
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:03:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7182.39.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/grafo7182.39.lp
Reading time = 0.33 seconds
: 202177 rows, 2479 columns, 608888 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 202177 rows, 2479 columns and 608888 nonzeros
Model fingerprint: 0xd6bb8418
Variable types: 51 continuous, 2428 integer (2428 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 77488 rows and 26 columns
Presolve time: 1.66s
Presolved: 124689 rows, 2453 columns, 376863 nonzeros
Variable types: 0 continuous, 2453 integer (2402 binary)
Root relaxation presolved: 2453 rows, 127142 columns, 379316 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16938    5.6858940e+01   0.000000e+00   3.095212e+06      5s
   37709    5.0730111e+01   0.000000e+00   1.654647e+04     10s
   59102    5.0703211e+01   0.000000e+00   3.471187e+03     15s
   80488    5.0696879e+01   0.000000e+00   1.151338e+04     20s
   87033    5.1000000e+01   0.000000e+00   0.000000e+00     22s
   87033    5.1000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.100000e+01, 87033 iterations, 19.71 seconds (14.67 work units)
Total elapsed time = 41.00s (DegenMoves)

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

     0     0   51.00000    0  520          -   51.00000      -     -   45s
H    0     0                       5.0000000   51.00000   920%     -   45s
H    0     0                       7.0000000   51.00000   629%     -   45s
     0     0          -    0         7.00000   51.00000   629%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 50
  Clique: 34
  MIR: 158
  GUB cover: 9
  Zero half: 38
  RLT: 61
  BQP: 4

Explored 1 nodes (102426 simplex iterations) in 50.02 seconds (46.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 5 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.100000000000e+01, gap 628.5714%

Wrote result file './lp_solutions/grafo7182.39.sol'

