Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:15 2013 Optimize a model with 253 rows, 5313 columns and 10603 nonzeros Presolve time: 0.01s Presolved: 253 rows, 5313 columns, 10603 nonzeros Variable types: 5290 continuous, 23 integer (23 binary) Root relaxation: objective 2.220472e+04, 224 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22204.7172 0 5 - 22204.7172 - - 0s H 0 0 22755.000000 22204.7172 2.42% - 0s H 0 0 22303.000000 22204.7172 0.44% - 0s 0 0 22266.2857 0 2 22303.0000 22266.2857 0.16% - 0s 0 0 22269.3288 0 4 22303.0000 22269.3288 0.15% - 0s 0 0 22271.2083 0 1 22303.0000 22271.2083 0.14% - 0s 0 0 22293.4545 0 1 22303.0000 22293.4545 0.04% - 0s Cutting planes: Implied bound: 21 Flow cover: 1 Explored 0 nodes (308 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.230300000000e+04, best bound 2.230300000000e+04, gap 0.0%