Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:16:20 2012 Optimize a model with 290 rows, 805 columns and 805 nonzeros Model has 578 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 3.37s Presolved: 290 rows, 786 columns, 786 nonzeros Variable types: 578 continuous, 208 integer (207 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 0 140.0000000 - - - 3s 0 0 0.00000 0 3 140.00000 0.00000 100% - 3s 0 0 0.00000 0 3 140.00000 0.00000 100% - 3s 0 0 0.00000 0 3 140.00000 0.00000 100% - 3s 0 2 0.00000 0 2 140.00000 0.00000 100% - 3s H 53 53 30.0000000 0.31056 99.0% 37.5 3s * 53 50 42 29.0000000 0.31056 98.9% 37.8 3s 605 400 24.27273 14 487 29.00000 4.52632 84.4% 27.2 5s * 833 478 60 28.0000000 4.52632 83.8% 41.2 6s * 1488 576 46 25.0000000 10.18519 59.3% 37.5 8s 2100 684 18.22105 34 474 25.00000 12.21429 51.1% 35.1 10s H 2954 894 24.0000000 13.37662 44.3% 34.8 14s 2987 901 16.36723 30 454 24.00000 13.41176 44.1% 34.7 15s 4166 1153 17.08556 31 476 24.00000 14.70312 38.7% 34.4 20s 5234 1312 22.95324 34 492 24.00000 15.47761 35.5% 34.5 25s 6340 1415 22.94693 35 254 24.00000 16.07143 33.0% 34.8 30s 7394 1494 cutoff 40 24.00000 16.77273 30.1% 33.9 35s 8711 1553 23.00000 34 463 24.00000 17.27692 28.0% 34.1 40s 9926 1568 cutoff 36 24.00000 17.79545 25.9% 33.4 45s 11875 1489 22.00000 34 417 24.00000 18.50000 22.9% 33.2 50s 13783 1351 23.00000 37 407 24.00000 19.00000 20.8% 33.0 55s 15357 1182 20.63584 36 448 24.00000 19.45455 18.9% 32.4 60s 17153 846 23.00000 37 411 24.00000 20.00575 16.6% 32.8 65s Explored 19392 nodes (620671 simplex iterations) in 69.28 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%