Trace number 1084887

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 into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Mistral-prime 1.313SAT 12.961 12.9709

DiagnosticValue
ASSIGNMENTS49602
CHECKS2508420

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-6_ext.xml
MD5SUM3888b994eade183d2e4ca8097fc27fc8
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark5.20621
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints18
Maximum constraint arity8
Maximum domain size5
Number of constraints which are defined in extension18
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.01	c mistral-prime version 1.313
12.78/12.89	s SATISFIABLE
12.78/12.89	v 3 2 2 4 2 4 0 1 1 0 3 3 3 0 1 2 0 0 3 1
12.78/12.89	d CHECKS 2508425
12.78/12.89	d ASSIGNMENTS 49602

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084887-1215232267/watcher-1084887-1215232267 -o /tmp/evaluation-result-1084887-1215232267/solver-1084887-1215232267 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084887-1215232267.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/76 16553
/proc/meminfo: memFree=1802224/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=816 CPUtime=0
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 39 0 0 0 0 0 0 0 21 0 1 0 2002200397 835584 25 996147200 134512640 135237403 4294956240 18446744073709551615 10945316 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/16553/statm: 204 25 19 176 0 3 0

[startup+0.0543319 s]
/proc/loadavg: 2.00 2.00 2.00 4/76 16553
/proc/meminfo: memFree=1802224/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=5816 CPUtime=0.04
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 690 0 0 0 4 0 0 0 18 0 1 0 2002200397 5955584 656 996147200 134512640 135237403 4294956240 18446744073709551615 11380347 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 1454 656 354 176 0 358 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5816

[startup+0.101616 s]
/proc/loadavg: 2.00 2.00 2.00 4/76 16553
/proc/meminfo: memFree=1802224/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=6740 CPUtime=0.09
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 955 0 0 0 9 0 0 0 18 0 1 0 2002200397 6901760 921 996147200 134512640 135237403 4294956240 18446744073709551615 11380347 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 1685 921 354 176 0 589 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6740

[startup+0.301674 s]
/proc/loadavg: 2.00 2.00 2.00 4/76 16553
/proc/meminfo: memFree=1802224/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=11136 CPUtime=0.29
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 2086 0 0 0 28 1 0 0 19 0 1 0 2002200397 11403264 2052 996147200 134512640 135237403 4294956240 18446744073709551615 11380347 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 2784 2054 354 176 0 1688 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11136

[startup+0.701721 s]
/proc/loadavg: 2.00 2.00 2.00 4/76 16553
/proc/meminfo: memFree=1802224/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=20240 CPUtime=0.69
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 4348 0 0 0 67 2 0 0 23 0 1 0 2002200397 20725760 4314 996147200 134512640 135237403 4294956240 18446744073709551615 11380347 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 5060 4314 354 176 0 3964 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20240

[startup+1.5015 s]
/proc/loadavg: 2.00 2.00 2.00 4/77 16554
/proc/meminfo: memFree=1779176/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=38588 CPUtime=1.49
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 8873 0 0 0 145 4 0 0 25 0 1 0 2002200397 39514112 8839 996147200 134512640 135237403 4294956240 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 9647 8839 354 176 0 8551 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 38588

[startup+3.1017 s]
/proc/loadavg: 2.00 2.00 2.00 3/77 16554
/proc/meminfo: memFree=1754728/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=66132 CPUtime=3.08
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 15889 0 0 0 302 6 0 0 25 0 1 0 2002200397 67719168 15855 996147200 134512640 135237403 4294956240 18446744073709551615 134817905 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 16533 15855 397 176 0 15437 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 66132

[startup+6.30117 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 16554
/proc/meminfo: memFree=1740392/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=66136 CPUtime=6.28
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 15890 0 0 0 622 6 0 0 25 0 1 0 2002200397 67723264 15856 996147200 134512640 135237403 4294956240 18446744073709551615 134817908 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 16534 15856 397 176 0 15438 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 66136

[startup+12.7019 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16554
/proc/meminfo: memFree=1740392/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=66136 CPUtime=12.68
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 15890 0 0 0 1262 6 0 0 25 0 1 0 2002200397 67723264 15856 996147200 134512640 135237403 4294956240 18446744073709551615 135085406 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 16534 15856 397 176 0 15438 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 66136

Solver just ended. Dumping a history of the last processes samples

[startup+12.9019 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16554
/proc/meminfo: memFree=1740392/2055920 swapFree=4180424/4192956
[pid=16553] ppid=16551 vsize=65520 CPUtime=12.88
/proc/16553/stat : 16553 (xsolve) R 16551 16553 14475 0 -1 4194304 15904 0 0 0 1282 6 0 0 25 0 1 0 2002200397 67092480 15716 996147200 134512640 135237403 4294956240 18446744073709551615 4159148591 0 0 4096 0 0 0 0 17 0 0 0
/proc/16553/statm: 16380 15716 411 176 0 15284 0
Current children cumulated CPU time (s) 12.88
Current children cumulated vsize (KiB) 65520

Child status: 0
Real time (s): 12.9709
CPU time (s): 12.961
CPU user time (s): 12.88
CPU system time (s): 0.080987
CPU usage (%): 99.9235
Max. virtual memory (cumulated for all children) (KiB): 66136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.88
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15906
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 7
involuntary context switches= 52

runsolver used 0.016997 second user time and 0.041993 second system time

The end

Launcher Data (download as text)

Begin job on node33 at 2008-07-05 06:31:09
IDJOB=1084887
IDBENCH=57587
IDSOLVER=358
FILE ID=node33/1084887-1215232267
PBS_JOBID= 7881868
Free space on /tmp= 66452 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-6_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084887-1215232267/watcher-1084887-1215232267 -o /tmp/evaluation-result-1084887-1215232267/solver-1084887-1215232267 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084887-1215232267.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 3888b994eade183d2e4ca8097fc27fc8
RANDOM SEED=954817935

node33.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.231
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.231
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1802704 kB
Buffers:         21080 kB
Cached:         155804 kB
SwapCached:       6444 kB
Active:         154060 kB
Inactive:        37240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1802704 kB
SwapTotal:     4192956 kB
SwapFree:      4180424 kB
Dirty:           23164 kB
Writeback:           0 kB
Mapped:          21084 kB
Slab:            47196 kB
Committed_AS:  3693304 kB
PageTables:       1792 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66452 MiB
End job on node33 at 2008-07-05 06:31:22