diff -r b0ff69f0a248 -r 39f73a59e855 src/HOL/SMT/Examples/cert/z3_linarith_14
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/HOL/SMT/Examples/cert/z3_linarith_14	Tue Oct 20 10:11:30 2009 +0200
@@ -0,0 +1,8 @@
+(benchmark Isabelle
+:extrafuns (
+  (uf_1 Int)
+ )
+:assumption (< 0 uf_1)
+:assumption (not (distinct uf_1 (* uf_1 2) (- uf_1 uf_1)))
+:formula true
+)