// errorThread.start();
cli.sendCommand("option solver ilogcp;");
cli.sendCommand("model output/assignment.mod;");
cli.sendCommand("data output/assignment0.dat;");
cli.sendCommand("solve;");
cli.sendCommand("show;");
cli.sendCommand("display a, return, x;");
try {
Thread.sleep(2000);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block