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

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:35 2012

Optimize a model with 494 rows, 746 columns and 2090 nonzeros
Presolve removed 10 rows and 190 columns
Presolve time: 0.00s
Presolved: 484 rows, 556 columns, 1900 nonzeros
Variable types: 0 continuous, 556 integer (556 binary)

Root relaxation: objective 0.000000e+00, 46 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 (46 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 Fri Dec 14 18:19:35 2012

Optimize a model with 254 rows, 366 columns and 990 nonzeros
Presolve removed 10 rows and 90 columns
Presolve time: 0.00s
Presolved: 244 rows, 276 columns, 900 nonzeros
Variable types: 0 continuous, 276 integer (276 binary)

Root relaxation: objective 0.000000e+00, 42 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 (42 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 Fri Dec 14 18:19:35 2012

Optimize a model with 134 rows, 176 columns and 440 nonzeros
Presolve removed 10 rows and 40 columns
Presolve time: 0.00s
Presolved: 124 rows, 136 columns, 400 nonzeros
Variable types: 0 continuous, 136 integer (136 binary)

Root relaxation: objective 0.000000e+00, 41 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 (41 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 Fri Dec 14 18:19:35 2012

Optimize a model with 86 rows, 100 columns and 220 nonzeros
Presolve removed 40 rows and 51 columns
Presolve time: 0.00s
Presolved: 46 rows, 49 columns, 138 nonzeros
Variable types: 0 continuous, 49 integer (49 binary)

Root relaxation: objective 0.000000e+00, 15 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 (15 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 Fri Dec 14 18:19:36 2012

Optimize a model with 62 rows, 62 columns and 110 nonzeros
Presolve removed 62 rows and 62 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