current bounds on the number of colors: 0 -- 14

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:15 2012

Optimize a model with 42 rows, 102 columns and 182 nonzeros
Presolve removed 8 rows and 56 columns
Presolve time: 0.00s
Presolved: 34 rows, 46 columns, 126 nonzeros
Variable types: 0 continuous, 46 integer (46 binary)

Root relaxation: objective 0.000000e+00, 9 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 (9 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 -- 7

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:15 2012

Optimize a model with 26 rows, 46 columns and 78 nonzeros
Presolve removed 8 rows and 24 columns
Presolve time: 0.00s
Presolved: 18 rows, 22 columns, 54 nonzeros
Variable types: 0 continuous, 22 integer (22 binary)

Root relaxation: objective 0.000000e+00, 10 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 (10 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 -- 3

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:15 2012

Optimize a model with 18 rows, 18 columns and 26 nonzeros
Presolve removed 18 rows and 18 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 -


current bounds on the number of colors: 1 -- 3

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:15 2012

Optimize a model with 22 rows, 32 columns and 52 nonzeros
Presolve removed 16 rows and 25 columns
Presolve time: 0.00s
Presolved: 6 rows, 7 columns, 18 nonzeros
Variable types: 0 continuous, 7 integer (7 binary)

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