
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:56:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2710.41.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/grafo2710.41.lp
Reading time = 0.12 seconds
: 77960 rows, 2016 columns, 235390 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 77960 rows, 2016 columns and 235390 nonzeros
Model fingerprint: 0x7232c14d
Variable types: 42 continuous, 1974 integer (1974 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 19886 rows and 14 columns
Presolve time: 0.47s
Presolved: 58074 rows, 2002 columns, 176072 nonzeros
Variable types: 0 continuous, 2002 integer (1960 binary)
Root relaxation presolved: 2002 rows, 60076 columns, 178074 nonzeros


Root relaxation: objective 4.400000e+01, 28124 iterations, 4.31 seconds (3.52 work units)
Total elapsed time = 8.95s (DegenMoves)

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

     0     0   44.00000    0  392          -   44.00000      -     -   10s
H    0     0                       7.0000000   44.00000   529%     -   10s
H    0     0                       8.0000000   44.00000   450%     -   10s
H    0     0                      10.0000000   44.00000   340%     -   11s
H    0     0                      12.0000000   44.00000   267%     -   16s
     0     0   44.00000    0  651   12.00000   44.00000   267%     -   16s
     0     0   44.00000    0  630   12.00000   44.00000   267%     -   18s
H    0     0                      14.0000000   44.00000   214%     -   37s
H    0     0                      15.0000000   44.00000   193%     -   37s
     0     0   43.00000    0  537   15.00000   43.00000   187%     -   37s
     0     0   43.00000    0  538   15.00000   43.00000   187%     -   39s
     0     0   43.00000    0  749   15.00000   43.00000   187%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 40
  Clique: 16
  MIR: 164
  StrongCG: 1
  Zero half: 48
  RLT: 77

Explored 1 nodes (68992 simplex iterations) in 50.08 seconds (46.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 12 ... 7

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

Wrote result file './lp_solutions/grafo2710.41.sol'

