Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:34 2013

Optimize a model with 606 rows, 532 columns and 2086 nonzeros
Presolve removed 7 rows and 0 columns
Presolve time: 0.00s
Presolved: 599 rows, 532 columns, 2079 nonzeros
Variable types: 525 continuous, 7 integer (7 binary)

Root relaxation: objective 1.840942e+04, 160 iterations, 0.00 seconds

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

     0     0 18409.4171    0    4          - 18409.4171     -      -    0s
H    0     0                    18621.000000 18409.4171  1.14%     -    0s
     0     0     cutoff    0      18621.0000 18621.0000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Implied bound: 3

Explored 0 nodes (176 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.862100000000e+04, best bound 1.862100000000e+04, gap 0.0%