current bounds on the number of colors: 0 -- 82 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:21:45 2012 Optimize a model with 6724 rows, 3524 columns and 23288 nonzeros Presolve removed 3 rows and 123 columns Presolve time: 0.04s Presolved: 6721 rows, 3401 columns, 23165 nonzeros Variable types: 0 continuous, 3401 integer (3401 binary) Root relaxation: objective 0.000000e+00, 205 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 (205 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 -- 41 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:21:45 2012 Optimize a model with 3322 rows, 1802 columns and 11360 nonzeros Presolve removed 3 rows and 60 columns Presolve time: 0.01s Presolved: 3319 rows, 1742 columns, 11300 nonzeros Variable types: 0 continuous, 1742 integer (1742 binary) Root relaxation: objective 0.000000e+00, 173 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 (293 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 -- 20 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:21:45 2012 Optimize a model with 1702 rows, 982 columns and 5680 nonzeros Presolve removed 3 rows and 30 columns Presolve time: 0.01s Presolved: 1699 rows, 952 columns, 5650 nonzeros Variable types: 0 continuous, 952 integer (952 binary) Root relaxation: objective 0.000000e+00, 183 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 (301 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 -- 10 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:21:45 2012 Optimize a model with 892 rows, 572 columns and 2840 nonzeros Presolve removed 3 rows and 15 columns Presolve time: 0.00s Presolved: 889 rows, 557 columns, 2825 nonzeros Variable types: 0 continuous, 557 integer (557 binary) Root relaxation: objective 0.000000e+00, 182 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 (301 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 -- 5 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:21:45 2012 Optimize a model with 406 rows, 326 columns and 1136 nonzeros Presolve removed 82 rows and 85 columns Presolve time: 0.00s Presolved: 324 rows, 241 columns, 972 nonzeros Variable types: 0 continuous, 241 integer (241 binary) Root relaxation: objective 0.000000e+00, 87 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 79 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (309 simplex iterations) in 0.00 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 -- 5 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:21:45 2012 Optimize a model with 568 rows, 408 columns and 1704 nonzeros Presolve removed 3 rows and 9 columns Presolve time: 0.00s Presolved: 565 rows, 399 columns, 1695 nonzeros Variable types: 0 continuous, 399 integer (399 binary) Root relaxation: objective 0.000000e+00, 195 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 0 108 - 0.00000 - - 0s 0 0 0.00000 0 110 - 0.00000 - - 0s 0 0 0.00000 0 95 - 0.00000 - - 0s 0 0 0.00000 0 93 - 0.00000 - - 0s 0 0 0.00000 0 95 - 0.00000 - - 0s 0 0 0.00000 0 80 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 6 Explored 0 nodes (2045 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% optimal solution found: number of colors: 3