--- Job misc06 Start 07/17/08 19:56:34 GAMS Rev 227 Copyright (C) 1987-2008 GAMS Development. All rights reserved Licensee: Stefan Vigerske G071106/0001CB-LNX Humboldt University Berlin, Numerical Mathematics DC5918 --- Starting compilation --- misc06.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/misc06.gdx --- misc06.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.015 --- misc06.gms(123) 4 Mb --- Generating MIP model m --- misc06.gms(124) 4 Mb --- 821 rows 1,809 columns 5,861 non-zeroes --- 112 discrete-columns --- misc06.gms(124) 4 Mb --- Executing Cbc: elapsed 0:00:00.042 GAMS/Cbc 2.1 LP/MIP Solver written by J. Forrest Reading parameter(s) from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" >> threads 2 Finished reading from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" Problem statistics: 1808 columns and 820 rows. 112 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.10.00, build Jul 15 2008 command line - GAMS/CBC -threads 2 -solve -quit threads was changed from 0 to 2 Continuous objective value is 12841.7 - 0.04 seconds processed model has 615 rows, 1463 columns (112 integer) and 3121 elements Pass 1: suminf. 0.00000 obj. 12916.1 iterations 90 Solution found of 12916.1 Before mini branch and bound, 96 integers at bound fixed and 1036 continuous Full problem 615 rows 1463 columns, reduced to 228 rows 263 columns Mini branch and bound improved solution from 12916.1 to 12911.1 (0.08 seconds) Freeing continuous variables gives a solution of 12892.4 Round again with cutoff of 12887.3 Reduced cost fixing fixed 1 variables on major pass 2 Pass 2: suminf. 0.00000 obj. 12887.3 iterations 118 Solution found of 12887.3 Before mini branch and bound, 96 integers at bound fixed and 1029 continuous Full problem 615 rows 1463 columns, reduced to 230 rows 273 columns Mini branch and bound improved solution from 12887.3 to 12882.8 (0.16 seconds) Freeing continuous variables gives a solution of 12879.9 After 0.16 seconds - Feasibility pump exiting with objective of 12879.9 - took 0.16 seconds Integer solution of 12870.3 found by feasibility pump after 0 iterations and 0 nodes (0.17 seconds) Full problem 615 rows 1463 columns, reduced to 311 rows 801 columns 21 added rows had average density of 159.905 At root node, 21 cuts changed objective from 12841.7 to 12849.6 in 10 passes Cut generator 0 (Probing) - 0 row cuts (0 active), 0 column cuts in 0.080 seconds - new frequency is 10 Cut generator 1 (Gomory) - 72 row cuts (10 active), 0 column cuts in 0.012 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 0 row cuts (0 active), 0 column cuts in 0.020 seconds - new frequency is -100 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in -0.000 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 0 row cuts (0 active), 0 column cuts in -0.000 seconds - new frequency is -100 Cut generator 5 (FlowCover) - 0 row cuts (0 active), 0 column cuts in 0.036 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 54 row cuts (11 active), 0 column cuts in 0.016 seconds - new frequency is -100 After 0 nodes, 1 on tree, 12870.3 best solution, best possible 12849.6 (0.46 seconds) Cbc0004I Integer solution of 12855.2 found after 346 iterations and 17 nodes (0.96 seconds) Cbc0038I Full problem 615 rows 1463 columns, reduced to 311 rows 801 columns Solved to optimality. wallclocktime: 0.983869 used seconds: 1.23 MIP solution: 12850.86074 (22 nodes, 1.23 seconds) Best possible: 12850.86074 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- misc06.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job misc06.gms Stop 07/17/08 19:56:35 elapsed 0:00:01.057