
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:32:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7395.40.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/grafo7395.40.lp
Reading time = 0.17 seconds
: 108824 rows, 2302 columns, 328451 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 108824 rows, 2302 columns and 328451 nonzeros
Model fingerprint: 0xfb6a0066
Variable types: 48 continuous, 2254 integer (2254 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 31574 rows and 15 columns
Presolve time: 0.72s
Presolved: 77250 rows, 2287 columns, 234144 nonzeros
Variable types: 0 continuous, 2287 integer (2239 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2281 rows, 79531 columns, 236431 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22488    5.8795343e+01   0.000000e+00   3.686498e+04      5s
   47535    5.8769411e+01   0.000000e+00   1.050532e+04     10s
   54395    5.9000000e+01   0.000000e+00   0.000000e+00     11s
   54395    5.9000000e+01   0.000000e+00   0.000000e+00     12s
   54395    5.9000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.900000e+01, 54395 iterations, 10.70 seconds (8.48 work units)
Total elapsed time = 26.14s (DegenMoves)
Total elapsed time = 30.16s (DegenMoves)

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

     0     0   59.00000    0  687    8.00000   59.00000   637%     -   30s
H    0     0                      10.0000000   59.00000   490%     -   30s
     0     0          -    0        10.00000   59.00000   490%     -   50s

Cutting planes:
  Gomory: 41
  Cover: 34
  Clique: 13
  MIR: 115
  GUB cover: 1
  Zero half: 33
  RLT: 43
  BQP: 3

Explored 1 nodes (82789 simplex iterations) in 50.02 seconds (50.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.900000000000e+01, gap 490.0000%

Wrote result file './lp_solutions/grafo7395.40.sol'

