Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:52:29 2013

Optimize a model with 11521 rows, 1681 columns and 35301 nonzeros
Presolve removed 2721 rows and 901 columns
Presolve time: 0.08s
Presolved: 8800 rows, 780 columns, 26854 nonzeros
Variable types: 12 continuous, 768 integer (768 binary)
Found heuristic solution: objective 35343.000000

Root relaxation: objective 2.892049e+04, 2119 iterations, 0.08 seconds

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

     0     0 28920.4931    0    5 35343.0000 28920.4931  18.2%     -    0s
H    0     0                    28928.000000 28920.4931  0.03%     -    0s
     0     0 28921.9674    0   12 28928.0000 28921.9674  0.02%     -    0s
     0     0 28921.9674    0    6 28928.0000 28921.9674  0.02%     -    0s
     0     0 28921.9674    0   12 28928.0000 28921.9674  0.02%     -    0s
H    0     0                    28925.000000 28921.9674  0.01%     -    0s
     0     0 28923.0787    0   17 28925.0000 28923.0787  0.01%     -    0s

Cutting planes:
  Implied bound: 1
  MIR: 9
  Zero half: 1

Explored 0 nodes (2192 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.892500000000e+04, best bound 2.892400000000e+04, gap 0.0035%