
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:07:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5181.39.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/grafo5181.39.lp
Reading time = 0.12 seconds
: 51129 rows, 1757 columns, 154609 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 51129 rows, 1757 columns and 154609 nonzeros
Model fingerprint: 0xdf27d6d7
Variable types: 39 continuous, 1718 integer (1718 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]
Found heuristic solution: objective 4.0000000
Presolve removed 8832 rows and 25 columns
Presolve time: 0.49s
Presolved: 42297 rows, 1732 columns, 128445 nonzeros
Variable types: 0 continuous, 1732 integer (1693 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 24019 rows, 20010 columns, 91889 nonzeros


Root relaxation: objective 4.200000e+01, 2942 iterations, 1.85 seconds (1.15 work units)
Total elapsed time = 5.96s (DegenMoves)

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

     0     0   42.00000    0  352   11.00000   42.00000   282%     -    6s
H    0     0                      12.0000000   42.00000   250%     -    6s
H    0     0                      14.0000000   42.00000   200%     -    7s
     0     0   42.00000    0  610   14.00000   42.00000   200%     -   12s
     0     0   42.00000    0  605   14.00000   42.00000   200%     -   12s
H    0     0                      15.0000000   42.00000   180%     -   15s
     0     0   42.00000    0  540   15.00000   42.00000   180%     -   27s
     0     0   42.00000    0  528   15.00000   42.00000   180%     -   29s
     0     0   42.00000    0  430   15.00000   42.00000   180%     -   41s
     0     0   42.00000    0  423   15.00000   42.00000   180%     -   42s
     0     0   42.00000    0  562   15.00000   42.00000   180%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 26
  Clique: 6
  MIR: 179
  StrongCG: 1
  GUB cover: 1
  Zero half: 61
  RLT: 63
  BQP: 1

Explored 1 nodes (45698 simplex iterations) in 50.07 seconds (31.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 12 ... 4

Time limit reached
Best objective 1.500000000000e+01, best bound 4.200000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo5181.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:18:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5181.39.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/grafo5181.39.lp
Reading time = 0.08 seconds
: 51129 rows, 1757 columns, 154609 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 51129 rows, 1757 columns and 154609 nonzeros
Model fingerprint: 0xdf27d6d7
Variable types: 39 continuous, 1718 integer (1718 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]
Found heuristic solution: objective 4.0000000
Presolve removed 8832 rows and 25 columns
Presolve time: 0.33s
Presolved: 42297 rows, 1732 columns, 128445 nonzeros
Variable types: 0 continuous, 1732 integer (1693 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 24019 rows, 20010 columns, 91889 nonzeros


Root relaxation: objective 4.200000e+01, 2942 iterations, 1.18 seconds (1.15 work units)

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

     0     0   42.00000    0  352   11.00000   42.00000   282%     -    4s
H    0     0                      12.0000000   42.00000   250%     -    4s
H    0     0                      14.0000000   42.00000   200%     -    5s
     0     0   42.00000    0  610   14.00000   42.00000   200%     -    8s
     0     0   42.00000    0  605   14.00000   42.00000   200%     -    8s
H    0     0                      15.0000000   42.00000   180%     -    9s
     0     0   42.00000    0  540   15.00000   42.00000   180%     -   18s
     0     0   42.00000    0  528   15.00000   42.00000   180%     -   19s
     0     0   42.00000    0  430   15.00000   42.00000   180%     -   28s
     0     0   42.00000    0  423   15.00000   42.00000   180%     -   28s
     0     0   42.00000    0  562   15.00000   42.00000   180%     -   36s
     0     0   42.00000    0  502   15.00000   42.00000   180%     -   36s
     0     0   42.00000    0  427   15.00000   42.00000   180%     -   46s
     0     0   42.00000    0  479   15.00000   42.00000   180%     -   47s
     0     0   42.00000    0  578   15.00000   42.00000   180%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 18
  Clique: 5
  MIR: 186
  StrongCG: 1
  GUB cover: 1
  Zero half: 44
  RLT: 65
  Relax-and-lift: 1

Explored 1 nodes (67622 simplex iterations) in 50.04 seconds (48.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 12 ... 4

Time limit reached
Best objective 1.500000000000e+01, best bound 4.200000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo5181.39.sol'

