Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:46 2013

Optimize a model with 3838 rows, 3648 columns and 14478 nonzeros
Presolve removed 19 rows and 0 columns
Presolve time: 0.01s
Presolved: 3819 rows, 3648 columns, 14459 nonzeros
Variable types: 3629 continuous, 19 integer (19 binary)

Root relaxation: objective 2.051934e+04, 551 iterations, 0.02 seconds

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

     0     0 20519.3424    0   13          - 20519.3424     -      -    0s
H    0     0                    21144.000000 20519.3424  2.95%     -    0s
*    0     0               0    20954.000000 20954.0000   0.0%     -    0s

Cutting planes:
  Gomory: 8
  Implied bound: 13

Explored 0 nodes (665 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.095400000000e+04, best bound 2.095400000000e+04, gap 0.0%