
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:58:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5216.43.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/grafo5216.43.lp
Reading time = 0.17 seconds
: 106777 rows, 2558 columns, 322600 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 106777 rows, 2558 columns and 322600 nonzeros
Model fingerprint: 0x7ff59a70
Variable types: 51 continuous, 2507 integer (2507 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 23202 rows and 22 columns
Presolve time: 0.70s
Presolved: 83575 rows, 2536 columns, 253455 nonzeros
Variable types: 0 continuous, 2536 integer (2485 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2536 rows, 86111 columns, 255991 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21199    5.0685148e+01   0.000000e+00   1.014241e+05      5s
   43529    5.0656559e+01   0.000000e+00   5.057768e+02     10s
   50408    5.1000000e+01   0.000000e+00   0.000000e+00     12s
   50408    5.1000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.100000e+01, 50408 iterations, 10.84 seconds (9.08 work units)
Total elapsed time = 24.97s (DegenMoves)
Total elapsed time = 28.58s (DegenMoves)

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

     0     0   51.00000    0  659    9.00000   51.00000   467%     -   29s
H    0     0                      11.0000000   51.00000   364%     -   29s
     0     0   51.00000    0  849   11.00000   51.00000   364%     -   44s
     0     0   51.00000    0  834   11.00000   51.00000   364%     -   46s

Cutting planes:
  Gomory: 4
  Lift-and-project: 5
  Cover: 5
  Clique: 12
  MIR: 126
  Zero half: 65
  RLT: 24
  BQP: 1

Explored 1 nodes (76275 simplex iterations) in 50.33 seconds (47.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.100000000000e+01, gap 363.6364%

Wrote result file './lp_solutions/grafo5216.43.sol'

