Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:05:54 2012 Optimize a model with 148 rows, 351 columns and 351 nonzeros Model has 294 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.70s Presolved: 148 rows, 350 columns, 350 nonzeros Variable types: 294 continuous, 56 integer (55 binary) Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 73.0000000 - - - 1s 0 0 0.00000 0 28 73.00000 0.00000 100% - 1s 0 0 0.00000 0 28 73.00000 0.00000 100% - 1s 0 0 0.00000 0 53 73.00000 0.00000 100% - 1s 0 2 0.00000 0 53 73.00000 0.00000 100% - 1s H 55 55 41.0000000 3.05263 92.6% 24.5 1s * 55 55 29 40.0000000 3.05263 92.4% 24.9 1s * 57 53 29 39.0000000 3.05263 92.2% 24.4 1s H 90 78 38.0000000 4.76471 87.5% 28.3 1s * 94 79 21 37.0000000 4.76471 87.1% 27.7 1s * 119 92 17 36.0000000 4.92308 86.3% 29.9 1s H 172 116 33.0000000 5.00000 84.8% 33.9 1s * 172 111 16 32.0000000 5.00000 84.4% 33.9 1s * 799 283 48 31.0000000 13.86667 55.3% 42.2 3s 2484 365 cutoff 39 31.00000 22.69231 26.8% 27.2 5s * 3632 245 40 30.0000000 25.61538 14.6% 24.0 7s Explored 4036 nodes (94361 simplex iterations) in 7.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%