Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:04:40 2012 Optimize a model with 369 rows, 241 columns and 1161 nonzeros Presolve time: 0.00s Presolved: 369 rows, 241 columns, 1161 nonzeros Variable types: 0 continuous, 241 integer (241 binary) Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 87 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 57 82.00000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s 0 0 0.87539 0 65 80.00000 0.87539 98.9% - 0s 0 0 0.92798 0 62 80.00000 0.92798 98.8% - 0s 0 0 0.93967 0 72 80.00000 0.93967 98.8% - 0s H 0 0 74.0000000 0.93967 98.7% - 0s 0 0 0.95204 0 81 74.00000 0.95204 98.7% - 0s H 0 0 69.0000000 0.95204 98.6% - 0s 0 0 1.03954 0 89 69.00000 1.03954 98.5% - 0s H 0 0 64.0000000 1.03954 98.4% - 0s 0 2 1.05515 0 89 64.00000 1.05515 98.4% - 0s H 40 40 60.0000000 5.74580 90.4% 29.2 0s * 48 46 28 59.0000000 5.74580 90.3% 26.3 0s * 50 39 30 58.0000000 5.74580 90.1% 25.6 0s * 85 64 21 54.0000000 5.83705 89.2% 26.7 0s * 236 179 23 51.0000000 13.69909 73.1% 25.8 0s * 343 217 24 50.0000000 14.81250 70.4% 24.2 0s * 838 412 31 49.0000000 18.63095 62.0% 25.1 0s H 2362 493 48.0000000 28.88235 39.8% 23.2 2s 5322 658 45.42500 22 119 48.00000 35.07143 26.9% 21.8 5s Cutting planes: Gomory: 1 Mod-K: 4 Explored 11733 nodes (240011 simplex iterations) in 9.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%