Move_base actionlib goal doesn't change to SUCCEED

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Hi all, I'm trying to made a random waypoints generator in ROS Indigo for my autonomous navigation simulator (made in Gazebo 2.2). The robot moves without problem within the map when i send them goal publishing /move_base_simple/goal or using the 2D nav goal features on Rviz, but i always get that the status of the goals is (for ex.)

id: /move_base-3-1771.985000000
 status: 1
 text: This goal has been accepted by the simple action server

and it doesn't change when the robot reaches the goal (it should be SUCCEED, so = 3). For my generator, at the beginning i'm using this code as test

#include <ros/ros.h>
#include <move_base_msgs/MoveBaseAction.h>
#include <actionlib/client/simple_action_client.h>
typedef actionlib::SimpleActionClient<move_base_msgs::MoveBaseAction> MoveBaseClient;

int main(int argc, char** argv){
 ros::init(argc, argv, "simple_navigation_goals");
 MoveBaseClient ac("move_base", true);
 while(!ac.waitForServer(ros::Duration(5.0))){
  ROS_INFO("Waiting for the move_base action server to come up");
 }
 move_base_msgs::MoveBaseGoal goal;
 goal.target_pose.header.frame_id = "base_link";
 goal.target_pose.header.stamp = ros::Time::now();
 goal.target_pose.pose.position.x = 1.0;
 goal.target_pose.pose.orientation.w = 1.0;
 ROS_INFO("Sending goal");
 ac.sendGoal(goal);
 ac.waitForResult();
 if(ac.getState() == actionlib::SimpleClientGoalState::ACTIVE)
  ROS_INFO("Hooray, the base moved 1 meter forward"); 
 else  ROS_INFO("The base failed to move forward 1 meter for some reason");
 return 0;
}

and, when i run it, the robot does 1 meter in front of it, but the goal status get stuck on 1 (ACTIVE). I've tried to find something within the ROS answer and someone suggests that it could be something related to the odom message where the vx and vy must be zero after the reaching of the goal, otherwise the navigation stack continues to adjust everything and the goal will never be reached: based on it I've seen that the odom topic coming from gazebo doesnt have the twist setted to zero when the robot reaches the goal...could it be the problem?? thanks in advance