Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:35:30 2012 Optimize a model with 232 rows, 680 columns and 680 nonzeros Model has 462 quadratic constraints Presolve removed 0 rows and 16 columns Presolve time: 2.70s Presolved: 232 rows, 664 columns, 664 nonzeros Variable types: 462 continuous, 202 integer (201 binary) Root relaxation: objective 0.000000e+00, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 120.0000000 - - - 2s 0 0 0.00000 0 23 120.00000 0.00000 100% - 2s 0 0 0.00000 0 68 120.00000 0.00000 100% - 2s 0 0 0.00000 0 123 120.00000 0.00000 100% - 2s 0 2 0.00000 0 122 120.00000 0.00000 100% - 2s H 54 54 22.0000000 1.67442 92.4% 29.8 2s * 65 63 44 18.0000000 1.67442 90.7% 29.8 2s * 138 110 49 16.0000000 1.69565 89.4% 24.1 2s * 214 147 21 15.0000000 2.24088 85.1% 23.2 3s H 270 128 14.0000000 2.60000 81.4% 22.6 3s * 308 120 45 13.0000000 2.60000 80.0% 24.4 3s 607 229 5.61146 10 642 13.00000 5.61146 56.8% 25.1 5s * 794 247 39 12.0000000 6.00000 50.0% 32.7 5s * 910 187 41 11.0000000 6.97101 36.6% 33.1 6s Explored 970 nodes (33850 simplex iterations) in 6.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%