
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:30:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3367.40.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/grafo3367.40.lp
Reading time = 0.48 seconds
: 210195 rows, 2029 columns, 632112 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 210195 rows, 2029 columns and 632112 nonzeros
Model fingerprint: 0xd91ea3dd
Variable types: 41 continuous, 1988 integer (1988 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 91628 rows and 20 columns
Presolve time: 2.07s
Presolved: 118567 rows, 2009 columns, 357545 nonzeros
Variable types: 0 continuous, 2009 integer (1968 binary)
Root relaxation presolved: 2009 rows, 120576 columns, 359554 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15540    5.8998516e+01   0.000000e+00   9.003236e+04      5s
   39838    4.6829585e+01   0.000000e+00   3.851632e+04     10s
   63398    4.6811274e+01   0.000000e+00   1.022737e+04     15s
   67474    4.7000000e+01   0.000000e+00   0.000000e+00     16s
   67474    4.7000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.700000e+01, 67474 iterations, 13.68 seconds (8.35 work units)
Total elapsed time = 27.95s (DegenMoves)
Total elapsed time = 31.51s (DegenMoves)

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

     0     0   47.00000    0  476          -   47.00000      -     -   34s
H    0     0                       7.0000000   47.00000   571%     -   34s
     0     0          -    0         7.00000   47.00000   571%     -   50s

Cutting planes:
  Gomory: 25
  Cover: 38
  Clique: 76
  MIR: 187
  GUB cover: 1
  Zero half: 37
  RLT: 104
  BQP: 16

Explored 1 nodes (82869 simplex iterations) in 50.03 seconds (44.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.700000000000e+01, gap 571.4286%

Wrote result file './lp_solutions/grafo3367.40.sol'

