Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:15:48 2012 Optimize a model with 515 rows, 468 columns and 1753 nonzeros Presolve removed 0 rows and 12 columns Presolve time: 0.00s Presolved: 515 rows, 456 columns, 1741 nonzeros Variable types: 0 continuous, 456 integer (455 binary) Found heuristic solution: objective 113.0000000 Root relaxation: objective 0.000000e+00, 252 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 0 195 113.00000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s 0 0 0.31566 0 197 60.00000 0.31566 99.5% - 0s H 0 0 56.0000000 0.31566 99.4% - 0s 0 0 0.91977 0 199 56.00000 0.91977 98.4% - 0s H 0 0 51.0000000 0.91977 98.2% - 0s H 0 0 50.0000000 0.91977 98.2% - 0s H 0 0 47.0000000 0.91977 98.0% - 0s 0 2 0.92394 0 199 47.00000 0.92394 98.0% - 0s H 27 27 43.0000000 1.00000 97.7% 35.2 0s H 54 54 25.0000000 1.00000 96.0% 26.1 0s H 63 57 22.0000000 1.00000 95.5% 24.4 0s * 149 97 36 21.0000000 1.03127 95.1% 27.1 0s H 187 110 18.0000000 2.40625 86.6% 31.6 0s * 647 233 32 17.0000000 6.89362 59.4% 35.6 1s Explored 3494 nodes (98058 simplex iterations) in 4.89 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%