Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:46:37 2013 Optimize a model with 1000 rows, 25550 columns and 51900 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.14s Presolved: 950 rows, 25500 columns, 51600 nonzeros Variable types: 25350 continuous, 150 integer (150 binary) Root relaxation: objective 2.252562e+05, 3096 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 2 - 225256.157 - - 0s H 0 0 238378.87772 225256.157 5.50% - 0s H 0 0 227969.38246 225256.157 1.19% - 0s 0 0 225292.554 0 2 227969.382 225292.554 1.17% - 0s 0 0 225294.777 0 4 227969.382 225294.777 1.17% - 0s 0 0 225315.480 0 2 227969.382 225315.480 1.16% - 0s 0 0 225316.144 0 4 227969.382 225316.144 1.16% - 0s 0 0 225318.875 0 4 227969.382 225318.875 1.16% - 0s 0 0 225322.671 0 2 227969.382 225322.671 1.16% - 0s 0 0 225323.139 0 4 227969.382 225323.139 1.16% - 0s 0 0 225323.457 0 2 227969.382 225323.457 1.16% - 0s 0 0 225324.146 0 2 227969.382 225324.146 1.16% - 1s 0 0 225324.391 0 2 227969.382 225324.391 1.16% - 1s 0 0 225324.778 0 2 227969.382 225324.778 1.16% - 1s 0 0 225324.864 0 2 227969.382 225324.864 1.16% - 1s 0 0 225324.864 0 2 227969.382 225324.864 1.16% - 1s H 0 0 227611.06234 225324.864 1.00% - 1s 0 2 225419.498 0 2 227611.062 225419.498 0.96% - 1s * 10 3 10 225915.15199 225869.583 0.02% 68.2 2s Cutting planes: Flow cover: 12 Explored 13 nodes (4575 simplex iterations) in 2.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.259151519913e+05, best bound 2.259151519913e+05, gap 0.0%