Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:35:16 2012

Optimize a model with 825 rows, 810 columns and 2966 nonzeros
Presolve removed 76 rows and 17 columns
Presolve time: 0.00s
Presolved: 749 rows, 793 columns, 2802 nonzeros
Variable types: 707 continuous, 86 integer (86 binary)

Root relaxation: objective 2.926981e+04, 134 iterations, 0.00 seconds

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

     0     0 29269.8131    0    8          - 29269.8131     -      -    0s
H    0     0                    30320.000000 29269.8131  3.46%     -    0s
H    0     0                    30121.000000 29269.8131  2.83%     -    0s
     0     0 29318.9683    0   16 30121.0000 29318.9683  2.66%     -    0s
     0     0 29330.2837    0   18 30121.0000 29330.2837  2.63%     -    0s
     0     0 29332.1424    0   17 30121.0000 29332.1424  2.62%     -    0s
     0     0 29333.2556    0   18 30121.0000 29333.2556  2.62%     -    0s
     0     0 29334.5134    0   19 30121.0000 29334.5134  2.61%     -    0s
     0     2 29348.5373    0   19 30121.0000 29348.5373  2.56%     -    0s
*   19    14              18    29631.000000 29441.1700  0.64%   3.5    0s
*   52    16              11    29607.000000 29474.2059  0.45%   2.8    0s

Cutting planes:
  Gomory: 4
  Flow cover: 7

Explored 90 nodes (461 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.960700000000e+04, best bound 2.960700000000e+04, gap 0.0%