Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:24 2013

Optimize a model with 15678 rows, 15288 columns and 60918 nonzeros
Presolve removed 39 rows and 0 columns
Presolve time: 0.07s
Presolved: 15639 rows, 15288 columns, 60879 nonzeros
Variable types: 15249 continuous, 39 integer (39 binary)

Root relaxation: objective 3.803138e+04, 3037 iterations, 0.55 seconds

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

     0     0 38031.3767    0   33          - 38031.3767     -      -    0s
H    0     0                    46939.000000 38031.3767  19.0%     -    0s
     0     0 43051.0880    0    2 46939.0000 43051.0880  8.28%     -    1s
H    0     0                    44170.168895 43051.0880  2.53%     -    1s
H    0     0                    43467.000000 43051.0880  0.96%     -    1s
H    0     0                    43222.000000 43051.0880  0.40%     -    1s
     0     0 43105.3061    0    1 43222.0000 43105.3061  0.27%     -    1s
     0     2 43106.5835    0    1 43222.0000 43106.5835  0.27%     -    1s
*    1     1               1    43145.000000 43145.0000   0.0%  65.0    1s

Cutting planes:
  Implied bound: 33

Explored 2 nodes (3971 simplex iterations) in 1.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.314500000000e+04, best bound 4.314500000000e+04, gap 0.0%