
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:31:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7389.42.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/grafo7389.42.lp
Reading time = 0.51 seconds
: 320129 rows, 3124 columns, 963529 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 320129 rows, 3124 columns and 963529 nonzeros
Model fingerprint: 0x2bf71157
Variable types: 58 continuous, 3066 integer (3066 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 1.0000000
Presolve removed 128065 rows and 21 columns
Presolve time: 2.23s
Presolved: 192064 rows, 3103 columns, 579868 nonzeros
Variable types: 0 continuous, 3103 integer (3045 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3091 rows, 195155 columns, 582971 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13028    1.1704560e+02   0.000000e+00   4.566694e+06      5s
   32241    6.8936593e+01   0.000000e+00   1.782233e+05     10s
   48650    6.3887625e+01   0.000000e+00   6.468604e+04     15s
   65944    6.3870241e+01   0.000000e+00   8.262598e+04     20s
   83514    6.3860241e+01   0.000000e+00   1.378407e+04     25s
  103122    6.3853159e+01   0.000000e+00   2.999168e+04     30s
  120952    6.3848800e+01   0.000000e+00   1.131711e+04     35s
  140622    6.3845756e+01   0.000000e+00   3.254326e+04     40s
  160296    6.3843652e+01   0.000000e+00   1.815036e+03     45s

Root relaxation: time limit, 178242 iterations, 47.50 seconds (40.89 work units)

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

     0     0          -    0         9.00000  403.00000  4378%     -   50s

Explored 1 nodes (178242 simplex iterations) in 50.02 seconds (43.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.030000000000e+02, gap 4377.7778%

Wrote result file './lp_solutions/grafo7389.42.sol'

