
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:49:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5765.44.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/grafo5765.44.lp
Reading time = 0.26 seconds
: 142305 rows, 2791 columns, 429430 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 142305 rows, 2791 columns and 429430 nonzeros
Model fingerprint: 0x61f6783f
Variable types: 53 continuous, 2738 integer (2738 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 38137 rows and 23 columns
Presolve time: 1.22s
Presolved: 104168 rows, 2768 columns, 315553 nonzeros
Variable types: 0 continuous, 2768 integer (2715 binary)
Root relaxation presolved: 2765 rows, 106933 columns, 318321 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14505    5.7941406e+01   0.000000e+00   1.809782e+05      5s
   30515    5.4859282e+01   0.000000e+00   6.497498e+04     10s
   45635    5.4841407e+01   0.000000e+00   6.026721e+04     15s
   60755    5.4835776e+01   0.000000e+00   1.486658e+03     20s
   75011    5.4834327e+01   0.000000e+00   3.365220e+01     25s
   76959    5.5000000e+01   0.000000e+00   0.000000e+00     26s
   76959    5.5000000e+01   0.000000e+00   0.000000e+00     26s
   76959    5.5000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 5.500000e+01, 76959 iterations, 24.50 seconds (14.63 work units)

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

     0     0   55.00000    0 1699          -   55.00000      -     -   50s
H    0     0                       3.0000000   55.00000  1733%     -   50s

Explored 1 nodes (87568 simplex iterations) in 50.06 seconds (35.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.500000000000e+01, gap 1733.3333%

Wrote result file './lp_solutions/grafo5765.44.sol'

