Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:51 2012 Optimize a model with 209 rows, 610 columns and 610 nonzeros Model has 416 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 2.43s Presolved: 209 rows, 584 columns, 584 nonzeros Variable types: 416 continuous, 168 integer (167 binary) Root relaxation: objective 0.000000e+00, 73 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 101.0000000 - - - 2s 0 0 0.00000 0 2 101.00000 0.00000 100% - 2s 0 0 0.00000 0 3 101.00000 0.00000 100% - 2s 0 0 0.00000 0 31 101.00000 0.00000 100% - 2s 0 2 0.00000 0 27 101.00000 0.00000 100% - 2s H 27 27 18.0000000 1.26168 93.0% 59.1 2s H 32 31 16.0000000 1.26168 92.1% 51.0 2s * 92 39 24 12.0000000 1.32886 88.9% 28.1 2s 1482 76 11.81818 52 51 12.00000 11.20690 6.61% 24.1 5s Explored 1660 nodes (38248 simplex iterations) in 5.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%