
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:47:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo138.38.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/grafo138.38.lp
Reading time = 0.08 seconds
: 64892 rows, 1871 columns, 196184 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 64892 rows, 1871 columns and 196184 nonzeros
Model fingerprint: 0x94d3eddc
Variable types: 42 continuous, 1829 integer (1829 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]
Presolve removed 15673 rows and 21 columns
Presolve time: 0.35s
Presolved: 49219 rows, 1850 columns, 149532 nonzeros
Variable types: 0 continuous, 1850 integer (1808 binary)
Root relaxation presolved: 29303 rows, 21766 columns, 109700 nonzeros


Root relaxation: objective 4.200000e+01, 4037 iterations, 1.84 seconds (2.22 work units)
Total elapsed time = 5.80s (DegenMoves)

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

     0     0   42.00000    0  497          -   42.00000      -     -    6s
H    0     0                      11.0000000   42.00000   282%     -    6s
H    0     0                      12.0000000   42.00000   250%     -    6s
     0     0   42.00000    0  662   12.00000   42.00000   250%     -   13s
H    0     0                      13.0000000   42.00000   223%     -   13s
     0     0   42.00000    0  697   13.00000   42.00000   223%     -   13s
H    0     0                      14.0000000   42.00000   200%     -   31s
     0     0   42.00000    0  575   14.00000   42.00000   200%     -   31s
     0     0   42.00000    0  598   14.00000   42.00000   200%     -   33s
H    0     0                      15.0000000   42.00000   180%     -   34s
     0     0   42.00000    0  442   15.00000   42.00000   180%     -   45s
     0     0   42.00000    0  478   15.00000   42.00000   180%     -   46s
     0     0   42.00000    0  593   15.00000   42.00000   180%     -   50s

Cutting planes:
  Cover: 37
  Clique: 7
  MIR: 158
  GUB cover: 1
  Zero half: 51
  RLT: 64
  BQP: 1

Explored 1 nodes (62497 simplex iterations) in 50.06 seconds (54.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 11

Time limit reached
Best objective 1.500000000000e+01, best bound 4.200000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo138.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:31:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo138.38.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/grafo138.38.lp
Reading time = 0.11 seconds
: 64892 rows, 1871 columns, 196184 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 64892 rows, 1871 columns and 196184 nonzeros
Model fingerprint: 0x94d3eddc
Variable types: 42 continuous, 1829 integer (1829 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]
Presolve removed 15673 rows and 21 columns
Presolve time: 0.46s
Presolved: 49219 rows, 1850 columns, 149532 nonzeros
Variable types: 0 continuous, 1850 integer (1808 binary)
Root relaxation presolved: 29303 rows, 21766 columns, 109700 nonzeros


Root relaxation: objective 4.200000e+01, 4037 iterations, 2.34 seconds (2.22 work units)
Total elapsed time = 7.21s (DegenMoves)

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

     0     0   42.00000    0  497          -   42.00000      -     -    7s
H    0     0                      11.0000000   42.00000   282%     -    7s
H    0     0                      12.0000000   42.00000   250%     -    7s
     0     0   42.00000    0  662   12.00000   42.00000   250%     -   15s
H    0     0                      13.0000000   42.00000   223%     -   16s
     0     0   42.00000    0  697   13.00000   42.00000   223%     -   16s
H    0     0                      14.0000000   42.00000   200%     -   37s
     0     0   42.00000    0  575   14.00000   42.00000   200%     -   38s
     0     0   42.00000    0  598   14.00000   42.00000   200%     -   40s
H    0     0                      15.0000000   42.00000   180%     -   41s
     0     0   42.00000    0  589   15.00000   42.00000   180%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 16
  Clique: 6
  MIR: 149
  StrongCG: 2
  GUB cover: 3
  Zero half: 61
  RLT: 76

Explored 1 nodes (50126 simplex iterations) in 50.06 seconds (44.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 11

Time limit reached
Best objective 1.500000000000e+01, best bound 4.200000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo138.38.sol'

