
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:29:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3597.49.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/grafo3597.49.lp
Reading time = 0.28 seconds
: 167300 rows, 3058 columns, 504443 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 167300 rows, 3058 columns and 504443 nonzeros
Model fingerprint: 0x9e72dd78
Variable types: 54 continuous, 3004 integer (3004 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 1.0000000
Presolve removed 45457 rows and 36 columns
Presolve time: 1.38s
Presolved: 121843 rows, 3022 columns, 368640 nonzeros
Variable types: 0 continuous, 3022 integer (2968 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 3013 rows, 124856 columns, 371662 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15334    5.9825147e+01   0.000000e+00   1.566500e+05      5s
   31154    5.6710259e+01   0.000000e+00   6.986391e+04     10s
   47508    5.6666286e+01   0.000000e+00   5.594888e+04     15s
   62900    5.6651563e+01   0.000000e+00   1.525636e+04     20s
   77811    5.6645151e+01   0.000000e+00   3.310225e+03     25s
   92722    5.6642625e+01   0.000000e+00   5.158100e+02     30s
  101170    5.7000000e+01   0.000000e+00   0.000000e+00     33s
  101170    5.7000000e+01   0.000000e+00   0.000000e+00     33s
  101170    5.7000000e+01   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 5.700000e+01, 101170 iterations, 31.68 seconds (21.84 work units)

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

     0     0   57.00000    0 1755   11.00000   57.00000   418%     -   50s

Explored 1 nodes (108768 simplex iterations) in 50.04 seconds (38.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.700000000000e+01, gap 418.1818%

Wrote result file './lp_solutions/grafo3597.49.sol'

