Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:30:15 2012 Optimize a model with 164 rows, 386 columns and 386 nonzeros Model has 326 quadratic constraints Presolve time: 1.90s Presolved: 164 rows, 386 columns, 386 nonzeros Variable types: 326 continuous, 60 integer (60 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 88.0000000 - - - 1s 0 0 0.00000 0 3 88.00000 0.00000 100% - 1s 0 0 0.00000 0 58 88.00000 0.00000 100% - 1s 0 0 0.00000 0 53 88.00000 0.00000 100% - 1s 0 2 0.00000 0 53 88.00000 0.00000 100% - 1s H 49 49 48.0000000 3.10000 93.5% 45.6 2s * 52 52 28 46.0000000 3.10000 93.3% 43.6 2s H 94 84 44.0000000 4.50000 89.8% 40.1 2s * 97 84 27 43.0000000 4.50000 89.5% 39.0 2s * 133 109 22 42.0000000 4.73684 88.7% 41.0 2s H 193 150 41.0000000 5.00000 87.8% 41.5 2s * 193 143 18 40.0000000 5.00000 87.5% 41.5 2s * 1201 494 44 39.0000000 16.00000 59.0% 40.1 4s 1965 575 31.08061 32 246 39.00000 22.71429 41.8% 32.6 5s 5113 1266 37.36434 33 219 39.00000 27.80556 28.7% 23.6 10s 8854 1375 cutoff 35 39.00000 31.00000 20.5% 21.0 15s 13607 686 37.57143 39 155 39.00000 34.28889 12.1% 19.6 20s Explored 14984 nodes (288961 simplex iterations) in 21.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%