Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:02:38 2013

Optimize a model with 640 rows, 5963 columns and 288556 nonzeros
Presolve removed 3 rows and 3 columns
Presolve time: 1.00s
Presolved: 637 rows, 5960 columns, 288298 nonzeros
Variable types: 0 continuous, 5960 integer (5960 binary)
Found heuristic solution: objective 4222.0000000
Found heuristic solution: objective 3396.0000000

Root relaxation: objective 2.399500e+03, 1128 iterations, 0.14 seconds

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

     0     0 2399.50000    0   16 3396.00000 2399.50000  29.3%     -    1s
H    0     0                    2821.0000000 2399.50000  14.9%     -    1s
H    0     0                    2453.0000000 2399.50000  2.18%     -    1s
     0     0 2400.33333    0   38 2453.00000 2400.33333  2.15%     -    1s
H    0     0                    2438.0000000 2400.33333  1.54%     -    2s
     0     0 2400.33333    0   16 2438.00000 2400.33333  1.54%     -    2s
*    0     0               0    2402.0000000 2402.00000   0.0%     -    3s

Cutting planes:
  Gomory: 2
  Clique: 1
  Zero half: 2

Explored 0 nodes (2544 simplex iterations) in 3.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.402000000000e+03, best bound 2.402000000000e+03, gap 0.0%