--- Job mitre Start 08/24/08 03:26:39 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 --- mitre.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/mitre.gdx --- mitre.gms(148) 5 Mb --- Starting execution: elapsed 0:00:00.063 --- mitre.gms(123) 5 Mb --- Generating MIP model m --- mitre.gms(124) 8 Mb --- 2,055 rows 9,959 columns 46,330 non-zeroes --- 9,958 discrete-columns --- mitre.gms(124) 7 Mb --- Executing Cbc: elapsed 0:00:00.213 GAMS/Cbc 2.1 LP/MIP Solver written by J. Forrest Problem statistics: 9958 columns and 2054 rows. 9958 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.20.00, build Aug 23 2008 command line - GAMS/CBC -solve -quit Continuous objective value is 114828 - 0.18 seconds Perturbing problem by 0.001 % of 3105 - largest nonzero change 0.0143772 (% 0.00217696) - largest zero change 0.00622197 0 Obj 114828 Primal inf 23.973 (7) Optimal - objective value 114828 2782 fixed, 0 tightened bounds, 0 strengthened rows, 0 substitutions 2782 fixed, 0 tightened bounds, 0 strengthened rows, 0 substitutions 1294 fixed, 0 tightened bounds, 141 strengthened rows, 0 substitutions 390 fixed, 0 tightened bounds, 122 strengthened rows, 2 substitutions 62 fixed, 0 tightened bounds, 131 strengthened rows, 12 substitutions 2 fixed, 0 tightened bounds, 138 strengthened rows, 20 substitutions 5 fixed, 0 tightened bounds, 136 strengthened rows, 22 substitutions 7 fixed, 0 tightened bounds, 138 strengthened rows, 24 substitutions 0 fixed, 0 tightened bounds, 136 strengthened rows, 12 substitutions 0 fixed, 0 tightened bounds, 135 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 134 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 130 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 127 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 124 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 112 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 104 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 98 strengthened rows, 0 substitutions processed model has 1236 rows, 5403 columns (5403 integer) and 19383 elements Objective coefficients multiple of 15 Cutoff increment increased from 1e-05 to 14.985 Objective coefficients multiple of 15 Pass 1: suminf. 3.06281 (18) obj. 115180 iterations 175 Pass 2: suminf. 3.06281 (18) obj. 115180 iterations 0 Pass 3: suminf. 9.71063 (40) obj. 115520 iterations 215 Pass 4: suminf. 5.61197 (34) obj. 115760 iterations 79 Pass 5: suminf. 3.02373 (28) obj. 115685 iterations 2 Pass 6: suminf. 3.02373 (28) obj. 115685 iterations 0 Pass 7: suminf. 3.02373 (28) obj. 115685 iterations 0 Pass 8: suminf. 7.24409 (32) obj. 117316 iterations 165 Pass 9: suminf. 6.93223 (32) obj. 117309 iterations 56 Pass 10: suminf. 6.53223 (32) obj. 117309 iterations 3 Pass 11: suminf. 5.53223 (30) obj. 117579 iterations 2 Pass 12: suminf. 5.53223 (30) obj. 117579 iterations 0 Pass 13: suminf. 7.03653 (34) obj. 119694 iterations 176 Pass 14: suminf. 6.33333 (32) obj. 119784 iterations 47 Pass 15: suminf. 4.62744 (28) obj. 119784 iterations 1 Pass 16: suminf. 4.62744 (28) obj. 119784 iterations 0 Pass 17: suminf. 5.07610 (28) obj. 120511 iterations 132 Pass 18: suminf. 4.72634 (28) obj. 120504 iterations 38 Pass 19: suminf. 4.72634 (28) obj. 120504 iterations 0 Pass 20: suminf. 7.09174 (30) obj. 120988 iterations 177 No solution found this major pass Before mini branch and bound, 5235 integers at bound fixed and 0 continuous Full problem 1236 rows 5403 columns, reduced to 64 rows 112 columns Mini branch and bound did not improve solution (0.24 seconds) Full problem 1237 rows 5403 columns, reduced to 1237 rows 5403 columns - too large After 0.34 seconds - Feasibility pump exiting - took 0.33 seconds 21 added rows had average density of 39.4762 At root node, 21 cuts changed objective from 115135 to 115155 in 6 passes Cut generator 0 (Probing) - 15 row cuts, 6 column cuts (16 active) in 0.548 seconds - new frequency is 1 Cut generator 1 (Gomory) - 36 row cuts, 0 column cuts (5 active) in 0.020 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 13 row cuts, 0 column cuts (0 active) in 0.008 seconds - new frequency is 1 Cut generator 3 (Clique) - 0 row cuts, 0 column cuts (0 active) in 0.000 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 12 row cuts, 0 column cuts (0 active) in 0.024 seconds - new frequency is 1 Cut generator 5 (FlowCover) - 0 row cuts, 0 column cuts (0 active) in 0.004 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 53 row cuts, 0 column cuts (0 active) in 0.032 seconds - new frequency is -100 Integer solution of 115155 found after 93 iterations and 0 nodes (1.13 seconds) Optimal - objective value 115155 Optimal - objective value 115155 Search completed - best objective 115155.0000000001, took 93 iterations and 0 nodes (1.13 seconds) Maximum depth 0, 0 variables fixed on reduced cost Cuts at root node changed objective from 115135 to 115155 Probing was tried 6 times and created 21 cuts of which 16 were active after adding rounds of cuts (0.548 seconds) Gomory was tried 6 times and created 36 cuts of which 5 were active after adding rounds of cuts (0.020 seconds) Knapsack was tried 6 times and created 13 cuts of which 0 were active after adding rounds of cuts (0.008 seconds) Clique was tried 6 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) MixedIntegerRounding2 was tried 6 times and created 12 cuts of which 0 were active after adding rounds of cuts (0.024 seconds) FlowCover was tried 6 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.004 seconds) TwoMirCuts was tried 6 times and created 53 cuts of which 0 were active after adding rounds of cuts (0.032 seconds) implication was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts Result - Finished objective 115155.0000000001 after 0 nodes and 93 iterations - took 6.83 seconds (total time 7.03) Total time 7.15 Solved to optimality. MIP solution: 115155 (0 nodes, 7.16 seconds) Best possible: 115155 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- mitre.gms(124) 0 Mb --- Reading solution for model m --- mitre.gms(124) 5 Mb *** Status: Normal completion --- Job mitre.gms Stop 08/24/08 03:26:47 elapsed 0:00:07.598