
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:23:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6862.47.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/grafo6862.47.lp
Reading time = 0.54 seconds
: 290160 rows, 3386 columns, 873717 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 290160 rows, 3386 columns and 873717 nonzeros
Model fingerprint: 0x2caf9faa
Variable types: 59 continuous, 3327 integer (3327 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, 6e+01]
Found heuristic solution: objective 3.0000000
Presolve removed 105513 rows and 22 columns
Presolve time: 2.70s
Presolved: 184647 rows, 3364 columns, 557669 nonzeros
Variable types: 0 continuous, 3364 integer (3305 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3355 rows, 188002 columns, 561033 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7837    1.4172630e+02   0.000000e+00   6.000969e+05      5s
   22446    8.1799579e+01   0.000000e+00   6.482775e+05     10s
   33802    7.2679774e+01   0.000000e+00   2.710540e+05     15s
   45079    6.7639565e+01   0.000000e+00   1.426935e+05     20s
   55617    6.7614971e+01   0.000000e+00   8.646036e+04     25s
   67551    6.7600626e+01   0.000000e+00   1.244899e+04     30s
   78783    6.7591830e+01   0.000000e+00   5.929520e+04     35s
   89313    6.7586379e+01   0.000000e+00   3.051831e+04     40s
   99843    6.7583081e+01   0.000000e+00   4.886718e+03     45s

Root relaxation: time limit, 110100 iterations, 46.93 seconds (26.57 work units)

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

     0     0          -    0         9.00000  386.00000  4189%     -   50s

Explored 1 nodes (110100 simplex iterations) in 50.03 seconds (29.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.860000000000e+02, gap 4188.8889%

Wrote result file './lp_solutions/grafo6862.47.sol'

