Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:56 2013

Optimize a model with 11286 rows, 10956 columns and 43626 nonzeros
Presolve removed 33 rows and 0 columns
Presolve time: 0.05s
Presolved: 11253 rows, 10956 columns, 43593 nonzeros
Variable types: 10923 continuous, 33 integer (33 binary)

Root relaxation: objective 3.166193e+04, 1475 iterations, 0.17 seconds

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

     0     0 31661.9308    0   28          - 31661.9308     -      -    0s
H    0     0                    37423.000000 31661.9308  15.4%     -    0s
     0     0 35214.0641    0    6 37423.0000 35214.0641  5.90%     -    0s
H    0     0                    37222.817366 35214.0641  5.40%     -    0s
H    0     0                    36505.000000 35214.0641  3.54%     -    0s
     0     0 35279.8653    0    4 36505.0000 35279.8653  3.36%     -    0s
H    0     0                    36173.000000 35279.8653  2.47%     -    0s
     0     2 35287.1012    0    4 36173.0000 35287.1012  2.45%     -    0s
H    4     4                    36080.558442 35421.1028  1.83%  51.8    0s
H    9     5                    35943.222222 35421.1028  1.45%  45.8    1s
*   10     6               8    35871.000000 35421.1028  1.25%  41.9    1s
H   13     3                    35723.000000 35446.5195  0.77%  40.2    1s
*   15     5               4    35477.000000 35446.5195  0.09%  41.1    1s

Cutting planes:
  Gomory: 1
  Implied bound: 30

Explored 19 nodes (2891 simplex iterations) in 1.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.547700000000e+04, best bound 3.547551596607e+04, gap 0.0042%