Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:45:05 2012 Optimize a model with 4140 rows, 2162 columns and 14398 nonzeros Presolve removed 1059 rows and 46 columns Presolve time: 0.09s Presolved: 3081 rows, 2116 columns, 11822 nonzeros Variable types: 0 continuous, 2116 integer (2116 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 3.000000e+00, 2466 iterations, 0.12 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 (4695 simplex iterations) in 0.36 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%