Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:49:56 2012 Optimize a model with 301 rows, 832 columns and 832 nonzeros Model has 600 quadratic constraints Presolve removed 0 rows and 14 columns Presolve time: 3.50s Presolved: 301 rows, 818 columns, 818 nonzeros Variable types: 600 continuous, 218 integer (217 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 162.0000000 - - - 3s 0 0 0.00000 0 60 162.00000 0.00000 100% - 3s 0 0 0.00000 0 92 162.00000 0.00000 100% - 3s 0 0 0.00000 0 191 162.00000 0.00000 100% - 3s 0 2 0.00000 0 188 162.00000 0.00000 100% - 3s H 54 53 29.0000000 2.27935 92.1% 40.0 3s * 107 66 63 28.0000000 2.27935 91.9% 31.3 3s * 137 55 21 26.0000000 2.29524 91.2% 30.2 3s 606 237 10.82048 10 502 26.00000 10.82048 58.4% 35.7 5s * 641 247 27 24.0000000 10.82048 54.9% 39.2 5s 1502 404 22.50000 33 467 24.00000 11.00000 54.2% 44.3 10s 2822 675 19.38202 29 463 24.00000 14.45884 39.8% 39.1 15s 3587 793 20.90476 32 511 24.00000 15.63636 34.8% 38.2 20s 4742 853 23.00000 36 445 24.00000 17.00000 29.2% 37.3 25s 5799 811 21.38854 32 438 24.00000 17.98571 25.1% 36.8 30s 7005 677 22.00000 35 436 24.00000 19.00000 20.8% 36.3 35s 8249 416 cutoff 31 24.00000 20.00000 16.7% 35.6 40s Explored 9347 nodes (331633 simplex iterations) in 44.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%