Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:50 2012 Optimize a model with 49 rows, 45 columns and 165 nonzeros Presolve time: 0.00s Presolved: 49 rows, 45 columns, 165 nonzeros Variable types: 0 continuous, 45 integer (45 binary) Found heuristic solution: objective 6.0000000 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 6.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.73879 0 23 5.00000 0.73879 85.2% - 0s 0 0 1.08355 0 21 5.00000 1.08355 78.3% - 0s 0 0 1.10902 0 21 5.00000 1.10902 77.8% - 0s 0 0 1.10902 0 24 5.00000 1.10902 77.8% - 0s 0 0 1.10902 0 23 5.00000 1.10902 77.8% - 0s H 0 0 4.0000000 1.10902 72.3% - 0s 0 2 1.12714 0 23 4.00000 1.12714 71.8% - 0s * 5 3 3 3.0000000 2.50000 16.7% 10.8 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 6 nodes (155 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%