Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:11:03 2013

Optimize a model with 469 rows, 196 columns and 1470 nonzeros
Presolve removed 144 rows and 104 columns
Presolve time: 0.00s
Presolved: 325 rows, 92 columns, 1030 nonzeros
Variable types: 5 continuous, 87 integer (87 binary)
Found heuristic solution: objective 5044.0000000
Found heuristic solution: objective 4606.0000000

Root relaxation: objective 4.177787e+03, 6 iterations, 0.00 seconds

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

     0     0 4177.78723    0    5 4606.00000 4177.78723  9.30%     -    0s
H    0     0                    4190.0000000 4177.78723  0.29%     -    0s
     0     0 4178.97500    0    2 4190.00000 4178.97500  0.26%     -    0s
     0     0 4178.97500    0    4 4190.00000 4178.97500  0.26%     -    0s
H    0     0                    4183.0000000 4178.97500  0.10%     -    0s
     0     0 4181.36364    0    1 4183.00000 4181.36364  0.04%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 1
  Implied bound: 1
  Clique: 1
  MIR: 1

Explored 0 nodes (27 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.183000000000e+03, best bound 4.183000000000e+03, gap 0.0%