Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:15 2013 Optimize a model with 129 rows, 81 columns and 405 nonzeros Presolve removed 68 rows and 46 columns Presolve time: 0.00s Presolved: 61 rows, 35 columns, 201 nonzeros Variable types: 3 continuous, 32 integer (32 binary) Found heuristic solution: objective 1697.0000000 Root relaxation: objective 1.530683e+03, 3 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1530.68333 0 3 1697.00000 1530.68333 9.80% - 0s H 0 0 1545.0000000 1530.68333 0.93% - 0s 0 0 1533.50000 0 6 1545.00000 1533.50000 0.74% - 0s 0 0 1536.06716 0 5 1545.00000 1536.06716 0.58% - 0s 0 0 1536.06716 0 2 1545.00000 1536.06716 0.58% - 0s H 0 0 1542.0000000 1536.06716 0.38% - 0s 0 0 1536.73201 0 8 1542.00000 1536.73201 0.34% - 0s H 0 0 1538.0000000 1536.73201 0.08% - 0s 0 0 cutoff 0 1538.00000 1537.00154 0.06% - 0s Cutting planes: Implied bound: 2 MIR: 5 Explored 0 nodes (42 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.538000000000e+03, best bound 1.538000000000e+03, gap 0.0%