From 5c401b7a97cd0ce461b2b2c972eacd558c8d5254 Mon Sep 17 00:00:00 2001
From: J08nY
Date: Mon, 24 Mar 2025 17:27:46 +0100
Subject: Improve bound for Hilbert walkdown.

---
 src/cm/cm_any.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/cm/cm_any.c b/src/cm/cm_any.c
index affdd7a..ae6f7f4 100644
--- a/src/cm/cm_any.c
+++ b/src/cm/cm_any.c
@@ -421,8 +421,9 @@ GENERATOR(cm_gen_curve_unique) {
 			d = mulii(d, mul);
 			debug_log("d %Pi", d);
 		}
-		if (logint(d, gen_2) > 64) {
-            debug_log("Discriminant too large after walkdown (%Pi).", d);
+		long dsize = logint(d, gen_2);
+		if (dsize > 30) {
+            debug_log("Discriminant too large after walkdown (d = %Pi, %li bits).", d, dsize);
             avma = ltop;
             return -3;
         }
-- 
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