Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:06 2013 Optimize a model with 242 rows, 4862 columns and 9702 nonzeros Presolve time: 0.01s Presolved: 242 rows, 4862 columns, 9702 nonzeros Variable types: 4840 continuous, 22 integer (22 binary) Root relaxation: objective 2.457579e+04, 188 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 24575.7942 0 6 - 24575.7942 - - 0s H 0 0 24966.000000 24575.7942 1.56% - 0s 0 0 24802.6170 0 3 24966.0000 24802.6170 0.65% - 0s 0 0 24814.2600 0 2 24966.0000 24814.2600 0.61% - 0s H 0 0 24964.500000 24814.2600 0.60% - 0s 0 0 24823.5100 0 2 24964.5000 24823.5100 0.56% - 0s H 0 0 24947.875000 24823.5100 0.50% - 0s 0 0 24825.8177 0 2 24947.8750 24825.8177 0.49% - 0s H 0 0 24945.653846 24825.8177 0.48% - 0s 0 0 24829.6539 0 2 24945.6538 24829.6539 0.47% - 0s 0 0 24829.7600 0 1 24945.6538 24829.7600 0.46% - 0s H 0 0 24932.000000 24829.7600 0.41% - 0s 0 0 24838.7647 0 2 24932.0000 24838.7647 0.37% - 0s 0 0 24838.8939 0 2 24932.0000 24838.8939 0.37% - 0s 0 0 24839.0000 0 1 24932.0000 24839.0000 0.37% - 0s H 0 0 24904.000000 24839.0000 0.26% - 0s 0 2 24841.0000 0 1 24904.0000 24841.0000 0.25% - 0s * 1 1 1 24841.000000 24841.0000 0.0% 5.0 0s Cutting planes: Implied bound: 27 Flow cover: 6 Explored 2 nodes (298 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.484100000000e+04, best bound 2.484100000000e+04, gap 0.0%