Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:35 2013

Optimize a model with 3094 rows, 2924 columns and 11594 nonzeros
Presolve removed 17 rows and 0 columns
Presolve time: 0.01s
Presolved: 3077 rows, 2924 columns, 11577 nonzeros
Variable types: 2907 continuous, 17 integer (17 binary)

Root relaxation: objective 1.858422e+04, 465 iterations, 0.02 seconds

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

     0     0 18584.2226    0    7          - 18584.2226     -      -    0s
H    0     0                    19085.000000 18584.2226  2.62%     -    0s
*    0     0               0    19015.000000 19015.0000   0.0%     -    0s

Cutting planes:
  Gomory: 5
  Implied bound: 7

Explored 0 nodes (550 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.901500000000e+04, best bound 1.901500000000e+04, gap 0.0%