Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:11 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 8.430595e+05, 69 iterations, 0.00 seconds

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

     0     0 843059.512    0   44          - 843059.512     -      -    0s
H    0     0                    1473433.6125 843059.512  42.8%     -    0s
H    0     0                    1303887.0125 843059.512  35.3%     -    0s
     0     0 921041.912    0   27 1303887.01 921041.912  29.4%     -    0s
H    0     0                    1125980.5500 921041.912  18.2%     -    0s
     0     0 940719.390    0   25 1125980.55 940719.390  16.5%     -    0s
     0     0 953824.512    0   21 1125980.55 953824.512  15.3%     -    0s
     0     0 963572.205    0   19 1125980.55 963572.205  14.4%     -    0s
     0     0 965706.222    0   14 1125980.55 965706.222  14.2%     -    0s
H    0     0                    1015136.8000 965706.222  4.87%     -    0s
     0     2 965902.139    0   14 1015136.80 965902.139  4.85%     -    0s
H   15    15                    1004845.5830 966528.344  3.81%   6.2    0s
H   21    21                    987537.67118 966528.344  2.13%   5.5    0s
*   27     9              27    970567.75000 966528.344  0.42%   5.0    0s

Cutting planes:
  Implied bound: 170
  Flow cover: 11

Explored 56 nodes (803 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.705677500000e+05, best bound 9.704725431498e+05, gap 0.0098%