Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:59 2013

Optimize a model with 4662 rows, 4452 columns and 17682 nonzeros
Presolve removed 21 rows and 0 columns
Presolve time: 0.02s
Presolved: 4641 rows, 4452 columns, 17661 nonzeros
Variable types: 4431 continuous, 21 integer (21 binary)

Root relaxation: objective 2.241067e+04, 794 iterations, 0.04 seconds

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

     0     0 22410.6697    0   16          - 22410.6697     -      -    0s
H    0     0                    23495.000000 22410.6697  4.62%     -    0s
     0     0 23176.1496    0    2 23495.0000 23176.1496  1.36%     -    0s
H    0     0                    23361.302009 23176.1496  0.79%     -    0s
H    0     0                    23229.000000 23176.1496  0.23%     -    0s
     0     2 23203.3583    0    2 23229.0000 23203.3583  0.11%     -    0s

Cutting planes:
  Implied bound: 15

Explored 3 nodes (1087 simplex iterations) in 0.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.322900000000e+04, best bound 2.322700000000e+04, gap 0.0086%