Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:15:09 2012 Optimize a model with 379 rows, 217 columns and 1162 nonzeros Presolve time: 0.00s Presolved: 379 rows, 217 columns, 1162 nonzeros Variable types: 0 continuous, 217 integer (217 binary) Found heuristic solution: objective 99.0000000 Found heuristic solution: objective 98.0000000 Root relaxation: objective 0.000000e+00, 55 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 28 98.00000 0.00000 100% - 0s H 0 0 92.0000000 0.00000 100% - 0s H 0 0 89.0000000 0.00000 100% - 0s 0 0 0.95455 0 30 89.00000 0.95455 98.9% - 0s 0 0 1.00000 0 30 89.00000 1.00000 98.9% - 0s 0 0 1.02682 0 40 89.00000 1.02682 98.8% - 0s 0 0 1.13262 0 52 89.00000 1.13262 98.7% - 0s 0 0 1.13636 0 30 89.00000 1.13636 98.7% - 0s 0 0 1.13636 0 30 89.00000 1.13636 98.7% - 0s 0 0 1.13636 0 30 89.00000 1.13636 98.7% - 0s 0 0 1.13636 0 30 89.00000 1.13636 98.7% - 0s H 0 0 88.0000000 1.13636 98.7% - 0s H 0 0 84.0000000 1.13636 98.6% - 0s 0 2 1.18217 0 30 84.00000 1.18217 98.6% - 0s * 61 43 16 83.0000000 9.06061 89.1% 37.0 0s H 163 104 81.0000000 21.60000 73.3% 36.2 0s * 809 309 27 78.0000000 35.04762 55.1% 30.7 0s * 1177 289 26 77.0000000 39.00000 49.4% 28.9 1s H 2944 599 76.0000000 50.33333 33.8% 25.1 2s * 3281 624 25 75.0000000 50.70000 32.4% 24.6 2s * 3284 608 24 74.0000000 50.70000 31.5% 24.6 2s 6094 656 69.66667 20 120 74.00000 58.47059 21.0% 23.6 5s Cutting planes: Gomory: 1 Mod-K: 2 Explored 10166 nodes (224341 simplex iterations) in 7.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.400000000000e+01, best bound 7.400000000000e+01, gap 0.0%