Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:50 2012 Optimize a model with 1721 rows, 1722 columns and 6681 nonzeros Presolve removed 87 rows and 125 columns Presolve time: 0.09s Presolved: 1634 rows, 1597 columns, 6273 nonzeros Variable types: 0 continuous, 1597 integer (1597 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 979 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 12 41.00000 3.00000 92.7% - 0s H 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (2774 simplex iterations) in 0.16 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%