Gurobi 5.0.1 (linux64) logging started Sat Dec  8 10:25:14 2012

Optimize a model with 3255 rows, 3240 columns and 11845 nonzeros
Presolve removed 380 rows and 92 columns
Presolve time: 0.02s
Presolved: 2875 rows, 3148 columns, 11016 nonzeros
Variable types: 2808 continuous, 340 integer (340 binary)

Root relaxation: objective 1.206553e+05, 488 iterations, 0.00 seconds

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

     0     0 120655.287    0    2          - 120655.287     -      -    0s
H    0     0                    120914.00000 120655.287  0.21%     -    0s
     0     0 120659.735    0    4 120914.000 120659.735  0.21%     -    0s
     0     0 120659.735    0    2 120914.000 120659.735  0.21%     -    0s
H    0     0                    120768.00000 120659.735  0.09%     -    0s
     0     0 120659.735    0    4 120768.000 120659.735  0.09%     -    0s
     0     0 120667.801    0    4 120768.000 120667.801  0.08%     -    0s
     0     0 120667.964    0    5 120768.000 120667.964  0.08%     -    0s
     0     0 120668.174    0    4 120768.000 120668.174  0.08%     -    0s
     0     2 120669.869    0    4 120768.000 120669.869  0.08%     -    0s
*    3     3               2    120688.00000 120688.000   0.0%   4.3    0s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 4 nodes (875 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.206880000000e+05, best bound 1.206880000000e+05, gap 0.0%