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 * 105 102 85 23615.000000 21784.0000 7.75% 5.1 0s * 108 98 84 23604.000000 21784.0000 7.71% 5.1 0s * 151 91 33 22660.000000 21791.0000 3.83% 5.9 0s * 152 86 33 22659.000000 21791.0000 3.83% 5.8 0s * 404 294 53 22631.000000 21859.0000 3.41% 5.8 0s * 521 359 41 22517.000000 21875.0000 2.85% 5.7 1s * 525 347 42 22482.000000 21875.0000 2.70% 5.7 1s * 586 357 35 22455.000000 21882.0000 2.55% 5.5 1s H 712 426 22068.000000 22002.0348 0.30% 5.4 2s Cutting planes: Gomory: 8 Clique: 1 Zero half: 24 Explored 738 nodes (5132 simplex iterations) in 3.19 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 02:43:28 2012