Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:03 2012

Optimize a model with 479 rows, 454 columns and 1649 nonzeros
Presolve removed 0 rows and 24 columns
Presolve time: 0.00s
Presolved: 479 rows, 430 columns, 1625 nonzeros
Variable types: 0 continuous, 430 integer (429 binary)
Found heuristic solution: objective 91.0000000

Root relaxation: objective 0.000000e+00, 241 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  184   91.00000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
     0     0    0.25332    0  186   54.00000    0.25332   100%     -    0s
H    0     0                      49.0000000    0.25332  99.5%     -    0s
     0     0    0.78284    0  189   49.00000    0.78284  98.4%     -    0s
H    0     0                      35.0000000    0.78284  97.8%     -    0s
     0     0    0.78284    0  189   35.00000    0.78284  97.8%     -    0s
     0     2    0.78304    0  189   35.00000    0.78304  97.8%     -    0s
H   27    27                      33.0000000    1.00000  97.0%  42.3    0s
*   36    30              19      15.0000000    1.00000  93.3%  38.9    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 1192 nodes (32220 simplex iterations) in 1.28 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%