current bounds on the number of colors: 0 -- 43
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:41 2012
Optimize a model with 925 rows, 945 columns and 3549 nonzeros
Presolve removed 8 rows and 168 columns
Presolve time: 0.01s
Presolved: 917 rows, 777 columns, 3381 nonzeros
Variable types: 0 continuous, 777 integer (777 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 -- 21
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:41 2012
Optimize a model with 463 rows, 472 columns and 1690 nonzeros
Presolve removed 8 rows and 80 columns
Presolve time: 0.00s
Presolved: 455 rows, 392 columns, 1610 nonzeros
Variable types: 0 continuous, 392 integer (392 binary)
Root relaxation: objective 0.000000e+00, 64 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 (64 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 -- 10
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:41 2012
Optimize a model with 253 rows, 257 columns and 845 nonzeros
Presolve removed 8 rows and 40 columns
Presolve time: 0.00s
Presolved: 245 rows, 217 columns, 805 nonzeros
Variable types: 0 continuous, 217 integer (217 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 (89 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 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:41 2012
Optimize a model with 127 rows, 128 columns and 338 nonzeros
Presolve removed 43 rows and 51 columns
Presolve time: 0.00s
Presolved: 84 rows, 77 columns, 252 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Root relaxation: objective 0.000000e+00, 38 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 35 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (103 simplex iterations) in 0.00 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 Fri Dec 14 18:19:41 2012
Optimize a model with 169 rows, 171 columns and 507 nonzeros
Presolve removed 8 rows and 24 columns
Presolve time: 0.00s
Presolved: 161 rows, 147 columns, 483 nonzeros
Variable types: 0 continuous, 147 integer (147 binary)
Root relaxation: objective 0.000000e+00, 71 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 (100 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