Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:53:03 2012 Optimize a model with 4418 rows, 2256 columns and 15322 nonzeros Presolve removed 611 rows and 0 columns Presolve time: 0.09s Presolved: 3807 rows, 2256 columns, 13818 nonzeros Variable types: 0 continuous, 2256 integer (2256 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 3.000000e+00, 2605 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 (4143 simplex iterations) in 0.33 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%