
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:40:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7347.40.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/grafo7347.40.lp
Reading time = 0.21 seconds
: 132946 rows, 2539 columns, 401176 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 132946 rows, 2539 columns and 401176 nonzeros
Model fingerprint: 0x640fa844
Variable types: 52 continuous, 2487 integer (2487 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 -0.0000000
Presolve removed 39015 rows and 27 columns
Presolve time: 0.95s
Presolved: 93931 rows, 2512 columns, 284662 nonzeros
Variable types: 0 continuous, 2512 integer (2460 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2503 rows, 96434 columns, 287174 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22072    5.7956689e+01   0.000000e+00   5.655370e+04      5s
   43696    5.7934993e+01   0.000000e+00   7.413057e+03     10s
   64096    5.7932020e+01   0.000000e+00   4.341706e+00     15s
   66561    5.8000000e+01   0.000000e+00   0.000000e+00     16s
   66561    5.8000000e+01   0.000000e+00   0.000000e+00     16s
   66561    5.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.800000e+01, 66561 iterations, 14.58 seconds (11.60 work units)
Total elapsed time = 29.69s (DegenMoves)
Total elapsed time = 30.47s (DegenMoves)

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

     0     0   58.00000    0  478    9.00000   58.00000   544%     -   31s
H    0     0                      10.0000000   58.00000   480%     -   31s
     0     0   58.00000    0  804   10.00000   58.00000   480%     -   45s
     0     0          -    0        10.00000   58.00000   480%     -   50s

Cutting planes:
  Gomory: 7
  Cover: 4
  Clique: 6
  MIR: 76
  Zero half: 9
  RLT: 36

Explored 1 nodes (90159 simplex iterations) in 50.02 seconds (49.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.800000000000e+01, gap 480.0000%

Wrote result file './lp_solutions/grafo7347.40.sol'

