Issue in running train_model.py

[nehruperumalla]

When I run the train_model.py inside spacenet/src/models using the provided sample piece of command, I am getting output as Killed.

The Command I am trying to run:
python train_model.py ~/data/xBD/spacenet_gt/dataSet/ ~/data/xBD/spacenet_gt/images/ ~/data/xBD/spacenet_gt/labels/ -e 100 -g -4 GPU: -4

Output:

[nehruperumalla]

A detailed command screenshot.