Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:31 2012 Optimize a model with 177 rows, 539 columns and 539 nonzeros Model has 352 quadratic constraints Presolve removed 0 rows and 22 columns Presolve time: 2.05s Presolved: 177 rows, 517 columns, 517 nonzeros Variable types: 352 continuous, 165 integer (164 binary) Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 82.0000000 - - - 2s 0 0 0.00000 0 2 82.00000 0.00000 100% - 2s 0 0 0.00000 0 4 82.00000 0.00000 100% - 2s 0 0 0.00000 0 49 82.00000 0.00000 100% - 2s 0 2 0.00000 0 99 82.00000 0.00000 100% - 2s H 16 16 13.0000000 1.18000 90.9% 70.7 2s H 45 45 10.0000000 1.18000 88.2% 32.4 2s * 48 40 32 9.0000000 1.18000 86.9% 32.1 2s * 103 17 7 6.0000000 2.63636 56.1% 24.0 2s Cutting planes: Explored 290 nodes (8240 simplex iterations) in 2.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%