current bounds on the number of colors: 0 -- 59 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:12 2012 Optimize a model with 3017 rows, 1813 columns and 10585 nonzeros Presolve removed 1 rows and 29 columns Presolve time: 0.02s Presolved: 3016 rows, 1784 columns, 10556 nonzeros Variable types: 0 continuous, 1784 integer (1784 binary) Root relaxation: objective 0.000000e+00, 127 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 (127 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 -- 29 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:12 2012 Optimize a model with 1487 rows, 928 columns and 5110 nonzeros Presolve removed 1 rows and 14 columns Presolve time: 0.01s Presolved: 1486 rows, 914 columns, 5096 nonzeros Variable types: 0 continuous, 914 integer (914 binary) Root relaxation: objective 0.000000e+00, 123 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 (210 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 -- 14 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:12 2012 Optimize a model with 773 rows, 515 columns and 2555 nonzeros Presolve removed 1 rows and 7 columns Presolve time: 0.00s Presolved: 772 rows, 508 columns, 2548 nonzeros Variable types: 0 continuous, 508 integer (508 binary) Root relaxation: objective 0.000000e+00, 139 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 (210 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 -- 7 Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:12 2012 Optimize a model with 365 rows, 279 columns and 1095 nonzeros Presolve removed 1 rows and 3 columns Presolve time: 0.00s Presolved: 364 rows, 276 columns, 1092 nonzeros Variable types: 0 continuous, 276 integer (276 binary) Root relaxation: objective 0.000000e+00, 146 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 17 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (287 simplex iterations) in 0.00 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 Fri Dec 14 18:20:12 2012 Optimize a model with 161 rows, 161 columns and 365 nonzeros Presolve removed 161 rows and 161 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 Fri Dec 14 18:20:12 2012 Optimize a model with 263 rows, 220 columns and 730 nonzeros Presolve removed 59 rows and 60 columns Presolve time: 0.00s Presolved: 204 rows, 160 columns, 612 nonzeros Variable types: 0 continuous, 160 integer (160 binary) Root relaxation: objective 0.000000e+00, 59 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 58 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (211 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 - optimal solution found: number of colors: 3