current bounds on the number of colors: 0 -- 17
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:34 2012
Optimize a model with 145 rows, 152 columns and 520 nonzeros
Presolve removed 2 rows and 16 columns
Presolve time: 0.00s
Presolved: 143 rows, 136 columns, 504 nonzeros
Variable types: 0 continuous, 136 integer (136 binary)
Root relaxation: objective 0.000000e+00, 25 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 (25 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 -- 8
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:34 2012
Optimize a model with 81 rows, 84 columns and 260 nonzeros
Presolve removed 2 rows and 8 columns
Presolve time: 0.00s
Presolved: 79 rows, 76 columns, 252 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Root relaxation: objective 0.000000e+00, 28 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 (28 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 19:35:34 2012
Optimize a model with 49 rows, 50 columns and 130 nonzeros
Presolve removed 17 rows and 19 columns
Presolve time: 0.00s
Presolved: 32 rows, 31 columns, 96 nonzeros
Variable types: 0 continuous, 31 integer (31 binary)
Root relaxation: objective 0.000000e+00, 15 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 15 - 0.00000 - - 0s
Explored 0 nodes (50 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 19:35:34 2012
Optimize a model with 65 rows, 67 columns and 195 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 63 rows, 61 columns, 189 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Root relaxation: objective 0.000000e+00, 27 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 (27 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