diff -r f2ea4aac9ada -r c94ef40a22ce src/lemon/preflow.h
--- a/src/lemon/preflow.h	Mon Oct 25 13:29:46 2004 +0000
+++ b/src/lemon/preflow.h	Wed Oct 27 22:38:50 2004 +0000
@@ -140,7 +140,7 @@
       Preflow(const Graph& _G, Node _s, Node _t, 
 	      const CapMap& _capacity, FlowMap& _flow) :
 	g(&_G), s(_s), t(_t), capacity(&_capacity),
-	flow(&_flow), n(_G.nodeNum()), level(_G), excess(_G,0), 
+	flow(&_flow), n(countNodes(_G)), level(_G), excess(_G,0), 
 	flow_prop(NO_FLOW), status(AFTER_NOTHING) { }