Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:12:55 2012 Optimize a model with 2431 rows, 1482 columns and 8586 nonzeros Presolve removed 576 rows and 154 columns Presolve time: 0.10s Presolved: 1855 rows, 1328 columns, 6968 nonzeros Variable types: 0 continuous, 1328 integer (1328 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 3.000000e+00, 1291 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (5010 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%