Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:18:24 2013 Optimize a model with 1300 rows, 26150 columns and 53750 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.15s Presolved: 1200 rows, 26050 columns, 53400 nonzeros Variable types: 25600 continuous, 450 integer (450 binary) Root relaxation: objective 2.252562e+05, 2697 iterations, 0.08 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 0 0 225293.414 0 1 - 225293.414 - - 0s 0 0 225295.361 0 2 - 225295.361 - - 0s 0 0 225315.719 0 1 - 225315.719 - - 0s 0 0 225316.714 0 2 - 225316.714 - - 0s 0 0 225319.170 0 2 - 225319.170 - - 0s 0 0 225322.301 0 1 - 225322.301 - - 0s 0 0 225322.838 0 2 - 225322.838 - - 0s 0 0 225322.904 0 1 - 225322.904 - - 0s 0 0 225324.541 0 1 - 225324.541 - - 0s 0 0 225324.541 0 1 - 225324.541 - - 0s 0 0 225324.541 0 1 - 225324.541 - - 0s 0 0 225324.541 0 1 - 225324.541 - - 0s 0 0 225324.541 0 1 - 225324.541 - - 0s 0 0 225324.541 0 1 - 225324.541 - - 1s H 0 0 227793.19218 225324.541 1.08% - 1s 0 2 225340.808 0 1 227793.192 225340.808 1.08% - 1s * 10 4 10 225915.15199 225826.894 0.04% 69.0 1s Cutting planes: Flow cover: 11 Explored 13 nodes (4239 simplex iterations) in 1.69 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%