Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:07:51 2012 Optimize a model with 306 rows, 306 columns and 1156 nonzeros Presolve removed 69 rows and 17 columns Presolve time: 0.00s Presolved: 237 rows, 289 columns, 969 nonzeros Variable types: 0 continuous, 289 integer (289 binary) Found heuristic solution: objective 8.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 258 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (258 simplex iterations) in 0.01 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%