Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:03:47 2013 Optimize a model with 20790 rows, 20340 columns and 81090 nonzeros Presolve removed 45 rows and 0 columns Presolve time: 0.09s Presolved: 20745 rows, 20340 columns, 81045 nonzeros Variable types: 20295 continuous, 45 integer (45 binary) Root relaxation: objective 4.695541e+04, 3741 iterations, 1.40 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46955.4131 0 39 - 46955.4131 - - 1s H 0 0 63116.000000 46955.4131 25.6% - 2s 0 0 57464.7325 0 9 63116.0000 57464.7325 8.95% - 3s H 0 0 62031.348007 57464.7325 7.36% - 3s H 0 0 60408.000000 57464.7325 4.87% - 3s 0 0 58109.7173 0 3 60408.0000 58109.7173 3.80% - 3s H 0 0 59114.563840 58109.7173 1.70% - 3s H 0 0 58756.000000 58109.7173 1.10% - 3s H 0 0 58333.000000 58109.7173 0.38% - 3s 0 0 58110.0874 0 2 58333.0000 58110.0874 0.38% - 3s 0 2 58112.2128 0 2 58333.0000 58112.2128 0.38% - 3s H 3 3 58298.939394 58216.0000 0.14% 62.7 3s H 4 3 58270.538462 58217.6857 0.09% 79.2 3s * 5 3 5 58244.000000 58217.6857 0.05% 67.8 3s Cutting planes: Gomory: 1 Implied bound: 41 Explored 9 nodes (6515 simplex iterations) in 4.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.824400000000e+04, best bound 5.824400000000e+04, gap 0.0%