Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:36:31 2012 Optimize a model with 150 rows, 376 columns and 376 nonzeros Model has 298 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 1.74s Presolved: 150 rows, 373 columns, 373 nonzeros Variable types: 298 continuous, 75 integer (74 binary) Root relaxation: objective 0.000000e+00, 39 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 80.0000000 - - - 1s 0 0 0.00000 0 65 80.00000 0.00000 100% - 1s 0 0 0.34848 0 72 80.00000 0.34848 100% - 1s 0 0 0.34848 0 72 80.00000 0.34848 100% - 1s 0 2 0.34848 0 72 80.00000 0.34848 100% - 1s H 8 8 68.0000000 2.54555 96.3% 41.1 1s * 37 37 24 33.0000000 2.54555 92.3% 28.9 1s H 159 132 32.0000000 3.51111 89.0% 30.4 1s * 159 125 15 31.0000000 3.51111 88.7% 30.4 1s H 202 147 30.0000000 3.86272 87.1% 28.7 1s * 368 204 16 29.0000000 8.85147 69.5% 29.5 2s * 798 359 44 28.0000000 11.91667 57.4% 36.0 4s H 814 333 27.0000000 11.91667 55.9% 35.5 4s 1685 393 20.32836 38 218 27.00000 15.55632 42.4% 27.9 5s * 1889 399 34 26.0000000 16.00000 38.5% 26.9 5s Explored 4958 nodes (104111 simplex iterations) in 9.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%