Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:25 2013 Optimize a model with 5 rows, 100 columns and 500 nonzeros Presolve time: 0.00s Presolved: 5 rows, 100 columns, 500 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 56551.000000 Root relaxation: objective 5.996330e+04, 19 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 59963.2957 0 5 56551.0000 59963.2957 6.03% - 0s H 0 0 59625.000000 59963.2957 0.57% - 0s 0 0 59960.7133 0 7 59625.0000 59960.7133 0.56% - 0s 0 0 59958.2747 0 8 59625.0000 59958.2747 0.56% - 0s 0 0 59958.1024 0 9 59625.0000 59958.1024 0.56% - 0s 0 0 59958.1024 0 5 59625.0000 59958.1024 0.56% - 0s 0 0 59958.1024 0 8 59625.0000 59958.1024 0.56% - 0s 0 0 59958.1024 0 9 59625.0000 59958.1024 0.56% - 0s 0 2 59957.4143 0 9 59625.0000 59957.4143 0.56% - 0s H 31 30 59684.000000 59953.1462 0.45% 2.2 0s H 123 89 59687.000000 59948.9510 0.44% 2.3 0s H 149 101 59711.000000 59948.0552 0.40% 2.2 0s H 776 437 59731.000000 59929.6586 0.33% 2.6 0s H 985 457 59743.000000 59929.6586 0.31% 2.5 0s H 1441 528 59760.000000 59924.3960 0.28% 2.3 0s H 6946 2692 59761.000000 59886.7642 0.21% 2.2 0s H 8196 2406 59802.000000 59881.3363 0.13% 2.2 0s Cutting planes: Gomory: 3 Cover: 1 MIR: 1 Explored 19598 nodes (42148 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.980200000000e+04, best bound 5.980700000000e+04, gap 0.0084%