Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:53:18 2013 Optimize a model with 1300 rows, 27950 columns and 71100 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.12s Presolved: 1250 rows, 27900 columns, 68550 nonzeros Variable types: 27600 continuous, 300 integer (300 binary) Root relaxation: objective 1.959342e+05, 2107 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 195934.242 0 9 - 195934.242 - - 0s 0 0 195970.344 0 9 - 195970.344 - - 0s 0 0 195971.103 0 10 - 195971.103 - - 0s 0 0 195971.103 0 10 - 195971.103 - - 0s 0 0 195971.801 0 9 - 195971.801 - - 0s 0 0 195971.801 0 9 - 195971.801 - - 0s 0 0 195971.864 0 9 - 195971.864 - - 0s 0 0 195972.279 0 9 - 195972.279 - - 0s 0 0 195972.927 0 9 - 195972.927 - - 0s 0 0 195972.927 0 9 - 195972.927 - - 0s 0 0 195972.927 0 9 - 195972.927 - - 1s 0 0 195972.927 0 9 - 195972.927 - - 1s 0 0 195972.927 0 9 - 195972.927 - - 1s H 0 0 200478.66182 195972.927 2.25% - 1s 0 2 195972.927 0 9 200478.662 195972.927 2.25% - 1s * 12 4 12 196570.65000 196354.570 0.11% 46.9 2s H 27 2 196566.69272 196532.655 0.02% 35.0 2s * 39 3 20 196565.55616 196532.655 0.02% 25.2 2s Cutting planes: Flow cover: 11 Explored 41 nodes (4493 simplex iterations) in 2.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965655561565e+05, best bound 1.965574747002e+05, gap 0.0041%