Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:00:21 2013

Optimize a model with 43744 rows, 4096 columns and 133120 nonzeros
Presolve removed 4097 rows and 2087 columns
Presolve time: 0.34s
Presolved: 39647 rows, 2009 columns, 120586 nonzeros
Variable types: 27 continuous, 1982 integer (1982 binary)
Found heuristic solution: objective 84049.000000

Root relaxation: objective 6.306060e+04, 11647 iterations, 0.92 seconds

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

     0     0 63060.6000    0   10 84049.0000 63060.6000  25.0%     -    1s
H    0     0                    63088.000000 63060.6000  0.04%     -    1s
H    0     0                    63073.000000 63060.6000  0.02%     -    1s
H    0     0                    63068.000000 63060.6000  0.01%     -    1s
     0     0 63061.8548    0   22 63068.0000 63061.8548  0.01%     -    1s

Cutting planes:
  Gomory: 4
  Implied bound: 1
  MIR: 8

Explored 0 nodes (11767 simplex iterations) in 1.61 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.306800000000e+04, best bound 6.306200000000e+04, gap 0.0095%