Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:57:36 2013 Optimize a model with 1700 rows, 28100 columns and 58050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.29s Presolved: 1600 rows, 27950 columns, 55900 nonzeros Variable types: 27000 continuous, 950 integer (950 binary) Root relaxation: objective 1.959342e+05, 2656 iterations, 0.14 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 195934.242 0 3 - 195934.242 - - 0s 0 0 196016.412 0 3 - 196016.412 - - 0s 0 0 196092.677 0 3 - 196092.677 - - 0s 0 0 196101.631 0 3 - 196101.631 - - 0s 0 0 196106.224 0 3 - 196106.224 - - 0s 0 0 196107.586 0 3 - 196107.586 - - 0s 0 0 196108.097 0 3 - 196108.097 - - 1s 0 0 196108.633 0 3 - 196108.633 - - 1s 0 0 196108.633 0 3 - 196108.633 - - 1s 0 0 196115.109 0 3 - 196115.109 - - 1s 0 0 196115.667 0 3 - 196115.667 - - 1s 0 0 196117.625 0 3 - 196117.625 - - 1s 0 0 196120.387 0 3 - 196120.387 - - 1s 0 0 196121.227 0 3 - 196121.227 - - 1s 0 0 196121.227 0 3 - 196121.227 - - 1s 0 0 196121.297 0 3 - 196121.297 - - 1s 0 0 196121.687 0 3 - 196121.687 - - 2s 0 0 196121.687 0 3 - 196121.687 - - 2s H 0 0 201111.11831 196121.687 2.48% - 2s 0 2 196137.280 0 3 201111.118 196137.280 2.47% - 2s H 27 14 196588.29403 196213.860 0.19% 14.9 3s * 46 14 10 196570.65000 196335.518 0.12% 16.6 3s H 57 3 196565.79498 196527.049 0.02% 22.7 3s Cutting planes: Flow cover: 30 Explored 74 nodes (4668 simplex iterations) in 3.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965657949779e+05, best bound 1.965517232131e+05, gap 0.0072%