Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:11:10 2012

Optimize a model with 431 rows, 423 columns and 1498 nonzeros
Presolve removed 0 rows and 31 columns
Presolve time: 0.00s
Presolved: 431 rows, 392 columns, 1467 nonzeros
Variable types: 0 continuous, 392 integer (391 binary)
Found heuristic solution: objective 77.0000000

Root relaxation: objective 0.000000e+00, 246 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  172   77.00000    0.00000   100%     -    0s
H    0     0                      58.0000000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
H    0     0                      51.0000000    0.00000   100%     -    0s
     0     0    0.47066    0  176   51.00000    0.47066  99.1%     -    0s
H    0     0                      45.0000000    0.47066  99.0%     -    0s
H    0     0                      43.0000000    0.47066  98.9%     -    0s
     0     0    1.08402    0  177   43.00000    1.08402  97.5%     -    0s
H    0     0                      41.0000000    1.08402  97.4%     -    0s
     0     0    1.08427    0  179   41.00000    1.08427  97.4%     -    0s
     0     0    1.08427    0  179   41.00000    1.08427  97.4%     -    0s
H    0     0                      35.0000000    1.08427  96.9%     -    0s
     0     2    1.09495    0  179   35.00000    1.09495  96.9%     -    0s
H   27    27                      34.0000000    2.27654  93.3%  35.6    0s
*   30    30              16      13.0000000    2.27654  82.5%  34.7    0s

Cutting planes:
  Gomory: 4
  Mod-K: 1

Explored 526 nodes (14354 simplex iterations) in 0.58 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%