current bounds on the number of colors: 0 -- 159
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 19:13:42 2012
Optimize a model with 50324 rows, 13196 columns and 163056 nonzeros
Presolve time: 0.17s
Presolved: 50324 rows, 13196 columns, 163056 nonzeros
Variable types: 0 continuous, 13196 integer (13196 binary)
Root relaxation: objective 0.000000e+00, 578 iterations, 0.04 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 (902 simplex iterations) in 0.28 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 -- 79
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 19:13:43 2012
Optimize a model with 24924 rows, 6836 columns and 80496 nonzeros
Presolve time: 0.13s
Presolved: 24924 rows, 6836 columns, 80496 nonzeros
Variable types: 0 continuous, 6836 integer (6836 binary)
Root relaxation: objective 0.000000e+00, 435 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 (726 simplex iterations) in 0.18 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 -- 39
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 19:13:43 2012
Optimize a model with 12224 rows, 3656 columns and 39216 nonzeros
Presolve time: 0.05s
Presolved: 12224 rows, 3656 columns, 39216 nonzeros
Variable types: 0 continuous, 3656 integer (3656 binary)
Root relaxation: objective 0.000000e+00, 329 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 (597 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 -- 19
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 19:13:43 2012
Optimize a model with 5874 rows, 2066 columns and 18576 nonzeros
Presolve time: 0.02s
Presolved: 5874 rows, 2066 columns, 18576 nonzeros
Variable types: 0 continuous, 2066 integer (2066 binary)
Root relaxation: objective 0.000000e+00, 340 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 (619 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 19:13:43 2012
Optimize a model with 2699 rows, 1271 columns and 8256 nonzeros
Presolve time: 0.01s
Presolved: 2699 rows, 1271 columns, 8256 nonzeros
Variable types: 0 continuous, 1271 integer (1271 binary)
Root relaxation: objective 0.000000e+00, 372 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 304 - 0.00000 - - 0s
0 0 0.00000 0 276 - 0.00000 - - 0s
0 0 0.00000 0 302 - 0.00000 - - 0s
0 0 0.00000 0 298 - 0.00000 - - 0s
0 0 0.00000 0 404 - 0.00000 - - 0s
0 0 0.00000 0 263 - 0.00000 - - 0s
0 0 0.00000 0 344 - 0.00000 - - 1s
0 0 0.00000 0 371 - 0.00000 - - 1s
0 0 0.00000 0 371 - 0.00000 - - 1s
0 2 0.00000 0 371 - 0.00000 - - 1s
805 140 0.00000 5 282 - 0.00000 - 79.6 5s
813 145 0.00000 19 331 - 0.00000 - 78.8 10s
820 150 0.00000 13 303 - 0.00000 - 78.2 15s
* 916 112 24 0.0000000 0.00000 0.0% 134 16s
Cutting planes:
Clique: 1
Zero half: 8
Explored 917 nodes (138439 simplex iterations) in 16.28 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 19:14:00 2012
Optimize a model with 1429 rows, 953 columns and 4128 nonzeros
Presolve removed 159 rows and 159 columns
Presolve time: 0.00s
Presolved: 1270 rows, 794 columns, 3810 nonzeros
Variable types: 0 continuous, 794 integer (794 binary)
Root relaxation: objective 0.000000e+00, 172 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 0 159 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (671 simplex iterations) in 0.02 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 19:14:00 2012
Optimize a model with 2064 rows, 1112 columns and 6192 nonzeros
Presolve time: 0.01s
Presolved: 2064 rows, 1112 columns, 6192 nonzeros
Variable types: 0 continuous, 1112 integer (1112 binary)
Root relaxation: objective 0.000000e+00, 368 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 0 310 - 0.00000 - - 0s
0 0 0.00000 0 308 - 0.00000 - - 0s
0 0 0.00000 0 380 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Cutting planes:
Gomory: 27
Zero half: 367
Explored 0 nodes (6500 simplex iterations) in 0.64 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