Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:38 2013 Optimize a model with 2140 rows, 3020 columns and 10010 nonzeros Presolve removed 30 rows and 20 columns Presolve time: 0.11s Presolved: 2110 rows, 3000 columns, 7980 nonzeros Variable types: 2010 continuous, 990 integer (990 binary) Root relaxation: objective 2.199252e+04, 755 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21992.5209 0 2 - 21992.5209 - - 0s 0 0 22059.8181 0 2 - 22059.8181 - - 0s 0 0 22073.5638 0 3 - 22073.5638 - - 0s 0 0 22082.6414 0 3 - 22082.6414 - - 0s 0 0 22098.2238 0 3 - 22098.2238 - - 0s 0 0 22098.6959 0 3 - 22098.6959 - - 0s 0 0 22099.3565 0 3 - 22099.3565 - - 0s 0 0 22099.6644 0 3 - 22099.6644 - - 0s 0 0 22100.1413 0 3 - 22100.1413 - - 0s H 0 0 23350.570301 22100.1413 5.36% - 0s 0 2 22100.3293 0 3 23350.5703 22100.3293 5.35% - 0s H 27 27 22487.367385 22105.2352 1.70% 7.6 0s * 145 50 142 22460.006797 22105.2352 1.58% 5.0 1s H 162 17 22136.461698 22109.3493 0.12% 4.9 1s * 244 2 16 22134.953373 22132.2297 0.01% 5.9 1s Cutting planes: Gomory: 4 Flow cover: 9 Explored 247 nodes (2480 simplex iterations) in 1.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.213495337267e+04, best bound 2.213495337267e+04, gap 0.0%