
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:00:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5339.43.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/grafo5339.43.lp
Reading time = 0.20 seconds
: 123741 rows, 2407 columns, 373226 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 123741 rows, 2407 columns and 373226 nonzeros
Model fingerprint: 0xafbf7111
Variable types: 48 continuous, 2359 integer (2359 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 2.0000000
Presolve removed 35764 rows and 27 columns
Presolve time: 0.87s
Presolved: 87977 rows, 2380 columns, 266367 nonzeros
Variable types: 0 continuous, 2380 integer (2332 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 2374 rows, 90351 columns, 268747 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24179    4.3819349e+01   0.000000e+00   4.754759e+04      5s
   49114    4.2744045e+01   0.000000e+00   5.927553e+03     10s
   74002    4.2733169e+01   0.000000e+00   2.747768e+03     15s
   79242    4.3000000e+01   0.000000e+00   0.000000e+00     16s
   79242    4.3000000e+01   0.000000e+00   0.000000e+00     16s
   79242    4.3000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.300000e+01, 79242 iterations, 15.18 seconds (11.63 work units)
Total elapsed time = 26.23s (DegenMoves)

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

     0     0   43.00000    0  551   14.00000   43.00000   207%     -   30s
H    0     0                      15.0000000   43.00000   187%     -   30s
     0     0   43.00000    0  855   15.00000   43.00000   187%     -   44s
     0     0   43.00000    0  806   15.00000   43.00000   187%     -   46s

Cutting planes:
  Gomory: 2
  Lift-and-project: 21
  Cover: 16
  Clique: 24
  MIR: 98
  GUB cover: 1
  Zero half: 49
  RLT: 26
  BQP: 3

Explored 1 nodes (102908 simplex iterations) in 50.09 seconds (51.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 14 2 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.300000000000e+01, gap 186.6667%

Wrote result file './lp_solutions/grafo5339.43.sol'

