Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:08 2012 Optimize a model with 179 rows, 132 columns and 577 nonzeros Presolve time: 0.00s Presolved: 179 rows, 132 columns, 577 nonzeros Variable types: 0 continuous, 132 integer (132 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 68 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 42 33.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s 0 0 0.52632 0 43 28.00000 0.52632 98.1% - 0s 0 0 1.00000 0 44 28.00000 1.00000 96.4% - 0s 0 0 1.15336 0 45 28.00000 1.15336 95.9% - 0s H 0 0 25.0000000 1.15336 95.4% - 0s 0 0 1.19311 0 46 25.00000 1.19311 95.2% - 0s 0 0 1.20060 0 47 25.00000 1.20060 95.2% - 0s 0 2 1.21656 0 47 25.00000 1.21656 95.1% - 0s * 22 22 17 23.0000000 3.78268 83.6% 23.0 0s * 25 16 15 22.0000000 3.78268 82.8% 20.4 0s * 35 21 8 19.0000000 3.82456 79.9% 25.5 0s * 60 26 7 18.0000000 6.71972 62.7% 25.5 0s * 64 22 7 17.0000000 6.71972 60.5% 25.3 0s Cutting planes: Gomory: 4 Mod-K: 2 Explored 150 nodes (3581 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%