Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:06:23 2013 Optimize a model with 22654 rows, 22184 columns and 88454 nonzeros Presolve removed 47 rows and 0 columns Presolve time: 0.10s Presolved: 22607 rows, 22184 columns, 88407 nonzeros Variable types: 22137 continuous, 47 integer (47 binary) Root relaxation: objective 3.907617e+04, 2460 iterations, 0.61 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39076.1704 0 38 - 39076.1704 - - 0s H 0 0 47258.000000 39076.1704 17.3% - 1s 0 0 44242.0294 0 10 47258.0000 44242.0294 6.38% - 2s H 0 0 46954.000000 44242.0294 5.78% - 2s 0 0 44699.7620 0 4 46954.0000 44699.7620 4.80% - 2s H 0 0 45845.000000 44699.7620 2.50% - 2s H 0 0 45646.000000 44699.7620 2.07% - 2s 0 0 44707.1703 0 3 45646.0000 44707.1703 2.06% - 2s H 0 0 45370.424939 44707.1703 1.46% - 2s H 0 0 45090.000000 44707.1703 0.85% - 2s H 0 0 44895.000000 44707.1703 0.42% - 2s 0 0 44710.5507 0 1 44895.0000 44710.5507 0.41% - 2s H 0 0 44846.000000 44710.5507 0.30% - 2s 0 2 44710.7442 0 1 44846.0000 44710.7442 0.30% - 2s * 6 2 5 44817.000000 44760.2544 0.13% 69.0 3s H 9 0 44809.000000 44782.3190 0.06% 67.6 3s * 10 1 3 44791.000000 44791.0000 0.0% 66.0 3s Cutting planes: Implied bound: 40 Explored 11 nodes (4743 simplex iterations) in 3.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.479100000000e+04, best bound 4.479100000000e+04, gap 0.0%