Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:56:31 2013

Optimize a model with 7806 rows, 1296 columns and 23976 nonzeros
Presolve removed 874 rows and 650 columns
Presolve time: 0.05s
Presolved: 6932 rows, 646 columns, 21554 nonzeros
Variable types: 23 continuous, 623 integer (623 binary)
Found heuristic solution: objective 21770.000000

Root relaxation: objective 1.339107e+04, 4426 iterations, 0.15 seconds

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

     0     0 13391.0667    0   16 21770.0000 13391.0667  38.5%     -    0s
H    0     0                    13412.000000 13391.0667  0.16%     -    0s
H    0     0                    13407.000000 13391.0667  0.12%     -    0s
H    0     0                    13404.000000 13391.0667  0.10%     -    0s
     0     0 13392.0000    0   14 13404.0000 13392.0000  0.09%     -    0s
     0     0 13392.0000    0   16 13404.0000 13392.0000  0.09%     -    0s
H    0     0                    13399.000000 13392.0000  0.05%     -    0s
     0     0 13392.0000    0   14 13399.0000 13392.0000  0.05%     -    0s
     0     2 13392.0000    0   14 13399.0000 13392.0000  0.05%     -    0s
H    1     2                    13398.000000 13392.0000  0.04%  40.0    0s
H  253   116                    13397.000000 13392.0000  0.04%  21.6    0s
H  417   163                    13396.000000 13392.0000  0.03%  21.2    0s
H  471   151                    13395.000000 13392.0000  0.02%  20.4    0s
 11806  2044 13393.2384   34   27 13395.0000 13392.0000  0.02%  12.4    5s

Cutting planes:
  Gomory: 2
  Cover: 1
  MIR: 4

Explored 21569 nodes (228192 simplex iterations) in 6.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.339500000000e+04, best bound 1.339400000000e+04, gap 0.0075%