Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:03 2012

Optimize a model with 121 rows, 94 columns and 394 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 121 rows, 93 columns, 393 nonzeros
Variable types: 0 continuous, 93 integer (92 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 0.000000e+00, 51 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   32   23.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.46875    0   33   19.00000    0.46875  97.5%     -    0s
     0     0    1.04400    0   35   19.00000    1.04400  94.5%     -    0s
     0     0    1.19148    0   36   19.00000    1.19148  93.7%     -    0s
H    0     0                      18.0000000    1.19148  93.4%     -    0s
     0     0    1.19930    0   37   18.00000    1.19930  93.3%     -    0s
H    0     0                      17.0000000    1.19930  92.9%     -    0s
     0     2    1.20401    0   37   17.00000    1.20401  92.9%     -    0s
*   19    16              14      14.0000000    2.74551  80.4%  17.6    0s
*   78    31               8      13.0000000    6.15517  52.7%  15.3    0s
*   88    21               7      12.0000000    7.82418  34.8%  15.3    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 132 nodes (2020 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%