Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:54:04 2012 Optimize a model with 167 rows, 385 columns and 385 nonzeros Model has 332 quadratic constraints Presolve time: 1.94s Presolved: 167 rows, 385 columns, 385 nonzeros Variable types: 332 continuous, 53 integer (53 binary) Root relaxation: objective 0.000000e+00, 26 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 76.0000000 - - - 1s 0 0 0.00000 0 28 76.00000 0.00000 100% - 1s 0 0 0.07008 0 53 76.00000 0.07008 100% - 1s 0 2 0.08929 0 53 76.00000 0.08929 100% - 1s H 51 51 53.0000000 2.72727 94.9% 30.1 2s * 60 55 31 52.0000000 2.72727 94.8% 27.2 2s H 132 103 47.0000000 7.07692 84.9% 29.9 2s * 133 101 17 46.0000000 7.07692 84.6% 30.0 2s H 575 319 44.0000000 14.55000 66.9% 33.9 2s 1818 704 31.42857 34 221 44.00000 20.20000 54.1% 32.7 5s 7423 2728 38.35135 41 212 44.00000 29.68421 32.5% 20.7 10s * 7643 2536 46 42.0000000 29.82609 29.0% 20.5 10s 10021 2866 35.20513 41 198 42.00000 31.50000 25.0% 19.7 15s 10620 2945 cutoff 40 42.00000 31.79310 24.3% 19.4 20s 14868 2893 38.25000 35 217 42.00000 34.18421 18.6% 18.8 25s *16584 2399 49 41.0000000 35.07692 14.4% 18.6 26s 19494 908 39.04407 46 228 41.00000 37.88235 7.60% 18.6 30s Explored 20592 nodes (376684 simplex iterations) in 30.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%