where is the output model

I trained the model by following command:
`build/difacto data_in=data/gisette_scale val_data=data/gisette_scale.t lr=.02 V_dim=2 V_lr=.001 batch_size=10240 model_out=./fm.model task=train learner=lbfgs`
when it's done, I can't find the output model, where is it ?