Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:08 2013

Optimize a model with 75 rows, 1275 columns and 2525 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 75 rows, 1274 columns, 2524 nonzeros
Variable types: 1250 continuous, 24 integer (24 binary)

Root relaxation: objective 9.591521e+05, 54 iterations, 0.00 seconds

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

     0     0 959152.087    0   19          - 959152.087     -      -    0s
H    0     0                    1264374.1750 959152.087  24.1%     -    0s
H    0     0                    1230745.7625 959152.087  22.1%     -    0s
     0     0 1045769.06    0   12 1230745.76 1045769.06  15.0%     -    0s
     0     0 1061585.66    0   11 1230745.76 1061585.66  13.7%     -    0s
     0     0 1066620.20    0   10 1230745.76 1066620.20  13.3%     -    0s
H    0     0                    1217103.7775 1066620.20  12.4%     -    0s
     0     0 1068137.77    0    5 1217103.78 1068137.77  12.2%     -    0s
H    0     0                    1148100.8509 1068137.77  6.96%     -    0s
H    0     0                    1069369.5250 1068137.77  0.12%     -    0s
     0     0 1068137.77    0   15 1069369.52 1068137.77  0.12%     -    0s
     0     0 1068137.77    0    8 1069369.52 1068137.77  0.12%     -    0s
     0     0 1068137.77    0    8 1069369.52 1068137.77  0.12%     -    0s
     0     0 1068137.77    0    7 1069369.52 1068137.77  0.12%     -    0s
     0     0 1069287.99    0    3 1069369.52 1069287.99  0.01%     -    0s

Cutting planes:
  Implied bound: 72
  Flow cover: 2

Explored 0 nodes (369 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.069369525000e+06, best bound 1.069287990171e+06, gap 0.0076%