Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:57 2012 Optimize a model with 184 rows, 548 columns and 548 nonzeros Model has 366 quadratic constraints Presolve removed 0 rows and 27 columns Presolve time: 2.13s Presolved: 184 rows, 521 columns, 521 nonzeros Variable types: 366 continuous, 155 integer (154 binary) Root relaxation: objective 0.000000e+00, 65 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 95.0000000 - - - 2s 0 0 0.00000 0 5 95.00000 0.00000 100% - 2s 0 0 0.00000 0 75 95.00000 0.00000 100% - 2s 0 0 0.00000 0 74 95.00000 0.00000 100% - 2s 0 2 0.00000 0 74 95.00000 0.00000 100% - 2s H 46 46 17.0000000 0.97647 94.3% 27.4 2s * 46 46 35 16.0000000 0.97647 93.9% 27.4 2s H 54 46 14.0000000 0.97647 93.0% 25.4 2s H 81 32 12.0000000 1.90909 84.1% 23.4 2s * 82 27 12 11.0000000 1.90909 82.6% 23.7 2s * 85 24 12 10.0000000 1.90909 80.9% 23.8 2s * 129 25 10 9.0000000 2.24138 75.1% 22.1 2s Cutting planes: Explored 379 nodes (7654 simplex iterations) in 2.45 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%