if opt_verbose.value > 1 then
print "# Performance Analysis:"
print sys.perfs
+
+ print "# {model.unknown_types.length} unknown types:"
+ var c = 0
+ for id, ntype in model.unknown_types do
+ print "* {id}"
+ c += 1
+ if c > 100 then
+ print "* ..."
+ break
+ end
+ end
end