
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:58:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4964.49.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/grafo4964.49.lp
Reading time = 0.44 seconds
: 218903 rows, 3260 columns, 659672 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 218903 rows, 3260 columns and 659672 nonzeros
Model fingerprint: 0xaea05a37
Variable types: 56 continuous, 3204 integer (3204 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 70965 rows and 24 columns
Presolve time: 2.07s
Presolved: 147938 rows, 3236 columns, 447365 nonzeros
Variable types: 0 continuous, 3236 integer (3180 binary)
Root relaxation presolved: 3236 rows, 151174 columns, 450601 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11212    5.7080878e+01   0.000000e+00   9.388439e+05      5s
   24993    5.4968067e+01   0.000000e+00   5.343316e+04     10s
   38228    5.4945601e+01   0.000000e+00   1.086746e+05     15s
   49798    5.4937189e+01   0.000000e+00   3.508365e+04     20s
   62511    5.4931443e+01   0.000000e+00   1.710245e+04     25s
   74066    5.4928723e+01   0.000000e+00   6.422801e+03     30s
   85809    5.4927656e+01   0.000000e+00   5.970627e+02     35s
   94398    5.5000000e+01   0.000000e+00   0.000000e+00     39s
   94398    5.5000000e+01   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 5.500000e+01, 94398 iterations, 36.60 seconds (27.35 work units)

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

     0     0   55.00000    0 1965          -   55.00000      -     -   50s
H    0     0                       8.0000000   55.00000   588%     -   50s

Explored 1 nodes (98298 simplex iterations) in 50.12 seconds (38.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.500000000000e+01, gap 587.5000%

Wrote result file './lp_solutions/grafo4964.49.sol'

