Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:36 2013 Optimize a model with 200 rows, 1110 columns and 2380 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 190 rows, 1100 columns, 2320 nonzeros Variable types: 1070 continuous, 30 integer (30 binary) Root relaxation: objective 2.162324e+04, 159 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21623.2446 0 4 - 21623.2446 - - 0s 0 0 21647.0929 0 6 - 21647.0929 - - 0s 0 0 21647.0929 0 6 - 21647.0929 - - 0s 0 0 21647.0929 0 6 - 21647.0929 - - 0s H 0 0 21755.839828 21647.0929 0.50% - 0s 0 1 21743.1228 0 4 21755.8398 21743.1228 0.06% - 0s Cutting planes: Gomory: 2 Flow cover: 3 Explored 4 nodes (316 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.175583982773e+04, best bound 2.175583982773e+04, gap 0.0%