Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:28:16 2012 Optimize a model with 397 rows, 290 columns and 1280 nonzeros Presolve time: 0.00s Presolved: 397 rows, 290 columns, 1280 nonzeros Variable types: 0 continuous, 290 integer (290 binary) Found heuristic solution: objective 105.0000000 Found heuristic solution: objective 94.0000000 Root relaxation: objective 0.000000e+00, 128 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 91 94.00000 0.00000 100% - 0s H 0 0 89.0000000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s H 0 0 84.0000000 0.00000 100% - 0s H 0 0 77.0000000 0.00000 100% - 0s 0 0 0.51751 0 92 77.00000 0.51751 99.3% - 0s H 0 0 76.0000000 0.51751 99.3% - 0s 0 0 1.03394 0 94 76.00000 1.03394 98.6% - 0s H 0 0 69.0000000 1.03394 98.5% - 0s 0 0 1.33105 0 94 69.00000 1.33105 98.1% - 0s 0 0 1.33758 0 95 69.00000 1.33758 98.1% - 0s 0 0 1.33758 0 95 69.00000 1.33758 98.1% - 0s 0 2 1.35400 0 95 69.00000 1.35400 98.0% - 0s H 54 54 53.0000000 4.69955 91.1% 25.4 0s * 55 49 35 50.0000000 4.69955 90.6% 25.3 0s H 98 76 46.0000000 4.76488 89.6% 28.1 0s * 253 179 23 43.0000000 7.56421 82.4% 32.8 0s * 254 170 23 42.0000000 7.56421 82.0% 32.8 0s H 272 173 41.0000000 7.58862 81.5% 33.8 0s * 308 195 22 40.0000000 7.58862 81.0% 33.0 0s H 957 367 39.0000000 15.57692 60.1% 30.3 1s * 958 341 33 38.0000000 15.57692 59.0% 30.3 1s 5118 609 35.23438 21 123 38.00000 29.32432 22.8% 20.7 5s Explored 11624 nodes (218984 simplex iterations) in 9.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%