Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:33 2013 Optimize a model with 478 rows, 3498 columns and 145051 nonzeros Presolve removed 19 rows and 482 columns Presolve time: 1.45s Presolved: 459 rows, 3016 columns, 142969 nonzeros Variable types: 0 continuous, 3016 integer (3016 binary) Found heuristic solution: objective 2406.0000000 Found heuristic solution: objective 2028.0000000 Root relaxation: objective 1.602000e+03, 698 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1602.0000000 1602.00000 0.0% - 1s Explored 0 nodes (698 simplex iterations) in 1.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.602000000000e+03, best bound 1.602000000000e+03, gap 0.0%