Optimize a model with 29 rows, 406 columns and 812 nonzeros Presolve time: 0.00s Presolved: 29 rows, 406 columns, 812 nonzeros Iteration Objective Primal Inf. Dual Inf. Time 0 9.0000000e+01 5.500000e+01 0.000000e+00 0s 43 1.9440000e+03 0.000000e+00 0.000000e+00 0s Solved in 43 iterations and 0.00 seconds Optimal objective 1.944000000e+03 Optimize a model with 32 rows, 406 columns and 1052 nonzeros Iteration Objective Primal Inf. Dual Inf. Time 0 1.9440000e+03 3.000000e+00 0.000000e+00 0s 9 1.9880000e+03 0.000000e+00 0.000000e+00 0s Solved in 9 iterations and 0.00 seconds Optimal objective 1.988000000e+03 Optimize a model with 34 rows, 406 columns and 1260 nonzeros Iteration Objective Primal Inf. Dual Inf. Time 0 1.9880000e+03 2.000000e+00 0.000000e+00 0s 5 2.0135000e+03 0.000000e+00 0.000000e+00 0s Solved in 5 iterations and 0.00 seconds Optimal objective 2.013500000e+03 Optimize a model with 34 rows, 406 columns and 1260 nonzeros Presolve time: 0.00s Presolved: 34 rows, 406 columns, 1260 nonzeros Variable types: 0 continuous, 406 integer (406 binary) Found heuristic solution: objective 5001.0000000 Root relaxation: objective 2.013500e+03, 50 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2013.50000 0 8 5001.00000 2013.50000 59.7% - 0s H 0 0 2113.0000000 2013.50000 4.71% - 0s * 0 0 0 2017.0000000 2017.00000 0.0% - 0s Cutting planes: Zero half: 2 Explored 0 nodes (53 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.017000000000e+03, best bound 2.017000000000e+03, gap 0.0% Optimize a model with 37 rows, 406 columns and 1468 nonzeros Presolve time: 0.00s Presolved: 37 rows, 406 columns, 1468 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 406 integer (406 binary) Found heuristic solution: objective 5001.0000000 Root relaxation: objective 2.013500e+03, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2013.50000 0 6 5001.00000 2013.50000 59.7% - 0s Another try with MIP start H 0 0 2152.0000000 2013.50000 6.44% - 0s 0 0 2017.00000 0 10 2152.00000 2017.00000 6.27% - 0s 0 0 2017.00000 0 6 2152.00000 2017.00000 6.27% - 0s * 0 0 0 2019.0000000 2019.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 3 Explored 0 nodes (110 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.019000000000e+03, best bound 2.019000000000e+03, gap 0.0% Optimize a model with 39 rows, 406 columns and 1796 nonzeros Presolve time: 0.00s Presolved: 39 rows, 406 columns, 1796 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 406 integer (406 binary) Found heuristic solution: objective 5001.0000000 Root relaxation: objective 2.013500e+03, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2013.50000 0 6 5001.00000 2013.50000 59.7% - 0s Another try with MIP start H 0 0 2020.0000000 2013.50000 0.32% - 0s 0 0 infeasible 0 2020.00000 2019.00202 0.05% - 0s Cutting planes: Clique: 1 Zero half: 3 Explored 0 nodes (52 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.020000000000e+03, best bound 2.020000000000e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:42:23 2012