Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:09 2012 Optimize a model with 37 rows, 27 columns and 117 nonzeros Presolve time: 0.00s Presolved: 37 rows, 27 columns, 117 nonzeros Variable types: 0 continuous, 27 integer (27 binary) Found heuristic solution: objective 11.0000000 Found heuristic solution: objective 10.0000000 Root relaxation: objective 0.000000e+00, 13 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 9 10.00000 0.00000 100% - 0s 0 0 0.94667 0 15 10.00000 0.94667 90.5% - 0s 0 0 1.06535 0 20 10.00000 1.06535 89.3% - 0s 0 0 1.18605 0 21 10.00000 1.18605 88.1% - 0s H 0 0 8.0000000 1.18605 85.2% - 0s 0 0 1.29891 0 20 8.00000 1.29891 83.8% - 0s H 0 0 7.0000000 1.29891 81.4% - 0s 0 0 1.35410 0 23 7.00000 1.35410 80.7% - 0s 0 0 1.40789 0 18 7.00000 1.40789 79.9% - 0s 0 0 1.42324 0 24 7.00000 1.42324 79.7% - 0s H 0 0 6.0000000 1.42324 76.3% - 0s 0 2 1.47115 0 24 6.00000 1.47115 75.5% - 0s Cutting planes: Gomory: 1 Mod-K: 10 Explored 7 nodes (162 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%