Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:10 2013

Optimize a model with 100 rows, 2550 columns and 5050 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 100 rows, 2549 columns, 5049 nonzeros
Variable types: 2500 continuous, 49 integer (49 binary)

Root relaxation: objective 7.897915e+05, 61 iterations, 0.00 seconds

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

     0     0 789791.512    0   44          - 789791.512     -      -    0s
H    0     0                    1238433.6125 789791.512  36.2%     -    0s
H    0     0                    1138887.0125 789791.512  30.7%     -    0s
     0     0 861514.074    0   27 1138887.01 861514.074  24.4%     -    0s
H    0     0                    1134421.0039 861514.074  24.1%     -    0s
H    0     0                    998857.00000 861514.074  13.8%     -    0s
     0     0 879600.768    0   25 998857.000 879600.768  11.9%     -    0s
     0     0 891659.231    0   21 998857.000 891659.231  10.7%     -    0s
     0     0 898221.588    0   16 998857.000 898221.588  10.1%     -    0s
     0     0 899107.126    0   10 998857.000 899107.126  10.0%     -    0s
H    0     0                    975314.76906 899107.126  7.81%     -    0s
H    0     0                    912406.98750 899107.126  1.46%     -    0s
H    0     0                    901377.21250 899107.126  0.25%     -    0s
     0     1 899917.475    0    4 901377.212 899917.475  0.16%     -    0s

Cutting planes:
  Implied bound: 130
  Flow cover: 3

Explored 12 nodes (404 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.013772125000e+05, best bound 9.013228618515e+05, gap 0.0060%