+ if (!acyclic_graph_detail(result)){
+ XBT_ERROR("The DAX described in %s is not a DAG. It contains a cycle.",
+ basename((char*)filename));
+ xbt_dynar_foreach(result, cpt, file)
+ SD_task_destroy(file);
+ xbt_dynar_free_container(&result);
+ return NULL;
+ } else {
+ return result;
+ }