current bounds on the number of colors: 0 -- 184

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:09 2012

Optimize a model with 18308 rows, 17125 columns and 71300 nonzeros
Presolve removed 27 rows and 2484 columns
Presolve time: 0.13s
Presolved: 18281 rows, 14641 columns, 68816 nonzeros
Variable types: 0 continuous, 14641 integer (14641 binary)

Root relaxation: objective 0.000000e+00, 302 iterations, 0.01 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 (302 simplex iterations) in 0.15 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 -- 92

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:09 2012

Optimize a model with 9246 rows, 8661 columns and 35650 nonzeros
Presolve removed 27 rows and 1242 columns
Presolve time: 0.08s
Presolved: 9219 rows, 7419 columns, 34408 nonzeros
Variable types: 0 continuous, 7419 integer (7419 binary)

Root relaxation: objective 0.000000e+00, 302 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 (302 simplex iterations) in 0.09 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 -- 46

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:10 2012

Optimize a model with 4715 rows, 4429 columns and 17825 nonzeros
Presolve removed 27 rows and 621 columns
Presolve time: 0.03s
Presolved: 4688 rows, 3808 columns, 17204 nonzeros
Variable types: 0 continuous, 3808 integer (3808 binary)

Root relaxation: objective 0.000000e+00, 301 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 (301 simplex iterations) in 0.03 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 -- 23

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:10 2012

Optimize a model with 2351 rows, 2221 columns and 8525 nonzeros
Presolve removed 27 rows and 297 columns
Presolve time: 0.01s
Presolved: 2324 rows, 1924 columns, 8228 nonzeros
Variable types: 0 continuous, 1924 integer (1924 binary)

Root relaxation: objective 0.000000e+00, 293 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 (444 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:10 2012

Optimize a model with 1169 rows, 1117 columns and 3875 nonzeros
Presolve removed 27 rows and 135 columns
Presolve time: 0.00s
Presolved: 1142 rows, 982 columns, 3740 nonzeros
Variable types: 0 continuous, 982 integer (982 binary)

Root relaxation: objective 0.000000e+00, 262 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 (262 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:10 2012

Optimize a model with 578 rows, 565 columns and 1550 nonzeros
Presolve removed 188 rows and 217 columns
Presolve time: 0.00s
Presolved: 390 rows, 348 columns, 1170 nonzeros
Variable types: 0 continuous, 348 integer (348 binary)

Root relaxation: objective 0.000000e+00, 168 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  150          -    0.00000     -      -    0s

Explored 0 nodes (571 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


current bounds on the number of colors: 2 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:26:10 2012

Optimize a model with 775 rows, 749 columns and 2325 nonzeros
Presolve removed 27 rows and 81 columns
Presolve time: 0.00s
Presolved: 748 rows, 668 columns, 2244 nonzeros
Variable types: 0 continuous, 668 integer (668 binary)

Root relaxation: objective 0.000000e+00, 282 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 (282 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: 3