Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:55:06 2013

Optimize a model with 22151 rows, 2601 columns and 67626 nonzeros
Presolve removed 2060 rows and 1317 columns
Presolve time: 0.15s
Presolved: 20091 rows, 1284 columns, 61473 nonzeros
Variable types: 25 continuous, 1259 integer (1259 binary)
Found heuristic solution: objective 46528.000000

Root relaxation: objective 3.521167e+04, 10617 iterations, 0.65 seconds

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

     0     0 35211.6667    0   10 46528.0000 35211.6667  24.3%     -    0s
H    0     0                    35230.000000 35211.6667  0.05%     -    0s
H    0     0                    35226.000000 35211.6667  0.04%     -    0s
H    0     0                    35225.000000 35211.6667  0.04%     -    0s
     0     0 35212.0000    0   25 35225.0000 35212.0000  0.04%     -    1s
     0     0 35212.0000    0   16 35225.0000 35212.0000  0.04%     -    1s
H    0     0                    35221.000000 35212.0000  0.03%     -    1s
H    0     0                    35218.000000 35212.0000  0.02%     -    1s
     0     0 35212.0000    0   13 35218.0000 35212.0000  0.02%     -    1s
     0     2 35212.0000    0   11 35218.0000 35212.0000  0.02%     -    1s
H  911    88                    35216.000000 35214.3134  0.00%  11.0    1s

Cutting planes:
  Gomory: 5
  Cover: 10
  Implied bound: 2
  MIR: 42
  Zero half: 18

Explored 911 nodes (23367 simplex iterations) in 1.77 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.521600000000e+04, best bound 3.521500000000e+04, gap 0.0028%