
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:06:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6653.49.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/grafo6653.49.lp
Reading time = 0.75 seconds
: 379595 rows, 3358 columns, 1141894 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 379595 rows, 3358 columns and 1141894 nonzeros
Model fingerprint: 0xe727eea3
Variable types: 58 continuous, 3300 integer (3300 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 150025 rows and 29 columns
Presolve time: 3.65s
Presolved: 229570 rows, 3329 columns, 692221 nonzeros
Variable types: 0 continuous, 3329 integer (3271 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3323 rows, 232893 columns, 695550 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    8.0242000e+02   0.000000e+00   1.216231e+06      5s
   19154    8.6193022e+01   0.000000e+00   5.532788e+05     10s
   32683    6.5944231e+01   0.000000e+00   3.602274e+05     15s
   45264    5.7852797e+01   0.000000e+00   3.568265e+05     20s
   57923    5.6778744e+01   0.000000e+00   6.582671e+04     25s
   70489    5.6736653e+01   0.000000e+00   2.438364e+04     30s
   82150    5.6716111e+01   0.000000e+00   3.859729e+04     35s
   93811    5.6703916e+01   0.000000e+00   1.432057e+04     40s
  105472    5.6696237e+01   0.000000e+00   3.445900e+04     45s

Root relaxation: time limit, 116105 iterations, 45.63 seconds (26.76 work units)

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

     0     0          -    0         8.00000  334.00000  4075%     -   50s

Explored 1 nodes (116105 simplex iterations) in 50.03 seconds (30.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.340000000000e+02, gap 4075.0000%

Wrote result file './lp_solutions/grafo6653.49.sol'

