current bounds on the number of colors: 0 -- 116
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:03 2012
Optimize a model with 19430 rows, 7061 columns and 64670 nonzeros
Presolve removed 1 rows and 58 columns
Presolve time: 0.13s
Presolved: 19429 rows, 7003 columns, 64612 nonzeros
Variable types: 0 continuous, 7003 integer (7003 binary)
Root relaxation: objective 0.000000e+00, 357 iterations, 0.02 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 0.17 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 -- 58
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:04 2012
Optimize a model with 9773 rows, 3697 columns and 32335 nonzeros
Presolve removed 1 rows and 29 columns
Presolve time: 0.05s
Presolved: 9772 rows, 3668 columns, 32306 nonzeros
Variable types: 0 continuous, 3668 integer (3668 binary)
Root relaxation: objective 0.000000e+00, 323 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 (523 simplex iterations) in 0.07 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 -- 29
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:04 2012
Optimize a model with 4778 rows, 1957 columns and 15610 nonzeros
Presolve removed 1 rows and 14 columns
Presolve time: 0.02s
Presolved: 4777 rows, 1943 columns, 15596 nonzeros
Variable types: 0 continuous, 1943 integer (1943 binary)
Root relaxation: objective 0.000000e+00, 241 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 (407 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 -- 14
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:04 2012
Optimize a model with 2447 rows, 1145 columns and 7805 nonzeros
Presolve removed 1 rows and 7 columns
Presolve time: 0.01s
Presolved: 2446 rows, 1138 columns, 7798 nonzeros
Variable types: 0 continuous, 1138 integer (1138 binary)
Root relaxation: objective 0.000000e+00, 259 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 (447 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 -- 7
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:04 2012
Optimize a model with 1115 rows, 681 columns and 3345 nonzeros
Presolve removed 1 rows and 3 columns
Presolve time: 0.00s
Presolved: 1114 rows, 678 columns, 3342 nonzeros
Variable types: 0 continuous, 678 integer (678 binary)
Root relaxation: objective 0.000000e+00, 258 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 0 220 - 0.00000 - - 0s
0 0 0.00000 0 222 - 0.00000 - - 0s
0 0 0.00000 0 220 - 0.00000 - - 0s
0 0 0.00000 0 288 - 0.00000 - - 0s
0 0 0.00000 0 214 - 0.00000 - - 0s
0 0 0.00000 0 257 - 0.00000 - - 0s
0 0 0.00000 0 284 - 0.00000 - - 0s
0 0 0.00000 0 270 - 0.00000 - - 0s
0 0 0.00000 0 184 - 0.00000 - - 0s
0 0 0.00000 0 180 - 0.00000 - - 0s
0 0 0.00000 0 216 - 0.00000 - - 0s
0 0 0.00000 0 215 - 0.00000 - - 0s
0 2 0.00000 0 215 - 0.00000 - - 0s
Cutting planes:
Zero half: 13
Explored 17 nodes (13780 simplex iterations) in 0.95 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: 3 -- 7
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:05 2012
Optimize a model with 1781 rows, 913 columns and 5575 nonzeros
Presolve removed 1 rows and 5 columns
Presolve time: 0.00s
Presolved: 1780 rows, 908 columns, 5570 nonzeros
Variable types: 0 continuous, 908 integer (908 binary)
Root relaxation: objective 0.000000e+00, 249 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 (609 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:29:05 2012
Optimize a model with 1448 rows, 797 columns and 4460 nonzeros
Presolve removed 1 rows and 4 columns
Presolve time: 0.00s
Presolved: 1447 rows, 793 columns, 4456 nonzeros
Variable types: 0 continuous, 793 integer (793 binary)
Root relaxation: objective 0.000000e+00, 265 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 54 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (1015 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%
optimal solution found: number of colors: 4