From a85039363bec543231d2d09f724a26f03fc32776 Mon Sep 17 00:00:00 2001
From: m-kro <m.barthauer@t-online.de>
Date: Mon, 5 Feb 2024 15:13:21 +0100
Subject: [PATCH] stop foe lane search for incomplete routes ref #14201

Signed-off-by: m-kro <m.barthauer@t-online.de>
---
 src/microsim/devices/MSDevice_SSM.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/microsim/devices/MSDevice_SSM.cpp b/src/microsim/devices/MSDevice_SSM.cpp
index afe9386d73e4..14cc90b8cf75 100644
--- a/src/microsim/devices/MSDevice_SSM.cpp
+++ b/src/microsim/devices/MSDevice_SSM.cpp
@@ -2907,6 +2907,10 @@ MSDevice_SSM::findFoeConflictLane(const MSVehicle* foe, const MSLane* egoConflic
         }
         MSLane* const nextNonInternalLane = *laneIter;
         const MSLink* const link = foeLane->getLinkTo(nextNonInternalLane);
+        if (link == nullptr) {
+            // encountered incomplete route
+            return nullptr;
+        }
         // Set foeLane to first internal lane on the next junction
         foeLane = link->getViaLane();
         assert(foeLane == 0 || foeLane->isInternal());