Optimize a model with 101 rows, 5050 columns and 10100 nonzeros Presolve time: 0.00s Presolved: 101 rows, 5050 columns, 10100 nonzeros Iteration Objective Primal Inf. Dual Inf. Time 0 1.4000000e+01 1.990000e+02 0.000000e+00 0s 167 6.1900000e+02 0.000000e+00 0.000000e+00 0s Solved in 167 iterations and 0.00 seconds Optimal objective 6.190000000e+02 Optimize a model with 106 rows, 5050 columns and 13697 nonzeros Iteration Objective Primal Inf. Dual Inf. Time 0 6.1900000e+02 5.000000e+00 0.000000e+00 0s 21 6.2600000e+02 0.000000e+00 0.000000e+00 0s Solved in 21 iterations and 0.00 seconds Optimal objective 6.260000000e+02 Optimize a model with 106 rows, 5050 columns and 13697 nonzeros Presolve time: 0.01s Presolved: 106 rows, 5050 columns, 13697 nonzeros Variable types: 0 continuous, 5050 integer (5050 binary) Root relaxation: objective 6.260000e+02, 182 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 626.00000 0 25 - 626.00000 - - 0s H 0 0 658.0000000 626.00000 4.86% - 0s 0 0 627.00000 0 24 658.00000 627.00000 4.71% - 0s 0 0 627.00000 0 25 658.00000 627.00000 4.71% - 0s 0 0 627.00000 0 24 658.00000 627.00000 4.71% - 0s 0 0 627.50000 0 31 658.00000 627.50000 4.64% - 0s 0 0 628.00000 0 16 658.00000 628.00000 4.56% - 0s 0 0 628.16667 0 46 658.00000 628.16667 4.53% - 0s H 0 0 629.0000000 628.16667 0.13% - 0s Cutting planes: Zero half: 12 Explored 0 nodes (432 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.290000000000e+02, best bound 6.290000000000e+02, gap 0.0% Optimize a model with 110 rows, 5050 columns and 17172 nonzeros Presolve time: 0.02s Presolved: 110 rows, 5050 columns, 17172 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 5050 integer (5050 binary) Root relaxation: objective 6.260000e+02, 170 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 626.00000 0 25 - 626.00000 - - 0s Another try with MIP start H 0 0 649.0000000 626.00000 3.54% - 0s 0 0 627.50000 0 20 649.00000 627.50000 3.31% - 0s 0 0 627.50000 0 25 649.00000 627.50000 3.31% - 0s H 0 0 637.0000000 627.50000 1.49% - 0s 0 0 627.50000 0 18 637.00000 627.50000 1.49% - 0s H 0 0 633.0000000 627.50000 0.87% - 0s 0 2 627.50000 0 18 633.00000 627.50000 0.87% - 0s * 8 6 12 629.0000000 629.00000 0.0% 2.5 0s Cutting planes: Gomory: 15 Zero half: 17 Explored 8 nodes (752 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.290000000000e+02, best bound 6.290000000000e+02, gap 0.0% Optimize a model with 112 rows, 5050 columns and 20374 nonzeros Presolve time: 0.02s Presolved: 112 rows, 5050 columns, 20374 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 5050 integer (5050 binary) Root relaxation: objective 6.260000e+02, 187 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 626.00000 0 41 - 626.00000 - - 0s Another try with MIP start H 0 0 687.0000000 626.00000 8.88% - 0s 0 0 628.00000 0 18 687.00000 628.00000 8.59% - 0s 0 0 628.00000 0 25 687.00000 628.00000 8.59% - 0s 0 0 628.50000 0 6 687.00000 628.50000 8.52% - 0s 0 0 628.75000 0 19 687.00000 628.75000 8.48% - 0s H 0 0 629.0000000 628.75000 0.04% - 0s Cutting planes: Zero half: 7 Explored 0 nodes (264 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.290000000000e+02, best bound 6.290000000000e+02, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:43:43 2012