Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:42 2012 Optimize a model with 45 rows, 40 columns and 150 nonzeros Presolve time: 0.00s Presolved: 45 rows, 40 columns, 150 nonzeros Variable types: 0 continuous, 40 integer (40 binary) Found heuristic solution: objective 11.0000000 Found heuristic solution: objective 9.0000000 Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 18 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.62500 0 20 6.00000 0.62500 89.6% - 0s 0 0 0.64103 0 21 6.00000 0.64103 89.3% - 0s 0 0 0.71429 0 21 6.00000 0.71429 88.1% - 0s 0 0 0.71429 0 21 6.00000 0.71429 88.1% - 0s 0 2 0.77778 0 21 6.00000 0.77778 87.0% - 0s * 4 4 3 3.0000000 1.00000 66.7% 12.8 0s Cutting planes: Gomory: 1 Zero half: 3 Explored 34 nodes (219 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%