Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:34 2013 Optimize a model with 200 rows, 1210 columns and 2670 nonzeros Presolve removed 10 rows and 70 columns Presolve time: 0.00s Presolved: 190 rows, 1140 columns, 2570 nonzeros Variable types: 1110 continuous, 30 integer (30 binary) Root relaxation: objective 1.997658e+04, 124 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19976.5790 0 2 - 19976.5790 - - 0s 0 0 20005.1285 0 6 - 20005.1285 - - 0s 0 0 20009.6054 0 6 - 20009.6054 - - 0s 0 0 20011.6270 0 6 - 20011.6270 - - 0s 0 0 20011.6484 0 6 - 20011.6484 - - 0s 0 0 20011.6484 0 6 - 20011.6484 - - 0s H 0 0 20184.435784 20011.6484 0.86% - 0s 0 2 20012.3213 0 6 20184.4358 20012.3213 0.85% - 0s * 4 2 3 20159.818049 20105.1605 0.27% 14.5 0s * 8 2 4 20156.328750 20139.0446 0.09% 10.0 0s Cutting planes: Gomory: 2 Flow cover: 5 Explored 11 nodes (276 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.015632875028e+04, best bound 2.015632875028e+04, gap 0.0%