current bounds on the number of colors: 0 -- 67

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:46 2012

Optimize a model with 991 rows, 2239 columns and 4983 nonzeros
Presolve removed 30 rows and 990 columns
Presolve time: 0.01s
Presolved: 961 rows, 1249 columns, 3993 nonzeros
Variable types: 0 continuous, 1249 integer (1249 binary)

Root relaxation: objective 0.000000e+00, 62 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 (62 simplex iterations) in 0.01 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 -- 33

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:46 2012

Optimize a model with 515 rows, 1100 columns and 2416 nonzeros
Presolve removed 30 rows and 480 columns
Presolve time: 0.00s
Presolved: 485 rows, 620 columns, 1936 nonzeros
Variable types: 0 continuous, 620 integer (620 binary)

Root relaxation: objective 0.000000e+00, 61 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 (61 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 16:13:46 2012

Optimize a model with 291 rows, 564 columns and 1208 nonzeros
Presolve removed 30 rows and 240 columns
Presolve time: 0.00s
Presolved: 261 rows, 324 columns, 968 nonzeros
Variable types: 0 continuous, 324 integer (324 binary)

Root relaxation: objective 0.000000e+00, 58 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 (58 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 16:13:46 2012

Optimize a model with 179 rows, 296 columns and 604 nonzeros
Presolve removed 30 rows and 120 columns
Presolve time: 0.00s
Presolved: 149 rows, 176 columns, 484 nonzeros
Variable types: 0 continuous, 176 integer (176 binary)

Root relaxation: objective 0.000000e+00, 49 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 (49 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 16:13:46 2012

Optimize a model with 123 rows, 162 columns and 302 nonzeros
Presolve removed 75 rows and 109 columns
Presolve time: 0.00s
Presolved: 48 rows, 53 columns, 144 nonzeros
Variable types: 0 continuous, 53 integer (53 binary)

Root relaxation: objective 0.000000e+00, 17 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 (17 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 16:13:46 2012

Optimize a model with 95 rows, 95 columns and 151 nonzeros
Presolve removed 95 rows and 95 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