
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:16:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5931.46.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/grafo5931.46.lp
Reading time = 0.27 seconds
: 170098 rows, 3151 columns, 513247 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 170098 rows, 3151 columns and 513247 nonzeros
Model fingerprint: 0x02d6b4d2
Variable types: 58 continuous, 3093 integer (3093 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 1.0000000
Presolve removed 44148 rows and 34 columns
Presolve time: 1.27s
Presolved: 125950 rows, 3117 columns, 381307 nonzeros
Variable types: 0 continuous, 3117 integer (3059 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3111 rows, 129061 columns, 384424 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15234    7.3361484e+01   0.000000e+00   1.731392e+05      5s
   32245    6.2946441e+01   0.000000e+00   3.515195e+04     10s
   48730    6.2927560e+01   0.000000e+00   6.886550e+04     15s
   64868    6.2916840e+01   0.000000e+00   1.545521e+04     20s
   81586    6.2910672e+01   0.000000e+00   6.876226e+03     25s
   98394    6.2906638e+01   0.000000e+00   4.623352e+03     30s
  114182    6.2904553e+01   0.000000e+00   1.630331e+03     35s
  129789    6.2903529e+01   0.000000e+00   1.023970e+02     40s
  136857    6.3000000e+01   0.000000e+00   0.000000e+00     42s
  136857    6.3000000e+01   0.000000e+00   0.000000e+00     42s
  136857    6.3000000e+01   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 6.300000e+01, 136857 iterations, 40.96 seconds (36.87 work units)

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

     0     0   63.00000    0 2128    9.00000   63.00000   600%     -   50s

Explored 1 nodes (139425 simplex iterations) in 50.04 seconds (46.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.300000000000e+01, gap 600.0000%

Wrote result file './lp_solutions/grafo5931.46.sol'

