
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:11:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5160.42.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/grafo5160.42.lp
Reading time = 0.21 seconds
: 111077 rows, 2513 columns, 335527 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 111077 rows, 2513 columns and 335527 nonzeros
Model fingerprint: 0xe108357c
Variable types: 51 continuous, 2462 integer (2462 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 25448 rows and 48 columns
Presolve time: 1.02s
Presolved: 85629 rows, 2465 columns, 259651 nonzeros
Variable types: 0 continuous, 2465 integer (2414 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2465 rows, 88094 columns, 262116 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18083    3.7933423e+01   0.000000e+00   1.309256e+05      5s
   36039    3.7917043e+01   0.000000e+00   1.473231e+03     10s
   49560    3.8000000e+01   0.000000e+00   0.000000e+00     14s
   49560    3.8000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 3.800000e+01, 49560 iterations, 12.95 seconds (8.17 work units)
Total elapsed time = 28.06s (DegenMoves)
Total elapsed time = 31.01s (DegenMoves)

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

     0     0   38.00000    0  417    9.00000   38.00000   322%     -   34s
H    0     0                      12.0000000   38.00000   217%     -   34s
     0     0   38.00000    0  756   12.00000   38.00000   217%     -   47s
     0     0          -    0        12.00000   38.00000   217%     -   50s

Cutting planes:
  Gomory: 2
  Clique: 10
  MIR: 47
  Zero half: 7
  RLT: 20
  BQP: 1

Explored 1 nodes (72280 simplex iterations) in 50.02 seconds (41.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.800000000000e+01, gap 216.6667%

Wrote result file './lp_solutions/grafo5160.42.sol'

