def callSolver(self, lp, callback=None):
    'Solves the problem with gurobi\n            '
    self.solveTime = (- clock())
    lp.solverModel.optimize(callback=callback)
    self.solveTime += clock()
Solves the problem with gurobi
def callSolver(self, lp, callback=None):
    '\n            '
    self.solveTime = (- clock())
    lp.solverModel.optimize(callback=callback)
    self.solveTime += clock()