Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:26 2013 Optimize a model with 473 rows, 18533 columns and 37023 nonzeros Presolve time: 0.03s Presolved: 473 rows, 18533 columns, 37023 nonzeros Variable types: 18490 continuous, 43 integer (43 binary) Root relaxation: objective 4.388432e+04, 782 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 43884.3179 0 9 - 43884.3179 - - 0s H 0 0 45757.000000 43884.3179 4.09% - 0s H 0 0 44766.000000 43884.3179 1.97% - 0s 0 0 44156.0162 0 6 44766.0000 44156.0162 1.36% - 0s 0 0 44185.2957 0 6 44766.0000 44185.2957 1.30% - 0s 0 0 44185.4491 0 4 44766.0000 44185.4491 1.30% - 0s H 0 0 44613.000000 44185.4491 0.96% - 0s 0 0 44185.5032 0 5 44613.0000 44185.5032 0.96% - 0s 0 0 44185.6058 0 4 44613.0000 44185.6058 0.96% - 0s 0 0 44185.7173 0 6 44613.0000 44185.7173 0.96% - 0s H 0 0 44263.000000 44185.7173 0.17% - 0s 0 0 44185.7173 0 8 44263.0000 44185.7173 0.17% - 0s 0 0 44199.3069 0 4 44263.0000 44199.3069 0.14% - 0s 0 0 44218.8723 0 6 44263.0000 44218.8723 0.10% - 0s 0 0 44224.9500 0 6 44263.0000 44224.9500 0.09% - 0s 0 0 44225.4563 0 4 44263.0000 44225.4563 0.08% - 0s 0 0 44226.0139 0 4 44263.0000 44226.0139 0.08% - 0s 0 0 44226.0933 0 4 44263.0000 44226.0933 0.08% - 0s 0 0 44243.7228 0 4 44263.0000 44243.7228 0.04% - 0s 0 0 44248.4747 0 2 44263.0000 44248.4747 0.03% - 0s Cutting planes: Implied bound: 82 Explored 0 nodes (2133 simplex iterations) in 0.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.426300000000e+04, best bound 4.426300000000e+04, gap 0.0%