Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:09:20 2012

Optimize a model with 475 rows, 443 columns and 1628 nonzeros
Presolve removed 0 rows and 12 columns
Presolve time: 0.00s
Presolved: 475 rows, 431 columns, 1616 nonzeros
Variable types: 0 continuous, 431 integer (430 binary)
Found heuristic solution: objective 91.0000000

Root relaxation: objective 0.000000e+00, 238 iterations, 0.00 seconds

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

     0     0    0.00000    0  179   91.00000    0.00000   100%     -    0s
H    0     0                      62.0000000    0.00000   100%     -    0s
     0     0    0.25420    0  181   62.00000    0.25420   100%     -    0s
H    0     0                      59.0000000    0.25420   100%     -    0s
     0     0    0.80921    0  186   59.00000    0.80921  98.6%     -    0s
H    0     0                      48.0000000    0.80921  98.3%     -    0s
     0     0    0.81229    0  193   48.00000    0.81229  98.3%     -    0s
     0     0    0.81229    0  190   48.00000    0.81229  98.3%     -    0s
H    0     0                      34.0000000    0.81229  97.6%     -    0s
     0     2    0.81267    0  189   34.00000    0.81267  97.6%     -    0s
H   27    19                      12.0000000    1.00000  91.7%  41.1    0s

Cutting planes:
  Gomory: 4
  Mod-K: 2

Explored 265 nodes (12485 simplex iterations) in 0.55 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%