current bounds on the number of colors: 0 -- 194 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:33 2012 Optimize a model with 21243 rows, 19035 columns and 81965 nonzeros Presolve removed 19 rows and 1843 columns Presolve time: 0.13s Presolved: 21224 rows, 17192 columns, 80122 nonzeros Variable types: 0 continuous, 17192 integer (17192 binary) Root relaxation: objective 0.000000e+00, 319 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 (319 simplex iterations) in 0.15 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 -- 97 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:34 2012 Optimize a model with 10610 rows, 9529 columns and 40560 nonzeros Presolve removed 19 rows and 912 columns Presolve time: 0.09s Presolved: 10591 rows, 8617 columns, 39648 nonzeros Variable types: 0 continuous, 8617 integer (8617 binary) Root relaxation: objective 0.000000e+00, 322 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 (322 simplex iterations) in 0.10 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 -- 48 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:34 2012 Optimize a model with 5402 rows, 4873 columns and 20280 nonzeros Presolve removed 19 rows and 456 columns Presolve time: 0.03s Presolved: 5383 rows, 4417 columns, 19824 nonzeros Variable types: 0 continuous, 4417 integer (4417 binary) Root relaxation: objective 0.000000e+00, 317 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 (317 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:34 2012 Optimize a model with 2798 rows, 2545 columns and 10140 nonzeros Presolve removed 19 rows and 228 columns Presolve time: 0.01s Presolved: 2779 rows, 2317 columns, 9912 nonzeros Variable types: 0 continuous, 2317 integer (2317 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:34 2012 Optimize a model with 1496 rows, 1381 columns and 5070 nonzeros Presolve removed 19 rows and 114 columns Presolve time: 0.01s Presolved: 1477 rows, 1267 columns, 4956 nonzeros Variable types: 0 continuous, 1267 integer (1267 binary) Root relaxation: objective 0.000000e+00, 342 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 (342 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 16:28:34 2012 Optimize a model with 845 rows, 799 columns and 2535 nonzeros Presolve removed 19 rows and 57 columns Presolve time: 0.00s Presolved: 826 rows, 742 columns, 2478 nonzeros Variable types: 0 continuous, 742 integer (742 binary) Root relaxation: objective 0.000000e+00, 360 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 (488 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 16:28:34 2012 Optimize a model with 411 rows, 411 columns and 845 nonzeros Presolve removed 411 rows and 411 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 16:28:34 2012 Optimize a model with 628 rows, 605 columns and 1690 nonzeros Presolve removed 198 rows and 219 columns Presolve time: 0.00s Presolved: 430 rows, 386 columns, 1290 nonzeros Variable types: 0 continuous, 386 integer (386 binary) Root relaxation: objective 0.000000e+00, 198 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 0 164 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (669 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