Trace number 268640

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
VALCSP 3.1UNSAT 0.224965 0.226483

DiagnosticValue
CHECKS2499500
NODES230

General information on the benchmark

Namerlfap/rlfapScensMod/
scen10-w1-f3.xml
MD5SUM1a6b0f77408f44fcd9d0a9f15ce8dc84
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.563914
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables680
Number of constraints1138
Maximum constraint arity2
Maximum domain size41
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1138
Global constraints used (with number of constraints)

Solver Data (download as text)

0.22	s UNSATISFIABLE
0.22	d CHECKS 2.4995e+06
0.22	d NODES 230

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node75/watcher-268640-1168979677 -o ROOT/results/node75/solver-268640-1168979677 -C 1800 -M 900 /tmp/evaluation/268640-1168979677/VALCSP /tmp/evaluation/268640-1168979677/unknown.xml 

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: 1.81 1.78 1.43 5/73 26450
/proc/meminfo: memFree=882024/2055920 swapFree=4184548/4192956
[pid=26449] ppid=26447 vsize=4372 CPUtime=0
/proc/26449/stat : 26449 (VALCSP) R 26447 26449 26093 0 -1 4194304 839 0 0 0 0 0 0 0 18 0 1 0 246367347 4476928 817 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/26449/statm: 1093 824 64 8 0 765 0

[startup+0.107381 s]
/proc/loadavg: 1.81 1.78 1.43 5/73 26450
/proc/meminfo: memFree=882024/2055920 swapFree=4184548/4192956
[pid=26449] ppid=26447 vsize=11500 CPUtime=0.1
/proc/26449/stat : 26449 (VALCSP) R 26447 26449 26093 0 -1 4194304 2608 0 0 0 9 1 0 0 18 0 1 0 246367347 11776000 2586 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/26449/statm: 2875 2586 64 8 0 2547 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11500

Child status: 0
Real time (s): 0.226483
CPU time (s): 0.224965
CPU user time (s): 0.201969
CPU system time (s): 0.022996
CPU usage (%): 99.3297
Max. virtual memory (cumulated for all children) (KiB): 17440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.201969
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4155
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= 8
involuntary context switches= 2

runsolver used 0.005999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node75 on Tue Jan 16 20:34:40 UTC 2007


IDJOB= 268640
IDBENCH= 5099
IDSOLVER= 90
FILE ID= node75/268640-1168979677

PBS_JOBID= 3566231

Free space on /tmp= 66556 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/rlfap/rlfapScensMod/scen10-w1-f3.xml
COMMAND LINE= /tmp/evaluation/268640-1168979677/VALCSP /tmp/evaluation/268640-1168979677/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-268640-1168979677 -o ROOT/results/node75/solver-268640-1168979677 -C 1800 -M 900  /tmp/evaluation/268640-1168979677/VALCSP /tmp/evaluation/268640-1168979677/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  1a6b0f77408f44fcd9d0a9f15ce8dc84

RANDOM SEED= 944705204

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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        882376 kB
Buffers:         20276 kB
Cached:         182564 kB
SwapCached:       2452 kB
Active:         925600 kB
Inactive:       183540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        882376 kB
SwapTotal:     4192956 kB
SwapFree:      4184548 kB
Dirty:             328 kB
Writeback:           0 kB
Mapped:         913588 kB
Slab:            47964 kB
Committed_AS:  6005980 kB
PageTables:       3500 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= 66556 MiB



End job on node75 on Tue Jan 16 20:34:43 UTC 2007