current bounds on the number of colors: 0 -- 209 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:47 2012 Optimize a model with 24649 rows, 21971 columns and 95056 nonzeros Presolve removed 18 rows and 1872 columns Presolve time: 0.15s Presolved: 24631 rows, 20099 columns, 93184 nonzeros Variable types: 0 continuous, 20099 integer (20099 binary) Root relaxation: objective 0.000000e+00, 353 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 (353 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 -- 104 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:48 2012 Optimize a model with 12429 rows, 11103 columns and 47528 nonzeros Presolve removed 18 rows and 936 columns Presolve time: 0.11s Presolved: 12411 rows, 10167 columns, 46592 nonzeros Variable types: 0 continuous, 10167 integer (10167 binary) Root relaxation: objective 0.000000e+00, 354 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 (354 simplex iterations) in 0.13 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 -- 52 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:48 2012 Optimize a model with 6319 rows, 5669 columns and 23764 nonzeros Presolve removed 18 rows and 468 columns Presolve time: 0.04s Presolved: 6301 rows, 5201 columns, 23296 nonzeros Variable types: 0 continuous, 5201 integer (5201 binary) Root relaxation: objective 0.000000e+00, 354 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 (354 simplex iterations) in 0.04 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:48 2012 Optimize a model with 3264 rows, 2952 columns and 11882 nonzeros Presolve removed 18 rows and 234 columns Presolve time: 0.01s Presolved: 3246 rows, 2718 columns, 11648 nonzeros Variable types: 0 continuous, 2718 integer (2718 binary) Root relaxation: objective 0.000000e+00, 367 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 (560 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:49 2012 Optimize a model with 1619 rows, 1489 columns and 5484 nonzeros Presolve removed 18 rows and 108 columns Presolve time: 0.01s Presolved: 1601 rows, 1381 columns, 5376 nonzeros Variable types: 0 continuous, 1381 integer (1381 binary) Root relaxation: objective 0.000000e+00, 337 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 (337 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:49 2012 Optimize a model with 914 rows, 862 columns and 2742 nonzeros Presolve removed 18 rows and 54 columns Presolve time: 0.00s Presolved: 896 rows, 808 columns, 2688 nonzeros Variable types: 0 continuous, 808 integer (808 binary) Root relaxation: objective 0.000000e+00, 378 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 (538 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:49 2012 Optimize a model with 444 rows, 444 columns and 914 nonzeros Presolve removed 444 rows and 444 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 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: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:32:49 2012 Optimize a model with 679 rows, 653 columns and 1828 nonzeros Presolve removed 217 rows and 239 columns Presolve time: 0.00s Presolved: 462 rows, 414 columns, 1386 nonzeros Variable types: 0 continuous, 414 integer (414 binary) Root relaxation: objective 0.000000e+00, 208 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 0 177 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (655 simplex iterations) in 0.01 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: 3