current bounds on the number of colors: 0 -- 28
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:21 2012
Optimize a model with 2674 rows, 581 columns and 8330 nonzeros
Presolve time: 0.01s
Presolved: 2674 rows, 581 columns, 8330 nonzeros
Variable types: 0 continuous, 581 integer (581 binary)
Root relaxation: objective 0.000000e+00, 66 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 (175 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 -- 14
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:21 2012
Optimize a model with 1351 rows, 385 columns and 4165 nonzeros
Presolve time: 0.00s
Presolved: 1351 rows, 385 columns, 4165 nonzeros
Variable types: 0 continuous, 385 integer (385 binary)
Root relaxation: objective 0.000000e+00, 56 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 20 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (363 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 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:21 2012
Optimize a model with 595 rows, 273 columns and 1785 nonzeros
Presolve time: 0.00s
Presolved: 595 rows, 273 columns, 1785 nonzeros
Variable types: 0 continuous, 273 integer (273 binary)
Root relaxation: objective 0.000000e+00, 57 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 56 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Cutting planes:
Gomory: 2
Clique: 112
Zero half: 192
Explored 0 nodes (256 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 -
current bounds on the number of colors: 3 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:21 2012
Optimize a model with 973 rows, 329 columns and 2975 nonzeros
Presolve time: 0.00s
Presolved: 973 rows, 329 columns, 2975 nonzeros
Variable types: 0 continuous, 329 integer (329 binary)
Root relaxation: objective 0.000000e+00, 58 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 32 - 0.00000 - - 0s
0 0 0.00000 0 30 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (902 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -
current bounds on the number of colors: 5 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:56:21 2012
Optimize a model with 1162 rows, 357 columns and 3570 nonzeros
Presolve time: 0.00s
Presolved: 1162 rows, 357 columns, 3570 nonzeros
Variable types: 0 continuous, 357 integer (357 binary)
Root relaxation: objective 0.000000e+00, 57 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 26 - 0.00000 - - 0s
0 0 0.00000 0 50 - 0.00000 - - 0s
0 0 0.00000 0 53 - 0.00000 - - 0s
0 0 0.00000 0 71 - 0.00000 - - 0s
0 0 0.00000 0 46 - 0.00000 - - 0s
0 0 0.00000 0 61 - 0.00000 - - 0s
0 0 0.00000 0 20 - 0.00000 - - 0s
0 0 0.00000 0 48 - 0.00000 - - 0s
0 0 0.00000 0 53 - 0.00000 - - 0s
0 0 0.00000 0 53 - 0.00000 - - 0s
0 2 0.00000 0 53 - 0.00000 - - 0s
Cutting planes:
Clique: 10
Zero half: 3
Explored 12 nodes (5780 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
optimal solution found: number of colors: 7