Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:26 2012 Optimize a model with 1 rows, 146 columns and 146 nonzeros Model has 117 quadratic objective terms Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 118 rows, 233 columns, 467 nonzeros Variable types: 0 continuous, 233 integer (232 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 146 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 31 32.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 27.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 21.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 12.00000 0.00000 100% - 0s 0 0 0.00000 0 10 12.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.00000 0 10 10.00000 0.00000 100% - 0s 0 0 0.00000 0 10 10.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 9 5.00000 0.00000 100% - 0s H 135 28 4.0000000 0.00000 100% 2.0 0s * 367 61 24 3.0000000 0.00000 100% 4.2 0s * 380 33 11 2.0000000 0.00000 100% 5.1 0s Cutting planes: Cover: 178 MIR: 2 Explored 442 nodes (4592 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%