Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:52:28 2013

Optimize a model with 11521 rows, 1681 columns and 35301 nonzeros
Presolve removed 1830 rows and 871 columns
Presolve time: 0.08s
Presolved: 9691 rows, 810 columns, 29718 nonzeros
Variable types: 17 continuous, 793 integer (793 binary)
Found heuristic solution: objective 38582.000000

Root relaxation: objective 2.982513e+04, 3820 iterations, 0.14 seconds

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

     0     0 29825.1303    0    8 38582.0000 29825.1303  22.7%     -    0s
H    0     0                    29860.000000 29825.1303  0.12%     -    0s
H    0     0                    29837.000000 29825.1303  0.04%     -    0s
H    0     0                    29835.000000 29825.1303  0.03%     -    0s
     0     0 29829.3421    0   15 29835.0000 29829.3421  0.02%     -    0s
     0     0 29829.3421    0    8 29835.0000 29829.3421  0.02%     -    0s
     0     0 29829.3421    0   15 29835.0000 29829.3421  0.02%     -    0s
H    0     0                    29833.000000 29829.3421  0.01%     -    0s
     0     1 29829.3451    0   15 29833.0000 29829.3451  0.01%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 2
  Implied bound: 4
  MIR: 5
  GUB cover: 1
  Zero half: 1

Explored 4 nodes (4013 simplex iterations) in 0.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.983300000000e+04, best bound 2.983200000000e+04, gap 0.0034%