Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:03 2013

Optimize a model with 16480 rows, 16080 columns and 64080 nonzeros
Presolve removed 40 rows and 0 columns
Presolve time: 0.07s
Presolved: 16440 rows, 16080 columns, 64040 nonzeros
Variable types: 16040 continuous, 40 integer (40 binary)

Root relaxation: objective 3.889296e+04, 2393 iterations, 0.49 seconds

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

     0     0 38892.9633    0   35          - 38892.9633     -      -    0s
H    0     0                    47096.000000 38892.9633  17.4%     -    0s
     0     0 42647.3311    0    2 47096.0000 42647.3311  9.45%     -    1s
H    0     0                    44293.996151 42647.3311  3.72%     -    1s
H    0     0                    44085.000000 42647.3311  3.26%     -    1s
H    0     0                    43899.000000 42647.3311  2.85%     -    1s
     0     0 42824.1901    0    2 43899.0000 42824.1901  2.45%     -    1s
H    0     0                    43760.000000 42824.1901  2.14%     -    1s
H    0     0                    43367.000000 42824.1901  1.25%     -    1s
H    0     0                    42860.000000 42824.1901  0.08%     -    1s
     0     0     cutoff    0      42860.0000 42860.0000   0.0%     -    1s

Cutting planes:
  Gomory: 1
  Implied bound: 32

Explored 1 nodes (3726 simplex iterations) in 1.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.286000000000e+04, best bound 4.286000000000e+04, gap 0.0%