
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:25:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7049.42.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/grafo7049.42.lp
Reading time = 0.24 seconds
: 150145 rows, 2450 columns, 452541 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 150145 rows, 2450 columns and 452541 nonzeros
Model fingerprint: 0xeb0bd93d
Variable types: 49 continuous, 2401 integer (2401 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 49787 rows and 25 columns
Presolve time: 1.21s
Presolved: 100358 rows, 2425 columns, 303607 nonzeros
Variable types: 0 continuous, 2425 integer (2376 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2419 rows, 102777 columns, 306032 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20133    5.1715582e+01   0.000000e+00   1.814952e+05      5s
   43330    5.1656796e+01   0.000000e+00   1.433071e+04     10s
   66654    5.1641125e+01   0.000000e+00   1.650282e+03     15s
   84336    5.2000000e+01   0.000000e+00   0.000000e+00     19s
   84336    5.2000000e+01   0.000000e+00   0.000000e+00     19s
   84336    5.2000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.200000e+01, 84336 iterations, 17.46 seconds (13.57 work units)
Total elapsed time = 41.30s (DegenMoves)
Total elapsed time = 45.31s (DegenMoves)

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

     0     0   52.00000    0  666   10.00000   52.00000   420%     -   46s
H    0     0                      12.0000000   52.00000   333%     -   46s

Cutting planes:
  Gomory: 29
  Cover: 30
  Clique: 11
  MIR: 114
  StrongCG: 1
  GUB cover: 3
  Zero half: 15

Explored 1 nodes (103126 simplex iterations) in 50.22 seconds (48.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 2 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.200000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo7049.42.sol'

