Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:51 2012 Optimize a model with 2131 rows, 1722 columns and 7911 nonzeros Presolve removed 213 rows and 248 columns Presolve time: 0.10s Presolved: 1918 rows, 1474 columns, 7079 nonzeros Variable types: 0 continuous, 1474 integer (1474 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 1512 iterations, 0.05 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 (3640 simplex iterations) in 0.25 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%