail)) if tail else float('nan')
- diverged = (not np.isfinite(res_list[-1])) or res_list[-1] > 1e-2 or rho_tail > 1.0
+ # resK-primary verdict: rho~1 AT THE FP FLOOR is noise/noise (documented artifact),
+ # not divergence — rho only counts when the residual is materially off-floor
+ diverged = (not np.isfinite(res_list[-1])) or res_list[-1] > 1e-2 or (rho_tail > 1.0 and res_list[-1] > 1e-4)
verdict = 'DIVERGE' if diverged else 'converge'
if diverged and bstar is None: bstar = beta
print(f'{beta:>7.3f} {res_list[0]:>10.2e} {(res_list[1] if len(res_list)>1 else float("nan")):>10.2e} '