
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:34:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3806.47.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/grafo3806.47.lp
Reading time = 0.15 seconds
: 67204 rows, 2103 columns, 202923 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 67204 rows, 2103 columns and 202923 nonzeros
Model fingerprint: 0x18ba29a0
Variable types: 40 continuous, 2063 integer (2063 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 8873 rows and 19 columns
Presolve time: 0.65s
Presolved: 58331 rows, 2084 columns, 176515 nonzeros
Variable types: 0 continuous, 2084 integer (2044 binary)
Root relaxation presolved: 2084 rows, 60415 columns, 178599 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21272    3.8971051e+01   0.000000e+00   7.243985e+02      5s
   25056    3.9000000e+01   0.000000e+00   0.000000e+00      6s
   25056    3.9000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.900000e+01, 25056 iterations, 5.04 seconds (3.05 work units)
Total elapsed time = 10.06s (DegenMoves)

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

     0     0   39.00000    0  386          -   39.00000      -     -   10s
H    0     0                       8.0000000   39.00000   388%     -   10s
H    0     0                      10.0000000   39.00000   290%     -   10s
H    0     0                      12.0000000   39.00000   225%     -   13s
     0     0   39.00000    0  570   12.00000   39.00000   225%     -   18s
H    0     0                      13.0000000   39.00000   200%     -   19s
     0     0   39.00000    0  562   13.00000   39.00000   200%     -   20s
H    0     0                      14.0000000   39.00000   179%     -   42s
H    0     0                      15.0000000   39.00000   160%     -   42s
     0     0   39.00000    0  344   15.00000   39.00000   160%     -   42s
     0     0   39.00000    0  332   15.00000   39.00000   160%     -   43s
     0     0   39.00000    0  451   15.00000   39.00000   160%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 13
  Clique: 5
  MIR: 126
  StrongCG: 1
  GUB cover: 1
  Zero half: 33
  RLT: 72
  BQP: 1

Explored 1 nodes (53961 simplex iterations) in 50.09 seconds (30.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 8

Time limit reached
Best objective 1.500000000000e+01, best bound 3.900000000000e+01, gap 160.0000%

Wrote result file './lp_solutions/grafo3806.47.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:13:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3806.47.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/grafo3806.47.lp
Reading time = 0.11 seconds
: 67204 rows, 2103 columns, 202923 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 67204 rows, 2103 columns and 202923 nonzeros
Model fingerprint: 0x18ba29a0
Variable types: 40 continuous, 2063 integer (2063 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 8873 rows and 19 columns
Presolve time: 0.40s
Presolved: 58331 rows, 2084 columns, 176515 nonzeros
Variable types: 0 continuous, 2084 integer (2044 binary)
Root relaxation presolved: 2084 rows, 60415 columns, 178599 nonzeros


Root relaxation: objective 3.900000e+01, 25056 iterations, 3.38 seconds (3.05 work units)
Total elapsed time = 6.92s (DegenMoves)

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

     0     0   39.00000    0  386          -   39.00000      -     -    7s
H    0     0                       8.0000000   39.00000   388%     -    7s
H    0     0                      10.0000000   39.00000   290%     -    7s
H    0     0                      12.0000000   39.00000   225%     -    8s
     0     0   39.00000    0  570   12.00000   39.00000   225%     -   12s
H    0     0                      13.0000000   39.00000   200%     -   12s
     0     0   39.00000    0  562   13.00000   39.00000   200%     -   13s
H    0     0                      14.0000000   39.00000   179%     -   28s
H    0     0                      15.0000000   39.00000   160%     -   28s
     0     0   39.00000    0  344   15.00000   39.00000   160%     -   28s
     0     0   39.00000    0  332   15.00000   39.00000   160%     -   28s
     0     0   38.66667    0  290   15.00000   38.66667   158%     -   36s
     0     0   38.66667    0  297   15.00000   38.66667   158%     -   36s
H    0     0                      16.0000000   38.66667   142%     -   42s
     0     0   38.66667    0  448   16.00000   38.66667   142%     -   42s
     0     0   38.66667    0  424   16.00000   38.66667   142%     -   43s
     0     0   38.66667    0  360   16.00000   38.66667   142%     -   50s

Cutting planes:
  Cover: 1
  Clique: 10
  MIR: 28
  StrongCG: 1
  Zero half: 2
  RLT: 23
  BQP: 2

Explored 1 nodes (74988 simplex iterations) in 50.11 seconds (45.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 16 15 14 ... 8

Time limit reached
Best objective 1.600000000000e+01, best bound 3.800000000000e+01, gap 137.5000%

Wrote result file './lp_solutions/grafo3806.47.sol'

