Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:19:26 2013 Optimize a model with 1100 rows, 25850 columns and 53800 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.15s Presolved: 1050 rows, 25800 columns, 53250 nonzeros Variable types: 25600 continuous, 200 integer (200 binary) Root relaxation: objective 2.252562e+05, 3383 iterations, 0.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 3 - 225256.157 - - 0s 0 0 225292.554 0 3 - 225292.554 - - 0s 0 0 225295.013 0 6 - 225295.013 - - 0s 0 0 225315.480 0 3 - 225315.480 - - 0s 0 0 225315.929 0 6 - 225315.929 - - 0s 0 0 225318.973 0 3 - 225318.973 - - 0s 0 0 225320.752 0 6 - 225320.752 - - 1s 0 0 225321.851 0 3 - 225321.851 - - 1s 0 0 225323.908 0 3 - 225323.908 - - 1s 0 0 225323.908 0 3 - 225323.908 - - 1s 0 0 225323.924 0 6 - 225323.924 - - 1s 0 0 225324.170 0 6 - 225324.170 - - 1s 0 0 225324.170 0 6 - 225324.170 - - 1s H 0 0 227793.19218 225324.170 1.08% - 1s 0 2 225324.170 0 6 227793.192 225324.170 1.08% - 2s * 10 3 10 225915.15199 225787.083 0.06% 77.2 2s Cutting planes: Flow cover: 12 Explored 13 nodes (5502 simplex iterations) in 2.89 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%