Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:18:16 2013 Optimize a model with 594 rows, 29214 columns and 58374 nonzeros Presolve time: 0.04s Presolved: 594 rows, 29214 columns, 58374 nonzeros Variable types: 29160 continuous, 54 integer (54 binary) Root relaxation: objective 4.880112e+04, 885 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 48801.1201 0 9 - 48801.1201 - - 0s H 0 0 52193.000000 48801.1201 6.50% - 0s 0 0 49029.2402 0 8 52193.0000 49029.2402 6.06% - 0s H 0 0 51942.000000 49029.2402 5.61% - 0s 0 0 49056.2224 0 5 51942.0000 49056.2224 5.56% - 0s H 0 0 50796.194111 49056.2224 3.43% - 0s H 0 0 50438.000000 49056.2224 2.74% - 0s 0 0 49070.9978 0 4 50438.0000 49070.9978 2.71% - 0s H 0 0 50423.000000 49070.9978 2.68% - 0s 0 0 49073.8055 0 4 50423.0000 49073.8055 2.68% - 0s 0 0 49074.2035 0 4 50423.0000 49074.2035 2.67% - 0s H 0 0 50404.000000 49074.2035 2.64% - 0s H 0 0 49222.000000 49074.2035 0.30% - 0s 0 0 49074.2035 0 9 49222.0000 49074.2035 0.30% - 0s H 0 0 49212.000000 49074.2035 0.28% - 0s 0 0 49095.9017 0 6 49212.0000 49095.9017 0.24% - 0s 0 0 49109.5660 0 5 49212.0000 49109.5660 0.21% - 0s 0 0 49129.5713 0 4 49212.0000 49129.5713 0.17% - 0s 0 0 49132.2332 0 4 49212.0000 49132.2332 0.16% - 0s 0 0 49132.6861 0 4 49212.0000 49132.6861 0.16% - 0s 0 0 49132.6861 0 4 49212.0000 49132.6861 0.16% - 0s 0 0 49157.4479 0 3 49212.0000 49157.4479 0.11% - 0s 0 0 49159.5957 0 1 49212.0000 49159.5957 0.11% - 0s 0 2 49160.5122 0 1 49212.0000 49160.5122 0.10% - 0s * 4 1 3 49199.000000 49191.7500 0.01% 45.0 1s Cutting planes: Implied bound: 48 Flow cover: 2 Explored 6 nodes (2183 simplex iterations) in 1.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.919900000000e+04, best bound 4.919900000000e+04, gap 0.0%