Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:47 2013

Optimize a model with 459 rows, 3729 columns and 141845 nonzeros
Presolve removed 23 rows and 22 columns
Presolve time: 1.11s
Presolved: 436 rows, 3707 columns, 139965 nonzeros
Variable types: 0 continuous, 3707 integer (3707 binary)
Found heuristic solution: objective 2697.0000000

Root relaxation: objective 2.061818e+03, 980 iterations, 0.10 seconds

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

     0     0 2061.81818    0   50 2697.00000 2061.81818  23.6%     -    1s
H    0     0                    2109.0000000 2061.81818  2.24%     -    1s
*    0     0               0    2070.0000000 2070.00000   0.0%     -    1s

Cutting planes:
  Gomory: 2
  Clique: 16
  Zero half: 16

Explored 0 nodes (1479 simplex iterations) in 1.61 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.070000000000e+03, best bound 2.070000000000e+03, gap 0.0%