
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:54:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1467.49.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/grafo1467.49.lp
Reading time = 0.41 seconds
: 215622 rows, 3200 columns, 649728 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 215622 rows, 3200 columns and 649728 nonzeros
Model fingerprint: 0x2c8950f9
Variable types: 55 continuous, 3145 integer (3145 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 81210 rows and 55 columns
Presolve time: 1.71s
Presolved: 134412 rows, 3145 columns, 406511 nonzeros
Variable types: 0 continuous, 3145 integer (3090 binary)
Root relaxation presolved: 3139 rows, 137551 columns, 409656 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10197    6.6362443e+01   0.000000e+00   4.998922e+05      5s
   22632    6.1952379e+01   0.000000e+00   1.065131e+05     10s
   35252    5.8929404e+01   0.000000e+00   7.918074e+04     15s
   49373    5.8915754e+01   0.000000e+00   4.457260e+04     20s
   61675    5.8908356e+01   0.000000e+00   1.617328e+04     25s
   73856    5.8903458e+01   0.000000e+00   2.934304e+04     30s
   87093    5.8899042e+01   0.000000e+00   1.350567e+04     35s
   99080    5.8896373e+01   0.000000e+00   4.556686e+03     40s
  110999    5.8894575e+01   0.000000e+00   7.299272e+03     45s

Root relaxation: time limit, 0 iterations, 47.83 seconds (32.39 work units)

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

H    0     0                       8.0000000  310.00000  3775%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.06 seconds (34.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.100000000000e+02, gap 3775.0000%

Wrote result file './lp_solutions/grafo1467.49.sol'

