Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:40 2013

Optimize a model with 646 rows, 567 columns and 2226 nonzeros
Presolve removed 7 rows and 0 columns
Presolve time: 0.00s
Presolved: 639 rows, 567 columns, 2219 nonzeros
Variable types: 560 continuous, 7 integer (7 binary)

Root relaxation: objective 1.272377e+04, 94 iterations, 0.00 seconds

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

     0     0 12723.7676    0    4          - 12723.7676     -      -    0s
H    0     0                    12952.000000 12723.7676  1.76%     -    0s
     0     0     cutoff    0      12952.0000 12952.0000   0.0%     -    0s

Cutting planes:
  Gomory: 3
  Implied bound: 4

Explored 0 nodes (116 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.295200000000e+04, best bound 1.295200000000e+04, gap 0.0%