Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:45 2012 Optimize a model with 76 rows, 206 columns and 206 nonzeros Model has 150 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.88s Presolved: 76 rows, 202 columns, 202 nonzeros Variable types: 150 continuous, 52 integer (51 binary) Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 32.0000000 - - - 0s 0 0 0.00000 0 3 32.00000 0.00000 100% - 0s 0 0 0.00000 0 2 32.00000 0.00000 100% - 0s 0 0 0.00000 0 35 32.00000 0.00000 100% - 0s 0 2 0.00000 0 34 32.00000 0.00000 100% - 0s * 19 17 15 11.0000000 2.30000 79.1% 24.5 0s * 39 21 14 10.0000000 2.37931 76.2% 18.1 0s * 181 32 10 9.0000000 6.65000 26.1% 11.8 0s Cutting planes: Explored 246 nodes (3207 simplex iterations) in 0.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%