current bounds on the number of colors: 0 -- 194

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:23 2012

Optimize a model with 18818 rows, 19010 columns and 74690 nonzeros
Presolve removed 20 rows and 1940 columns
Presolve time: 0.12s
Presolved: 18798 rows, 17070 columns, 72750 nonzeros
Variable types: 0 continuous, 17070 integer (17070 binary)

Root relaxation: objective 0.000000e+00, 319 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 (319 simplex iterations) in 0.14 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 -- 97

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:23 2012

Optimize a model with 9410 rows, 9504 columns and 36960 nonzeros
Presolve removed 20 rows and 960 columns
Presolve time: 0.09s
Presolved: 9390 rows, 8544 columns, 36000 nonzeros
Variable types: 0 continuous, 8544 integer (8544 binary)

Root relaxation: objective 0.000000e+00, 316 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 (316 simplex iterations) in 0.11 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 -- 48

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:23 2012

Optimize a model with 4802 rows, 4848 columns and 18480 nonzeros
Presolve removed 20 rows and 480 columns
Presolve time: 0.03s
Presolved: 4782 rows, 4368 columns, 18000 nonzeros
Variable types: 0 continuous, 4368 integer (4368 binary)

Root relaxation: objective 0.000000e+00, 315 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 (315 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 -- 24

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:23 2012

Optimize a model with 2498 rows, 2520 columns and 9240 nonzeros
Presolve removed 20 rows and 240 columns
Presolve time: 0.01s
Presolved: 2478 rows, 2280 columns, 9000 nonzeros
Variable types: 0 continuous, 2280 integer (2280 binary)

Root relaxation: objective 0.000000e+00, 324 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 (482 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 -- 12

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:23 2012

Optimize a model with 1346 rows, 1356 columns and 4620 nonzeros
Presolve removed 20 rows and 120 columns
Presolve time: 0.00s
Presolved: 1326 rows, 1236 columns, 4500 nonzeros
Variable types: 0 continuous, 1236 integer (1236 binary)

Root relaxation: objective 0.000000e+00, 308 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 (308 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 -- 6

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:23 2012

Optimize a model with 770 rows, 774 columns and 2310 nonzeros
Presolve removed 20 rows and 60 columns
Presolve time: 0.00s
Presolved: 750 rows, 714 columns, 2250 nonzeros
Variable types: 0 continuous, 714 integer (714 binary)

Root relaxation: objective 0.000000e+00, 280 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 (280 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 16:28:23 2012

Optimize a model with 386 rows, 386 columns and 770 nonzeros
Presolve removed 386 rows and 386 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 16:28:23 2012

Optimize a model with 578 rows, 580 columns and 1540 nonzeros
Presolve removed 206 rows and 232 columns
Presolve time: 0.00s
Presolved: 372 rows, 348 columns, 1116 nonzeros
Variable types: 0 continuous, 348 integer (348 binary)

Root relaxation: objective 0.000000e+00, 182 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  158          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (598 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 -


optimal solution found: number of colors: 3