Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:33 2012 Optimize a model with 930 rows, 62 columns and 1860 nonzeros Presolve removed 630 rows and 0 columns Presolve time: 0.01s Presolved: 300 rows, 62 columns, 1705 nonzeros Variable types: 0 continuous, 62 integer (62 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.057840e+01, 149 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.57840 0 56 6.00000 10.57840 76.3% - 0s H 0 0 7.0000000 10.57840 51.1% - 0s 0 0 10.20720 0 60 7.00000 10.20720 45.8% - 0s 0 0 10.09056 0 59 7.00000 10.09056 44.2% - 0s 0 0 10.05068 0 60 7.00000 10.05068 43.6% - 0s 0 0 10.03342 0 59 7.00000 10.03342 43.3% - 0s 0 0 10.02982 0 61 7.00000 10.02982 43.3% - 0s 0 0 10.01542 0 60 7.00000 10.01542 43.1% - 0s 0 0 10.00474 0 61 7.00000 10.00474 42.9% - 0s 0 2 10.00440 0 61 7.00000 10.00440 42.9% - 0s Cutting planes: Clique: 43 Zero half: 4 Explored 55 nodes (2064 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%