Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:16:50 2012 Optimize a model with 233 rows, 675 columns and 675 nonzeros Model has 464 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 2.70s Presolved: 233 rows, 656 columns, 656 nonzeros Variable types: 464 continuous, 192 integer (191 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 0 108.0000000 - - - 2s 0 0 0.00000 0 126 108.00000 0.00000 100% - 2s 0 0 0.08588 0 175 108.00000 0.08588 100% - 2s 0 0 0.08592 0 175 108.00000 0.08592 100% - 2s 0 0 0.08592 0 175 108.00000 0.08592 100% - 2s 0 2 0.11861 0 175 108.00000 0.11861 100% - 2s H 27 27 19.0000000 2.29249 87.9% 30.1 2s H 108 81 18.0000000 2.30142 87.2% 23.2 2s * 110 78 24 17.0000000 2.30142 86.5% 24.3 2s * 132 79 15 15.0000000 2.70000 82.0% 24.7 2s * 298 107 11 14.0000000 6.71111 52.1% 26.4 3s 856 138 10.90909 22 365 14.00000 10.90909 22.1% 36.1 5s Explored 2742 nodes (130233 simplex iterations) in 9.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%