Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:45 2012 Optimize a model with 385 rows, 386 columns and 1346 nonzeros Presolve removed 0 rows and 19 columns Presolve time: 0.00s Presolved: 385 rows, 367 columns, 1327 nonzeros Variable types: 0 continuous, 367 integer (366 binary) Found heuristic solution: objective 70.0000000 Root relaxation: objective 0.000000e+00, 213 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 0 158 70.00000 0.00000 100% - 0s H 0 0 57.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s 0 0 0.29695 0 160 47.00000 0.29695 99.4% - 0s H 0 0 37.0000000 0.29695 99.2% - 0s H 0 0 32.0000000 0.29695 99.1% - 0s 0 0 0.77553 0 165 32.00000 0.77553 97.6% - 0s H 0 0 24.0000000 0.77553 96.8% - 0s 0 0 0.77553 0 167 24.00000 0.77553 96.8% - 0s 0 0 0.77553 0 163 24.00000 0.77553 96.8% - 0s H 0 0 23.0000000 0.77553 96.6% - 0s H 0 0 20.0000000 0.77553 96.1% - 0s H 0 0 17.0000000 0.77553 95.4% - 0s 0 2 0.79330 0 163 17.00000 0.79330 95.3% - 0s H 27 27 11.0000000 1.00000 90.9% 34.9 0s * 37 26 26 10.0000000 1.00000 90.0% 35.3 0s * 98 52 21 9.0000000 1.00000 88.9% 28.3 0s * 777 159 26 8.0000000 6.28571 21.4% 30.4 0s Explored 793 nodes (24590 simplex iterations) in 0.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%