Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:13 2012 Optimize a model with 118 rows, 300 columns and 300 nonzeros Model has 234 quadratic constraints Presolve time: 1.36s Presolved: 118 rows, 300 columns, 300 nonzeros Variable types: 234 continuous, 66 integer (66 binary) Root relaxation: objective 0.000000e+00, 33 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 59.0000000 - - - 1s 0 0 0.00000 0 2 59.00000 0.00000 100% - 1s 0 0 0.00000 0 58 59.00000 0.00000 100% - 1s 0 0 0.00000 0 49 59.00000 0.00000 100% - 1s 0 2 0.00000 0 49 59.00000 0.00000 100% - 1s * 34 33 20 21.0000000 5.87805 72.0% 26.7 1s * 63 47 20 20.0000000 5.90000 70.5% 23.2 1s * 304 115 12 19.0000000 8.02564 57.8% 21.0 1s * 410 107 14 18.0000000 9.34783 48.1% 20.4 1s Cutting planes: Explored 1041 nodes (20980 simplex iterations) in 1.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%