Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:17 2012 Optimize a model with 183 rows, 131 columns and 586 nonzeros Presolve time: 0.00s Presolved: 183 rows, 131 columns, 586 nonzeros Variable types: 0 continuous, 131 integer (131 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 62 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 40 35.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.68164 0 43 32.00000 0.68164 97.9% - 0s H 0 0 30.0000000 0.68164 97.7% - 0s 0 0 0.85294 0 42 30.00000 0.85294 97.2% - 0s H 0 0 27.0000000 0.85294 96.8% - 0s 0 0 0.89747 0 47 27.00000 0.89747 96.7% - 0s 0 0 0.92351 0 46 27.00000 0.92351 96.6% - 0s 0 0 0.93147 0 45 27.00000 0.93147 96.6% - 0s 0 0 0.93230 0 42 27.00000 0.93230 96.5% - 0s 0 0 0.99129 0 54 27.00000 0.99129 96.3% - 0s 0 0 1.02209 0 54 27.00000 1.02209 96.2% - 0s 0 0 1.02218 0 54 27.00000 1.02218 96.2% - 0s 0 2 1.05533 0 54 27.00000 1.05533 96.1% - 0s * 27 25 17 26.0000000 3.67201 85.9% 22.8 0s * 28 22 17 25.0000000 3.67201 85.3% 22.3 0s * 42 13 9 16.0000000 4.04202 74.7% 20.5 0s * 51 9 5 14.0000000 7.56471 46.0% 18.9 0s Cutting planes: Gomory: 1 Mod-K: 6 Explored 69 nodes (1571 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%