current bounds on the number of colors: 0 -- 72
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:52 2012
Optimize a model with 4176 rows, 2706 columns and 14904 nonzeros
Presolve removed 4 rows and 144 columns
Presolve time: 0.03s
Presolved: 4172 rows, 2562 columns, 14760 nonzeros
Variable types: 0 continuous, 2562 integer (2562 binary)
Root relaxation: objective 0.000000e+00, 143 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 (143 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 -- 36
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:53 2012
Optimize a model with 2124 rows, 1410 columns and 7452 nonzeros
Presolve removed 4 rows and 72 columns
Presolve time: 0.01s
Presolved: 2120 rows, 1338 columns, 7380 nonzeros
Variable types: 0 continuous, 1338 integer (1338 binary)
Root relaxation: objective 0.000000e+00, 138 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 (138 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 -- 18
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:53 2012
Optimize a model with 1098 rows, 762 columns and 3726 nonzeros
Presolve removed 4 rows and 36 columns
Presolve time: 0.00s
Presolved: 1094 rows, 726 columns, 3690 nonzeros
Variable types: 0 continuous, 726 integer (726 binary)
Root relaxation: objective 0.000000e+00, 135 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 (135 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 -- 9
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:53 2012
Optimize a model with 528 rows, 402 columns and 1656 nonzeros
Presolve removed 4 rows and 16 columns
Presolve time: 0.00s
Presolved: 524 rows, 386 columns, 1640 nonzeros
Variable types: 0 continuous, 386 integer (386 binary)
Root relaxation: objective 0.000000e+00, 136 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 (235 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 -- 4
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:53 2012
Optimize a model with 300 rows, 258 columns and 828 nonzeros
Presolve removed 72 rows and 76 columns
Presolve time: 0.00s
Presolved: 228 rows, 182 columns, 684 nonzeros
Variable types: 0 continuous, 182 integer (182 binary)
Root relaxation: objective 0.000000e+00, 74 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 68 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (245 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 -- 4
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:53 2012
Optimize a model with 414 rows, 330 columns and 1242 nonzeros
Presolve removed 4 rows and 12 columns
Presolve time: 0.00s
Presolved: 410 rows, 318 columns, 1230 nonzeros
Variable types: 0 continuous, 318 integer (318 binary)
Root relaxation: objective 0.000000e+00, 158 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 (266 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