Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:43:53 2013

Optimize a model with 7175 rows, 1225 columns and 22050 nonzeros
Presolve removed 2354 rows and 683 columns
Presolve time: 0.05s
Presolved: 4821 rows, 542 columns, 14715 nonzeros
Variable types: 8 continuous, 534 integer (534 binary)
Found heuristic solution: objective 25114.000000

Root relaxation: objective 2.098466e+04, 1213 iterations, 0.04 seconds

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

     0     0 20984.6575    0    5 25114.0000 20984.6575  16.4%     -    0s
H    0     0                    20994.000000 20984.6575  0.04%     -    0s
H    0     0                    20993.000000 20984.6575  0.04%     -    0s
     0     0 20988.1708    0   16 20993.0000 20988.1708  0.02%     -    0s
     0     0 20988.1708    0    5 20993.0000 20988.1708  0.02%     -    0s
     0     0 20988.1708    0   16 20993.0000 20988.1708  0.02%     -    0s
H    0     0                    20990.000000 20988.1708  0.01%     -    0s

Cutting planes:
  Implied bound: 11
  MIR: 4

Explored 0 nodes (1279 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.099000000000e+04, best bound 2.098900000000e+04, gap 0.0048%