Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:48:33 2012
Optimize a model with 315 rows, 239 columns and 1024 nonzeros
Presolve time: 0.00s
Presolved: 315 rows, 239 columns, 1024 nonzeros
Variable types: 0 continuous, 239 integer (239 binary)
Found heuristic solution: objective 67.0000000
Root relaxation: objective 0.000000e+00, 130 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 81 67.00000 0.00000 100% - 0s
H 0 0 60.0000000 0.00000 100% - 0s
0 0 0.73725 0 84 60.00000 0.73725 98.8% - 0s
0 0 0.75088 0 85 60.00000 0.75088 98.7% - 0s
0 0 0.76240 0 89 60.00000 0.76240 98.7% - 0s
H 0 0 50.0000000 0.76240 98.5% - 0s
0 0 0.77546 0 89 50.00000 0.77546 98.4% - 0s
0 0 0.79945 0 98 50.00000 0.79945 98.4% - 0s
0 0 0.80179 0 98 50.00000 0.80179 98.4% - 0s
0 2 0.81612 0 98 50.00000 0.81612 98.4% - 0s
H 32 32 45.0000000 3.05633 93.2% 29.5 0s
H 32 32 41.0000000 3.05633 92.5% 29.5 0s
* 36 36 20 35.0000000 3.05633 91.3% 29.0 0s
* 72 58 23 34.0000000 3.06190 91.0% 23.8 0s
* 100 70 16 33.0000000 7.21311 78.1% 23.3 0s
* 106 70 17 32.0000000 7.21311 77.5% 22.5 0s
* 145 91 16 30.0000000 7.21739 75.9% 21.7 0s
* 466 192 14 29.0000000 13.21053 54.4% 19.0 0s
* 755 249 30 28.0000000 15.17143 45.8% 22.3 0s
Explored 2074 nodes (48188 simplex iterations) in 1.60 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%