current bounds on the number of colors: 0 -- 33

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:01 2012

Optimize a model with 113 rows, 533 columns and 768 nonzeros
Presolve removed 26 rows and 416 columns
Presolve time: 0.00s
Presolved: 87 rows, 117 columns, 352 nonzeros
Variable types: 0 continuous, 117 integer (117 binary)

Root relaxation: objective 0.000000e+00, 12 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 (12 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 -- 16

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:01 2012

Optimize a model with 73 rows, 269 columns and 384 nonzeros
Presolve removed 26 rows and 208 columns
Presolve time: 0.00s
Presolved: 47 rows, 61 columns, 176 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)

Root relaxation: objective 0.000000e+00, 12 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 (12 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 Sat Dec 15 16:13:01 2012

Optimize a model with 53 rows, 137 columns and 192 nonzeros
Presolve removed 26 rows and 104 columns
Presolve time: 0.00s
Presolved: 27 rows, 33 columns, 88 nonzeros
Variable types: 0 continuous, 33 integer (33 binary)

Root relaxation: objective 0.000000e+00, 12 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 (12 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 16:13:01 2012

Optimize a model with 43 rows, 71 columns and 96 nonzeros
Presolve removed 33 rows and 59 columns
Presolve time: 0.00s
Presolved: 10 rows, 12 columns, 30 nonzeros
Variable types: 0 continuous, 12 integer (12 binary)

Root relaxation: objective 0.000000e+00, 5 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 (5 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 16:13:01 2012

Optimize a model with 38 rows, 38 columns and 48 nonzeros
Presolve removed 38 rows and 38 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