
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:30:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10069.40.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/grafo10069.40.lp
Reading time = 0.62 seconds
: 97741 rows, 2384 columns, 295392 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 97741 rows, 2384 columns and 295392 nonzeros
Model fingerprint: 0x6ba2c131
Variable types: 49 continuous, 2335 integer (2335 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 23743 rows and 29 columns
Presolve time: 1.61s
Presolved: 73998 rows, 2355 columns, 224576 nonzeros
Variable types: 0 continuous, 2355 integer (2306 binary)
Root relaxation presolved: 2355 rows, 76353 columns, 226931 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6274    6.0902212e+01   0.000000e+00   5.273922e+05      5s
   16556    5.5799304e+01   0.000000e+00   3.102616e+04     10s
   28436    5.5778569e+01   0.000000e+00   1.292383e+04     15s
   38320    5.6000000e+01   0.000000e+00   0.000000e+00     19s
   38320    5.6000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.600000e+01, 38320 iterations, 17.36 seconds (6.09 work units)
Total elapsed time = 36.52s (DegenMoves)

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

     0     0   56.00000    0  490          -   56.00000      -     -   39s
H    0     0                      12.0000000   56.00000   367%     -   43s
H    0     0                      13.0000000   56.00000   331%     -   43s
H    0     0                      15.0000000   56.00000   273%     -   43s
     0     0          -    0        15.00000   56.00000   273%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 46
  Clique: 21
  MIR: 245
  GUB cover: 9
  Zero half: 65
  RLT: 72
  BQP: 4

Explored 1 nodes (50403 simplex iterations) in 50.61 seconds (18.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 13 12 

Time limit reached
Best objective 1.500000000000e+01, best bound 5.600000000000e+01, gap 273.3333%

Wrote result file './lp_solutions/grafo10069.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:48:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10069.40.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/grafo10069.40.lp
Reading time = 0.16 seconds
: 97741 rows, 2384 columns, 295392 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 97741 rows, 2384 columns and 295392 nonzeros
Model fingerprint: 0x6ba2c131
Variable types: 49 continuous, 2335 integer (2335 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 23743 rows and 29 columns
Presolve time: 0.63s
Presolved: 73998 rows, 2355 columns, 224576 nonzeros
Variable types: 0 continuous, 2355 integer (2306 binary)
Root relaxation presolved: 2355 rows, 76353 columns, 226931 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23156    5.5783738e+01   0.000000e+00   1.306147e+04      5s
   38320    5.6000000e+01   0.000000e+00   0.000000e+00      8s
   38320    5.6000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 5.600000e+01, 38320 iterations, 7.42 seconds (6.09 work units)
Total elapsed time = 15.96s (DegenMoves)

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

     0     0   56.00000    0  490          -   56.00000      -     -   17s
H    0     0                      12.0000000   56.00000   367%     -   18s
H    0     0                      13.0000000   56.00000   331%     -   18s
H    0     0                      15.0000000   56.00000   273%     -   18s
     0     0   56.00000    0  806   15.00000   56.00000   273%     -   26s
H    0     0                      16.0000000   56.00000   250%     -   27s
     0     0   56.00000    0  785   16.00000   56.00000   250%     -   27s
     0     0   56.00000    0  472   16.00000   56.00000   250%     -   48s
     0     0   56.00000    0  452   16.00000   56.00000   250%     -   49s

Cutting planes:
  Cover: 50
  Clique: 12
  MIR: 207
  StrongCG: 3
  GUB cover: 7
  Zero half: 1
  RLT: 16
  PSD: 2

Explored 1 nodes (70160 simplex iterations) in 50.10 seconds (43.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 16 15 13 12 

Time limit reached
Best objective 1.600000000000e+01, best bound 5.600000000000e+01, gap 250.0000%

Wrote result file './lp_solutions/grafo10069.40.sol'

