Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:15:21 2012 Optimize a model with 271 rows, 775 columns and 775 nonzeros Model has 540 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 3.19s Presolved: 271 rows, 755 columns, 755 nonzeros Variable types: 540 continuous, 215 integer (214 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 0 134.0000000 - - - 3s 0 0 0.00000 0 3 134.00000 0.00000 100% - 3s 0 0 0.00000 0 2 134.00000 0.00000 100% - 3s 0 0 0.00000 0 102 134.00000 0.00000 100% - 3s 0 2 0.00000 0 102 134.00000 0.00000 100% - 3s H 54 54 35.0000000 2.63636 92.5% 34.0 3s * 55 55 44 26.0000000 2.63636 89.9% 34.5 3s * 93 77 30 25.0000000 2.72109 89.1% 29.9 3s * 96 63 29 24.0000000 2.72109 88.7% 29.8 3s H 135 90 23.0000000 3.12605 86.4% 26.6 3s H 155 105 22.0000000 3.12605 85.8% 25.6 3s H 547 286 21.0000000 7.17073 65.9% 22.3 3s 706 343 8.47222 11 461 21.00000 8.47222 59.7% 25.4 5s * 1634 430 43 20.0000000 10.58083 47.1% 29.7 7s H 1724 366 19.0000000 10.84337 42.9% 29.1 7s H 1972 315 18.0000000 11.61832 35.5% 29.3 8s 2722 282 16.90000 40 59 18.00000 13.46809 25.2% 30.0 10s * 3234 103 42 17.0000000 14.69231 13.6% 31.3 11s Explored 3369 nodes (107537 simplex iterations) in 11.47 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%