Trace number 200609

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, and are wall clock time (not CPU 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 2006-12-04SAT 0.106983 0.109484

General information on the benchmark

Namecomposed/composed-25-10-20/
composed-25-10-20-3_ext.xml
MD5SUM1c405978841aa835f88e281951baa740
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.066989
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables105
Number of constraints620
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension620
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables.............    0
0.10	c 	relations............. 0.04
0.10	c 	constraints........... 0.03
0.10	c Allocating memory
0.10	c 
0.10	c time limit = -1
0.10	c heuristic = dom/wdeg
0.10	c restart policy = No restart
0.10	c 
0.10	c Solving
0.10	c
0.10	s SATISFIABLE
0.10	v 5 6 5 2 4 6 9 1 5 0 0 9 5 6 5 9 0 4 0 1 4 9 0 3 4 7 7 1 9 5 2 5 2 6 9 2 7 1 9 9 3 2 4 8 0 2 1 9 2 3 7 0 3 3 5 4 9 2 5 5 6 0 7 6 5 8 2 8 3 5 0 2 7 9 6 2 3 8 0 2 7 2 4 4 7 7 3 1 7 8 6 3 7 4 4 0 9 5 2 1 9 8 4 0 0
0.10	d          SAT       470 BTS      0.02 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node76/watcher-200609-1168143167 -o ROOT/results/node76/solver-200609-1168143167 -C 1800 -M 900 /tmp/evaluation/200609-1168143167/mistral/bin/solver /tmp/evaluation/200609-1168143167/unknown.xml -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.85 1.97 1.99 5/79 18278
/proc/meminfo: memFree=1368248/2055888 swapFree=4095388/4096564
[pid=18277] ppid=18275 vsize=6800 CPUtime=0
/proc/18277/stat : 18277 (solver) R 18275 18277 14124 0 -1 4194304 420 0 0 0 0 0 0 0 18 0 1 0 162714075 6963200 400 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4781348 0 0 4096 0 0 0 0 17 0 0 0
/proc/18277/statm: 1700 402 363 92 0 30 0

[startup+0.103348 s]
/proc/loadavg: 1.85 1.97 1.99 5/79 18278
/proc/meminfo: memFree=1368248/2055888 swapFree=4095388/4096564
[pid=18277] ppid=18275 vsize=7580 CPUtime=0.09
/proc/18277/stat : 18277 (solver) R 18275 18277 14124 0 -1 4194304 976 0 0 0 9 0 0 0 18 0 1 0 162714075 7761920 945 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637613 0 0 4096 0 0 0 0 17 0 0 0
/proc/18277/statm: 1895 945 709 92 0 238 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7580

Child status: 0
Real time (s): 0.109484
CPU time (s): 0.106983
CPU user time (s): 0.100984
CPU system time (s): 0.005999
CPU usage (%): 97.7157
Max. virtual memory (cumulated for all children) (KiB): 7580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.100984
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 986
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= 13
involuntary context switches= 1

runsolver used 0.003999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Sun Jan  7 04:12:50 UTC 2007


IDJOB= 200609
IDBENCH= 3717
FILE ID= node76/200609-1168143167

PBS_JOBID= 3478048

Free space on /tmp= 66630 MiB

BENCH NAME= HOME/pub/bench/CPAI06/composed/composed-25-10-20/composed-25-10-20-3_ext.xml
COMMAND LINE= /tmp/evaluation/200609-1168143167/mistral/bin/solver /tmp/evaluation/200609-1168143167/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-200609-1168143167 -o ROOT/results/node76/solver-200609-1168143167 -C 1800 -M 900  /tmp/evaluation/200609-1168143167/mistral/bin/solver /tmp/evaluation/200609-1168143167/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  1c405978841aa835f88e281951baa740

RANDOM SEED= 970612908

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1368664 kB
Buffers:         50500 kB
Cached:         470264 kB
SwapCached:        456 kB
Active:         392548 kB
Inactive:       240032 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1368664 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            3252 kB
Writeback:           0 kB
Mapped:         119552 kB
Slab:            40216 kB
Committed_AS:  6100664 kB
PageTables:       1968 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66630 MiB



End job on node76 on Sun Jan  7 04:12:50 UTC 2007