+SG_BEGIN_DECL()
+
+XBT_PUBLIC(int) MC_random(int min, int max);
+
+#if SIMGRID_HAVE_MC
+
+/* Internal variable used to check if we're running under the MC
+ *
+ * Please don't use directly: you should use MC_is_active. */
+extern XBT_PUBLIC(int) _sg_do_model_check;
+extern XBT_PUBLIC(int) _sg_mc_max_visited_states;
+
+#define MC_is_active() _sg_do_model_check
+#define MC_visited_reduction() _sg_mc_max_visited_states
+
+/** Assertion for the model-checker
+ *
+ * This function is used to define safety properties to verify.
+ */