Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:11:41 2012 Optimize a model with 260 rows, 744 columns and 744 nonzeros Model has 518 quadratic constraints Presolve removed 0 rows and 22 columns Presolve time: 3.02s Presolved: 260 rows, 722 columns, 722 nonzeros Variable types: 518 continuous, 204 integer (203 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 139.0000000 - - - 3s 0 0 0.00000 0 5 139.00000 0.00000 100% - 3s 0 0 0.00000 0 3 139.00000 0.00000 100% - 3s 0 0 0.00000 0 130 139.00000 0.00000 100% - 3s 0 2 0.00000 0 130 139.00000 0.00000 100% - 3s H 54 54 26.0000000 2.57895 90.1% 34.4 3s H 81 79 25.0000000 2.57895 89.7% 30.6 3s H 125 97 24.0000000 3.18462 86.7% 25.5 3s * 127 65 28 22.0000000 3.18462 85.5% 26.2 3s * 228 119 23 21.0000000 3.66667 82.5% 26.1 3s H 270 136 20.0000000 4.60000 77.0% 27.2 3s * 274 116 27 19.0000000 4.60000 75.8% 27.3 3s * 386 141 28 18.0000000 7.86667 56.3% 25.5 3s 607 220 9.35829 14 701 18.00000 9.35829 48.0% 27.0 5s * 1322 170 42 17.0000000 11.61972 31.6% 34.2 6s Explored 1702 nodes (58920 simplex iterations) in 7.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%