Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:50 2012 Optimize a model with 1639 rows, 1722 columns and 6435 nonzeros Presolve removed 92 rows and 330 columns Presolve time: 0.09s Presolved: 1547 rows, 1392 columns, 5826 nonzeros Variable types: 0 continuous, 1392 integer (1392 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 1085 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 8 41.00000 3.00000 92.7% - 0s H 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (3150 simplex iterations) in 0.18 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%