Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:56:17 2012 Optimize a model with 198 rows, 584 columns and 584 nonzeros Model has 394 quadratic constraints Presolve removed 0 rows and 37 columns Presolve time: 2.30s Presolved: 198 rows, 547 columns, 547 nonzeros Variable types: 394 continuous, 153 integer (152 binary) Root relaxation: objective 0.000000e+00, 71 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 98.0000000 - - - 2s 0 0 0.00000 0 28 98.00000 0.00000 100% - 2s 0 0 0.00000 0 114 98.00000 0.00000 100% - 2s 0 0 0.00000 0 103 98.00000 0.00000 100% - 2s 0 2 0.00000 0 103 98.00000 0.00000 100% - 2s * 30 30 21 17.0000000 2.01046 88.2% 40.5 2s * 45 37 33 16.0000000 2.01046 87.4% 31.0 2s * 438 158 14 15.0000000 5.95652 60.3% 17.8 2s * 564 162 19 14.0000000 6.72973 51.9% 17.2 2s 1715 259 cutoff 36 14.00000 9.10092 35.0% 20.1 5s * 3151 3 38 13.0000000 12.78571 1.65% 17.9 6s Explored 3152 nodes (57968 simplex iterations) in 6.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%