Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:39 2012 Optimize a model with 91 rows, 245 columns and 245 nonzeros Model has 180 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 1.05s Presolved: 91 rows, 243 columns, 243 nonzeros Variable types: 180 continuous, 63 integer (62 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 48.0000000 - - - 1s 0 0 0.00000 0 4 48.00000 0.00000 100% - 1s 0 0 0.00000 0 39 48.00000 0.00000 100% - 1s 0 0 0.00000 0 33 48.00000 0.00000 100% - 1s 0 2 0.00000 0 33 48.00000 0.00000 100% - 1s * 35 35 23 18.0000000 3.33333 81.5% 25.3 1s * 39 35 26 17.0000000 3.33333 80.4% 23.3 1s H 54 41 15.0000000 3.86667 74.2% 20.0 1s * 77 35 15 12.0000000 4.00000 66.7% 18.3 1s * 153 48 12 11.0000000 4.83871 56.0% 15.8 1s * 278 32 9 10.0000000 7.16667 28.3% 15.5 1s Cutting planes: Explored 341 nodes (5895 simplex iterations) in 1.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%