current bounds on the number of colors: 0 -- 249 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:20 2012 Optimize a model with 41169 rows, 31206 columns and 153636 nonzeros Presolve removed 9 rows and 1116 columns Presolve time: 0.21s Presolved: 41160 rows, 30090 columns, 152520 nonzeros Variable types: 0 continuous, 30090 integer (30090 binary) Root relaxation: objective 0.000000e+00, 483 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 (722 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 -- 124 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:21 2012 Optimize a model with 20709 rows, 15768 columns and 76818 nonzeros Presolve removed 9 rows and 558 columns Presolve time: 0.14s Presolved: 20700 rows, 15210 columns, 76260 nonzeros Variable types: 0 continuous, 15210 integer (15210 binary) Root relaxation: objective 0.000000e+00, 480 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 (728 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 -- 62 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:22 2012 Optimize a model with 10479 rows, 8049 columns and 38409 nonzeros Presolve removed 9 rows and 279 columns Presolve time: 0.07s Presolved: 10470 rows, 7770 columns, 38130 nonzeros Variable types: 0 continuous, 7770 integer (7770 binary) Root relaxation: objective 0.000000e+00, 478 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 (478 simplex iterations) in 0.08 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 -- 31 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:22 2012 Optimize a model with 5199 rows, 4065 columns and 18585 nonzeros Presolve removed 9 rows and 135 columns Presolve time: 0.02s Presolved: 5190 rows, 3930 columns, 18450 nonzeros Variable types: 0 continuous, 3930 integer (3930 binary) Root relaxation: objective 0.000000e+00, 506 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 (810 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:48:22 2012 Optimize a model with 2559 rows, 2073 columns and 8673 nonzeros Presolve removed 9 rows and 63 columns Presolve time: 0.01s Presolved: 2550 rows, 2010 columns, 8610 nonzeros Variable types: 0 continuous, 2010 integer (2010 binary) Root relaxation: objective 0.000000e+00, 473 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 (700 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 Sat Dec 15 16:48:22 2012 Optimize a model with 1239 rows, 1077 columns and 3717 nonzeros Presolve removed 9 rows and 27 columns Presolve time: 0.00s Presolved: 1230 rows, 1050 columns, 3690 nonzeros Variable types: 0 continuous, 1050 integer (1050 binary) Root relaxation: objective 0.000000e+00, 481 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 (661 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 16:48:22 2012 Optimize a model with 579 rows, 579 columns and 1239 nonzeros Presolve removed 579 rows and 579 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 16:48:22 2012 Optimize a model with 909 rows, 828 columns and 2478 nonzeros Presolve removed 253 rows and 264 columns Presolve time: 0.00s Presolved: 656 rows, 564 columns, 1968 nonzeros Variable types: 0 continuous, 564 integer (564 binary) Root relaxation: objective 0.000000e+00, 267 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 0 233 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (923 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