Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:46:01 2013 Optimize a model with 3200 rows, 32600 columns and 70050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.28s Presolved: 3100 rows, 32450 columns, 64900 nonzeros Variable types: 30000 continuous, 2450 integer (2450 binary) Root relaxation: objective 2.252562e+05, 4302 iterations, 0.16 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 225289.104 0 2 - 225289.104 - - 0s 0 0 225289.759 0 2 - 225289.759 - - 0s 0 0 225290.487 0 2 - 225290.487 - - 0s 0 0 225290.487 0 2 - 225290.487 - - 0s 0 0 225292.744 0 2 - 225292.744 - - 0s 0 0 225292.744 0 2 - 225292.744 - - 0s 0 0 225292.744 0 2 - 225292.744 - - 1s 0 0 225294.354 0 2 - 225294.354 - - 1s 0 0 225294.354 0 2 - 225294.354 - - 1s 0 0 225294.354 0 2 - 225294.354 - - 1s 0 0 225294.354 0 2 - 225294.354 - - 1s 0 0 225294.354 0 2 - 225294.354 - - 1s 0 0 225294.354 0 2 - 225294.354 - - 1s H 0 0 229107.94927 225294.354 1.66% - 1s 0 2 225315.247 0 2 229107.949 225315.247 1.66% - 2s H 27 18 226533.79702 225669.686 0.38% 76.3 3s 166 83 226144.763 114 1 226533.797 225681.679 0.38% 20.1 5s H 189 74 226309.18177 225681.679 0.28% 18.2 5s H 297 85 226274.25160 225681.679 0.26% 13.2 6s 606 182 226143.566 112 2 226274.252 225773.032 0.22% 9.5 10s 835 208 226131.356 161 1 226274.252 225845.535 0.19% 18.7 15s * 1060 121 385 226262.69029 225845.535 0.18% 15.7 17s * 1408 3 27 225915.15199 225915.152 0.0% 14.3 19s Cutting planes: Gomory: 1 Flow cover: 12 Explored 1409 nodes (24907 simplex iterations) in 19.90 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%