current bounds on the number of colors: 0 -- 82 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:29 2012 Optimize a model with 12669 rows, 3669 columns and 41123 nonzeros Presolve time: 0.07s Presolved: 12669 rows, 3669 columns, 41123 nonzeros Variable types: 0 continuous, 3669 integer (3669 binary) Root relaxation: objective 0.000000e+00, 221 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 (380 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 -- 41 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:29 2012 Optimize a model with 6222 rows, 1947 columns and 20060 nonzeros Presolve time: 0.02s Presolved: 6222 rows, 1947 columns, 20060 nonzeros Variable types: 0 continuous, 1947 integer (1947 binary) Root relaxation: objective 0.000000e+00, 170 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 (309 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 -- 20 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:29 2012 Optimize a model with 3152 rows, 1127 columns and 10030 nonzeros Presolve time: 0.01s Presolved: 3152 rows, 1127 columns, 10030 nonzeros Variable types: 0 continuous, 1127 integer (1127 binary) Root relaxation: objective 0.000000e+00, 179 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 (314 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 -- 10 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:29 2012 Optimize a model with 1617 rows, 717 columns and 5015 nonzeros Presolve time: 0.00s Presolved: 1617 rows, 717 columns, 5015 nonzeros Variable types: 0 continuous, 717 integer (717 binary) Root relaxation: objective 0.000000e+00, 190 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 (503 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 Thu Dec 13 19:40:29 2012 Optimize a model with 696 rows, 471 columns and 2006 nonzeros Presolve removed 82 rows and 82 columns Presolve time: 0.00s Presolved: 614 rows, 389 columns, 1842 nonzeros Variable types: 0 continuous, 389 integer (389 binary) Root relaxation: objective 0.000000e+00, 82 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 82 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (333 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 - current bounds on the number of colors: 2 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:29 2012 Optimize a model with 1003 rows, 553 columns and 3009 nonzeros Presolve time: 0.00s Presolved: 1003 rows, 553 columns, 3009 nonzeros Variable types: 0 continuous, 553 integer (553 binary) Root relaxation: objective 0.000000e+00, 179 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 0.00000 0 160 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (1559 simplex iterations) in 0.10 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: 3 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:29 2012 Optimize a model with 1310 rows, 635 columns and 4012 nonzeros Presolve time: 0.00s Presolved: 1310 rows, 635 columns, 4012 nonzeros Variable types: 0 continuous, 635 integer (635 binary) Root relaxation: objective 0.000000e+00, 201 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 0 160 - 0.00000 - - 0s 0 0 0.00000 0 157 - 0.00000 - - 0s 0 0 0.00000 0 156 - 0.00000 - - 0s 0 0 0.00000 0 212 - 0.00000 - - 0s * 0 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Zero half: 145 Explored 0 nodes (4052 simplex iterations) in 0.25 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: 4