
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:34:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5581.45.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/grafo5581.45.lp
Reading time = 0.26 seconds
: 163556 rows, 3019 columns, 493467 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 163556 rows, 3019 columns and 493467 nonzeros
Model fingerprint: 0x1fab6f73
Variable types: 56 continuous, 2963 integer (2963 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, 6e+01]
Presolve removed 48003 rows and 26 columns
Presolve time: 1.13s
Presolved: 115553 rows, 2993 columns, 350022 nonzeros
Variable types: 0 continuous, 2993 integer (2937 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2990 rows, 118543 columns, 353015 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16494    6.9795744e+01   0.000000e+00   1.462617e+05      5s
   33339    6.6715816e+01   0.000000e+00   5.055868e+04     10s
   50188    6.6682289e+01   0.000000e+00   5.053480e+04     15s
   67985    6.6666747e+01   0.000000e+00   2.009972e+04     20s
   85301    6.6659440e+01   0.000000e+00   2.325150e+03     25s
  103098    6.6656377e+01   0.000000e+00   1.231102e+03     30s
  107542    6.7000000e+01   0.000000e+00   0.000000e+00     31s
  107542    6.7000000e+01   0.000000e+00   0.000000e+00     31s
  107542    6.7000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 6.700000e+01, 107542 iterations, 30.09 seconds (22.68 work units)

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

     0     0   67.00000    0 1781   13.00000   67.00000   415%     -   50s

Explored 1 nodes (116670 simplex iterations) in 50.05 seconds (41.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 13 

Time limit reached
Best objective 1.300000000000e+01, best bound 6.700000000000e+01, gap 415.3846%

Wrote result file './lp_solutions/grafo5581.45.sol'

