Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:58 2012
Optimize a model with 255 rows, 197 columns and 832 nonzeros
Presolve time: 0.00s
Presolved: 255 rows, 197 columns, 832 nonzeros
Variable types: 0 continuous, 197 integer (197 binary)
Found heuristic solution: objective 57.0000000
Root relaxation: objective 0.000000e+00, 110 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 70 57.00000 0.00000 100% - 0s
H 0 0 50.0000000 0.00000 100% - 0s
H 0 0 37.0000000 0.00000 100% - 0s
H 0 0 35.0000000 0.00000 100% - 0s
0 0 0.70000 0 72 35.00000 0.70000 98.0% - 0s
H 0 0 33.0000000 0.70000 97.9% - 0s
0 0 0.76667 0 73 33.00000 0.76667 97.7% - 0s
H 0 0 31.0000000 0.76667 97.5% - 0s
0 0 0.79279 0 74 31.00000 0.79279 97.4% - 0s
0 0 0.83828 0 75 31.00000 0.83828 97.3% - 0s
0 0 0.87500 0 75 31.00000 0.87500 97.2% - 0s
0 0 0.90000 0 72 31.00000 0.90000 97.1% - 0s
0 0 0.91111 0 72 31.00000 0.91111 97.1% - 0s
0 0 0.91111 0 72 31.00000 0.91111 97.1% - 0s
0 2 0.91111 0 72 31.00000 0.91111 97.1% - 0s
* 27 27 17 26.0000000 2.76000 89.4% 25.7 0s
* 30 26 20 25.0000000 2.76000 89.0% 24.2 0s
* 49 34 13 22.0000000 2.86667 87.0% 24.9 0s
* 216 64 15 21.0000000 9.00000 57.1% 22.2 0s
Cutting planes:
Gomory: 1
Zero half: 5
Explored 635 nodes (12901 simplex iterations) in 0.47 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%