Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:15:51 2012 Optimize a model with 2919 rows, 1640 columns and 10198 nonzeros Presolve removed 563 rows and 42 columns Presolve time: 0.10s Presolved: 2356 rows, 1598 columns, 8640 nonzeros Variable types: 0 continuous, 1598 integer (1598 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 3.000000e+00, 1654 iterations, 0.08 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 (5970 simplex iterations) in 0.41 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%