Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:26 2012

Optimize a model with 173 rows, 141 columns and 571 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 173 rows, 139 columns, 569 nonzeros
Variable types: 0 continuous, 139 integer (138 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 99 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   50   33.00000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
H    0     0                      25.0000000    0.00000   100%     -    0s
     0     0    0.59529    0   51   25.00000    0.59529  97.6%     -    0s
H    0     0                      22.0000000    0.59529  97.3%     -    0s
     0     0    1.16875    0   54   22.00000    1.16875  94.7%     -    0s
H    0     0                      20.0000000    1.16875  94.2%     -    0s
     0     0    1.16875    0   54   20.00000    1.16875  94.2%     -    0s
     0     0    1.16875    0   53   20.00000    1.16875  94.2%     -    0s
     0     2    1.16875    0   53   20.00000    1.16875  94.2%     -    0s
*   21    21              15      18.0000000    2.46605  86.3%  19.1    0s
H   27    18                      16.0000000    2.56952  83.9%  21.3    0s
*  104    63              12      15.0000000    5.10000  66.0%  22.3    0s
*  202    69              14      14.0000000    5.73631  59.0%  19.0    0s
H  356    60                      13.0000000    6.78788  47.8%  18.7    0s

Cutting planes:
  Gomory: 3
  Zero half: 2

Explored 512 nodes (9174 simplex iterations) in 0.24 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%