current bounds on the number of colors: 0 -- 42

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:10 2012

Optimize a model with 210 rows, 890 columns and 1386 nonzeros
Presolve removed 29 rows and 609 columns
Presolve time: 0.00s
Presolved: 181 rows, 281 columns, 777 nonzeros
Variable types: 0 continuous, 281 integer (281 binary)

Root relaxation: objective 0.000000e+00, 21 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 (21 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 -- 21

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:10 2012

Optimize a model with 122 rows, 428 columns and 660 nonzeros
Presolve removed 29 rows and 290 columns
Presolve time: 0.00s
Presolved: 93 rows, 138 columns, 370 nonzeros
Variable types: 0 continuous, 138 integer (138 binary)

Root relaxation: objective 0.000000e+00, 21 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 (21 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 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:10 2012

Optimize a model with 82 rows, 218 columns and 330 nonzeros
Presolve removed 29 rows and 145 columns
Presolve time: 0.00s
Presolved: 53 rows, 73 columns, 185 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)

Root relaxation: objective 0.000000e+00, 21 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 (21 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:10 2012

Optimize a model with 58 rows, 92 columns and 132 nonzeros
Presolve removed 46 rows and 77 columns
Presolve time: 0.00s
Presolved: 12 rows, 15 columns, 36 nonzeros
Variable types: 0 continuous, 15 integer (15 binary)

Root relaxation: objective 0.000000e+00, 6 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 (6 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 Sat Dec 15 16:13:10 2012

Optimize a model with 50 rows, 50 columns and 66 nonzeros
Presolve removed 50 rows and 50 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