Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:48:13 2012 Optimize a model with 5459 rows, 148 columns and 10918 nonzeros Presolve removed 3918 rows and 0 columns Presolve time: 0.22s Presolved: 1541 rows, 148 columns, 11136 nonzeros Variable types: 0 continuous, 148 integer (148 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.865019e+01, 679 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.65019 0 144 7.00000 18.65019 166% - 0s H 0 0 8.0000000 18.65019 133% - 0s 0 0 18.04277 0 148 8.00000 18.04277 126% - 0s H 0 0 9.0000000 18.04277 100% - 0s 0 0 17.96708 0 148 9.00000 17.96708 100% - 0s 0 0 17.91932 0 147 9.00000 17.91932 99.1% - 0s 0 0 17.85115 0 148 9.00000 17.85115 98.3% - 1s 0 0 17.82201 0 147 9.00000 17.82201 98.0% - 1s 0 0 17.80755 0 147 9.00000 17.80755 97.9% - 1s 0 0 17.80098 0 147 9.00000 17.80098 97.8% - 1s 0 0 17.79334 0 148 9.00000 17.79334 97.7% - 2s 0 0 17.79066 0 148 9.00000 17.79066 97.7% - 2s 0 0 17.78592 0 148 9.00000 17.78592 97.6% - 2s 0 0 17.77853 0 148 9.00000 17.77853 97.5% - 2s 0 0 17.77381 0 148 9.00000 17.77381 97.5% - 2s 0 0 17.77209 0 148 9.00000 17.77209 97.5% - 3s 0 0 17.77183 0 148 9.00000 17.77183 97.5% - 3s H 0 0 10.0000000 17.77183 77.7% - 3s 0 2 17.77174 0 148 10.00000 17.77174 77.7% - 3s 110 96 11.89424 12 65 10.00000 17.55163 75.5% 92.7 5s 629 259 11.40000 7 28 10.00000 14.27155 42.7% 76.7 10s Cutting planes: Clique: 186 Explored 1166 nodes (81911 simplex iterations) in 14.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%