current bounds on the number of colors: 0 -- 119

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:26 2012

Optimize a model with 4839 rows, 7101 columns and 21181 nonzeros
Presolve removed 28 rows and 1652 columns
Presolve time: 0.06s
Presolved: 4811 rows, 5449 columns, 19529 nonzeros
Variable types: 0 continuous, 5449 integer (5449 binary)

Root relaxation: objective 0.000000e+00, 153 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 (153 simplex iterations) in 0.06 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 -- 59

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:26 2012

Optimize a model with 2439 rows, 3531 columns and 10411 nonzeros
Presolve removed 28 rows and 812 columns
Presolve time: 0.02s
Presolved: 2411 rows, 2719 columns, 9599 nonzeros
Variable types: 0 continuous, 2719 integer (2719 binary)

Root relaxation: objective 0.000000e+00, 152 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 (152 simplex iterations) in 0.02 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 -- 29

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:26 2012

Optimize a model with 1239 rows, 1746 columns and 5026 nonzeros
Presolve removed 28 rows and 392 columns
Presolve time: 0.01s
Presolved: 1211 rows, 1354 columns, 4634 nonzeros
Variable types: 0 continuous, 1354 integer (1354 binary)

Root relaxation: objective 0.000000e+00, 156 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 (156 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 -- 14

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:16:26 2012

Optimize a model with 679 rows, 913 columns and 2513 nonzeros
Presolve removed 28 rows and 196 columns
Presolve time: 0.00s
Presolved: 651 rows, 717 columns, 2317 nonzeros
Variable types: 0 continuous, 717 integer (717 binary)

Root relaxation: objective 0.000000e+00, 146 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 (146 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 Sat Dec 15 16:16:26 2012

Optimize a model with 359 rows, 437 columns and 1077 nonzeros
Presolve removed 28 rows and 84 columns
Presolve time: 0.00s
Presolved: 331 rows, 353 columns, 993 nonzeros
Variable types: 0 continuous, 353 integer (353 binary)

Root relaxation: objective 0.000000e+00, 146 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 (146 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 Sat Dec 15 16:16:26 2012

Optimize a model with 199 rows, 199 columns and 359 nonzeros
Presolve removed 199 rows and 199 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 Sat Dec 15 16:16:26 2012

Optimize a model with 279 rows, 318 columns and 718 nonzeros
Presolve removed 133 rows and 168 columns
Presolve time: 0.00s
Presolved: 146 rows, 150 columns, 438 nonzeros
Variable types: 0 continuous, 150 integer (150 binary)

Root relaxation: objective 0.000000e+00, 73 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 (73 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