Warning: multiple calibratable devices found, calibrating last one (VirtualBox mouse integration)
use --device to select another one.
Calibrating EVDEV driver for "VirtualBox mouse integration" id=12
    current calibration values (from XInput): min_x=4, max_x=65512 and min_y=-52, max_y=65816

Doing dynamic recalibration:
    Setting new calibration data: 66, 65483, -125, 65584


--> Making the calibration permanent <--
  copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf'
Section "InputClass"
    Identifier  "calibration"
    MatchProduct    "VirtualBox mouse integration"
    Option  "Calibration"   "66 65483 -125 65584"
EndSection

xinput_calibrator | tail -n 5 > log.txt

xinput_calibrator | tail -n 5 >> log.txt