current bounds on the number of colors: 0 -- 18
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012
Optimize a model with 234 rows, 186 columns and 810 nonzeros
Presolve removed 1 rows and 9 columns
Presolve time: 0.00s
Presolved: 233 rows, 177 columns, 801 nonzeros
Variable types: 0 continuous, 177 integer (177 binary)
Root relaxation: objective 0.000000e+00, 34 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 (56 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 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012
Optimize a model with 114 rows, 96 columns and 360 nonzeros
Presolve removed 1 rows and 4 columns
Presolve time: 0.00s
Presolved: 113 rows, 92 columns, 356 nonzeros
Variable types: 0 continuous, 92 integer (92 binary)
Root relaxation: objective 0.000000e+00, 37 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 (58 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 -- 4
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012
Optimize a model with 66 rows, 60 columns and 180 nonzeros
Presolve removed 18 rows and 19 columns
Presolve time: 0.00s
Presolved: 48 rows, 41 columns, 144 nonzeros
Variable types: 0 continuous, 41 integer (41 binary)
Root relaxation: objective 0.000000e+00, 18 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 17 - 0.00000 - - 0s
Explored 0 nodes (45 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 -- 4
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:35 2012
Optimize a model with 90 rows, 78 columns and 270 nonzeros
Presolve removed 1 rows and 3 columns
Presolve time: 0.00s
Presolved: 89 rows, 75 columns, 267 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Root relaxation: objective 0.000000e+00, 37 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 (65 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: 3