Gurobi 5.0.1 (linux64) logging started Fri Nov 16 07:17:36 2012 Optimize a model with 10614 rows, 3782 columns and 35380 nonzeros Presolve time: 0.09s Presolved: 10614 rows, 3782 columns, 35628 nonzeros Variable types: 0 continuous, 3782 integer (3782 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 2.000000e+00, 3045 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 122 42.00000 2.00000 95.2% - 0s H 0 0 11.0000000 2.00000 81.8% - 0s H 0 0 5.0000000 2.00000 60.0% - 0s 0 0 2.00000 0 122 5.00000 2.00000 60.0% - 1s 0 0 2.00000 0 122 5.00000 2.00000 60.0% - 5s 0 0 2.00000 0 122 5.00000 2.00000 60.0% - 10s H 0 0 4.0000000 2.00000 50.0% - 10s 0 0 2.00000 0 122 4.00000 2.00000 50.0% - 13s 0 0 2.00000 0 122 4.00000 2.00000 50.0% - 17s 0 0 2.00000 0 122 4.00000 2.00000 50.0% - 21s 0 2 2.00000 0 122 4.00000 2.00000 50.0% - 30s 1 3 2.50000 1 315 4.00000 2.00000 50.0% 21873 35s 2 4 2.50000 1 513 4.00000 2.50000 37.5% 27174 47s 17 7 2.50000 3 165 4.00000 2.50000 37.5% 3775 50s 57 9 2.54545 2 327 4.00000 2.50000 37.5% 1624 55s 95 11 3.00000 5 140 4.00000 2.66667 33.3% 1156 60s Cutting planes: Clique: 103 Explored 155 nodes (188047 simplex iterations) in 61.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%