Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:51 2013 Optimize a model with 440 rows, 16040 columns and 32040 nonzeros Presolve time: 0.02s Presolved: 440 rows, 16040 columns, 32040 nonzeros Variable types: 16000 continuous, 40 integer (40 binary) Root relaxation: objective 4.310513e+04, 665 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 43105.1336 0 10 - 43105.1336 - - 0s H 0 0 45165.000000 43105.1336 4.56% - 0s 0 0 43488.7644 0 6 45165.0000 43488.7644 3.71% - 0s 0 0 43507.9348 0 3 45165.0000 43507.9348 3.67% - 0s H 0 0 43888.482616 43507.9348 0.87% - 0s H 0 0 43765.000000 43507.9348 0.59% - 0s 0 0 43510.8948 0 5 43765.0000 43510.8948 0.58% - 0s 0 0 43517.4218 0 3 43765.0000 43517.4218 0.57% - 0s H 0 0 43753.000000 43517.4218 0.54% - 0s 0 0 43519.9272 0 3 43753.0000 43519.9272 0.53% - 0s 0 0 43527.5448 0 3 43753.0000 43527.5448 0.52% - 0s 0 0 43533.4958 0 2 43753.0000 43533.4958 0.50% - 0s H 0 0 43567.000000 43533.4958 0.08% - 0s 0 0 43533.4958 0 5 43567.0000 43533.4958 0.08% - 0s 0 0 43533.4958 0 3 43567.0000 43533.4958 0.08% - 0s 0 0 43533.4958 0 2 43567.0000 43533.4958 0.08% - 0s 0 0 43533.4958 0 2 43567.0000 43533.4958 0.08% - 0s 0 0 43533.4958 0 2 43567.0000 43533.4958 0.08% - 0s 0 2 43537.3282 0 2 43567.0000 43537.3282 0.07% - 0s * 5 0 1 43566.000000 43566.0000 0.0% 12.8 0s Cutting planes: Implied bound: 26 Flow cover: 1 Explored 6 nodes (1468 simplex iterations) in 0.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.356600000000e+04, best bound 4.356600000000e+04, gap 0.0%