Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:29:25 2012 Optimize a model with 263 rows, 753 columns and 753 nonzeros Model has 524 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 3.06s Presolved: 263 rows, 734 columns, 734 nonzeros Variable types: 524 continuous, 210 integer (209 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 0 131.0000000 - - - 3s 0 0 0.00000 0 80 131.00000 0.00000 100% - 3s 0 0 0.00000 0 118 131.00000 0.00000 100% - 3s 0 0 0.00000 0 118 131.00000 0.00000 100% - 3s 0 2 0.00000 0 118 131.00000 0.00000 100% - 3s H 39 39 28.0000000 3.34783 88.0% 35.9 3s H 175 114 25.0000000 4.09826 83.6% 21.1 3s * 180 113 42 24.0000000 4.09826 82.9% 22.3 3s H 233 148 23.0000000 4.53333 80.3% 22.3 3s H 285 163 22.0000000 4.77598 78.3% 23.0 3s * 352 168 46 21.0000000 4.90667 76.6% 22.3 3s * 386 121 11 20.0000000 5.12667 74.4% 22.3 3s 607 223 7.78534 12 716 20.00000 7.78534 61.1% 24.8 5s * 695 240 35 18.0000000 7.78534 56.7% 31.6 5s H 832 259 17.0000000 7.78534 54.2% 38.3 6s 2528 181 15.64706 33 411 17.00000 12.53846 26.2% 34.5 10s Explored 3375 nodes (113938 simplex iterations) in 14.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%