Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:07 2012 Optimize a model with 27 rows, 21 columns and 86 nonzeros Presolve time: 0.00s Presolved: 27 rows, 21 columns, 86 nonzeros Variable types: 0 continuous, 21 integer (21 binary) Found heuristic solution: objective 9.0000000 Found heuristic solution: objective 7.0000000 Root relaxation: objective 0.000000e+00, 11 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 8 7.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.62500 0 10 5.00000 0.62500 87.5% - 0s 0 0 0.75000 0 10 5.00000 0.75000 85.0% - 0s 0 0 0.85106 0 12 5.00000 0.85106 83.0% - 0s 0 0 0.90688 0 14 5.00000 0.90688 81.9% - 0s 0 0 1.01333 0 16 5.00000 1.01333 79.7% - 0s 0 0 1.08511 0 18 5.00000 1.08511 78.3% - 0s 0 0 1.11409 0 18 5.00000 1.11409 77.7% - 0s 0 0 1.12240 0 20 5.00000 1.12240 77.6% - 0s 0 2 1.16467 0 20 5.00000 1.16467 76.7% - 0s Cutting planes: Gomory: 1 Mod-K: 7 Explored 7 nodes (108 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%