Add a session to replay lemmas on arrays (some proofs missing)

examples/regtests.sh

@@ -59,11 +59,16 @@ run_dir () {
     done
 }
 
-echo "=== Tests ==="
-run_dir tests
-run_dir tests-provers
+echo "=== Standard Library ==="
+run_dir ../lib/why3
 echo ""
 
+# there's no session there...
+# echo "=== Tests ==="
+# run_dir tests
+# run_dir tests-provers
+# echo ""
+
 echo "=== Check Builtin translation ==="
 run_dir check-builtin
 echo ""