
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:19:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5320.45.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/grafo5320.45.lp
Reading time = 0.15 seconds
: 75099 rows, 2200 columns, 226909 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 75099 rows, 2200 columns and 226909 nonzeros
Model fingerprint: 0x77449391
Variable types: 43 continuous, 2157 integer (2157 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 13823 rows and 24 columns
Presolve time: 0.65s
Presolved: 61276 rows, 2176 columns, 185900 nonzeros
Variable types: 0 continuous, 2176 integer (2133 binary)
Root relaxation presolved: 2176 rows, 63452 columns, 188076 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21902    3.3940305e+01   0.000000e+00   3.260161e+03      5s
   36253    3.4000000e+01   0.000000e+00   0.000000e+00      8s
   36253    3.4000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.400000e+01, 36253 iterations, 7.69 seconds (4.84 work units)
Total elapsed time = 20.11s (DegenMoves)

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

     0     0   34.00000    0  647          -   34.00000      -     -   23s
H    0     0                       6.0000000   34.00000   467%     -   28s
     0     0   34.00000    0  718    6.00000   34.00000   467%     -   40s
H    0     0                      11.0000000   34.00000   209%     -   40s
     0     0   34.00000    0  686   11.00000   34.00000   209%     -   41s
     0     0          -    0        11.00000   34.00000   209%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 31
  Cover: 5
  Clique: 8
  MIR: 72
  Zero half: 28
  RLT: 61
  BQP: 4
  PSD: 2

Explored 1 nodes (59641 simplex iterations) in 50.10 seconds (32.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 6 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.400000000000e+01, gap 209.0909%

Wrote result file './lp_solutions/grafo5320.45.sol'

