Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:07 2012 Optimize a model with 327 rows, 327 columns and 1142 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 327 rows, 302 columns, 1117 nonzeros Variable types: 0 continuous, 302 integer (301 binary) Found heuristic solution: objective 58.0000000 Root relaxation: objective 0.000000e+00, 196 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 0 132 58.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.35548 0 133 38.00000 0.35548 99.1% - 0s H 0 0 32.0000000 0.35548 98.9% - 0s 0 0 1.00000 0 137 32.00000 1.00000 96.9% - 0s H 0 0 26.0000000 1.00000 96.2% - 0s H 0 0 24.0000000 1.00000 95.8% - 0s 0 0 1.00000 0 135 24.00000 1.00000 95.8% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s 0 0 1.00000 0 136 19.00000 1.00000 94.7% - 0s 0 0 1.00000 0 135 19.00000 1.00000 94.7% - 0s H 0 0 15.0000000 1.00000 93.3% - 0s 0 2 1.00000 0 135 15.00000 1.00000 93.3% - 0s * 32 25 20 10.0000000 1.00000 90.0% 25.4 0s * 146 72 21 9.0000000 2.62691 70.8% 19.5 0s Explored 841 nodes (15845 simplex iterations) in 0.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%