Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:44:31 2012

Optimize a model with 499 rows, 470 columns and 1715 nonzeros
Presolve removed 0 rows and 21 columns
Presolve time: 0.00s
Presolved: 499 rows, 449 columns, 1694 nonzeros
Variable types: 0 continuous, 449 integer (448 binary)
Found heuristic solution: objective 91.0000000

Root relaxation: objective 0.000000e+00, 242 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  189   91.00000    0.00000   100%     -    0s
H    0     0                      66.0000000    0.00000   100%     -    0s
H    0     0                      64.0000000    0.00000   100%     -    0s
     0     0    0.39820    0  191   64.00000    0.39820  99.4%     -    0s
H    0     0                      63.0000000    0.39820  99.4%     -    0s
     0     0    0.86957    0  194   63.00000    0.86957  98.6%     -    0s
H    0     0                      54.0000000    0.86957  98.4%     -    0s
H    0     0                      53.0000000    0.86957  98.4%     -    0s
     0     0    0.87028    0  197   53.00000    0.87028  98.4%     -    0s
     0     0    0.87028    0  197   53.00000    0.87028  98.4%     -    0s
H    0     0                      51.0000000    0.87028  98.3%     -    0s
H    0     0                      49.0000000    0.87028  98.2%     -    0s
     0     2    0.87044    0  195   49.00000    0.87044  98.2%     -    0s
H   27    27                      23.0000000    1.00000  95.7%  33.9    0s
*   46    31              30      15.0000000    1.00000  93.3%  29.4    0s
H  331   112                      13.0000000    3.72946  71.3%  34.1    0s

Cutting planes:
  Gomory: 4
  Mod-K: 2

Explored 875 nodes (28324 simplex iterations) in 1.23 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%