Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:03 2013

Optimize a model with 12670 rows, 12320 columns and 49070 nonzeros
Presolve removed 35 rows and 0 columns
Presolve time: 0.05s
Presolved: 12635 rows, 12320 columns, 49035 nonzeros
Variable types: 12285 continuous, 35 integer (35 binary)

Root relaxation: objective 3.235060e+04, 1975 iterations, 0.42 seconds

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

     0     0 32350.6025    0   29          - 32350.6025     -      -    0s
H    0     0                    38866.000000 32350.6025  16.8%     -    0s
     0     0 37039.2833    0    5 38866.0000 37039.2833  4.70%     -    1s
H    0     0                    38503.575682 37039.2833  3.80%     -    1s
H    0     0                    38225.000000 37039.2833  3.10%     -    1s
H    0     0                    37449.000000 37039.2833  1.09%     -    1s
     0     0 37315.4356    0    4 37449.0000 37315.4356  0.36%     -    1s
     0     2 37325.2347    0    4 37449.0000 37325.2347  0.33%     -    1s

Cutting planes:
  Implied bound: 25

Explored 5 nodes (3760 simplex iterations) in 1.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.744900000000e+04, best bound 3.744900000000e+04, gap 0.0%