Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:17:47 2013 Optimize a model with 1100 rows, 26900 columns and 57450 nonzeros Presolve removed 50 rows and 650 columns Presolve time: 0.08s Presolved: 1050 rows, 26250 columns, 56450 nonzeros Variable types: 26050 continuous, 200 integer (200 binary) Root relaxation: objective 2.252562e+05, 2926 iterations, 0.09 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 0 0 225292.554 0 2 - 225292.554 - - 0s 0 0 225295.013 0 4 - 225295.013 - - 0s 0 0 225315.480 0 2 - 225315.480 - - 0s 0 0 225316.163 0 4 - 225316.163 - - 0s 0 0 225319.306 0 2 - 225319.306 - - 0s 0 0 225321.750 0 2 - 225321.750 - - 0s 0 0 225321.936 0 4 - 225321.936 - - 0s 0 0 225323.481 0 2 - 225323.481 - - 0s 0 0 225324.482 0 2 - 225324.482 - - 0s 0 0 225324.770 0 2 - 225324.770 - - 0s 0 0 225324.826 0 2 - 225324.826 - - 0s 0 0 225324.969 0 2 - 225324.969 - - 0s 0 0 225324.969 0 2 - 225324.969 - - 0s H 0 0 227793.19218 225324.969 1.08% - 1s 0 2 225324.969 0 2 227793.192 225324.969 1.08% - 1s * 10 4 10 225915.15199 225831.011 0.04% 85.3 1s Cutting planes: Flow cover: 12 Explored 13 nodes (5188 simplex iterations) in 1.74 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%