Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:46:40 2012 Optimize a model with 148 rows, 346 columns and 346 nonzeros Model has 294 quadratic constraints Presolve time: 1.71s Presolved: 148 rows, 346 columns, 346 nonzeros Variable types: 294 continuous, 52 integer (52 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 23 76.00000 0.00000 100% - 1s 0 0 0.00000 0 35 76.00000 0.00000 100% - 1s 0 0 0.00000 0 35 76.00000 0.00000 100% - 1s 0 2 0.00000 0 35 76.00000 0.00000 100% - 1s * 33 33 23 44.0000000 6.70968 84.8% 36.2 1s H 53 42 41.0000000 6.75000 83.5% 33.5 1s * 53 42 16 40.0000000 6.75000 83.1% 33.5 1s H 337 153 39.0000000 16.86862 56.7% 29.1 2s * 1027 346 40 38.0000000 20.00000 47.4% 37.4 3s 2696 365 35.46154 34 200 38.00000 29.15789 23.3% 27.0 5s Explored 4005 nodes (96411 simplex iterations) in 7.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%