
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:15:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7040.43.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/grafo7040.43.lp
Reading time = 0.24 seconds
: 120851 rows, 2455 columns, 364708 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 120851 rows, 2455 columns and 364708 nonzeros
Model fingerprint: 0x7f068dd6
Variable types: 49 continuous, 2406 integer (2406 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 32243 rows and 21 columns
Presolve time: 1.15s
Presolved: 88608 rows, 2434 columns, 268435 nonzeros
Variable types: 0 continuous, 2434 integer (2385 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2425 rows, 91033 columns, 270869 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16802    3.5709853e+01   0.000000e+00   4.765997e+04      5s
   35028    3.6000000e+01   0.000000e+00   0.000000e+00     10s
   35028    3.6000000e+01   0.000000e+00   0.000000e+00     10s
   35028    3.6000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 3.600000e+01, 35028 iterations, 8.59 seconds (5.64 work units)
Total elapsed time = 10.12s (DegenMoves)
Total elapsed time = 21.51s (DegenMoves)

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

     0     0   36.00000    0  551   11.00000   36.00000   227%     -   23s
     0     0   36.00000    0  694   11.00000   36.00000   227%     -   37s
     0     0   36.00000    0  626   11.00000   36.00000   227%     -   38s
     0     0   36.00000    0  712   11.00000   36.00000   227%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 26
  Cover: 14
  Clique: 11
  MIR: 76
  StrongCG: 2
  GUB cover: 2
  Zero half: 24
  RLT: 57

Explored 1 nodes (55044 simplex iterations) in 50.05 seconds (37.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.600000000000e+01, gap 227.2727%

Wrote result file './lp_solutions/grafo7040.43.sol'

