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 97 rows, 146 columns and 376 nonzeros
Presolve removed 5 rows and 40 columns
Presolve time: 0.00s
Presolved: 92 rows, 106 columns, 336 nonzeros
Variable types: 0 continuous, 106 integer (106 binary)

Root relaxation: objective 0.000000e+00, 20 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 (20 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 57 rows, 78 columns and 188 nonzeros
Presolve removed 5 rows and 20 columns
Presolve time: 0.00s
Presolved: 52 rows, 58 columns, 168 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)

Root relaxation: objective 0.000000e+00, 17 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 (17 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 37 rows, 44 columns and 94 nonzeros
Presolve removed 17 rows and 22 columns
Presolve time: 0.00s
Presolved: 20 rows, 22 columns, 60 nonzeros
Variable types: 0 continuous, 22 integer (22 binary)

Root relaxation: objective 0.000000e+00, 8 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 (8 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 -- 2

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:34 2012

Optimize a model with 27 rows, 27 columns and 47 nonzeros
Presolve removed 27 rows and 27 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 -


optimal solution found: number of colors: 2