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 295 rows, 425 columns and 1204 nonzeros
Presolve removed 10 rows and 140 columns
Presolve time: 0.00s
Presolved: 285 rows, 285 columns, 1064 nonzeros
Variable types: 0 continuous, 285 integer (285 binary)

Root relaxation: objective 0.000000e+00, 31 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 (31 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 162 rows, 222 columns and 602 nonzeros
Presolve removed 10 rows and 70 columns
Presolve time: 0.00s
Presolved: 152 rows, 152 columns, 532 nonzeros
Variable types: 0 continuous, 152 integer (152 binary)

Root relaxation: objective 0.000000e+00, 33 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 (33 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 86 rows, 106 columns and 258 nonzeros
Presolve removed 10 rows and 30 columns
Presolve time: 0.00s
Presolved: 76 rows, 76 columns, 228 nonzeros
Variable types: 0 continuous, 76 integer (76 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 48 rows, 48 columns and 86 nonzeros
Presolve removed 48 rows and 48 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 67 rows, 77 columns and 172 nonzeros
Presolve removed 29 rows and 39 columns
Presolve time: 0.00s
Presolved: 38 rows, 38 columns, 114 nonzeros
Variable types: 0 continuous, 38 integer (38 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