From 697b9da074ad1ad79435481472f16d699f1890eb Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sun, 21 Jan 2018 15:52:23 +0100
Subject: [PATCH] prevent endless loop if factor finally equals 1

---
 src/spicelib/analysis/cktop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/spicelib/analysis/cktop.c b/src/spicelib/analysis/cktop.c
index e9b1fb075..3f72162cf 100644
--- a/src/spicelib/analysis/cktop.c
+++ b/src/spicelib/analysis/cktop.c
@@ -183,7 +183,7 @@ dynamic_gmin (CKTcircuit *ckt, long int firstmode,
             }
 
             if (iters > (3 * ckt->CKTdcTrcvMaxIter / 4))
-                factor = sqrt (factor);
+                factor = MAX(sqrt (factor), 1.00005);
 
             OldGmin = ckt->CKTdiagGmin;