Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:15:39 2013

Optimize a model with 987 rows, 324 columns and 3078 nonzeros
Presolve removed 313 rows and 173 columns
Presolve time: 0.00s
Presolved: 674 rows, 151 columns, 2141 nonzeros
Variable types: 8 continuous, 143 integer (143 binary)
Found heuristic solution: objective 4898.0000000

Root relaxation: objective 4.086864e+03, 13 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 4086.86364    0    4 4898.00000 4086.86364  16.6%     -    0s
     0     0 4088.31382    0    9 4898.00000 4088.31382  16.5%     -    0s
H    0     0                    4581.0000000 4088.31382  10.8%     -    0s
*    0     0               0    4090.0000000 4090.00000   0.0%     -    0s

Cutting planes:
  MIR: 7
  Zero half: 1

Explored 0 nodes (44 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.090000000000e+03, best bound 4.090000000000e+03, gap 0.0%