Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:49:41 2012 Optimize a model with 150 rows, 380 columns and 380 nonzeros Model has 298 quadratic constraints Presolve time: 1.74s Presolved: 150 rows, 380 columns, 380 nonzeros Variable types: 298 continuous, 82 integer (82 binary) Root relaxation: objective 0.000000e+00, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 1s 0 0 0.00000 0 56 83.00000 0.00000 100% - 1s 0 0 0.23397 0 78 83.00000 0.23397 100% - 1s 0 2 0.25000 0 78 83.00000 0.25000 100% - 1s H 42 42 32.0000000 2.50000 92.2% 29.3 1s * 42 42 27 30.0000000 2.50000 91.7% 29.9 1s * 46 40 26 29.0000000 2.50000 91.4% 28.1 1s H 108 84 28.0000000 4.02143 85.6% 28.7 1s * 112 82 25 27.0000000 4.02143 85.1% 28.3 1s H 213 120 23.0000000 6.05147 73.7% 32.2 2s * 414 152 11 22.0000000 9.78334 55.5% 28.7 2s 1716 333 15.79256 34 241 22.00000 12.99497 40.9% 25.7 5s Explored 5308 nodes (111188 simplex iterations) in 8.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%