
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:49:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11671.39.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/grafo11671.39.lp
Reading time = 0.15 seconds
: 89019 rows, 2234 columns, 269089 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 89019 rows, 2234 columns and 269089 nonzeros
Model fingerprint: 0x32611d3a
Variable types: 48 continuous, 2186 integer (2186 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]
Found heuristic solution: objective 2.0000000
Presolve removed 20473 rows and 21 columns
Presolve time: 0.64s
Presolved: 68546 rows, 2213 columns, 208095 nonzeros
Variable types: 0 continuous, 2213 integer (2165 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2213 rows, 70759 columns, 210308 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24837    4.8725669e+01   0.000000e+00   1.613755e+04      5s
   44364    4.9000000e+01   0.000000e+00   0.000000e+00      9s
   44364    4.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.900000e+01, 44364 iterations, 8.22 seconds (6.52 work units)
Total elapsed time = 18.74s (DegenMoves)

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

     0     0   49.00000    0  410   10.00000   49.00000   390%     -   19s
H    0     0                      14.0000000   49.00000   250%     -   19s
     0     0   49.00000    0  759   14.00000   49.00000   250%     -   30s
     0     0   49.00000    0  704   14.00000   49.00000   250%     -   33s
     0     0   49.00000    0  681   14.00000   49.00000   250%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 34
  Cover: 19
  Clique: 13
  MIR: 162
  StrongCG: 1
  Zero half: 32
  RLT: 74
  BQP: 1

Explored 1 nodes (73436 simplex iterations) in 50.08 seconds (42.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 10 2 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.900000000000e+01, gap 250.0000%

Wrote result file './lp_solutions/grafo11671.39.sol'

