Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:05:52 2012 Optimize a model with 215 rows, 630 columns and 630 nonzeros Model has 428 quadratic constraints Presolve removed 0 rows and 22 columns Presolve time: 2.49s Presolved: 215 rows, 608 columns, 608 nonzeros Variable types: 428 continuous, 180 integer (179 binary) Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 98.0000000 - - - 2s 0 0 0.00000 0 2 98.00000 0.00000 100% - 2s 0 0 0.00000 0 12 98.00000 0.00000 100% - 2s 0 0 0.00000 0 73 98.00000 0.00000 100% - 2s 0 2 0.00000 0 69 98.00000 0.00000 100% - 2s * 17 17 15 16.0000000 2.00000 87.5% 57.8 2s * 21 17 15 15.0000000 2.00000 86.7% 60.1 2s H 241 49 12.0000000 4.78947 60.1% 18.7 2s * 775 123 24 11.0000000 9.18750 16.5% 25.4 4s Explored 1123 nodes (33244 simplex iterations) in 4.92 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%