diff --git a/src/main.c b/src/main.c
index e6f3ecb..9b07e0a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -52,7 +52,9 @@ int main(int argc, char **argv)
     arrowList->space = (int*) malloc(sizeof(int)*ARROW_NUMBER);
     arrowList->size = ARROW_NUMBER;
     
-    printf("globalPreemptionSpace: %p, size: %d\n", globalPreemptionSpace, globalDrawingSpace->size);
-    printf("globalDrawingSpace: %p, size: %d\n", globalDrawingSpace, globalDrawingSpace->size);
-    printf("arrowList: %p, size: %d\n", arrowList, arrowList->size);
+    printf("globalPreemptionSpace: %p, size: %lu\n", globalPreemptionSpace, globalDrawingSpace->size);
+    printf("globalDrawingSpace: %p, size: %lu\n", globalDrawingSpace, globalDrawingSpace->size);
+    printf("arrowList: %p, size: %lu\n", arrowList, arrowList->size);
+
+    return 0;
 }
diff --git a/src/scheduler.c b/src/scheduler.c
index e69de29..784221b 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -0,0 +1,32 @@
+//=-------------------------------------------------------------------------=//
+//  Scheduler module                                                         //
+//                                                                           //
+//  Copyright © 2021 The Gem-graph Project                                   //
+//                                                                           //
+//  This file is part of gem-graph.                                          //
+//                                                                           //
+//  This program is free software: you can redistribute it and/or modify     //
+//  it under the terms of the GNU Affero General Public License as           //
+//  published by the Free Software Foundation, either version 3 of the       //
+//  License, or (at your option) any later version.                          //
+//                                                                           //
+//  This program is distributed in the hope that it will be useful,          //
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of           //
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //
+//  GNU Affero General Public License for more details.                      //
+//                                                                           //
+//  You should have received a copy of the GNU Affero General Public License //
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.   //
+//=-------------------------------------------------------------------------=//
+
+#include <pthread.h>
+#include <stdio.h>
+#include <malloc.h>
+#include "../include/types.h"
+#include "../include/localthread.h"
+
+int SchedInit(BoolArray_t *globalePreemptionSpace, IntArray_t *transitionsTree,
+              IntArray_t *arrowList, int nmaxThread, int nmaxCycles)
+{
+  return 0;
+}