Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:31:30 2012 Optimize a model with 295 rows, 830 columns and 830 nonzeros Model has 588 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.43s Presolved: 295 rows, 813 columns, 813 nonzeros Variable types: 588 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 0 156.0000000 - - - 3s 0 0 0.00000 0 10 156.00000 0.00000 100% - 3s 0 0 0.00000 0 176 156.00000 0.00000 100% - 3s 0 0 0.00000 0 148 156.00000 0.00000 100% - 3s 0 2 0.00000 0 148 156.00000 0.00000 100% - 3s H 49 49 32.0000000 2.08861 93.5% 36.3 3s * 54 54 36 29.0000000 2.08861 92.8% 35.2 3s H 164 139 28.0000000 2.77778 90.1% 25.8 3s * 165 128 40 26.0000000 2.77778 89.3% 25.8 3s H 193 103 23.0000000 2.93297 87.2% 28.6 3s 615 286 10.79310 14 478 23.00000 7.21939 68.6% 34.8 5s * 1289 330 81 22.0000000 11.00000 50.0% 39.6 7s 2333 355 17.00000 26 452 22.00000 15.00000 31.8% 37.6 10s H 2649 306 21.0000000 15.78689 24.8% 37.5 10s Explored 3365 nodes (130507 simplex iterations) in 13.48 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%