current bounds on the number of colors: 0 -- 84
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 7056 rows, 3694 columns and 24444 nonzeros
Presolve removed 4 rows and 168 columns
Presolve time: 0.05s
Presolved: 7052 rows, 3526 columns, 24276 nonzeros
Variable types: 0 continuous, 3526 integer (3526 binary)
Root relaxation: objective 0.000000e+00, 217 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 (346 simplex iterations) in 0.06 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 -- 42
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 3570 rows, 1930 columns and 12222 nonzeros
Presolve removed 4 rows and 84 columns
Presolve time: 0.02s
Presolved: 3566 rows, 1846 columns, 12138 nonzeros
Variable types: 0 continuous, 1846 integer (1846 binary)
Root relaxation: objective 0.000000e+00, 192 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 (192 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 -- 21
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 1744 rows, 1006 columns and 5820 nonzeros
Presolve removed 4 rows and 40 columns
Presolve time: 0.01s
Presolved: 1740 rows, 966 columns, 5780 nonzeros
Variable types: 0 continuous, 966 integer (966 binary)
Root relaxation: objective 0.000000e+00, 177 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 (291 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 -- 10
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 914 rows, 586 columns and 2910 nonzeros
Presolve removed 4 rows and 20 columns
Presolve time: 0.00s
Presolved: 910 rows, 566 columns, 2890 nonzeros
Variable types: 0 continuous, 566 integer (566 binary)
Root relaxation: objective 0.000000e+00, 189 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 (313 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 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 416 rows, 334 columns and 1164 nonzeros
Presolve removed 84 rows and 88 columns
Presolve time: 0.00s
Presolved: 332 rows, 246 columns, 996 nonzeros
Variable types: 0 continuous, 246 integer (246 binary)
Root relaxation: objective 0.000000e+00, 91 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 80 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (338 simplex iterations) in 0.00 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: 2 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 582 rows, 418 columns and 1746 nonzeros
Presolve removed 4 rows and 12 columns
Presolve time: 0.00s
Presolved: 578 rows, 406 columns, 1734 nonzeros
Variable types: 0 continuous, 406 integer (406 binary)
Root relaxation: objective 0.000000e+00, 189 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 0 136 - 0.00000 - - 0s
0 0 0.00000 0 102 - 0.00000 - - 0s
0 0 0.00000 0 55 - 0.00000 - - 0s
0 0 0.00000 0 135 - 0.00000 - - 0s
0 0 0.00000 0 71 - 0.00000 - - 0s
0 0 0.00000 0 91 - 0.00000 - - 0s
0 0 0.00000 0 71 - 0.00000 - - 0s
0 0 0.00000 0 60 - 0.00000 - - 0s
0 0 0.00000 0 93 - 0.00000 - - 0s
0 0 0.00000 0 75 - 0.00000 - - 0s
0 0 0.00000 0 110 - 0.00000 - - 0s
0 0 0.00000 0 107 - 0.00000 - - 0s
0 2 0.00000 0 107 - 0.00000 - - 0s
Cutting planes:
Gomory: 1
Zero half: 32
Explored 12 nodes (4879 simplex iterations) in 0.27 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:22:01 2012
Optimize a model with 748 rows, 502 columns and 2328 nonzeros
Presolve removed 4 rows and 16 columns
Presolve time: 0.00s
Presolved: 744 rows, 486 columns, 2312 nonzeros
Variable types: 0 continuous, 486 integer (486 binary)
Root relaxation: objective 0.000000e+00, 204 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 (340 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%
optimal solution found: number of colors: 4