Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:50 2013 Optimize a model with 330 rows, 9030 columns and 18030 nonzeros Presolve time: 0.01s Presolved: 330 rows, 9030 columns, 18030 nonzeros Variable types: 9000 continuous, 30 integer (30 binary) Root relaxation: objective 3.425709e+04, 491 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 34257.0878 0 6 - 34257.0878 - - 0s H 0 0 34640.000000 34257.0878 1.11% - 0s 0 0 34354.8418 0 3 34640.0000 34354.8418 0.82% - 0s 0 0 34358.2258 0 1 34640.0000 34358.2258 0.81% - 0s H 0 0 34595.838710 34358.2258 0.69% - 0s H 0 0 34526.000000 34358.2258 0.49% - 0s 0 0 34360.9509 0 2 34526.0000 34360.9509 0.48% - 0s H 0 0 34525.000000 34360.9509 0.48% - 0s 0 0 34361.8696 0 1 34525.0000 34361.8696 0.47% - 0s 0 0 34364.4674 0 1 34525.0000 34364.4674 0.46% - 0s 0 0 34364.4674 0 1 34525.0000 34364.4674 0.46% - 0s 0 0 34364.4674 0 1 34525.0000 34364.4674 0.46% - 0s 0 0 34364.4674 0 1 34525.0000 34364.4674 0.46% - 0s 0 2 34366.3571 0 1 34525.0000 34366.3571 0.46% - 0s * 8 7 8 34436.000000 34386.4298 0.14% 8.0 0s * 10 3 6 34426.000000 34386.4298 0.11% 8.7 0s H 12 1 34419.000000 34387.0190 0.09% 9.5 0s * 13 1 5 34409.000000 34387.0190 0.06% 9.7 0s H 14 0 34393.000000 34387.0190 0.02% 9.0 0s Cutting planes: Implied bound: 62 Flow cover: 5 Explored 15 nodes (755 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.439300000000e+04, best bound 3.438991176471e+04, gap 0.0090%