Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:55 2012

Optimize a model with 121 rows, 93 columns and 393 nonzeros
Presolve time: 0.00s
Presolved: 121 rows, 93 columns, 393 nonzeros
Variable types: 0 continuous, 93 integer (93 binary)
Found heuristic solution: objective 27.0000000
Found heuristic solution: objective 26.0000000

Root relaxation: objective 0.000000e+00, 46 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   26.00000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.68182    0   33   15.00000    0.68182  95.5%     -    0s
     0     0    0.75921    0   35   15.00000    0.75921  94.9%     -    0s
     0     0    0.75921    0   35   15.00000    0.75921  94.9%     -    0s
H    0     0                      13.0000000    0.75921  94.2%     -    0s
     0     2    1.09091    0   35   13.00000    1.09091  91.6%     -    0s
*   13    10               9      12.0000000    4.21053  64.9%  17.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 1
  Mod-K: 1

Explored 57 nodes (823 simplex iterations) in 0.04 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%