
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:44:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3948.47.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/grafo3948.47.lp
Reading time = 0.30 seconds
: 182752 rows, 3498 columns, 551654 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 182752 rows, 3498 columns and 551654 nonzeros
Model fingerprint: 0x872bedcd
Variable types: 62 continuous, 3436 integer (3436 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 44635 rows and 1 columns
Presolve time: 1.21s
Presolved: 138117 rows, 3497 columns, 418405 nonzeros
Variable types: 0 continuous, 3497 integer (3435 binary)
Root relaxation presolved: 3446 rows, 141563 columns, 421902 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13436    6.7972890e+01   0.000000e+00   2.538572e+06      5s
   27292    6.7951112e+01   0.000000e+00   5.326842e+05     10s
   40788    6.7939650e+01   0.000000e+00   9.026320e+04     15s
   53564    6.7931387e+01   0.000000e+00   4.328965e+04     20s
   64276    6.7926253e+01   0.000000e+00   1.184795e+05     26s
   74006    6.7922302e+01   0.000000e+00   5.162447e+04     30s
   84027    6.7919182e+01   0.000000e+00   1.564391e+04     35s
   96452    6.7916008e+01   0.000000e+00   3.004748e+04     40s
  105931    6.7913681e+01   0.000000e+00   5.474810e+04     45s

Root relaxation: time limit, 0 iterations, 48.46 seconds (32.48 work units)

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

H    0     0                       2.0000000  314.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.03 seconds (33.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 3.140000000000e+02, gap 15600.0000%

Wrote result file './lp_solutions/grafo3948.47.sol'

