
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:20:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1967.35.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/grafo1967.35.lp
Reading time = 0.92 seconds
: 578877 rows, 2361 columns, 1738938 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 578877 rows, 2361 columns and 1738938 nonzeros
Model fingerprint: 0x59872cda
Variable types: 49 continuous, 2312 integer (2312 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 280255 rows and 18 columns
Presolve time: 4.90s
Presolved: 298622 rows, 2343 columns, 898420 nonzeros
Variable types: 0 continuous, 2343 integer (2294 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2340 rows, 300962 columns, 900763 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.2589362e+02   0.000000e+00   1.667119e+06      7s
   27719    1.0980767e+02   0.000000e+00   1.278862e+06     10s
   53854    6.4994233e+01   0.000000e+00   1.898526e+05     15s
   79222    6.2939084e+01   0.000000e+00   5.317785e+04     20s
  100350    6.0884601e+01   0.000000e+00   4.912564e+05     25s
  124176    6.0859215e+01   0.000000e+00   5.179632e+04     30s
  147951    6.0849562e+01   0.000000e+00   1.317896e+03     35s
  171533    6.0846246e+01   0.000000e+00   4.012462e+02     40s
  177214    6.1000000e+01   0.000000e+00   0.000000e+00     42s
  177214    6.1000000e+01   0.000000e+00   0.000000e+00     42s
  177214    6.1000000e+01   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 6.100000e+01, 177214 iterations, 35.98 seconds (26.73 work units)

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

     0     0   61.00000    0 1396    6.00000   61.00000   917%     -   50s

Explored 1 nodes (180228 simplex iterations) in 50.08 seconds (40.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.100000000000e+01, gap 916.6667%

Wrote result file './lp_solutions/grafo1967.35.sol'

