Program: 19942
Project: 19942
Buggy source:
public boolean onTouch(View v,MotionEvent event){
  action=event.getAction();
  if (event.getPointerCount() > 1) {
    actionCode=action & MotionEvent.ACTION_MASK;
    action=event.getAction();
    for (int i=0; i < event.getPointerCount(); i++) {
      if (i == 0) {
        xFirstTouch=(int)event.getX(i) - screenWidth / 2;
        yFirstTouch=screenHeight / 2 - (int)event.getY(i);
        if (!Joystick.joystickInUse && Joystick.joystickDown && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
          Joystick.joystickInUse=true;
        }
 else         if (Joystick.joystickInUse) {
          Joystick.useJoystick(xFirstTouch,yFirstTouch,(int)event.getX(),(int)event.getY(),wrapper);
          if (Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) > JOYSTICK_TRESHOLD) {
            Joystick.joystickDown=false;
            Joystick.joystickInUse=false;
            wrapper.player.movementAcceleration=-6;
          }
        }
      }
      if (i == 1) {
        xSecondTouch=(int)event.getX(i) - screenWidth / 2;
        ySecondTouch=screenHeight / 2 - (int)event.getY(i);
        if (weaponManager.currentWeapon == WeaponManager.WEAPON_SPITFIRE && xSecondTouch > (screenWidth / 2) - 100 * Options.scaleX && xSecondTouch < (screenWidth / 2) && ySecondTouch < yFirstButtonBorder) {
          weaponManager.triggerPlayerShoot(xSecondTouch,ySecondTouch);
        }
 else         if (weaponManager.isUsingMotionEvents) {
          if (pointerCount < 10) {
            if (Math.abs(touchPath[pointerCount - 1][0] - xFirstTouch) >= 8 || Math.abs(touchPath[pointerCount - 1][1] - yFirstTouch) >= 8) {
              setPathPoint(xFirstTouch,yFirstTouch,pointerCount);
              pointerCount++;
            }
          }
        }
      }
    }
    if (actionCode == MotionEvent.ACTION_POINTER_DOWN) {
      if (xSecondTouch > (screenWidth / 2) - 100 * Options.scaleX && xSecondTouch < (screenWidth / 2) && ySecondTouch < yFirstButtonBorder) {
        if (ySecondTouch < yThirdButtonBorder && ySecondTouch > (-screenHeight / 2)) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_1);
        }
 else         if (ySecondTouch < ySecondButtonBorder && ySecondTouch > yThirdButtonBorder) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_2);
        }
      }
 else {
        weaponManager.triggerPlayerShoot(xSecondTouch,ySecondTouch);
      }
    }
    if (actionCode == MotionEvent.ACTION_POINTER_UP) {
      Log.d("String_Node_Str","String_Node_Str");
      if (weaponManager.isUsingMotionEvents) {
        weaponManager.triggerMotionShoot(touchPath);
        for (int i=0; i < 10; i++) {
          touchPath[i][0]=0;
          touchPath[i][1]=0;
        }
        pointerCount=1;
      }
    }
  }
 else {
    xFirstTouch=(int)event.getX() - screenWidth / 2;
    yFirstTouch=screenHeight / 2 - (int)event.getY();
    if (event.getAction() == MotionEvent.ACTION_DOWN) {
      xFirstTouch=(int)event.getX() - screenWidth / 2;
      yFirstTouch=screenHeight / 2 - (int)event.getY();
      if (xFirstTouch > (screenWidth / 2) - 100 * Options.scaleX && xFirstTouch < (screenWidth / 2) && yFirstTouch < yFirstButtonBorder) {
        if (yFirstTouch < yThirdButtonBorder && yFirstTouch > (-screenHeight / 2)) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_1);
        }
 else         if (yFirstTouch < ySecondButtonBorder && yFirstTouch > yThirdButtonBorder) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_2);
        }
      }
      if (joystickX != 0 && joystickY != 0 && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
        Joystick.joystickDown=true;
      }
 else {
        if (xFirstTouch < (screenWidth / 2) - 100 * Options.scaleX && yFirstTouch > yFirstButtonBorder) {
          weaponManager.triggerPlayerShoot(event.getX() - screenWidth / 2,-((-screenHeight / 2) + event.getY()));
        }
      }
    }
    if (event.getAction() == MotionEvent.ACTION_MOVE) {
      xFirstTouch=(int)event.getX() - screenWidth / 2;
      yFirstTouch=screenHeight / 2 - (int)event.getY();
      if (joystickX != 0 && joystickY != 0 && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
        Joystick.joystickDown=true;
      }
 else       if (weaponManager.currentWeapon == WeaponManager.WEAPON_SPITFIRE) {
        weaponManager.triggerPlayerShoot(xFirstTouch,yFirstTouch);
      }
      if (weaponManager.isUsingMotionEvents) {
        if (pointerCount < 10) {
          if (Math.abs(touchPath[pointerCount - 1][0] - xFirstTouch) >= 8 || Math.abs(touchPath[pointerCount - 1][1] - yFirstTouch) >= 8) {
            setPathPoint(xFirstTouch,yFirstTouch,pointerCount);
            pointerCount++;
          }
        }
      }
      if (!Joystick.joystickInUse && Joystick.joystickDown && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
        Joystick.joystickInUse=true;
      }
 else       if (Joystick.joystickInUse) {
        Joystick.useJoystick(xFirstTouch,yFirstTouch,(int)event.getX(),(int)event.getY(),wrapper);
        if (Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) > JOYSTICK_TRESHOLD) {
          Joystick.joystickDown=false;
          Joystick.joystickInUse=false;
          wrapper.player.movementAcceleration=-6;
        }
      }
    }
    if (event.getAction() == MotionEvent.ACTION_UP) {
      Joystick.joystickInUse=false;
      Joystick.joystickDown=false;
      wrapper.player.movementAcceleration=-6;
      if (weaponManager.isUsingMotionEvents) {
        weaponManager.triggerMotionShoot(touchPath);
        for (int i=0; i < 10; i++) {
          touchPath[i][0]=0;
          touchPath[i][1]=0;
        }
        pointerCount=1;
      }
      if (Math.abs(event.getX() - (xFirstTouch - screenWidth / 2)) < touchMarginal && Math.abs(event.getY() - (yFirstTouch - screenHeight / 2)) < touchMarginal) {
      }
    }
  }
  return true;
}

Fixed version (ground truth):
public boolean onTouch(View v,MotionEvent event){
  action=event.getAction();
  if (event.getPointerCount() > 1) {
    actionCode=action & MotionEvent.ACTION_MASK;
    action=event.getAction();
    for (int i=0; i < event.getPointerCount(); i++) {
      if (i == 0) {
        xFirstTouch=(int)event.getX(i) - screenWidth / 2;
        yFirstTouch=screenHeight / 2 - (int)event.getY(i);
        if (!Joystick.joystickInUse && Joystick.joystickDown && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
          Joystick.joystickInUse=true;
        }
 else         if (Joystick.joystickInUse) {
          Joystick.useJoystick(xFirstTouch,yFirstTouch,(int)event.getX(),(int)event.getY(),wrapper);
          if (Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) > JOYSTICK_TRESHOLD) {
            Joystick.joystickDown=false;
            Joystick.joystickInUse=false;
            wrapper.player.movementAcceleration=-6;
          }
        }
      }
      if (i == 1) {
        xSecondTouch=(int)event.getX(i) - screenWidth / 2;
        ySecondTouch=screenHeight / 2 - (int)event.getY(i);
        if (weaponManager.currentWeapon == WeaponManager.WEAPON_SPITFIRE && xSecondTouch > (screenWidth / 2) - 100 * Options.scaleX && xSecondTouch < (screenWidth / 2) && ySecondTouch < yFirstButtonBorder) {
          weaponManager.triggerPlayerShoot(xSecondTouch,ySecondTouch);
        }
 else         if (weaponManager.isUsingMotionEvents) {
          if (pointerCount < 10) {
            if (Math.abs(touchPath[pointerCount - 1][0] - xFirstTouch) >= 8 || Math.abs(touchPath[pointerCount - 1][1] - yFirstTouch) >= 8) {
              setPathPoint(xFirstTouch,yFirstTouch,pointerCount);
              pointerCount++;
            }
          }
        }
      }
    }
    if (actionCode == MotionEvent.ACTION_POINTER_DOWN) {
      if (xSecondTouch > (screenWidth / 2) - 100 * Options.scaleX && xSecondTouch < (screenWidth / 2) && ySecondTouch < yFirstButtonBorder) {
        if (ySecondTouch < yThirdButtonBorder && ySecondTouch > (-screenHeight / 2)) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_1);
        }
 else         if (ySecondTouch < ySecondButtonBorder && ySecondTouch > yThirdButtonBorder) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_2);
        }
      }
 else {
        weaponManager.triggerPlayerShoot(xSecondTouch,ySecondTouch);
      }
    }
    if (actionCode == MotionEvent.ACTION_POINTER_UP) {
      Log.d("String_Node_Str","String_Node_Str");
      Joystick.joystickDown=false;
      Joystick.joystickInUse=false;
      if (weaponManager.isUsingMotionEvents) {
        weaponManager.triggerMotionShoot(touchPath);
        for (int i=0; i < 10; i++) {
          touchPath[i][0]=0;
          touchPath[i][1]=0;
        }
        pointerCount=1;
      }
    }
  }
 else {
    xFirstTouch=(int)event.getX() - screenWidth / 2;
    yFirstTouch=screenHeight / 2 - (int)event.getY();
    if (event.getAction() == MotionEvent.ACTION_DOWN) {
      xFirstTouch=(int)event.getX() - screenWidth / 2;
      yFirstTouch=screenHeight / 2 - (int)event.getY();
      if (xFirstTouch > (screenWidth / 2) - 100 * Options.scaleX && xFirstTouch < (screenWidth / 2) && yFirstTouch < yFirstButtonBorder) {
        if (yFirstTouch < yThirdButtonBorder && yFirstTouch > (-screenHeight / 2)) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_1);
        }
 else         if (yFirstTouch < ySecondButtonBorder && yFirstTouch > yThirdButtonBorder) {
          Log.e("String_Node_Str","String_Node_Str");
          hud.triggerClick(Hud.BUTTON_2);
        }
      }
      if (joystickX != 0 && joystickY != 0 && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
        Joystick.joystickDown=true;
      }
 else {
        if (xFirstTouch < (screenWidth / 2) - 100 * Options.scaleX && yFirstTouch > yFirstButtonBorder || xFirstTouch < (screenWidth / 2) - 100 * Options.scaleX && yFirstTouch < yFirstButtonBorder || xFirstTouch > (screenWidth / 2) - 100 * Options.scaleX && yFirstTouch > yFirstButtonBorder) {
          weaponManager.triggerPlayerShoot(event.getX() - screenWidth / 2,-((-screenHeight / 2) + event.getY()));
        }
      }
    }
    if (event.getAction() == MotionEvent.ACTION_MOVE) {
      xFirstTouch=(int)event.getX() - screenWidth / 2;
      yFirstTouch=screenHeight / 2 - (int)event.getY();
      if (joystickX != 0 && joystickY != 0 && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
        Joystick.joystickDown=true;
      }
 else       if (weaponManager.currentWeapon == WeaponManager.WEAPON_SPITFIRE) {
        weaponManager.triggerPlayerShoot(xFirstTouch,yFirstTouch);
      }
      if (weaponManager.isUsingMotionEvents) {
        if (pointerCount < 10) {
          if (Math.abs(touchPath[pointerCount - 1][0] - xFirstTouch) >= 8 || Math.abs(touchPath[pointerCount - 1][1] - yFirstTouch) >= 8) {
            setPathPoint(xFirstTouch,yFirstTouch,pointerCount);
            pointerCount++;
          }
        }
      }
      if (!Joystick.joystickInUse && Joystick.joystickDown && Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) < JOYSTICK_TRESHOLD) {
        Joystick.joystickInUse=true;
      }
 else       if (Joystick.joystickInUse) {
        Joystick.useJoystick(xFirstTouch,yFirstTouch,(int)event.getX(),(int)event.getY(),wrapper);
        if (Utility.getDistance((float)xFirstTouch,(float)yFirstTouch,(float)joystickX,(float)joystickY) > JOYSTICK_TRESHOLD) {
          Joystick.joystickDown=false;
          Joystick.joystickInUse=false;
          wrapper.player.movementAcceleration=-6;
        }
      }
    }
    if (event.getAction() == MotionEvent.ACTION_UP) {
      Joystick.joystickInUse=false;
      Joystick.joystickDown=false;
      wrapper.player.movementAcceleration=-6;
      if (weaponManager.isUsingMotionEvents) {
        weaponManager.triggerMotionShoot(touchPath);
        for (int i=0; i < 10; i++) {
          touchPath[i][0]=0;
          touchPath[i][1]=0;
        }
        pointerCount=1;
      }
      if (Math.abs(event.getX() - (xFirstTouch - screenWidth / 2)) < touchMarginal && Math.abs(event.getY() - (yFirstTouch - screenHeight / 2)) < touchMarginal) {
      }
    }
  }
  return true;
}