Gurobi 5.0.1 (linux64) logging started Tue Jan 22 19:37:24 2013 Optimize a model with 140 rows, 204 columns and 320 nonzeros Model has 40 quadratic constraints Presolve removed 20 rows and 20 columns Presolve time: 0.24s Presolved: 240 rows, 304 columns, 520 nonzeros Variable types: 284 continuous, 20 integer (20 binary) Root relaxation: objective 0.000000e+00, 80 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 1690.2841204 - - - 0s 0 0 0.00000 0 2 1690.28412 0.00000 100% - 0s 0 2 0.00000 0 2 1690.28412 0.00000 100% - 0s * 34 34 20 1453.0331267 0.00000 100% 31.1 0s * 35 31 20 1418.2134402 0.00000 100% 30.2 0s H 54 41 1219.4431114 0.00000 100% 35.3 0s * 74 55 20 1197.3795628 0.00000 100% 31.6 0s * 75 51 20 1151.9716405 0.00000 100% 31.2 0s H 216 160 1131.1412378 74.02262 93.5% 38.5 0s H 352 226 1087.5175120 104.07689 90.4% 37.5 0s * 358 226 20 1087.5170392 104.07689 90.4% 37.6 0s H 696 360 1077.3421746 216.20013 79.9% 44.7 2s * 696 343 33 1077.3421340 216.20013 79.9% 44.7 2s 2717 456 1012.09662 22 11 1077.34213 634.72786 41.1% 51.1 5s Cutting planes: Explored 6124 nodes (286518 simplex iterations) in 9.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.077342148494e+03, best bound 1.077342148494e+03, gap 0.0%