Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:28 2013

Optimize a model with 495 rows, 426 columns and 1668 nonzeros
Presolve removed 6 rows and 0 columns
Presolve time: 0.00s
Presolved: 489 rows, 426 columns, 1662 nonzeros
Variable types: 420 continuous, 6 integer (6 binary)

Root relaxation: objective 1.345387e+04, 106 iterations, 0.00 seconds

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

     0     0 13453.8709    0    3          - 13453.8709     -      -    0s
H    0     0                    13589.000000 13453.8709  0.99%     -    0s
     0     0     cutoff    0      13589.0000 13589.0000   0.0%     -    0s

Cutting planes:
  Gomory: 2
  Implied bound: 2

Explored 0 nodes (123 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.358900000000e+04, best bound 1.358900000000e+04, gap 0.0%