
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:21:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1710.40.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo1710.40.lp
Reading time = 0.10 seconds
: 44800 rows, 1726 columns, 135593 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 44800 rows, 1726 columns and 135593 nonzeros
Model fingerprint: 0x1901a21a
Variable types: 39 continuous, 1687 integer (1687 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 4175 rows and 34 columns
Presolve time: 0.46s
Presolved: 40625 rows, 1692 columns, 123414 nonzeros
Variable types: 0 continuous, 1692 integer (1653 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 21606 rows, 20711 columns, 85376 nonzeros


Root relaxation: objective 2.900000e+01, 2658 iterations, 1.48 seconds (0.87 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   29.00000    0  380    5.00000   29.00000   480%     -    4s
H    0     0                       6.0000000   29.00000   383%     -    4s
H    0     0                       7.0000000   29.00000   314%     -    4s
     0     0   29.00000    0  611    7.00000   29.00000   314%     -   12s
H    0     0                       8.0000000   29.00000   262%     -   12s
     0     0   29.00000    0  602    8.00000   29.00000   262%     -   13s
     0     0   29.00000    0  312    8.00000   29.00000   262%     -   24s
     0     0   29.00000    0  355    8.00000   29.00000   262%     -   24s
     0     0   29.00000    0  333    8.00000   29.00000   262%     -   28s
     0     0   29.00000    0  310    8.00000   29.00000   262%     -   29s
H    0     0                       9.0000000   29.00000   222%     -   37s
     0     0   29.00000    0  381    9.00000   29.00000   222%     -   37s
     0     0   29.00000    0  369    9.00000   29.00000   222%     -   38s
     0     0   29.00000    0  349    9.00000   29.00000   222%     -   48s
     0     0          -    0         9.00000   29.00000   222%     -   50s

Cutting planes:
  Cover: 2
  Clique: 3
  MIR: 44
  GUB cover: 2
  Zero half: 3
  RLT: 22
  PSD: 1

Explored 1 nodes (47663 simplex iterations) in 50.06 seconds (28.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... 5

Time limit reached
Best objective 9.000000000000e+00, best bound 2.900000000000e+01, gap 222.2222%

Wrote result file './lp_solutions/grafo1710.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:56:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1710.40.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo1710.40.lp
Reading time = 0.07 seconds
: 44800 rows, 1726 columns, 135593 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 44800 rows, 1726 columns and 135593 nonzeros
Model fingerprint: 0x1901a21a
Variable types: 39 continuous, 1687 integer (1687 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 4175 rows and 34 columns
Presolve time: 0.29s
Presolved: 40625 rows, 1692 columns, 123414 nonzeros
Variable types: 0 continuous, 1692 integer (1653 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 21606 rows, 20711 columns, 85376 nonzeros


Root relaxation: objective 2.900000e+01, 2658 iterations, 0.94 seconds (0.87 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   29.00000    0  380    5.00000   29.00000   480%     -    2s
H    0     0                       6.0000000   29.00000   383%     -    3s
H    0     0                       7.0000000   29.00000   314%     -    3s
     0     0   29.00000    0  611    7.00000   29.00000   314%     -    8s
H    0     0                       8.0000000   29.00000   262%     -    8s
     0     0   29.00000    0  602    8.00000   29.00000   262%     -    8s
     0     0   29.00000    0  312    8.00000   29.00000   262%     -   16s
     0     0   29.00000    0  355    8.00000   29.00000   262%     -   16s
     0     0   29.00000    0  333    8.00000   29.00000   262%     -   19s
     0     0   29.00000    0  310    8.00000   29.00000   262%     -   19s
H    0     0                       9.0000000   29.00000   222%     -   25s
     0     0   29.00000    0  381    9.00000   29.00000   222%     -   25s
     0     0   29.00000    0  369    9.00000   29.00000   222%     -   25s
     0     0   29.00000    0  349    9.00000   29.00000   222%     -   32s
     0     0   29.00000    0  395    9.00000   29.00000   222%     -   33s
H    0     0                      11.0000000   29.00000   164%     -   37s
H    0     0                      12.0000000   29.00000   142%     -   37s
     0     0   29.00000    0  367   12.00000   29.00000   142%     -   37s
     0     0   29.00000    0  323   12.00000   29.00000   142%     -   38s
     0     0   29.00000    0  380   12.00000   29.00000   142%     -   42s
     0     0   29.00000    0  266   12.00000   29.00000   142%     -   43s
     0     2   29.00000    0  240   12.00000   29.00000   142%     -   48s
    23    27   29.00000    6  209   12.00000   29.00000   142%   382   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 2
  Clique: 3
  MIR: 128
  GUB cover: 1
  Zero half: 9
  RLT: 40
  PSD: 1

Explored 26 nodes (74631 simplex iterations) in 50.05 seconds (46.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 12 11 9 ... 5

Time limit reached
Best objective 1.200000000000e+01, best bound 2.900000000000e+01, gap 141.6667%

Wrote result file './lp_solutions/grafo1710.40.sol'

