current bounds on the number of colors: 0 -- 213 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:50 2012 Optimize a model with 27773 rows, 22838 columns and 105258 nonzeros Presolve removed 18 rows and 1908 columns Presolve time: 0.13s Presolved: 27755 rows, 20930 columns, 103350 nonzeros Variable types: 0 continuous, 20930 integer (20930 binary) Root relaxation: objective 0.000000e+00, 381 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 (381 simplex iterations) in 0.16 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 -- 106 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:51 2012 Optimize a model with 13993 rows, 11549 columns and 52629 nonzeros Presolve removed 18 rows and 954 columns Presolve time: 0.13s Presolved: 13975 rows, 10595 columns, 51675 nonzeros Variable types: 0 continuous, 10595 integer (10595 binary) Root relaxation: objective 0.000000e+00, 386 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 (386 simplex iterations) in 0.14 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:51 2012 Optimize a model with 6973 rows, 5798 columns and 25818 nonzeros Presolve removed 18 rows and 468 columns Presolve time: 0.04s Presolved: 6955 rows, 5330 columns, 25350 nonzeros Variable types: 0 continuous, 5330 integer (5330 binary) Root relaxation: objective 0.000000e+00, 386 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 (386 simplex iterations) in 0.05 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 16:33:51 2012 Optimize a model with 3593 rows, 3029 columns and 12909 nonzeros Presolve removed 18 rows and 234 columns Presolve time: 0.02s Presolved: 3575 rows, 2795 columns, 12675 nonzeros Variable types: 0 continuous, 2795 integer (2795 binary) Root relaxation: objective 0.000000e+00, 407 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 (628 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:51 2012 Optimize a model with 1773 rows, 1538 columns and 5958 nonzeros Presolve removed 18 rows and 108 columns Presolve time: 0.01s Presolved: 1755 rows, 1430 columns, 5850 nonzeros Variable types: 0 continuous, 1430 integer (1430 binary) Root relaxation: objective 0.000000e+00, 362 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 (362 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 16:33:51 2012 Optimize a model with 993 rows, 899 columns and 2979 nonzeros Presolve removed 18 rows and 54 columns Presolve time: 0.00s Presolved: 975 rows, 845 columns, 2925 nonzeros Variable types: 0 continuous, 845 integer (845 binary) Root relaxation: objective 0.000000e+00, 383 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 (383 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 16:33:51 2012 Optimize a model with 473 rows, 473 columns and 993 nonzeros Presolve removed 473 rows and 473 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 16:33:51 2012 Optimize a model with 733 rows, 686 columns and 1986 nonzeros Presolve removed 217 rows and 237 columns Presolve time: 0.00s Presolved: 516 rows, 449 columns, 1548 nonzeros Variable types: 0 continuous, 449 integer (449 binary) Root relaxation: objective 0.000000e+00, 212 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 0 191 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (692 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