current bounds on the number of colors: 0 -- 38

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:06 2012

Optimize a model with 209 rows, 731 columns and 1235 nonzeros
Presolve removed 25 rows and 475 columns
Presolve time: 0.00s
Presolved: 184 rows, 256 columns, 760 nonzeros
Variable types: 0 continuous, 256 integer (256 binary)

Root relaxation: objective 0.000000e+00, 22 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 (22 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 -- 19

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:06 2012

Optimize a model with 119 rows, 351 columns and 585 nonzeros
Presolve removed 25 rows and 225 columns
Presolve time: 0.00s
Presolved: 94 rows, 126 columns, 360 nonzeros
Variable types: 0 continuous, 126 integer (126 binary)

Root relaxation: objective 0.000000e+00, 22 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 (22 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 Sat Dec 15 16:13:06 2012

Optimize a model with 74 rows, 161 columns and 260 nonzeros
Presolve removed 25 rows and 100 columns
Presolve time: 0.00s
Presolved: 49 rows, 61 columns, 160 nonzeros
Variable types: 0 continuous, 61 integer (61 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 -- 4

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:06 2012

Optimize a model with 56 rows, 85 columns and 130 nonzeros
Presolve removed 40 rows and 66 columns
Presolve time: 0.00s
Presolved: 16 rows, 19 columns, 48 nonzeros
Variable types: 0 continuous, 19 integer (19 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 Sat Dec 15 16:13:06 2012

Optimize a model with 47 rows, 47 columns and 65 nonzeros
Presolve removed 47 rows and 47 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