Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:14:01 2012 Optimize a model with 529 rows, 491 columns and 1811 nonzeros Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 529 rows, 470 columns, 1790 nonzeros Variable types: 0 continuous, 470 integer (469 binary) Found heuristic solution: objective 111.0000000 Root relaxation: objective 0.000000e+00, 289 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 0 205 111.00000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s 0 0 0.30984 0 209 72.00000 0.30984 100% - 0s H 0 0 59.0000000 0.30984 99.5% - 0s 0 0 0.81808 0 213 59.00000 0.81808 98.6% - 0s H 0 0 44.0000000 0.81808 98.1% - 0s 0 0 0.81808 0 213 44.00000 0.81808 98.1% - 0s H 0 0 43.0000000 0.81808 98.1% - 0s 0 2 0.82183 0 213 43.00000 0.82183 98.1% - 0s * 45 41 25 20.0000000 1.46032 92.7% 35.8 0s * 193 114 16 18.0000000 3.00000 83.3% 43.0 0s * 1790 92 23 17.0000000 12.30769 27.6% 34.4 2s Explored 2013 nodes (68661 simplex iterations) in 3.10 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%