Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:08:43 2013

Optimize a model with 4991 rows, 961 columns and 15376 nonzeros
Presolve removed 865 rows and 497 columns
Presolve time: 0.04s
Presolved: 4126 rows, 464 columns, 12740 nonzeros
Variable types: 13 continuous, 451 integer (451 binary)
Found heuristic solution: objective 17888.000000

Root relaxation: objective 1.329302e+04, 2054 iterations, 0.05 seconds

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

     0     0 13293.0167    0   10 17888.0000 13293.0167  25.7%     -    0s
H    0     0                    13316.000000 13293.0167  0.17%     -    0s
H    0     0                    13305.000000 13293.0167  0.09%     -    0s
     0     0 13293.9702    0   16 13305.0000 13293.9702  0.08%     -    0s
     0     0 13293.9702    0   10 13305.0000 13293.9702  0.08%     -    0s
     0     0 13294.2620    0   17 13305.0000 13294.2620  0.08%     -    0s
H    0     0                    13303.000000 13294.2620  0.07%     -    0s
     0     0 13295.0396    0   23 13303.0000 13295.0396  0.06%     -    0s
H    0     0                    13301.000000 13295.0396  0.04%     -    0s
     0     2 13295.3122    0   23 13301.0000 13295.3122  0.04%     -    0s

Cutting planes:
  Gomory: 5
  Cover: 5
  Clique: 1
  MIR: 21
  Zero half: 6

Explored 48 nodes (2747 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.330100000000e+04, best bound 1.330100000000e+04, gap 0.0%