
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:25:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6739.46.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/grafo6739.46.lp
Reading time = 0.53 seconds
: 305548 rows, 3414 columns, 919959 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 305548 rows, 3414 columns and 919959 nonzeros
Model fingerprint: 0x26c2e1c3
Variable types: 60 continuous, 3354 integer (3354 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 114273 rows and 24 columns
Presolve time: 2.43s
Presolved: 191275 rows, 3390 columns, 577551 nonzeros
Variable types: 0 continuous, 3390 integer (3330 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 3384 rows, 194659 columns, 580941 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10848    1.6493966e+02   0.000000e+00   1.200123e+06      5s
   27318    9.3664766e+01   0.000000e+00   1.067562e+06     10s
   39793    8.4906328e+01   0.000000e+00   1.065446e+06     15s
   52300    7.4843529e+01   0.000000e+00   3.875366e+05     20s
   64945    7.4780479e+01   0.000000e+00   4.205928e+05     25s
   76802    7.4755955e+01   0.000000e+00   1.505471e+04     30s
   89399    7.4740896e+01   0.000000e+00   4.024888e+04     35s
   97550    7.4734500e+01   0.000000e+00   2.539209e+04     40s
  110147    7.4726952e+01   0.000000e+00   3.961078e+04     45s

Root relaxation: time limit, 121764 iterations, 47.26 seconds (29.87 work units)

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

     0     0          -    0        11.00000  394.00000  3482%     -   50s

Explored 1 nodes (121764 simplex iterations) in 50.03 seconds (32.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.940000000000e+02, gap 3481.8182%

Wrote result file './lp_solutions/grafo6739.46.sol'

