
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:23:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7430.43.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/grafo7430.43.lp
Reading time = 1.05 seconds
: 551251 rows, 3942 columns, 1658003 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 551251 rows, 3942 columns and 1658003 nonzeros
Model fingerprint: 0x08bee906
Variable types: 67 continuous, 3875 integer (3875 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, 7e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 233969 rows and 3 columns
Presolve time: 4.30s
Presolved: 317282 rows, 3939 columns, 956635 nonzeros
Variable types: 0 continuous, 3939 integer (3872 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 3912 rows, 321194 columns, 960574 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.2572800e+03   0.000000e+00   1.874129e+06      6s
   14517    2.5091353e+02   0.000000e+00   4.073446e+06     10s
   28802    1.9338418e+02   0.000000e+00   3.034005e+06     16s
   40143    1.7674515e+02   0.000000e+00   2.863167e+06     22s
   46604    1.6253988e+02   0.000000e+00   1.019823e+06     25s
   58021    1.4654404e+02   0.000000e+00   8.276972e+05     31s
   66924    1.3195737e+02   0.000000e+00   9.796152e+05     36s
   78011    1.1385480e+02   0.000000e+00   2.881908e+05     42s
   84933    9.9833486e+01   0.000000e+00   9.712745e+05     46s

Root relaxation: time limit, 91115 iterations, 45.04 seconds (29.81 work units)

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

     0     0          -    0        13.00000  561.00000  4215%     -   50s

Explored 1 nodes (91115 simplex iterations) in 50.09 seconds (34.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 -0 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.610000000000e+02, gap 4215.3846%

Wrote result file './lp_solutions/grafo7430.43.sol'

