diff --git a/bench/Makefile b/bench/Makefile
index 207e3221..a40efcdd 100644
--- a/bench/Makefile
+++ b/bench/Makefile
@@ -399,6 +399,14 @@ bench-CC0:
 	@./bench-CC.exe 40
 	@./bench-CC.exe 41
 
+# VERSTABLE shall point to the source directory of VERSTABLE (where the headers are)
+bench-verstable:
+	@if test -n "$${VERSTABLE}" ; then $(MAKE) bench-verstable0 ; else echo "Nothing to be done for VERSTABLE." ; fi
+
+bench-verstable0:
+	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -I $${VERSTABLE}/ bench-verstable.c common.c -o bench-verstable.exe
+	@./bench-verstable.exe 40
+
 ############################################################################
 
 bench-mlib-json: bench-mlib
diff --git a/bench/bench-verstable.c b/bench/bench-verstable.c
new file mode 100644
index 00000000..6d6f1077
--- /dev/null
+++ b/bench/bench-verstable.c
@@ -0,0 +1,48 @@
+#define NDEBUG
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+
+#include "common.h"
+
+#define NAME umap_ulong
+#define KEY_TY unsigned long
+#define VAL_TY unsigned long
+#include "verstable.h"
+
+static void
+test_dict(size_t  n)
+{
+  umap_ulong dict;
+  umap_ulong_init(&dict);
+  
+  for (size_t i = 0; i < n; i++) {
+    unsigned long value = rand_get();
+    unsigned long key = rand_get();
+    umap_ulong_insert(&dict, key, value);
+  }
+  rand_init();
+  unsigned int s = 0;
+  for (size_t i = 0; i < n; i++) {
+    umap_ulong_itr it = umap_ulong_get(&dict, rand_get());
+    if (!umap_ulong_is_end(it) )
+      s += it.data->val;
+  }
+  g_result = s;
+
+  umap_ulong_cleanup(&dict);
+}
+
+/********************************************************************************************/
+
+const config_func_t table[] = {
+  { 40,    "dict",   1000000, 0, test_dict, 0},
+};
+
+int main(int argc, const char *argv[])
+{
+  test("CTL", numberof(table), table, argc, argv);
+  exit(0);
+}
+