PB'05 competition: run trace

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:

LAUNCHER DATA
These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
SOLVER DATA
This is the output of the solver (stdout and stderr).
WATCHER DATA
This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
VERIFIER DATA
The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Name	normalized-opb/mps-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-pipex.opb
MD5SUM	b9c1029cc1d97a8d60e984f96f5d3267
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	788263
Optimality of the best value was proved	NO
Number of terms in the objective function	48
Biggest coefficient in the objective function	107865
Number of bits for the biggest coefficient in the objective function	17
Sum of the numbers in the objective function	2514082
Number of bits of the sum of numbers in the objective function	22
Biggest number in a constraint	107865
Number of bits of the biggest number in a constraint	17
Biggest sum of numbers in a constraint	2514082
Number of bits of the biggest sum of numbers	22
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02684
Number of variables	48
Total number of constraints	73
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	64
Number of constraints which are nor clauses,nor cardinality constraints	9
Minimum length of a constraint	1
Maximum length of a constraint	16

Trace number 15514

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-04-21 05:02:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17191 boxname=wulflinc2 idbench=1323 idsolver=5 numberseed=0
MD5SUM SOLVER: 1d62365061f6d70b1a242542b016b2e4  /oldhome/oroussel/solvers/minisat+
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-pipex.opb
REAL COMMAND:  minisat+ /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-pipex.opb
IDLAUNCH: 17191
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        775672 kB
Buffers:         15320 kB
Cached:         220640 kB
SwapCached:          0 kB
Active:          27956 kB
Inactive:       210712 kB
HighTotal:      131008 kB
HighFree:        28924 kB
LowTotal:       903652 kB
LowFree:        746748 kB
SwapTotal:     2097136 kB
SwapFree:      2096988 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6832 kB
Slab:            14460 kB
Committed_AS:    71776 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 05:03:17 (client local time) WITH STATUS 0 IN 65.3951 SECONDS
stats: 17191 7 65.3951 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 41 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: ################
c   -- Clauses(.)/Splits(s): (none)
c ---[  40]---> Sorter-cost:  709     Base: 2 5 2
c ---[  39]---> Sorter-cost:  709     Base: 2 5 2
c ---[  38]---> Sorter-cost:  709     Base: 2 5 2
c ---[  37]---> Sorter-cost:  485     Base: 2 5 2
c ---[  36]---> Sorter-cost:  485     Base: 2 5 2
c ---[  35]---> Sorter-cost:  485     Base: 2 5 2
c ---[  34]---> BDD-cost:  145
c ---[  33]---> Sorter-cost:  847     Base: 2 5 3 3
c ---[  32]---> Sorter-cost:  846     Base: 2 5 3 3
c ---[  30]---> BDD-cost:    3
c ---[  28]---> BDD-cost:    3
c ---[  26]---> BDD-cost:    3
c ---[  24]---> BDD-cost:    3
c ---[  22]---> BDD-cost:    3
c ---[  20]---> BDD-cost:    3
c ---[  18]---> BDD-cost:    3
c ---[  16]---> BDD-cost:    3
c ---[  14]---> BDD-cost:    3
c ---[  12]---> BDD-cost:    3
c ---[  10]---> BDD-cost:    3
c ---[   8]---> BDD-cost:    3
c ---[   6]---> BDD-cost:    3
c ---[   4]---> BDD-cost:    3
c ---[   2]---> BDD-cost:    3
c ---[   0]---> BDD-cost:    3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |   10626    25220 |    3542       0        0     nan |  0.000 % |
c |       100 |   10626    25220 |    3896     100     1361    13.6 |  0.600 % |
c |       251 |   10626    25220 |    4285     251     3751    14.9 |  0.600 % |
c |       476 |   10626    25220 |    4714     476     7871    16.5 |  0.600 % |
c |       813 |   10626    25220 |    5185     813    14626    18.0 |  0.600 % |
c |      1321 |   10626    25220 |    5704    1321    25021    18.9 |  0.600 % |
c |      2080 |   10626    25220 |    6274    2080    40682    19.6 |  0.600 % |
c |      3220 |   10626    25220 |    6902    3220    63760    19.8 |  0.600 % |
c |      4928 |   10626    25220 |    7592    4928    96995    19.7 |  0.600 % |
c |      7490 |   10626    25220 |    8351    7490   147433    19.7 |  0.600 % |
c |     11336 |   10626    25220 |    9187    7020   116874    16.6 |  0.601 % |
c ==============================================================================
c [1mFound solution: 850946[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost: 9868     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     14794 |   34317    80638 |   11439    4509    80935    17.9 |  0.601 % |
c |     14894 |   34317    80638 |   12582    4609    82660    17.9 |  0.344 % |
c |     15046 |   34317    80638 |   13841    4761    84960    17.8 |  0.344 % |
c |     15271 |   34317    80638 |   15225    4986    88080    17.7 |  0.344 % |
c |     15611 |   34317    80638 |   16747    5326    92955    17.5 |  0.344 % |
c |     16118 |   34317    80638 |   18422    5833   104369    17.9 |  0.344 % |
c ==============================================================================
c [1mFound solution: 839351[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   14     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     16571 |   34665    81546 |   11555    6286   115451    18.4 |  0.344 % |
c |     16671 |   34665    81546 |   12710    6386   117468    18.4 |  0.347 % |
c ==============================================================================
c [1mFound solution: 831071[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    9     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     16762 |   34770    81844 |   11590    6477   120675    18.6 |  0.347 % |
c ==============================================================================
c [1mFound solution: 820536[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   12     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     16791 |   34785    81885 |   11595    6506   121320    18.6 |  0.347 % |
c |     16892 |   34785    81885 |   12754    6607   122970    18.6 |  0.360 % |
c |     17043 |   34781    81877 |   14029    6757   126214    18.7 |  0.376 % |
c ==============================================================================
c [1mFound solution: 812399[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   15     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     17202 |   34867    82092 |   11622    6916   129873    18.8 |  0.376 % |
c ==============================================================================
c [1mFound solution: 790836[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    9     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     17236 |   34896    82171 |   11632    6950   131937    19.0 |  0.376 % |
c |     17338 |   34896    82171 |   12795    7052   134451    19.1 |  0.389 % |
c |     17490 |   34896    82171 |   14074    7204   138419    19.2 |  0.389 % |
c |     17717 |   34896    82171 |   15482    7431   144636    19.5 |  0.389 % |
c |     18057 |   34896    82171 |   17030    7771   152885    19.7 |  0.389 % |
c |     18563 |   34896    82171 |   18733    8277   165624    20.0 |  0.389 % |
c |     19323 |   34851    82078 |   20606    9034   186833    20.7 |  0.526 % |
c ==============================================================================
c [1mFound solution: 790714[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:   14     Base: 2 5 3 3 2 2 3 3 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     20058 |   34868    82145 |   11622    9769   206343    21.1 |  0.526 % |
c |     20158 |   34868    82145 |   12784    9869   209278    21.2 |  0.533 % |
c |     20308 |   34868    82145 |   14062   10019   213244    21.3 |  0.533 % |
c |     20533 |   34868    82145 |   15468   10244   218332    21.3 |  0.533 % |
c |     20870 |   34868    82145 |   17015   10581   227955    21.5 |  0.533 % |
c |     21377 |   34778    81941 |   18717   11087   241713    21.8 |  0.693 % |
c |     22138 |   34778    81941 |   20589   11848   263390    22.2 |  0.693 % |
c |     23277 |   34720    81810 |   22647   12986   293318    22.6 |  0.823 % |
c |     24987 |   34720    81810 |   24912   14696   336566    22.9 |  0.823 % |
c |     27549 |   34720    81810 |   27404   17258   398063    23.1 |  0.823 % |
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.76 0.93 0.91 2/54 20112
Raw data (stat): 20112 (runsolver) R 20111 20937 20936 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 484183858 1052672 99 4294967295 134512640 135381576 3221224528 3221219772 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+9.99971 s]
Raw data (loadavg): 0.80 0.94 0.91 2/54 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 906 0 0 0 996 3 0 0 25 0 1 0 484183858 5521408 883 4294967295 134512640 134672761 3221224624 3221223760 134560677 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1348 883 603 41 0 1307 0
vsize: 5392
[startup+20.0003 s]
Raw data (loadavg): 0.83 0.94 0.91 2/54 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 1700 0 0 0 1994 5 0 0 25 0 1 0 484183858 8331264 1549 4294967295 134512640 134672761 3221224624 3221223824 134557809 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2034 1549 603 41 0 1993 0
vsize: 8136
[startup+30.0006 s]
Raw data (loadavg): 0.85 0.94 0.91 2/54 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 2590 0 0 0 2991 8 0 0 25 0 1 0 484183858 9453568 1782 4294967295 134512640 134672761 3221224624 3221223824 134557842 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2308 1782 603 41 0 2267 0
vsize: 9232
[startup+40.0011 s]
Raw data (loadavg): 0.88 0.94 0.91 2/54 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 2810 0 0 0 3990 9 0 0 25 0 1 0 484183858 9498624 1815 4294967295 134512640 134672761 3221224624 3221223792 134560830 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2319 1815 603 41 0 2278 0
vsize: 9276
[startup+50.0014 s]
Raw data (loadavg): 0.89 0.94 0.91 2/54 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 2860 0 0 0 4990 9 0 0 25 0 1 0 484183858 9764864 1865 4294967295 134512640 134672761 3221224624 3221223792 134560898 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2384 1865 603 41 0 2343 0
vsize: 9536
[startup+60.0007 s]
Raw data (loadavg): 0.91 0.94 0.91 2/54 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 2969 0 0 0 5990 10 0 0 25 0 1 0 484183858 10289152 1974 4294967295 134512640 134672761 3221224624 3221223760 134560588 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2512 1974 603 41 0 2471 0
vsize: 10048
[startup+65.3945 s]
Raw data (loadavg): 0.92 0.94 0.91 1/53 20112
Raw data (stat): 20112 (minisat+) R 20111 20937 20936 0 -1 0 2969 0 0 0 5990 10 0 0 25 0 1 0 484183858 10289152 1974 4294967295 134512640 134672761 3221224624 3221223760 134560588 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2512 1974 603 41 0 2471 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 65.3943
CPU time (s): 65.3951
CPU user time (s): 65.2741
CPU system time (s): 0.120981
CPU usage (%): 100.001
Max. virtual memory (Kb): 10048
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####