current bounds on the number of colors: 0 -- 47
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:11 2012
Optimize a model with 2899 rows, 1205 columns and 9637 nonzeros
Presolve time: 0.01s
Presolved: 2899 rows, 1205 columns, 9637 nonzeros
Variable types: 0 continuous, 1205 integer (1205 binary)
Root relaxation: objective 0.000000e+00, 105 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 (178 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 -- 23
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:11 2012
Optimize a model with 1411 rows, 641 columns and 4609 nonzeros
Presolve time: 0.00s
Presolved: 1411 rows, 641 columns, 4609 nonzeros
Variable types: 0 continuous, 641 integer (641 binary)
Root relaxation: objective 0.000000e+00, 98 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 (176 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 -- 11
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:11 2012
Optimize a model with 667 rows, 359 columns and 2095 nonzeros
Presolve time: 0.00s
Presolved: 667 rows, 359 columns, 2095 nonzeros
Variable types: 0 continuous, 359 integer (359 binary)
Root relaxation: objective 0.000000e+00, 111 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 (195 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 Thu Dec 13 19:36:11 2012
Optimize a model with 295 rows, 218 columns and 838 nonzeros
Presolve removed 47 rows and 47 columns
Presolve time: 0.00s
Presolved: 248 rows, 171 columns, 744 nonzeros
Variable types: 0 continuous, 171 integer (171 binary)
Root relaxation: objective 0.000000e+00, 48 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 47 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (190 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 Thu Dec 13 19:36:11 2012
Optimize a model with 419 rows, 265 columns and 1257 nonzeros
Presolve time: 0.00s
Presolved: 419 rows, 265 columns, 1257 nonzeros
Variable types: 0 continuous, 265 integer (265 binary)
Root relaxation: objective 0.000000e+00, 125 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 84 - 0.00000 - - 0s
0 0 0.00000 0 84 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (952 simplex iterations) in 0.03 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:11 2012
Optimize a model with 543 rows, 312 columns and 1676 nonzeros
Presolve time: 0.00s
Presolved: 543 rows, 312 columns, 1676 nonzeros
Variable types: 0 continuous, 312 integer (312 binary)
Root relaxation: objective 0.000000e+00, 107 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 (251 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: 4