Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:36:55 2012 Optimize a model with 571 rows, 523 columns and 1948 nonzeros Presolve removed 0 rows and 16 columns Presolve time: 0.00s Presolved: 571 rows, 507 columns, 1932 nonzeros Variable types: 0 continuous, 507 integer (506 binary) Found heuristic solution: objective 110.0000000 Root relaxation: objective 0.000000e+00, 292 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 0 209 110.00000 0.00000 100% - 0s H 0 0 101.0000000 0.00000 100% - 0s H 0 0 86.0000000 0.00000 100% - 0s 0 0 0.39683 0 210 86.00000 0.39683 100% - 0s H 0 0 84.0000000 0.39683 100% - 0s 0 0 0.63138 0 214 84.00000 0.63138 99.2% - 0s H 0 0 77.0000000 0.63138 99.2% - 0s H 0 0 56.0000000 0.63138 98.9% - 0s 0 0 0.63138 0 214 56.00000 0.63138 98.9% - 0s 0 0 0.63138 0 214 56.00000 0.63138 98.9% - 0s H 0 0 43.0000000 0.63138 98.5% - 0s H 0 0 40.0000000 0.63138 98.4% - 0s 0 2 0.63183 0 214 40.00000 0.63183 98.4% - 0s H 27 27 37.0000000 1.00000 97.3% 40.9 0s H 54 54 36.0000000 1.00000 97.2% 31.3 0s * 58 58 34 24.0000000 1.00000 95.8% 31.0 0s H 90 58 19.0000000 1.00000 94.7% 33.1 0s * 139 79 17 17.0000000 1.00000 94.1% 37.8 0s 3169 80 15.10056 22 209 17.00000 14.69492 13.6% 22.6 5s Explored 3299 nodes (75062 simplex iterations) in 5.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%