
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:34:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7075.45.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/grafo7075.45.lp
Reading time = 0.39 seconds
: 206308 rows, 3211 columns, 622117 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 206308 rows, 3211 columns and 622117 nonzeros
Model fingerprint: 0xaf0f028e
Variable types: 58 continuous, 3153 integer (3153 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 63096 rows and 29 columns
Presolve time: 1.90s
Presolved: 143212 rows, 3182 columns, 433457 nonzeros
Variable types: 0 continuous, 3182 integer (3124 binary)
Root relaxation presolved: 3182 rows, 146394 columns, 436639 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12486    6.4781125e+01   0.000000e+00   9.900816e+05      5s
   27570    5.4912871e+01   0.000000e+00   8.802567e+04     10s
   40112    5.4884701e+01   0.000000e+00   9.062881e+04     15s
   52100    5.4872041e+01   0.000000e+00   1.637739e+05     20s
   63525    5.4864200e+01   0.000000e+00   2.239699e+04     25s
   75087    5.4859320e+01   0.000000e+00   4.834567e+03     30s
   86267    5.4856246e+01   0.000000e+00   1.438755e+04     35s
   98020    5.4854543e+01   0.000000e+00   3.257339e+03     40s
  110087    5.4853654e+01   0.000000e+00   7.891153e+03     45s

Root relaxation: time limit, 0 iterations, 47.69 seconds (32.36 work units)

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

H    0     0                       4.0000000  372.00000  9200%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.02 seconds (34.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 3.720000000000e+02, gap 9200.0000%

Wrote result file './lp_solutions/grafo7075.45.sol'

