Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:30 2012 Optimize a model with 7140 rows, 3660 columns and 24840 nonzeros Presolve removed 840 rows and 0 columns Presolve time: 0.15s Presolved: 6300 rows, 3660 columns, 22800 nonzeros Variable types: 0 continuous, 3660 integer (3660 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 5887 iterations, 0.44 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% - 1s Explored 0 nodes (14450 simplex iterations) in 1.55 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%