Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:58:58 2013

Optimize a model with 39773 rows, 3844 columns and 121086 nonzeros
Presolve removed 2636 rows and 1935 columns
Presolve time: 0.29s
Presolved: 37137 rows, 1909 columns, 113181 nonzeros
Variable types: 30 continuous, 1879 integer (1879 binary)
Found heuristic solution: objective 78629.000000

Root relaxation: objective 5.882664e+04, 11856 iterations, 0.84 seconds

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

     0     0 58826.6364    0   14 78629.0000 58826.6364  25.2%     -    1s
H    0     0                    58858.000000 58826.6364  0.05%     -    1s
H    0     0                    58845.000000 58826.6364  0.03%     -    1s
H    0     0                    58838.000000 58826.6364  0.02%     -    1s
     0     0 58826.6364    0   21 58838.0000 58826.6364  0.02%     -    1s
     0     0 58826.6364    0   15 58838.0000 58826.6364  0.02%     -    1s
     0     0 58826.6364    0   18 58838.0000 58826.6364  0.02%     -    2s
     0     2 58826.6364    0   17 58838.0000 58826.6364  0.02%     -    2s
H    5     5                    58833.000000 58826.6826  0.01%   9.0    2s
H   80    51                    58832.000000 58826.8217  0.01%  99.2    3s

Cutting planes:
  Gomory: 6
  Implied bound: 1
  MIR: 14
  Zero half: 5
  Mod-K: 1

Explored 80 nodes (23373 simplex iterations) in 3.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.883200000000e+04, best bound 5.882700000000e+04, gap 0.0085%