Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:25:50 2012 Optimize a model with 7797 rows, 4830 columns and 27945 nonzeros Presolve removed 1035 rows and 0 columns Presolve time: 0.14s Presolved: 6762 rows, 4830 columns, 25392 nonzeros Variable types: 0 continuous, 4830 integer (4830 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 5124 iterations, 0.29 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 (9162 simplex iterations) in 0.82 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%