Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:46:51 2013 Optimize a model with 1000 rows, 25550 columns and 51900 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.10s Presolved: 950 rows, 25500 columns, 51600 nonzeros Variable types: 25350 continuous, 150 integer (150 binary) Root relaxation: objective 1.650739e+05, 2096 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 4 - 165073.856 - - 0s H 0 0 179473.27269 165073.856 8.02% - 0s H 0 0 168486.43946 165073.856 2.03% - 0s 0 0 165203.867 0 6 168486.439 165203.867 1.95% - 0s 0 0 165242.427 0 4 168486.439 165242.427 1.93% - 0s 0 0 165259.887 0 4 168486.439 165259.887 1.92% - 0s 0 0 165266.816 0 4 168486.439 165266.816 1.91% - 0s 0 0 165275.880 0 4 168486.439 165275.880 1.91% - 0s 0 0 165281.036 0 4 168486.439 165281.036 1.90% - 0s 0 0 165285.145 0 4 168486.439 165285.145 1.90% - 0s 0 0 165288.312 0 4 168486.439 165288.312 1.90% - 1s 0 0 165288.672 0 4 168486.439 165288.672 1.90% - 1s 0 0 165289.327 0 5 168486.439 165289.327 1.90% - 1s 0 0 165305.234 0 4 168486.439 165305.234 1.89% - 1s 0 0 165319.580 0 4 168486.439 165319.580 1.88% - 1s 0 0 165328.460 0 4 168486.439 165328.460 1.87% - 1s 0 0 165330.242 0 4 168486.439 165330.242 1.87% - 1s 0 0 165334.679 0 4 168486.439 165334.679 1.87% - 1s 0 0 165339.011 0 4 168486.439 165339.011 1.87% - 1s 0 0 165342.653 0 4 168486.439 165342.653 1.87% - 1s 0 0 165346.133 0 4 168486.439 165346.133 1.86% - 1s 0 0 165348.239 0 4 168486.439 165348.239 1.86% - 1s 0 0 165348.952 0 4 168486.439 165348.952 1.86% - 2s 0 0 165349.830 0 4 168486.439 165349.830 1.86% - 2s 0 0 165349.830 0 4 168486.439 165349.830 1.86% - 2s 0 2 165369.655 0 4 168486.439 165369.655 1.85% - 2s * 11 4 11 165615.57936 165593.657 0.01% 35.1 2s Cutting planes: Flow cover: 16 Explored 14 nodes (3131 simplex iterations) in 3.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656155793615e+05, best bound 1.656075126568e+05, gap 0.0049%