
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:24:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6970.44.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/grafo6970.44.lp
Reading time = 0.10 seconds
: 65646 rows, 2171 columns, 198590 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 65646 rows, 2171 columns and 198590 nonzeros
Model fingerprint: 0x22f1debd
Variable types: 45 continuous, 2126 integer (2126 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 1.0000000
Presolve removed 6465 rows and 1 columns
Presolve time: 0.36s
Presolved: 59181 rows, 2170 columns, 179506 nonzeros
Variable types: 0 continuous, 2170 integer (2125 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2134 rows, 61315 columns, 181676 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28746    3.3934643e+01   0.000000e+00   7.766275e+02      5s
   32300    3.4000000e+01   0.000000e+00   0.000000e+00      6s
   32300    3.4000000e+01   0.000000e+00   0.000000e+00      6s
   32300    3.4000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.400000e+01, 32300 iterations, 5.38 seconds (4.83 work units)
Total elapsed time = 12.84s (DegenMoves)
Total elapsed time = 15.74s (DegenMoves)

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

     0     0   34.00000    0  597    9.00000   34.00000   278%     -   17s
H    0     0                      10.0000000   34.00000   240%     -   17s
     0     0   34.00000    0  693   10.00000   34.00000   240%     -   27s
     0     0   34.00000    0  652   10.00000   34.00000   240%     -   28s
     0     0   34.00000    0  738   10.00000   34.00000   240%     -   49s

Cutting planes:
  Gomory: 1
  Lift-and-project: 4
  Cover: 3
  MIR: 37
  Zero half: 5
  RLT: 28

Explored 1 nodes (71200 simplex iterations) in 50.06 seconds (44.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.400000000000e+01, gap 240.0000%

Wrote result file './lp_solutions/grafo6970.44.sol'

