Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:45 2013

Optimize a model with 243 rows, 852 columns and 28592 nonzeros
Presolve removed 36 rows and 51 columns
Presolve time: 0.17s
Presolved: 207 rows, 801 columns, 26196 nonzeros
Variable types: 0 continuous, 801 integer (801 binary)
Found heuristic solution: objective 939.0000000
Found heuristic solution: objective 731.0000000

Root relaxation: objective 4.890000e+02, 68 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0  489.00000    0    6  731.00000  489.00000  33.1%     -    0s
H    0     0                     494.0000000  489.00000  1.01%     -    0s
H    0     0                     490.0000000  489.00000  0.20%     -    0s

Cutting planes:
  Zero half: 1

Explored 0 nodes (92 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.900000000000e+02, best bound 4.900000000000e+02, gap 0.0%