
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:34:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7588.42.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/grafo7588.42.lp
Reading time = 0.80 seconds
: 387630 rows, 3254 columns, 1166242 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 387630 rows, 3254 columns and 1166242 nonzeros
Model fingerprint: 0xad8fcaa7
Variable types: 60 continuous, 3194 integer (3194 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 160368 rows and 25 columns
Presolve time: 3.70s
Presolved: 227262 rows, 3229 columns, 685632 nonzeros
Variable types: 0 continuous, 3229 integer (3169 binary)
Root relaxation presolved: 3226 rows, 230488 columns, 688861 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.1348000e+03   0.000000e+00   1.284193e+06      6s
   19994    1.3874155e+02   0.000000e+00   2.874548e+05     11s
   33238    1.0905724e+02   0.000000e+00   7.362763e+05     16s
   42009    9.5495652e+01   0.000000e+00   3.029102e+05     20s
   54116    8.1929802e+01   0.000000e+00   3.344906e+05     25s
   66302    7.9862483e+01   0.000000e+00   5.675887e+05     30s
   77873    7.0825440e+01   0.000000e+00   1.297924e+05     35s
   88361    6.9802426e+01   0.000000e+00   2.785861e+05     40s
   99723    6.9785798e+01   0.000000e+00   2.311439e+04     45s

Root relaxation: time limit, 0 iterations, 45.43 seconds (27.32 work units)

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

H    0     0                       2.0000000  407.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.07 seconds (30.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 4.070000000000e+02, gap 20250.0000%

Wrote result file './lp_solutions/grafo7588.42.sol'

