current bounds on the number of colors: 0 -- 108
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:37 2012
Optimize a model with 3294 rows, 5891 columns and 15390 nonzeros
Presolve removed 29 rows and 1566 columns
Presolve time: 0.04s
Presolved: 3265 rows, 4325 columns, 13824 nonzeros
Variable types: 0 continuous, 4325 integer (4325 binary)
Root relaxation: objective 0.000000e+00, 125 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 (125 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 -- 54
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:37 2012
Optimize a model with 1701 rows, 2975 columns and 7695 nonzeros
Presolve removed 29 rows and 783 columns
Presolve time: 0.01s
Presolved: 1672 rows, 2192 columns, 6912 nonzeros
Variable types: 0 continuous, 2192 integer (2192 binary)
Root relaxation: objective 0.000000e+00, 125 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 (125 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 -- 27
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:37 2012
Optimize a model with 875 rows, 1463 columns and 3705 nonzeros
Presolve removed 29 rows and 377 columns
Presolve time: 0.00s
Presolved: 846 rows, 1086 columns, 3328 nonzeros
Variable types: 0 continuous, 1086 integer (1086 binary)
Root relaxation: objective 0.000000e+00, 129 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 (129 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 -- 13
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:37 2012
Optimize a model with 462 rows, 707 columns and 1710 nonzeros
Presolve removed 29 rows and 174 columns
Presolve time: 0.00s
Presolved: 433 rows, 533 columns, 1536 nonzeros
Variable types: 0 continuous, 533 integer (533 binary)
Root relaxation: objective 0.000000e+00, 121 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 (121 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 -- 6
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:15:37 2012
Optimize a model with 285 rows, 383 columns and 855 nonzeros
Presolve removed 29 rows and 87 columns
Presolve time: 0.00s
Presolved: 256 rows, 296 columns, 768 nonzeros
Variable types: 0 continuous, 296 integer (296 binary)
Root relaxation: objective 0.000000e+00, 102 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 (102 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 16:15:37 2012
Optimize a model with 167 rows, 167 columns and 285 nonzeros
Presolve removed 167 rows and 167 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 16:15:37 2012
Optimize a model with 226 rows, 275 columns and 570 nonzeros
Presolve removed 136 rows and 179 columns
Presolve time: 0.00s
Presolved: 90 rows, 96 columns, 270 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Root relaxation: objective 0.000000e+00, 40 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 (40 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%
optimal solution found: number of colors: 2