Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:55:51 2013

Optimize a model with 4089 rows, 841 columns and 12615 nonzeros
Presolve removed 634 rows and 429 columns
Presolve time: 0.03s
Presolved: 3455 rows, 412 columns, 10729 nonzeros
Variable types: 14 continuous, 398 integer (398 binary)
Found heuristic solution: objective 17900.000000

Root relaxation: objective 1.351419e+04, 2123 iterations, 0.05 seconds

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

     0     0 13514.1875    0   13 17900.0000 13514.1875  24.5%     -    0s
H    0     0                    13546.000000 13514.1875  0.23%     -    0s
H    0     0                    13537.000000 13514.1875  0.17%     -    0s
     0     0 13514.1875    0   17 13537.0000 13514.1875  0.17%     -    0s
     0     0 13514.1875    0   10 13537.0000 13514.1875  0.17%     -    0s
H    0     0                    13533.000000 13514.1875  0.14%     -    0s
H    0     0                    13524.000000 13514.1875  0.07%     -    0s
     0     0 13514.1875    0   17 13524.0000 13514.1875  0.07%     -    0s
     0     1 13514.1875    0   13 13524.0000 13514.1875  0.07%     -    0s
H    5     3                    13520.000000 13514.2188  0.04%   2.4    0s

Cutting planes:
  Gomory: 7
  Cover: 3
  Implied bound: 2
  MIR: 29
  Zero half: 12

Explored 676 nodes (9397 simplex iterations) in 0.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.352000000000e+04, best bound 1.351900000000e+04, gap 0.0074%