Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:21:34 2012

Optimize a model with 475 rows, 451 columns and 1636 nonzeros
Presolve removed 0 rows and 31 columns
Presolve time: 0.00s
Presolved: 475 rows, 420 columns, 1605 nonzeros
Variable types: 0 continuous, 420 integer (419 binary)
Found heuristic solution: objective 88.0000000

Root relaxation: objective 0.000000e+00, 236 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  178   88.00000    0.00000   100%     -    0s
H    0     0                      59.0000000    0.00000   100%     -    0s
     0     0    0.38724    0  181   59.00000    0.38724  99.3%     -    0s
H    0     0                      51.0000000    0.38724  99.2%     -    0s
     0     0    0.69682    0  183   51.00000    0.69682  98.6%     -    0s
H    0     0                      44.0000000    0.69682  98.4%     -    0s
     0     2    0.69789    0  183   44.00000    0.69789  98.4%     -    0s
H   27    27                      33.0000000    1.00000  97.0%  35.3    0s
H   81    43                      20.0000000    1.00000  95.0%  23.7    0s
H  179    89                      18.0000000    3.46667  80.7%  28.5    0s
*  981   172              27      17.0000000    8.26214  51.4%  29.7    1s
* 1108   108              24      16.0000000    9.23810  42.3%  29.0    1s

Explored 1585 nodes (44809 simplex iterations) in 1.87 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%