Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:28:33 2014 Optimize a model with 1483 rows, 1482 columns and 4370 nonzeros Presolve time: 0.02s Presolved: 1483 rows, 1482 columns, 4370 nonzeros Variable types: 0 continuous, 1482 integer (1482 binary) Found heuristic solution: objective 9.4790629 Root relaxation: objective 6.395134e+00, 428 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 6.3951340 6.39513 0.00% - 0s Explored 0 nodes (428 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.395133960659e+00, best bound 6.395133960659e+00, gap 0.0%