Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:34:24 2013

Optimize a model with 6579 rows, 1156 columns and 20230 nonzeros
Presolve removed 1461 rows and 614 columns
Presolve time: 0.04s
Presolved: 5118 rows, 542 columns, 15726 nonzeros
Variable types: 12 continuous, 530 integer (530 binary)
Found heuristic solution: objective 30238.000000

Root relaxation: objective 2.628346e+04, 1539 iterations, 0.04 seconds

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

     0     0 26283.4615    0    4 30238.0000 26283.4615  13.1%     -    0s
H    0     0                    26294.000000 26283.4615  0.04%     -    0s
H    0     0                    26289.000000 26283.4615  0.02%     -    0s
     0     0     cutoff    0      26289.0000 26288.0263  0.00%     -    0s

Cutting planes:
  Gomory: 2
  Implied bound: 3
  MIR: 4
  Mod-K: 1

Explored 0 nodes (1554 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.628900000000e+04, best bound 2.628900000000e+04, gap 0.0%