+#ifndef MC_MC_H
+#define MC_MC_H
+
+#include <simgrid/forward.h>
+#include <simgrid/modelchecker.h> /* our public interface (and definition of SIMGRID_HAVE_MC) */
+
+/* Maximum size of the application heap.
+ *
+ * The model-checker heap is placed at this offset from the beginning of the application heap.
+ *
+ * In the current implementation, if the application uses more than this for the application heap the application heap
+ * will smash the beginning of the model-checker heap and bad things will happen.
+ *
+ * For 64 bits systems, we have a lot of virtual memory available so we wan use a much bigger value in order to avoid
+ * bad things from happening.
+ * */