Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:59:34 2013 Optimize a model with 990 rows, 81090 columns and 162090 nonzeros Presolve time: 0.13s Presolved: 990 rows, 81090 columns, 162090 nonzeros Variable types: 81000 continuous, 90 integer (90 binary) Root relaxation: objective 1.070177e+05, 2557 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 107017.688 0 9 - 107017.688 - - 0s H 0 0 113613.00000 107017.688 5.81% - 0s 0 0 107912.415 0 8 113613.000 107912.415 5.02% - 0s H 0 0 112280.00000 107912.415 3.89% - 0s 0 0 107962.750 0 4 112280.000 107962.750 3.85% - 0s H 0 0 110484.63691 107962.750 2.28% - 0s H 0 0 109819.00000 107962.750 1.69% - 1s 0 0 107968.269 0 5 109819.000 107968.269 1.69% - 1s 0 0 107975.030 0 4 109819.000 107975.030 1.68% - 1s H 0 0 109725.00000 107975.030 1.59% - 1s 0 0 107975.525 0 4 109725.000 107975.525 1.59% - 1s 0 0 107975.845 0 4 109725.000 107975.845 1.59% - 1s 0 0 107976.860 0 3 109725.000 107976.860 1.59% - 1s 0 0 107976.934 0 4 109725.000 107976.934 1.59% - 1s H 0 0 108262.00000 107976.934 0.26% - 2s 0 0 107976.934 0 10 108262.000 107976.934 0.26% - 2s 0 0 108087.514 0 7 108262.000 108087.514 0.16% - 2s 0 0 108148.423 0 6 108262.000 108148.423 0.10% - 2s 0 0 108158.560 0 5 108262.000 108158.560 0.10% - 2s 0 0 108166.739 0 5 108262.000 108166.739 0.09% - 2s 0 0 108169.844 0 6 108262.000 108169.844 0.09% - 2s 0 0 108170.262 0 5 108262.000 108170.262 0.08% - 2s 0 0 108172.021 0 4 108262.000 108172.021 0.08% - 3s 0 2 108182.069 0 4 108262.000 108182.069 0.07% - 3s Cutting planes: Implied bound: 104 Flow cover: 3 Explored 14 nodes (6328 simplex iterations) in 3.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.082620000000e+05, best bound 1.082613855778e+05, gap 0.0006%