Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:08:39 2013

Optimize a model with 4991 rows, 961 columns and 15376 nonzeros
Presolve removed 1358 rows and 520 columns
Presolve time: 0.03s
Presolved: 3633 rows, 441 columns, 11151 nonzeros
Variable types: 9 continuous, 432 integer (432 binary)
Found heuristic solution: objective 24325.000000

Root relaxation: objective 2.163210e+04, 1111 iterations, 0.03 seconds

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

     0     0 21632.0968    0    4 24325.0000 21632.0968  11.1%     -    0s
H    0     0                    21640.000000 21632.0968  0.04%     -    0s
     0     0 21635.2667    0   12 21640.0000 21635.2667  0.02%     -    0s
     0     0 21635.2667    0    3 21640.0000 21635.2667  0.02%     -    0s
     0     0 21637.7780    0   14 21640.0000 21637.7780  0.01%     -    0s
     0     0 21638.4243    0   10 21640.0000 21638.4243  0.01%     -    0s

Cutting planes:
  Gomory: 2
  Cover: 1
  Implied bound: 2
  MIR: 7

Explored 0 nodes (1191 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.164000000000e+04, best bound 2.163900000000e+04, gap 0.0046%