Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:09:55 2012 Optimize a model with 352 rows, 506 columns and 1474 nonzeros Presolve removed 7 rows and 154 columns Presolve time: 0.00s Presolved: 345 rows, 352 columns, 1320 nonzeros Variable types: 0 continuous, 352 integer (352 binary) Found heuristic solution: objective 8.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 299 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 30 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 48 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 47 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 47 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 30 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 30 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 30 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 30 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 30 3.00000 2.00000 33.3% - 0s 0 2 2.00000 0 30 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 4 Explored 10 nodes (13028 simplex iterations) in 0.32 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%