Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:52 2013 Optimize a model with 63 rows, 49 columns and 196 nonzeros Presolve removed 38 rows and 28 columns Presolve time: 0.00s Presolved: 25 rows, 21 columns, 87 nonzeros Variable types: 3 continuous, 18 integer (18 binary) Found heuristic solution: objective 1423.0000000 Found heuristic solution: objective 1359.0000000 Root relaxation: objective 1.257743e+03, 4 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1257.74324 0 3 1359.00000 1257.74324 7.45% - 0s 0 0 1263.95704 0 10 1359.00000 1263.95704 6.99% - 0s H 0 0 1266.0000000 1263.95704 0.16% - 0s H 0 0 1265.0000000 1263.95704 0.08% - 0s Cutting planes: Implied bound: 2 MIR: 3 Zero half: 1 Explored 0 nodes (16 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.265000000000e+03, best bound 1.265000000000e+03, gap 0.0%