current bounds on the number of colors: 0 -- 201 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:17 2012 Optimize a model with 22801 rows, 20326 columns and 87900 nonzeros Presolve removed 23 rows and 2300 columns Presolve time: 0.13s Presolved: 22778 rows, 18026 columns, 85600 nonzeros Variable types: 0 continuous, 18026 integer (18026 binary) Root relaxation: objective 0.000000e+00, 344 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (344 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:17 2012 Optimize a model with 11501 rows, 10276 columns and 43950 nonzeros Presolve removed 23 rows and 1150 columns Presolve time: 0.10s Presolved: 11478 rows, 9126 columns, 42800 nonzeros Variable types: 0 continuous, 9126 integer (9126 binary) Root relaxation: objective 0.000000e+00, 342 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (342 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:18 2012 Optimize a model with 5851 rows, 5251 columns and 21975 nonzeros Presolve removed 23 rows and 575 columns Presolve time: 0.03s Presolved: 5828 rows, 4676 columns, 21400 nonzeros Variable types: 0 continuous, 4676 integer (4676 binary) Root relaxation: objective 0.000000e+00, 343 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (343 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:18 2012 Optimize a model with 2913 rows, 2638 columns and 10548 nonzeros Presolve removed 23 rows and 276 columns Presolve time: 0.01s Presolved: 2890 rows, 2362 columns, 10272 nonzeros Variable types: 0 continuous, 2362 integer (2362 binary) Root relaxation: objective 0.000000e+00, 342 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (342 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:18 2012 Optimize a model with 1557 rows, 1432 columns and 5274 nonzeros Presolve removed 23 rows and 138 columns Presolve time: 0.01s Presolved: 1534 rows, 1294 columns, 5136 nonzeros Variable types: 0 continuous, 1294 integer (1294 binary) Root relaxation: objective 0.000000e+00, 324 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (457 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:18 2012 Optimize a model with 879 rows, 829 columns and 2637 nonzeros Presolve removed 23 rows and 69 columns Presolve time: 0.00s Presolved: 856 rows, 760 columns, 2568 nonzeros Variable types: 0 continuous, 760 integer (760 binary) Root relaxation: objective 0.000000e+00, 312 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (312 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:18 2012 Optimize a model with 427 rows, 427 columns and 879 nonzeros Presolve removed 427 rows and 427 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:18 2012 Optimize a model with 653 rows, 628 columns and 1758 nonzeros Presolve removed 201 rows and 224 columns Presolve time: 0.00s Presolved: 452 rows, 404 columns, 1356 nonzeros Variable types: 0 continuous, 404 integer (404 binary) Root relaxation: objective 0.000000e+00, 207 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 178 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (689 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3