Trace number 202109

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) 84.0562 84.1081

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-6.xml
MD5SUM69cae328a8e1528c3c1a07afe5b8dbdc
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 benchmark7.14491
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints26753
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension26753
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/node45/watcher-202109-1168150566 -o ROOT/results/node45/solver-202109-1168150566 -C 1800 -M 900 /tmp/evaluation/202109-1168150566/VALCSP /tmp/evaluation/202109-1168150566/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: 0.09 0.45 0.88 4/68 14915
/proc/meminfo: memFree=1480824/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=3612 CPUtime=0
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 629 0 0 0 0 0 0 0 18 0 1 0 163456696 3698688 607 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534817 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 903 613 62 8 0 575 0

[startup+0.103323 s]
/proc/loadavg: 0.09 0.45 0.88 4/68 14915
/proc/meminfo: memFree=1480824/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=61100 CPUtime=0.09
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 14859 0 0 0 4 5 0 0 18 0 1 0 163456696 62566400 14837 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 15275 14837 65 8 0 14947 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 61100

[startup+0.511394 s]
/proc/loadavg: 0.09 0.45 0.88 4/68 14915
/proc/meminfo: memFree=1480824/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=65192 CPUtime=0.5
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 15898 0 0 0 44 6 0 0 21 0 1 0 163456696 66756608 15876 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 16298 15876 65 8 0 15970 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 65192

[startup+1.33154 s]
/proc/loadavg: 0.09 0.45 0.88 2/68 14915
/proc/meminfo: memFree=1410872/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=74564 CPUtime=1.32
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 18241 0 0 0 125 7 0 0 25 0 1 0 163456696 76353536 18219 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530234 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 18641 18219 65 8 0 18313 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 74564

[startup+2.96784 s]
/proc/loadavg: 0.09 0.45 0.88 2/68 14915
/proc/meminfo: memFree=1399544/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=88688 CPUtime=2.96
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 21779 0 0 0 287 9 0 0 25 0 1 0 163456696 90816512 21757 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530962 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 22172 21757 65 8 0 21844 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 88688

[startup+6.24744 s]
/proc/loadavg: 0.16 0.46 0.88 2/68 14918
/proc/meminfo: memFree=1366328/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=121688 CPUtime=6.23
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 30029 0 0 0 611 12 0 0 25 0 1 0 163456696 124608512 30007 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 30422 30007 65 8 0 30094 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 121688

[startup+12.7036 s]
/proc/loadavg: 0.23 0.47 0.88 2/68 14960
/proc/meminfo: memFree=1290608/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=187424 CPUtime=12.68
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 46464 0 0 0 1249 19 0 0 25 0 1 0 163456696 191922176 46442 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 46856 46446 65 8 0 46528 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 187424

[startup+25.564 s]
/proc/loadavg: 0.63 0.54 0.90 3/81 14974
/proc/meminfo: memFree=1010320/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=324704 CPUtime=25.53
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 80773 0 0 0 2519 34 0 0 25 0 1 0 163456696 332496896 80751 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 81176 80751 65 8 0 80848 0
Current children cumulated CPU time (s) 25.53
Current children cumulated vsize (KiB) 324704

[startup+51.2296 s]
/proc/loadavg: 1.15 0.68 0.93 3/81 14974
/proc/meminfo: memFree=552912/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=586856 CPUtime=51.18
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 146313 0 0 0 5051 67 0 0 25 0 1 0 163456696 600940544 146291 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 146714 146291 65 8 0 146386 0
Current children cumulated CPU time (s) 51.18
Current children cumulated vsize (KiB) 586856



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+83.9625 s]
/proc/loadavg: 1.53 0.82 0.97 3/81 14974
/proc/meminfo: memFree=47248/2055920 swapFree=4184048/4192956
[pid=14914] ppid=14912 vsize=922408 CPUtime=83.91
/proc/14914/stat : 14914 (VALCSP) R 14912 14914 13985 0 -1 4194304 230209 0 0 0 8281 110 0 0 25 0 1 0 163456696 944545792 230187 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530247 0 0 4096 0 0 0 0 17 1 0 0
/proc/14914/statm: 230602 230187 65 8 0 230274 0
Current children cumulated CPU time (s) 83.91
Current children cumulated vsize (KiB) 922408

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 84.1081
CPU time (s): 84.0562
CPU user time (s): 82.8104
CPU system time (s): 1.24581
CPU usage (%): 99.9383
Max. virtual memory (cumulated for all children) (KiB): 922408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 82.8104
system time used= 1.24581
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230209
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= 172

runsolver used 0.087986 s user time and 0.225965 s system time

The end



Launcher Data (download as text)




Begin job on node45 on Sun Jan  7 06:16:13 UTC 2007


IDJOB= 202109
IDBENCH= 3813
FILE ID= node45/202109-1168150566

PBS_JOBID= 3478429

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-6.xml
COMMAND LINE= /tmp/evaluation/202109-1168150566/VALCSP /tmp/evaluation/202109-1168150566/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-202109-1168150566 -o ROOT/results/node45/solver-202109-1168150566 -C 1800 -M 900  /tmp/evaluation/202109-1168150566/VALCSP /tmp/evaluation/202109-1168150566/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  69cae328a8e1528c3c1a07afe5b8dbdc

RANDOM SEED= 457542917

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		: 3000.259
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		: 3000.259
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:       1481304 kB
Buffers:         39240 kB
Cached:         461588 kB
SwapCached:       3188 kB
Active:         252804 kB
Inactive:       262632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1481304 kB
SwapTotal:     4192956 kB
SwapFree:      4184048 kB
Dirty:            3800 kB
Writeback:           0 kB
Mapped:          20108 kB
Slab:            45012 kB
Committed_AS:  3034372 kB
PageTables:       1596 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= 66541 MiB



End job on node45 on Sun Jan  7 06:17:41 UTC 2007