Trace number 269524

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 3.1? (MO) 176.419 177.145

General information on the benchmark

Nameos-gp/
gp10-01-1093.xml
MD5SUM0da9d135f457ed0a2622be4bd1d9f01f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.327949
SatisfiableYES
(Un)Satisfiability was proved
Number of variables101
Number of constraints1000
Maximum constraint arity2
Maximum domain size1094
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1000
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/node76/watcher-269524-1168980941 -o ROOT/results/node76/solver-269524-1168980941 -C 1800 -M 900 /tmp/evaluation/269524-1168980941/VALCSP /tmp/evaluation/269524-1168980941/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: 1.87 1.40 0.92 4/73 18850
/proc/meminfo: memFree=1863296/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=3724 CPUtime=0
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 674 0 0 0 0 0 0 0 18 0 1 0 246491285 3813376 652 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5253163 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 931 653 64 8 0 602 0

[startup+0.107277 s]
/proc/loadavg: 1.87 1.40 0.92 4/73 18850
/proc/meminfo: memFree=1863296/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=8876 CPUtime=0.1
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 1971 0 0 0 10 0 0 0 18 0 1 0 246491285 9089024 1949 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 2219 1949 64 8 0 1890 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 8876

[startup+0.516351 s]
/proc/loadavg: 1.87 1.40 0.92 4/73 18850
/proc/meminfo: memFree=1863296/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=8876 CPUtime=0.5
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 1971 0 0 0 50 0 0 0 22 0 1 0 246491285 9089024 1949 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 2219 1949 64 8 0 1890 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8876

[startup+1.34051 s]
/proc/loadavg: 1.87 1.40 0.92 2/73 18854
/proc/meminfo: memFree=1850944/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=13628 CPUtime=1.33
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 3143 0 0 0 132 1 0 0 25 0 1 0 246491285 13955072 3121 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 3407 3121 64 8 0 3078 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 13628

[startup+2.97684 s]
/proc/loadavg: 1.87 1.40 0.92 3/78 18880
/proc/meminfo: memFree=1838040/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=23004 CPUtime=2.94
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 5488 0 0 0 292 2 0 0 25 0 1 0 246491285 23556096 5466 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 5751 5466 64 8 0 5422 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 23004

[startup+6.25948 s]
/proc/loadavg: 1.88 1.41 0.92 3/78 18880
/proc/meminfo: memFree=1800920/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=37000 CPUtime=6.2
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 9004 0 0 0 617 3 0 0 25 0 1 0 246491285 37888000 8982 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528646 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 9250 8982 64 8 0 8921 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 37000

[startup+12.7157 s]
/proc/loadavg: 1.89 1.42 0.93 3/78 18880
/proc/meminfo: memFree=1731480/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=74500 CPUtime=12.64
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 18382 0 0 0 1257 7 0 0 25 0 1 0 246491285 76288000 18360 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 18625 18360 64 8 0 18296 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 74500

[startup+25.5243 s]
/proc/loadavg: 1.92 1.45 0.94 3/78 18880
/proc/meminfo: memFree=1605656/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=135508 CPUtime=25.39
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 33621 0 0 0 2526 13 0 0 25 0 1 0 246491285 138760192 33599 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 33877 33599 64 8 0 33548 0
Current children cumulated CPU time (s) 25.39
Current children cumulated vsize (KiB) 135508

[startup+51.1483 s]
/proc/loadavg: 1.94 1.49 0.97 3/78 18880
/proc/meminfo: memFree=1304856/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=280888 CPUtime=50.92
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 69958 0 0 0 5065 27 0 0 25 0 1 0 246491285 287629312 69936 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 70222 69936 64 8 0 69893 0
Current children cumulated CPU time (s) 50.92
Current children cumulated vsize (KiB) 280888

[startup+102.392 s]
/proc/loadavg: 1.97 1.57 1.02 3/78 18880
/proc/meminfo: memFree=780888/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=543416 CPUtime=101.96
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 135599 0 0 0 10145 51 0 0 25 0 1 0 246491285 556457984 135577 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 135854 135577 64 8 0 135525 0
Current children cumulated CPU time (s) 101.96
Current children cumulated vsize (KiB) 543416

[startup+162.45 s]
/proc/loadavg: 1.99 1.64 1.08 3/78 18880
/proc/meminfo: memFree=154712/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=852856 CPUtime=161.79
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 212963 0 0 0 16100 79 0 0 25 0 1 0 246491285 873324544 212941 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 213214 212941 64 8 0 212885 0
Current children cumulated CPU time (s) 161.79
Current children cumulated vsize (KiB) 852856



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+177.001 s]
/proc/loadavg: 1.99 1.66 1.09 2/73 18893
/proc/meminfo: memFree=939256/2055888 swapFree=4095388/4096564
[pid=18849] ppid=18847 vsize=923248 CPUtime=176.27
/proc/18849/stat : 18849 (VALCSP) R 18847 18849 18560 0 -1 4194304 230546 0 0 0 17541 86 0 0 25 0 1 0 246491285 945405952 230524 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/18849/statm: 230812 230524 64 8 0 230483 0
Current children cumulated CPU time (s) 176.27
Current children cumulated vsize (KiB) 923248

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 177.145
CPU time (s): 176.419
CPU user time (s): 175.416
CPU system time (s): 1.00285
CPU usage (%): 99.5901
Max. virtual memory (cumulated for all children) (KiB): 923248

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 175.416
system time used= 1.00285
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230546
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= 2277

runsolver used 0.143978 s user time and 0.498924 s system time

The end



Launcher Data (download as text)




Begin job on node76 on Tue Jan 16 20:55:42 UTC 2007


IDJOB= 269524
IDBENCH= 6913
IDSOLVER= 90
FILE ID= node76/269524-1168980941

PBS_JOBID= 3566370

Free space on /tmp= 66652 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/os-gp/gp10-01-1093.xml
COMMAND LINE= /tmp/evaluation/269524-1168980941/VALCSP /tmp/evaluation/269524-1168980941/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-269524-1168980941 -o ROOT/results/node76/solver-269524-1168980941 -C 1800 -M 900  /tmp/evaluation/269524-1168980941/VALCSP /tmp/evaluation/269524-1168980941/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  0da9d135f457ed0a2622be4bd1d9f01f

RANDOM SEED= 586819221

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:       1863712 kB
Buffers:         14300 kB
Cached:          92184 kB
SwapCached:        276 kB
Active:          26552 kB
Inactive:        99960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1863712 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:             216 kB
Writeback:           0 kB
Mapped:          29224 kB
Slab:            51736 kB
Committed_AS:  7596316 kB
PageTables:       1624 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= 66652 MiB



End job on node76 on Tue Jan 16 20:58:39 UTC 2007