
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:27:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7677.43.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/grafo7677.43.lp
Reading time = 0.54 seconds
: 254970 rows, 2764 columns, 767493 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 254970 rows, 2764 columns and 767493 nonzeros
Model fingerprint: 0x32b70eef
Variable types: 53 continuous, 2711 integer (2711 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]
Presolve removed 99254 rows and 22 columns
Presolve time: 2.39s
Presolved: 155716 rows, 2742 columns, 470140 nonzeros
Variable types: 0 continuous, 2742 integer (2689 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2739 rows, 158455 columns, 472882 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10626    9.7221381e+01   0.000000e+00   1.220475e+05      5s
   28913    6.1957375e+01   0.000000e+00   2.807000e+05     10s
   43901    5.6855278e+01   0.000000e+00   2.111311e+05     15s
   59645    5.5807546e+01   0.000000e+00   3.170691e+04     20s
   74693    5.5788908e+01   0.000000e+00   1.180226e+04     25s
   87689    5.5782107e+01   0.000000e+00   1.781094e+04     30s
  102053    5.5779977e+01   0.000000e+00   1.580078e+00     35s
  103478    5.6000000e+01   0.000000e+00   0.000000e+00     36s
  103478    5.6000000e+01   0.000000e+00   0.000000e+00     36s
  103478    5.6000000e+01   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 5.600000e+01, 103478 iterations, 32.99 seconds (19.68 work units)

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

     0     0   56.00000    0 1536    7.00000   56.00000   700%     -   50s

Explored 1 nodes (110319 simplex iterations) in 50.07 seconds (33.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.600000000000e+01, gap 700.0000%

Wrote result file './lp_solutions/grafo7677.43.sol'

