Gurobi 5.0.1 (linux64) logging started Sun Nov 18 10:04:44 2012 Optimize a model with 296 rows, 836 columns and 836 nonzeros Model has 590 quadratic constraints Presolve removed 0 rows and 21 columns Presolve time: 3.44s Presolved: 296 rows, 815 columns, 815 nonzeros Variable types: 590 continuous, 225 integer (224 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 0 154.0000000 - - - 3s 0 0 0.00000 0 2 154.00000 0.00000 100% - 3s 0 0 0.00000 0 4 154.00000 0.00000 100% - 3s 0 0 0.00000 0 99 154.00000 0.00000 100% - 3s 0 2 0.00000 0 99 154.00000 0.00000 100% - 3s H 54 54 32.0000000 2.82759 91.2% 35.4 3s * 55 55 46 31.0000000 2.82759 90.9% 34.9 3s * 64 57 52 29.0000000 2.82759 90.2% 36.2 3s H 203 162 27.0000000 3.48214 87.1% 25.9 3s 666 436 12.18090 17 738 27.00000 7.20818 73.3% 32.4 5s * 791 472 41 24.0000000 7.20818 70.0% 41.4 5s H 960 467 23.0000000 8.61765 62.5% 41.8 6s H 1014 438 22.0000000 8.82456 59.9% 41.3 6s H 2204 180 21.0000000 15.63235 25.6% 40.6 9s 2215 178 19.96273 33 428 21.00000 15.67857 25.3% 40.7 10s Explored 2638 nodes (108446 simplex iterations) in 11.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%