Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:11:45 2013

Optimize a model with 563 rows, 6677 columns and 217166 nonzeros
Presolve removed 61 rows and 799 columns
Presolve time: 1.67s
Presolved: 502 rows, 5878 columns, 201921 nonzeros
Variable types: 0 continuous, 5878 integer (5878 binary)
Found heuristic solution: objective 3681.0000000

Root relaxation: objective 2.385889e+03, 1265 iterations, 0.14 seconds

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

     0     0 2385.88889    0   55 3681.00000 2385.88889  35.2%     -    1s
H    0     0                    2496.0000000 2385.88889  4.41%     -    2s
     0     0 2414.00000    0   38 2496.00000 2414.00000  3.29%     -    2s
H    0     0                    2490.0000000 2414.00000  3.05%     -    3s
     0     0 2414.00000    0   24 2490.00000 2414.00000  3.05%     -    3s
*    0     0               0    2417.0000000 2417.00000   0.0%     -    3s

Cutting planes:
  Gomory: 3
  Clique: 7
  Zero half: 6

Explored 0 nodes (3234 simplex iterations) in 3.70 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.417000000000e+03, best bound 2.417000000000e+03, gap 0.0%