Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:52 2012 Optimize a model with 153 rows, 93 columns and 473 nonzeros Presolve time: 0.00s Presolved: 153 rows, 93 columns, 473 nonzeros Variable types: 0 continuous, 93 integer (93 binary) Found heuristic solution: objective 43.0000000 Found heuristic solution: objective 40.0000000 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 17 40.00000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.60504 0 18 34.00000 0.60504 98.2% - 0s 0 0 1.29288 0 19 34.00000 1.29288 96.2% - 0s 0 0 1.60718 0 20 34.00000 1.60718 95.3% - 0s 0 0 1.63913 0 21 34.00000 1.63913 95.2% - 0s 0 0 1.66514 0 21 34.00000 1.66514 95.1% - 0s 0 0 1.69896 0 22 34.00000 1.69896 95.0% - 0s 0 0 1.77678 0 21 34.00000 1.77678 94.8% - 0s 0 0 1.80873 0 22 34.00000 1.80873 94.7% - 0s 0 0 1.81226 0 21 34.00000 1.81226 94.7% - 0s 0 0 1.82350 0 23 34.00000 1.82350 94.6% - 0s H 0 0 32.0000000 1.82350 94.3% - 0s 0 2 1.90638 0 23 32.00000 1.90638 94.0% - 0s * 197 42 10 31.0000000 16.14286 47.9% 12.1 0s * 390 37 8 29.0000000 21.50000 25.9% 10.6 0s Cutting planes: Gomory: 4 Mod-K: 6 Explored 504 nodes (5206 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%