Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:54:25 2013

Optimize a model with 19649 rows, 2401 columns and 60025 nonzeros
Presolve removed 2572 rows and 1234 columns
Presolve time: 0.14s
Presolved: 17077 rows, 1167 columns, 52197 nonzeros
Variable types: 21 continuous, 1146 integer (1146 binary)
Found heuristic solution: objective 46363.000000

Root relaxation: objective 3.507392e+04, 4713 iterations, 0.24 seconds

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

     0     0 35073.9163    0   10 46363.0000 35073.9163  24.3%     -    0s
H    0     0                    35083.000000 35073.9163  0.03%     -    0s
H    0     0                    35080.000000 35073.9163  0.02%     -    0s
     0     0 35073.9895    0   21 35080.0000 35073.9895  0.02%     -    0s
     0     0 35073.9895    0   14 35080.0000 35073.9895  0.02%     -    0s
     0     0 35074.1235    0   31 35080.0000 35074.1235  0.02%     -    0s
     0     2 35074.1882    0   29 35080.0000 35074.1882  0.02%     -    0s

Cutting planes:
  Gomory: 5
  Cover: 1
  MIR: 18
  Zero half: 13

Explored 29 nodes (7315 simplex iterations) in 0.94 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.508000000000e+04, best bound 3.507700000000e+04, gap 0.0086%