Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:03 2012 Optimize a model with 151 rows, 370 columns and 370 nonzeros Model has 300 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.75s Presolved: 151 rows, 369 columns, 369 nonzeros Variable types: 300 continuous, 69 integer (68 binary) Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 94.0000000 - - - 1s 0 0 0.00000 0 33 94.00000 0.00000 100% - 1s 0 0 0.00000 0 57 94.00000 0.00000 100% - 1s 0 0 0.00000 0 57 94.00000 0.00000 100% - 1s 0 2 0.00000 0 57 94.00000 0.00000 100% - 1s H 44 42 35.0000000 5.44444 84.4% 31.8 1s * 44 41 27 34.0000000 5.44444 84.0% 31.9 1s * 76 62 20 33.0000000 6.81818 79.3% 28.3 1s * 132 92 16 31.0000000 7.21875 76.7% 30.0 1s * 220 142 16 30.0000000 10.00000 66.7% 30.6 2s * 338 174 13 29.0000000 12.87214 55.6% 29.9 2s * 395 165 16 28.0000000 13.76578 50.8% 29.0 2s * 618 164 15 27.0000000 16.20000 40.0% 30.0 2s Cutting planes: Gomory: 2 Explored 1723 nodes (50677 simplex iterations) in 3.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%