
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:21:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6775.50.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/grafo6775.50.lp
Reading time = 0.67 seconds
: 350760 rows, 3372 columns, 1055347 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 350760 rows, 3372 columns and 1055347 nonzeros
Model fingerprint: 0x92362597
Variable types: 57 continuous, 3315 integer (3315 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 142699 rows and 30 columns
Presolve time: 3.45s
Presolved: 208061 rows, 3342 columns, 627828 nonzeros
Variable types: 0 continuous, 3342 integer (3285 binary)
Root relaxation presolved: 3342 rows, 211403 columns, 631170 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    6.9838000e+02   0.000000e+00   7.036214e+05      5s
   21613    7.5461382e+01   0.000000e+00   1.400113e+06     10s
   34776    5.6694723e+01   0.000000e+00   1.874729e+05     15s
   45666    5.5641236e+01   0.000000e+00   2.343167e+06     20s
   56335    5.5604419e+01   0.000000e+00   5.212279e+04     25s
   68620    5.5579072e+01   0.000000e+00   2.698922e+04     30s
   80086    5.5564025e+01   0.000000e+00   8.934476e+04     35s
   92371    5.5554180e+01   0.000000e+00   1.048138e+04     40s
  103837    5.5547799e+01   0.000000e+00   8.375580e+03     45s

Root relaxation: time limit, 0 iterations, 45.91 seconds (25.67 work units)

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

H    0     0                       4.0000000  358.00000  8850%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.09 seconds (28.81 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 3.580000000000e+02, gap 8850.0000%

Wrote result file './lp_solutions/grafo6775.50.sol'

