Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:21 2012 Optimize a model with 87 rows, 71 columns and 286 nonzeros Presolve time: 0.00s Presolved: 87 rows, 71 columns, 286 nonzeros Variable types: 0 continuous, 71 integer (71 binary) Found heuristic solution: objective 16.0000000 Found heuristic solution: objective 13.0000000 Root relaxation: objective 0.000000e+00, 41 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 28 13.00000 0.00000 100% - 0s 0 0 0.82786 0 32 13.00000 0.82786 93.6% - 0s 0 0 0.86176 0 35 13.00000 0.86176 93.4% - 0s H 0 0 12.0000000 0.86176 92.8% - 0s 0 0 0.88034 0 42 12.00000 0.88034 92.7% - 0s H 0 0 10.0000000 0.88034 91.2% - 0s 0 0 0.89506 0 33 10.00000 0.89506 91.0% - 0s 0 0 0.90560 0 43 10.00000 0.90560 90.9% - 0s 0 0 0.90560 0 43 10.00000 0.90560 90.9% - 0s H 0 0 9.0000000 0.90560 89.9% - 0s 0 2 1.02051 0 43 9.00000 1.02051 88.7% - 0s * 10 10 6 8.0000000 3.62162 54.7% 16.0 0s * 31 5 4 7.0000000 5.47368 21.8% 10.1 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 38 nodes (506 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%