
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:30:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7261.42.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/grafo7261.42.lp
Reading time = 0.69 seconds
: 357270 rows, 3186 columns, 1075021 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 357270 rows, 3186 columns and 1075021 nonzeros
Model fingerprint: 0x58cd2fa1
Variable types: 59 continuous, 3127 integer (3127 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 -0.0000000
Presolve removed 145642 rows and 12 columns
Presolve time: 3.23s
Presolved: 211628 rows, 3174 columns, 638521 nonzeros
Variable types: 0 continuous, 3174 integer (3115 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3162 rows, 214790 columns, 641695 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    3776    2.5114547e+02   0.000000e+00   1.602448e+06      5s
   22096    1.2179028e+02   0.000000e+00   3.198500e+05     11s
   34928    9.6173063e+01   0.000000e+00   1.253363e+05     15s
   46994    8.0946285e+01   0.000000e+00   3.335293e+05     20s
   60081    7.9874832e+01   0.000000e+00   1.966955e+05     25s
   71732    7.6838287e+01   0.000000e+00   8.529403e+04     30s
   83892    7.6813526e+01   0.000000e+00   7.186176e+04     35s
   96446    7.6795535e+01   0.000000e+00   5.259859e+04     40s
  108154    7.6784807e+01   0.000000e+00   1.154543e+05     45s

Root relaxation: time limit, 119974 iterations, 46.41 seconds (28.56 work units)

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

     0     0          -    0         9.00000  402.00000  4367%     -   50s

Explored 1 nodes (119974 simplex iterations) in 50.04 seconds (31.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 -0 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.020000000000e+02, gap 4366.6667%

Wrote result file './lp_solutions/grafo7261.42.sol'

