Trace number 201727

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 3.0? (MO) 68.5666 68.9023

General information on the benchmark

Namefapp/fapp11-15/fapp13/
fapp13-2000-2.xml
MD5SUM2ac0102e63bae2a630109ac404c489a9
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 benchmark8.47871
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints25652
Maximum constraint arity2
Maximum domain size190
Number of constraints which are defined in extension0
Number of constraints which are defined in intension25652
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




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

command line: runsolver --timestamp -w ROOT/results/node56/watcher-201727-1168149466 -o ROOT/results/node56/solver-201727-1168149466 -C 1800 -M 900 /tmp/evaluation/201727-1168149466/VALCSP /tmp/evaluation/201727-1168149466/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: 2.91 2.38 2.16 5/81 30899
/proc/meminfo: memFree=1399056/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=1468 CPUtime=0
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 102 0 0 0 0 0 0 0 20 0 1 0 163344730 1503232 80 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134543268 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 367 80 62 8 0 39 0

[startup+0.105056 s]
/proc/loadavg: 2.91 2.38 2.16 5/81 30899
/proc/meminfo: memFree=1399056/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=54664 CPUtime=0.09
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 13427 0 0 0 3 6 0 0 20 0 1 0 163344730 55975936 13405 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 13666 13405 62 8 0 13338 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 54664

[startup+0.513068 s]
/proc/loadavg: 2.91 2.38 2.16 5/81 30899
/proc/meminfo: memFree=1399056/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=61340 CPUtime=0.5
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 14949 0 0 0 43 7 0 0 23 0 1 0 163344730 62812160 14927 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 15335 14927 65 8 0 15007 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 61340

[startup+1.33515 s]
/proc/loadavg: 2.91 2.38 2.16 3/81 30899
/proc/meminfo: memFree=1331280/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=71636 CPUtime=1.32
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 17521 0 0 0 123 9 0 0 25 0 1 0 163344730 73355264 17499 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 17909 17499 65 8 0 17581 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 71636

[startup+2.97631 s]
/proc/loadavg: 2.83 2.37 2.16 3/81 30899
/proc/meminfo: memFree=1315600/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=92888 CPUtime=2.95
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 22828 0 0 0 283 12 0 0 25 0 1 0 163344730 95117312 22806 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530444 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 23222 22806 65 8 0 22894 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 92888

[startup+6.26263 s]
/proc/loadavg: 2.83 2.37 2.16 3/81 30899
/proc/meminfo: memFree=1270480/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=133412 CPUtime=6.22
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 32951 0 0 0 604 18 0 0 25 0 1 0 163344730 136613888 32929 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 33353 32929 65 8 0 33025 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 133412

[startup+12.7323 s]
/proc/loadavg: 2.71 2.36 2.16 3/81 30899
/proc/meminfo: memFree=1183840/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=213932 CPUtime=12.65
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 53105 0 0 0 1235 30 0 0 25 0 1 0 163344730 219066368 53083 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 53483 53083 65 8 0 53155 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 213932

[startup+25.5475 s]
/proc/loadavg: 2.60 2.35 2.15 3/81 30899
/proc/meminfo: memFree=1023520/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=374848 CPUtime=25.42
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 93337 0 0 0 2489 53 0 0 25 0 1 0 163344730 383844352 93315 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530323 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 93712 93315 65 8 0 93384 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 374848

[startup+51.199 s]
/proc/loadavg: 2.39 2.32 2.15 3/81 30899
/proc/meminfo: memFree=687776/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=700672 CPUtime=50.95
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 174804 0 0 0 4995 100 0 0 25 0 1 0 163344730 717488128 174782 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 175168 174782 65 8 0 174840 0
Current children cumulated CPU time (s) 50.95
Current children cumulated vsize (KiB) 700672



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+68.7427 s]
/proc/loadavg: 2.35 2.31 2.15 3/81 30899
/proc/meminfo: memFree=451936/2055920 swapFree=4184772/4192956
[pid=30898] ppid=30896 vsize=922268 CPUtime=68.41
/proc/30898/stat : 30898 (VALCSP) R 30896 30898 30046 0 -1 4194304 230204 0 0 0 6708 133 0 0 25 0 1 0 163344730 944402432 230182 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530262 0 0 4096 0 0 0 0 17 1 0 0
/proc/30898/statm: 230567 230182 65 8 0 230239 0
Current children cumulated CPU time (s) 68.41
Current children cumulated vsize (KiB) 922268

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 68.9023
CPU time (s): 68.5666
CPU user time (s): 67.0808
CPU system time (s): 1.48577
CPU usage (%): 99.5127
Max. virtual memory (cumulated for all children) (KiB): 922268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 67.0808
system time used= 1.48577
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230204
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= 6
involuntary context switches= 821

runsolver used 0.099984 s user time and 0.218966 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Sun Jan  7 05:57:46 UTC 2007


IDJOB= 201727
IDBENCH= 3780
FILE ID= node56/201727-1168149466

PBS_JOBID= 3478379

Free space on /tmp= 66548 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp11-15/fapp13/fapp13-2000-2.xml
COMMAND LINE= /tmp/evaluation/201727-1168149466/VALCSP /tmp/evaluation/201727-1168149466/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-201727-1168149466 -o ROOT/results/node56/solver-201727-1168149466 -C 1800 -M 900  /tmp/evaluation/201727-1168149466/VALCSP /tmp/evaluation/201727-1168149466/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  2ac0102e63bae2a630109ac404c489a9

RANDOM SEED= 736186978

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		: 3000.232
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		: 3000.232
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:       1399536 kB
Buffers:         30248 kB
Cached:         308192 kB
SwapCached:       2104 kB
Active:         365336 kB
Inactive:       219168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1399536 kB
SwapTotal:     4192956 kB
SwapFree:      4184772 kB
Dirty:            3628 kB
Writeback:           0 kB
Mapped:         261708 kB
Slab:            56692 kB
Committed_AS:  3834548 kB
PageTables:       2420 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= 66548 MiB



End job on node56 on Sun Jan  7 05:58:55 UTC 2007