Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:17:02 2013 Optimize a model with 800 rows, 25400 columns and 50850 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.16s Presolved: 700 rows, 25250 columns, 50500 nonzeros Variable types: 25200 continuous, 50 integer (50 binary) Root relaxation: objective 2.252562e+05, 3279 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 1 - 225256.157 - - 0s H 0 0 229476.15683 225256.157 1.84% - 0s 0 0 225292.554 0 1 229476.157 225292.554 1.82% - 0s 0 0 225295.460 0 1 229476.157 225295.460 1.82% - 0s 0 0 225315.480 0 1 229476.157 225315.480 1.81% - 0s 0 0 225317.099 0 2 229476.157 225317.099 1.81% - 0s 0 0 225318.460 0 2 229476.157 225318.460 1.81% - 0s 0 0 225322.208 0 2 229476.157 225322.208 1.81% - 0s 0 0 225322.268 0 1 229476.157 225322.268 1.81% - 0s 0 0 225323.259 0 2 229476.157 225323.259 1.81% - 0s H 0 0 227360.35455 225323.259 0.90% - 1s 0 0 225323.295 0 2 227360.355 225323.295 0.90% - 1s 0 0 225323.871 0 2 227360.355 225323.871 0.90% - 1s 0 0 225324.396 0 1 227360.355 225324.396 0.90% - 1s 0 0 225324.853 0 1 227360.355 225324.853 0.90% - 1s 0 0 225325.055 0 1 227360.355 225325.055 0.90% - 1s 0 0 225325.055 0 1 227360.355 225325.055 0.90% - 1s 0 2 225376.985 0 1 227360.355 225376.985 0.87% - 1s * 8 4 8 225915.15199 225822.972 0.04% 77.8 2s Cutting planes: Flow cover: 14 Explored 11 nodes (4468 simplex iterations) in 2.06 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%