
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:54:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6188.44.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/grafo6188.44.lp
Reading time = 0.81 seconds
: 405617 rows, 3525 columns, 1220563 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 405617 rows, 3525 columns and 1220563 nonzeros
Model fingerprint: 0x6dce0961
Variable types: 63 continuous, 3462 integer (3462 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]
Found heuristic solution: objective 2.0000000
Presolve removed 162266 rows and 15 columns
Presolve time: 3.51s
Presolved: 243351 rows, 3510 columns, 734190 nonzeros
Variable types: 0 continuous, 3510 integer (3447 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3498 rows, 246849 columns, 737700 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.0620000e+02   0.000000e+00   7.537265e+05      5s
   19907    1.2884510e+02   0.000000e+00   1.754170e+06     10s
   30882    1.1021081e+02   0.000000e+00   9.073729e+05     15s
   42177    9.1866973e+01   0.000000e+00   4.528408e+06     20s
   52243    8.3789603e+01   0.000000e+00   6.903770e+05     25s
   62723    7.1729223e+01   0.000000e+00   3.230145e+05     30s
   73547    7.1684010e+01   0.000000e+00   6.080517e+05     35s
   83728    6.9646937e+01   0.000000e+00   2.272052e+05     40s
   94774    6.9621620e+01   0.000000e+00   3.936960e+05     45s

Root relaxation: time limit, 105046 iterations, 46.01 seconds (26.69 work units)

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

     0     0          -    0         9.00000  407.00000  4422%     -   50s

Explored 1 nodes (105046 simplex iterations) in 50.04 seconds (30.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.070000000000e+02, gap 4422.2222%

Wrote result file './lp_solutions/grafo6188.44.sol'

