current bounds on the number of colors: 0 -- 148

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:45:34 2012

Optimize a model with 41292 rows, 11508 columns and 134384 nonzeros
Presolve time: 0.15s
Presolved: 41292 rows, 11508 columns, 134384 nonzeros
Variable types: 0 continuous, 11508 integer (11508 binary)

Root relaxation: objective 0.000000e+00, 504 iterations, 0.03 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 (824 simplex iterations) in 0.24 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 -- 74

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:45:34 2012

Optimize a model with 20720 rows, 6032 columns and 67192 nonzeros
Presolve time: 0.11s
Presolved: 20720 rows, 6032 columns, 67192 nonzeros
Variable types: 0 continuous, 6032 integer (6032 binary)

Root relaxation: objective 0.000000e+00, 429 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 (718 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 -- 37

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:45:35 2012

Optimize a model with 10156 rows, 3220 columns and 32688 nonzeros
Presolve time: 0.04s
Presolved: 10156 rows, 3220 columns, 32688 nonzeros
Variable types: 0 continuous, 3220 integer (3220 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 (563 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 -- 18

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:45:35 2012

Optimize a model with 5152 rows, 1888 columns and 16344 nonzeros
Presolve time: 0.02s
Presolved: 5152 rows, 1888 columns, 16344 nonzeros
Variable types: 0 continuous, 1888 integer (1888 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 (564 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 -- 9

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:45:35 2012

Optimize a model with 2372 rows, 1148 columns and 7264 nonzeros
Presolve time: 0.01s
Presolved: 2372 rows, 1148 columns, 7264 nonzeros
Variable types: 0 continuous, 1148 integer (1148 binary)

Root relaxation: objective 0.000000e+00, 335 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  268          -    0.00000     -      -    0s
     0     0    0.00000    0  256          -    0.00000     -      -    0s
     0     0    0.00000    0  260          -    0.00000     -      -    0s
H    0     0                       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (5215 simplex iterations) in 0.29 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 Fri Dec 14 18:45:35 2012

Optimize a model with 1260 rows, 852 columns and 3632 nonzeros
Presolve removed 148 rows and 148 columns
Presolve time: 0.00s
Presolved: 1112 rows, 704 columns, 3336 nonzeros
Variable types: 0 continuous, 704 integer (704 binary)

Root relaxation: objective 0.000000e+00, 151 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  148          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (606 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 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:45:35 2012

Optimize a model with 1816 rows, 1000 columns and 5448 nonzeros
Presolve time: 0.00s
Presolved: 1816 rows, 1000 columns, 5448 nonzeros
Variable types: 0 continuous, 1000 integer (1000 binary)

Root relaxation: objective 0.000000e+00, 337 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  290          -    0.00000     -      -    0s
     0     0    0.00000    0  292          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (3234 simplex iterations) in 0.27 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: 4