
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:28:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3203.40.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/grafo3203.40.lp
Reading time = 0.36 seconds
: 179810 rows, 2205 columns, 541310 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 179810 rows, 2205 columns and 541310 nonzeros
Model fingerprint: 0x82415a36
Variable types: 46 continuous, 2159 integer (2159 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 69873 rows and 26 columns
Presolve time: 1.70s
Presolved: 109937 rows, 2179 columns, 332032 nonzeros
Variable types: 0 continuous, 2179 integer (2133 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2179 rows, 112116 columns, 334211 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15192    4.6954526e+01   0.000000e+00   3.573859e+05      5s
   34342    4.3800857e+01   0.000000e+00   5.277992e+04     10s
   55014    4.3781585e+01   0.000000e+00   1.829103e+03     15s
   62899    4.4000000e+01   0.000000e+00   0.000000e+00     17s
   62899    4.4000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.400000e+01, 62899 iterations, 15.02 seconds (8.74 work units)
Total elapsed time = 34.30s (DegenMoves)
Total elapsed time = 35.41s (DegenMoves)

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

     0     0   44.00000    0  465    5.00000   44.00000   780%     -   37s
H    0     0                       8.0000000   44.00000   450%     -   37s
H    0     0                      11.0000000   44.00000   300%     -   37s
     0     0          -    0        11.00000   44.00000   300%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 44
  Clique: 27
  MIR: 159
  StrongCG: 2
  GUB cover: 6
  Zero half: 45
  RLT: 77
  BQP: 8

Explored 1 nodes (78698 simplex iterations) in 50.02 seconds (40.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 5 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.400000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo3203.40.sol'

