
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:06:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7079.41.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/grafo7079.41.lp
Reading time = 0.22 seconds
: 139648 rows, 2542 columns, 421236 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 139648 rows, 2542 columns and 421236 nonzeros
Model fingerprint: 0x00d720ad
Variable types: 51 continuous, 2491 integer (2491 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 43604 rows and 24 columns
Presolve time: 0.96s
Presolved: 96044 rows, 2518 columns, 290844 nonzeros
Variable types: 0 continuous, 2518 integer (2467 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2515 rows, 98559 columns, 293362 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19058    6.1859796e+01   0.000000e+00   3.694601e+04      5s
   41617    6.1767248e+01   0.000000e+00   1.750001e+04     10s
   59984    6.2000000e+01   0.000000e+00   0.000000e+00     14s
   59984    6.2000000e+01   0.000000e+00   0.000000e+00     14s
   59984    6.2000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 6.200000e+01, 59984 iterations, 13.24 seconds (10.37 work units)
Total elapsed time = 26.94s (DegenMoves)
Total elapsed time = 32.20s (DegenMoves)
Total elapsed time = 35.38s (DegenMoves)

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

     0     0   62.00000    0  663    6.00000   62.00000   933%     -   38s
H    0     0                       9.0000000   62.00000   589%     -   38s
H    0     0                      10.0000000   62.00000   520%     -   38s
     0     0          -    0        10.00000   62.00000   520%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 32
  Clique: 52
  MIR: 75
  GUB cover: 5
  Zero half: 21
  RLT: 68
  BQP: 8

Explored 1 nodes (84995 simplex iterations) in 50.02 seconds (56.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.200000000000e+01, gap 520.0000%

Wrote result file './lp_solutions/grafo7079.41.sol'

