
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:42:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7373.41.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/grafo7373.41.lp
Reading time = 0.42 seconds
: 226081 rows, 2780 columns, 680894 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 226081 rows, 2780 columns and 680894 nonzeros
Model fingerprint: 0x13f5f8da
Variable types: 54 continuous, 2726 integer (2726 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, 5e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 84913 rows and 10 columns
Presolve time: 1.85s
Presolved: 141168 rows, 2770 columns, 426479 nonzeros
Variable types: 0 continuous, 2770 integer (2716 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2756 rows, 143924 columns, 429249 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14011    1.1056890e+02   0.000000e+00   2.163911e+05      5s
   31358    7.2987352e+01   0.000000e+00   4.433203e+05     10s
   46645    6.6876706e+01   0.000000e+00   9.206547e+04     15s
   61364    6.6815234e+01   0.000000e+00   5.169750e+04     20s
   75440    6.6799293e+01   0.000000e+00   6.187401e+03     25s
   89516    6.6793883e+01   0.000000e+00   2.201461e+03     30s
   99539    6.7000000e+01   0.000000e+00   0.000000e+00     34s
   99539    6.7000000e+01   0.000000e+00   0.000000e+00     34s
   99539    6.7000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 6.700000e+01, 99539 iterations, 31.96 seconds (19.13 work units)

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

     0     0   67.00000    0 1561    6.00000   67.00000  1017%     -   50s

Explored 1 nodes (105651 simplex iterations) in 50.06 seconds (34.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 -0 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.700000000000e+01, gap 1016.6667%

Wrote result file './lp_solutions/grafo7373.41.sol'

