
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:47:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4945.50.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/grafo4945.50.lp
Reading time = 0.31 seconds
: 186338 rows, 3551 columns, 562271 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 186338 rows, 3551 columns and 562271 nonzeros
Model fingerprint: 0xaf15080e
Variable types: 60 continuous, 3491 integer (3491 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 44954 rows and 3 columns
Presolve time: 1.29s
Presolved: 141384 rows, 3548 columns, 428068 nonzeros
Variable types: 0 continuous, 3548 integer (3488 binary)
Root relaxation presolved: 3518 rows, 144902 columns, 431616 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14008    7.8841711e+01   0.000000e+00   2.607511e+05      5s
   28160    6.8651801e+01   0.000000e+00   2.524300e+05     10s
   42200    6.8595395e+01   0.000000e+00   1.949433e+04     15s
   55720    6.8578165e+01   0.000000e+00   1.122852e+04     20s
   68200    6.8572771e+01   0.000000e+00   7.689954e+02     25s
   77943    6.9000000e+01   0.000000e+00   0.000000e+00     29s
   77943    6.9000000e+01   0.000000e+00   0.000000e+00     29s
   77943    6.9000000e+01   0.000000e+00   0.000000e+00     29s

Root relaxation: objective 6.900000e+01, 77943 iterations, 27.52 seconds (20.19 work units)

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

     0     0   69.00000    0 1539          -   69.00000      -     -   50s
H    0     0                       5.0000000   69.00000  1280%     -   50s

Explored 1 nodes (86211 simplex iterations) in 50.07 seconds (40.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.900000000000e+01, gap 1280.0000%

Wrote result file './lp_solutions/grafo4945.50.sol'

