Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:56:30 2013

Optimize a model with 7806 rows, 1296 columns and 23976 nonzeros
Presolve removed 1773 rows and 688 columns
Presolve time: 0.05s
Presolved: 6033 rows, 608 columns, 18528 nonzeros
Variable types: 13 continuous, 595 integer (595 binary)
Found heuristic solution: objective 25636.000000

Root relaxation: objective 2.020261e+04, 1855 iterations, 0.05 seconds

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

     0     0 20202.6111    0   11 25636.0000 20202.6111  21.2%     -    0s
H    0     0                    20215.000000 20202.6111  0.06%     -    0s
H    0     0                    20211.000000 20202.6111  0.04%     -    0s
     0     0 20203.1882    0   22 20211.0000 20203.1882  0.04%     -    0s
     0     0 20203.1882    0    6 20211.0000 20203.1882  0.04%     -    0s
     0     0 20203.3299    0   21 20211.0000 20203.3299  0.04%     -    0s
     0     0 20204.1597    0   26 20211.0000 20204.1597  0.03%     -    0s
     0     0 20204.2663    0   27 20211.0000 20204.2663  0.03%     -    0s
     0     0 20204.8916    0   28 20211.0000 20204.8916  0.03%     -    0s
     0     0 20205.1809    0   30 20211.0000 20205.1809  0.03%     -    0s
     0     0 20205.3938    0   28 20211.0000 20205.3938  0.03%     -    0s
     0     0 20205.4363    0   30 20211.0000 20205.4363  0.03%     -    0s
     0     0 20205.5135    0   33 20211.0000 20205.5135  0.03%     -    0s
H    0     0                    20209.000000 20205.5135  0.02%     -    0s
     0     2 20205.6351    0   26 20209.0000 20205.6351  0.02%     -    0s

Cutting planes:
  MIR: 26
  Zero half: 1

Explored 44 nodes (2738 simplex iterations) in 0.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.020900000000e+04, best bound 2.020800000000e+04, gap 0.0049%