Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:14:02 2012 Optimize a model with 493 rows, 456 columns and 1686 nonzeros Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 493 rows, 435 columns, 1665 nonzeros Variable types: 0 continuous, 435 integer (434 binary) Found heuristic solution: objective 95.0000000 Root relaxation: objective 0.000000e+00, 245 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 0 180 95.00000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.41449 0 181 62.00000 0.41449 99.3% - 0s H 0 0 58.0000000 0.41449 99.3% - 0s 0 0 1.00000 0 182 58.00000 1.00000 98.3% - 0s H 0 0 53.0000000 1.00000 98.1% - 0s H 0 0 50.0000000 1.00000 98.0% - 0s 0 0 1.04457 0 183 50.00000 1.04457 97.9% - 0s H 0 0 46.0000000 1.04457 97.7% - 0s 0 0 1.04994 0 185 46.00000 1.04994 97.7% - 0s H 0 0 44.0000000 1.04994 97.6% - 0s H 0 0 43.0000000 1.04994 97.6% - 0s H 0 0 42.0000000 1.04994 97.5% - 0s 0 2 1.05008 0 185 42.00000 1.05008 97.5% - 0s H 40 38 20.0000000 1.05188 94.7% 40.4 0s * 247 138 20 19.0000000 1.40501 92.6% 29.5 0s * 378 165 20 18.0000000 1.52321 91.5% 33.6 0s * 2510 173 31 17.0000000 13.56098 20.2% 26.1 3s Explored 2909 nodes (74025 simplex iterations) in 4.02 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%