Trace number 1085002

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 4.28835 4.33997

DiagnosticValue
ASSIGNMENTS5921
CHECKS286125

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-0_ext.xml
MD5SUMa42b1fcf5ad10b80deb15852b7f7abc6
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 benchmark3.39448
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)

0.00/0.04	c mistral-prime version 1.313
4.14/4.24	s SATISFIABLE
4.14/4.24	v 2 0 0 3 3 1 3 0 2 4 3 1 4 0 0 3 0 0 0 2
4.14/4.24	d CHECKS 286125
4.14/4.24	d ASSIGNMENTS 5921

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-1085002-1215232515/watcher-1085002-1215232515 -o /tmp/evaluation-result-1085002-1215232515/solver-1085002-1215232515 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1085002-1215232515.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: 2.04 2.05 2.00 4/73 31795
/proc/meminfo: memFree=1505904/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=8896 CPUtime=0.19
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 1467 0 0 0 19 0 0 0 19 0 1 0 2002224914 9109504 1433 996147200 134512640 135237403 4294956240 18446744073709551615 134579559 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 2224 1433 354 176 0 1128 0

[startup+0.262598 s]
/proc/loadavg: 2.04 2.05 2.00 4/73 31795
/proc/meminfo: memFree=1505904/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=9688 CPUtime=0.23
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 1681 0 0 0 23 0 0 0 19 0 1 0 2002224914 9920512 1647 996147200 134512640 135237403 4294956240 18446744073709551615 134579559 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 2422 1647 354 176 0 1326 0
Current children cumulated CPU time (s) 0.23
Current children cumulated vsize (KiB) 9688

[startup+0.3026 s]
/proc/loadavg: 2.04 2.05 2.00 4/73 31795
/proc/meminfo: memFree=1505904/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=10480 CPUtime=0.28
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 1884 0 0 0 27 1 0 0 19 0 1 0 2002224914 10731520 1850 996147200 134512640 135237403 4294956240 18446744073709551615 134639383 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 2620 1850 354 176 0 1524 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 10480

[startup+0.402622 s]
/proc/loadavg: 2.04 2.05 2.00 4/73 31795
/proc/meminfo: memFree=1505904/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=12636 CPUtime=0.38
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 2395 0 0 0 37 1 0 0 20 0 1 0 2002224914 12939264 2361 996147200 134512640 135237403 4294956240 18446744073709551615 134579559 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 3159 2361 354 176 0 2063 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 12636

[startup+0.702652 s]
/proc/loadavg: 2.04 2.05 2.00 4/73 31795
/proc/meminfo: memFree=1505904/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=18796 CPUtime=0.67
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 3929 0 0 0 65 2 0 0 23 0 1 0 2002224914 19247104 3895 996147200 134512640 135237403 4294956240 18446744073709551615 134579559 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 4699 3895 354 176 0 3603 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 18796

[startup+1.50174 s]
/proc/loadavg: 2.03 2.05 2.00 3/74 31796
/proc/meminfo: memFree=1481704/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=34676 CPUtime=1.46
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 7973 0 0 0 142 4 0 0 25 0 1 0 2002224914 35508224 7939 996147200 134512640 135237403 4294956240 18446744073709551615 134666462 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 8669 7939 354 176 0 7573 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 34676

[startup+3.10192 s]
/proc/loadavg: 2.03 2.05 2.00 3/74 31796
/proc/meminfo: memFree=1459176/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=66252 CPUtime=3.05
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 15904 0 0 0 295 10 0 0 25 0 1 0 2002224914 67842048 15870 996147200 134512640 135237403 4294956240 18446744073709551615 135093088 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 16563 15870 397 176 0 15467 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 66252

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

[startup+3.30193 s]
/proc/loadavg: 2.03 2.05 2.00 3/74 31796
/proc/meminfo: memFree=1459176/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=66252 CPUtime=3.25
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 15904 0 0 0 315 10 0 0 25 0 1 0 2002224914 67842048 15870 996147200 134512640 135237403 4294956240 18446744073709551615 135011668 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 16563 15870 397 176 0 15467 0
Current children cumulated CPU time (s) 3.25
Current children cumulated vsize (KiB) 66252

[startup+4.10201 s]
/proc/loadavg: 2.03 2.05 2.00 3/74 31796
/proc/meminfo: memFree=1443880/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=66256 CPUtime=4.04
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 15905 0 0 0 394 10 0 0 25 0 1 0 2002224914 67846144 15871 996147200 134512640 135237403 4294956240 18446744073709551615 134817905 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 16564 15871 397 176 0 15468 0
Current children cumulated CPU time (s) 4.04
Current children cumulated vsize (KiB) 66256

[startup+4.30105 s]
/proc/loadavg: 2.03 2.05 2.00 3/74 31796
/proc/meminfo: memFree=1443880/2055920 swapFree=4179916/4192956
[pid=31795] ppid=31793 vsize=62868 CPUtime=4.24
/proc/31795/stat : 31795 (xsolve) R 31793 31795 31347 0 -1 4194304 15919 0 0 0 414 10 0 0 25 0 1 0 2002224914 64376832 15038 996147200 134512640 135237403 4294956240 18446744073709551615 4159148591 0 0 4096 0 0 0 0 17 1 0 0
/proc/31795/statm: 15717 15038 411 176 0 14621 0
Current children cumulated CPU time (s) 4.24
Current children cumulated vsize (KiB) 62868

Child status: 0
Real time (s): 4.33997
CPU time (s): 4.28835
CPU user time (s): 4.16837
CPU system time (s): 0.119981
CPU usage (%): 98.8105
Max. virtual memory (cumulated for all children) (KiB): 66256

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.16837
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15921
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= 102

runsolver used 0.008998 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node37 at 2008-07-05 06:35:17
IDJOB=1085002
IDBENCH=57592
IDSOLVER=358
FILE ID=node37/1085002-1215232515
PBS_JOBID= 7881909
Free space on /tmp= 66460 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-0_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1085002-1215232515/watcher-1085002-1215232515 -o /tmp/evaluation-result-1085002-1215232515/solver-1085002-1215232515 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1085002-1215232515.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= a42b1fcf5ad10b80deb15852b7f7abc6
RANDOM SEED=864556815

node37.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		: 3000.236
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		: 3000.236
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:       1506384 kB
Buffers:         36932 kB
Cached:         278832 kB
SwapCached:       6964 kB
Active:         409156 kB
Inactive:        79236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1506384 kB
SwapTotal:     4192956 kB
SwapFree:      4179916 kB
Dirty:           23020 kB
Writeback:           0 kB
Mapped:         178964 kB
Slab:            46076 kB
Committed_AS:  3722372 kB
PageTables:       2168 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66456 MiB
End job on node37 at 2008-07-05 06:35:21