Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:17 2013 Optimize a model with 2032 rows, 4046 columns and 14090 nonzeros Presolve removed 23 rows and 162 columns Presolve time: 0.17s Presolved: 2009 rows, 3884 columns, 11630 nonzeros Variable types: 2022 continuous, 1862 integer (1862 binary) Root relaxation: objective 5.738318e+03, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5738.31804 0 2 - 5738.31804 - - 0s 0 0 5738.66508 0 3 - 5738.66508 - - 0s 0 0 5742.29357 0 3 - 5742.29357 - - 0s 0 0 5743.35326 0 3 - 5743.35326 - - 0s 0 0 5743.85153 0 3 - 5743.85153 - - 0s 0 0 5744.16362 0 3 - 5744.16362 - - 0s 0 0 5744.41181 0 3 - 5744.41181 - - 0s 0 0 5744.56869 0 3 - 5744.56869 - - 0s 0 0 5744.64478 0 3 - 5744.64478 - - 0s 0 0 5744.68227 0 3 - 5744.68227 - - 0s 0 2 5744.68227 0 3 - 5744.68227 - - 1s * 19 3 10 5753.9380267 5753.93791 0.00% 283 1s Cutting planes: Gomory: 1 Cover: 7 Flow cover: 1 Explored 20 nodes (5508 simplex iterations) in 1.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.753938026653e+03, best bound 5.753937911007e+03, gap 0.0000%