current bounds on the number of colors: 0 -- 29

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:26 2012

Optimize a model with 239 rows, 421 columns and 1036 nonzeros
Presolve removed 9 rows and 126 columns
Presolve time: 0.00s
Presolved: 230 rows, 295 columns, 910 nonzeros
Variable types: 0 continuous, 295 integer (295 binary)

Root relaxation: objective 0.000000e+00, 32 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 (32 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 -- 14

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:26 2012

Optimize a model with 134 rows, 218 columns and 518 nonzeros
Presolve removed 9 rows and 63 columns
Presolve time: 0.00s
Presolved: 125 rows, 155 columns, 455 nonzeros
Variable types: 0 continuous, 155 integer (155 binary)

Root relaxation: objective 0.000000e+00, 30 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 (30 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 18:19:26 2012

Optimize a model with 74 rows, 102 columns and 222 nonzeros
Presolve removed 9 rows and 27 columns
Presolve time: 0.00s
Presolved: 65 rows, 75 columns, 195 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)

Root relaxation: objective 0.000000e+00, 30 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 (30 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 18:19:26 2012

Optimize a model with 44 rows, 44 columns and 74 nonzeros
Presolve removed 44 rows and 44 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 18:19:26 2012

Optimize a model with 59 rows, 73 columns and 148 nonzeros
Presolve removed 29 rows and 38 columns
Presolve time: 0.00s
Presolved: 30 rows, 35 columns, 90 nonzeros
Variable types: 0 continuous, 35 integer (35 binary)

Root relaxation: objective 0.000000e+00, 11 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 (11 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