Optimize a model with 100 rows, 4950 columns and 9900 nonzeros Presolve time: 0.01s Presolved: 100 rows, 4950 columns, 9900 nonzeros Variable types: 0 continuous, 4950 integer (4950 binary) Root relaxation: objective 2.062200e+04, 144 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 20622.0000 0 12 - 20622.0000 - - 0s 0 0 20661.0000 0 6 - 20661.0000 - - 0s 0 0 20670.1667 0 16 - 20670.1667 - - 0s 0 0 20693.5000 0 8 - 20693.5000 - - 0s 0 0 20741.3333 0 28 - 20741.3333 - - 0s 0 0 20748.3333 0 26 - 20748.3333 - - 0s 0 0 21519.0000 0 12 - 21519.0000 - - 0s 0 0 21537.0000 0 8 - 21537.0000 - - 0s 0 0 21549.0000 0 6 - 21549.0000 - - 0s 0 0 21675.5000 0 8 - 21675.5000 - - 0s 0 0 21677.0000 0 14 - 21677.0000 - - 0s 0 2 21683.0000 0 10 - 21683.0000 - - 0s * 61 59 50 22530.000000 21791.0000 3.28% 5.5 0s * 164 126 40 22524.000000 21863.0000 2.93% 4.9 1s * 262 119 12 22276.000000 21867.5000 1.83% 5.3 2s * 363 165 10 22275.000000 21878.0000 1.78% 5.3 2s * 468 165 24 22216.000000 21924.0000 1.31% 5.3 3s H 613 222 22174.000000 21997.5787 0.80% 5.8 4s 615 225 22140.5000 22 14 22174.0000 21999.0796 0.79% 5.8 5s H 706 209 22068.000000 22028.0780 0.18% 7.3 6s Cutting planes: User: 11 Gomory: 16 Cover: 2 Zero half: 35 Explored 755 nodes (5799 simplex iterations) in 6.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.206800000000e+04, best bound 2.206800000000e+04, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:43:31 2012