Trace number 200811

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) 82.9214 83.0316

General information on the benchmark

Namefapp/fapp11-15/fapp14/
fapp14-2500-0.xml
MD5SUM48c22b4658f7e95cf77401e5a2d21209
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 benchmark11.5512
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2500
Number of constraints40767
Maximum constraint arity2
Maximum domain size362
Number of constraints which are defined in extension0
Number of constraints which are defined in intension40767
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/node30/watcher-200811-1168143602 -o ROOT/results/node30/solver-200811-1168143602 -C 1800 -M 900 /tmp/evaluation/200811-1168143602/VALCSP /tmp/evaluation/200811-1168143602/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: 0.92 0.98 1.13 6/82 22761
/proc/meminfo: memFree=1749184/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=7436 CPUtime=0
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 1521 0 0 0 0 0 0 0 18 0 1 0 162754152 7614464 1499 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534827 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 1859 1506 62 8 0 1531 0

[startup+0.102653 s]
/proc/loadavg: 0.92 0.98 1.13 6/82 22761
/proc/meminfo: memFree=1749184/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=68972 CPUtime=0.09
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 16468 0 0 0 2 7 0 0 18 0 1 0 162754152 70627328 16446 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534817 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 17243 16454 62 8 0 16915 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 68972

[startup+0.514685 s]
/proc/loadavg: 0.92 0.98 1.13 6/82 22761
/proc/meminfo: memFree=1749184/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=95932 CPUtime=0.49
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 22949 0 0 0 39 10 0 0 22 0 1 0 162754152 98234368 22927 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 23983 22927 65 8 0 23655 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 95932

[startup+1.33874 s]
/proc/loadavg: 1.09 1.02 1.14 4/94 22810
/proc/meminfo: memFree=1607712/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=103720 CPUtime=1.32
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 24902 0 0 0 121 11 0 0 25 0 1 0 162754152 106209280 24880 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 25930 24880 65 8 0 25602 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 103720

[startup+2.97584 s]
/proc/loadavg: 1.09 1.02 1.14 4/94 22810
/proc/meminfo: memFree=1586912/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=119296 CPUtime=2.95
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 28807 0 0 0 282 13 0 0 25 0 1 0 162754152 122159104 28785 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530540 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 29824 28785 65 8 0 29496 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 119296

[startup+6.25505 s]
/proc/loadavg: 1.09 1.02 1.14 3/94 22810
/proc/meminfo: memFree=1527528/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=152560 CPUtime=6.23
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 37117 0 0 0 605 18 0 0 25 0 1 0 162754152 156221440 37095 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530881 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 38140 37095 65 8 0 37812 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 152560

[startup+12.6564 s]
/proc/loadavg: 1.31 1.06 1.16 3/94 22810
/proc/meminfo: memFree=1428008/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=219088 CPUtime=12.63
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 53732 0 0 0 1236 27 0 0 25 0 1 0 162754152 224346112 53710 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 54772 53710 65 8 0 54444 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 219088

[startup+25.5533 s]
/proc/loadavg: 1.81 1.18 1.19 4/94 22810
/proc/meminfo: memFree=1239592/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=351220 CPUtime=25.53
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 86792 0 0 0 2507 46 0 0 25 0 1 0 162754152 359649280 86770 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530216 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 87805 86770 65 8 0 87477 0
Current children cumulated CPU time (s) 25.53
Current children cumulated vsize (KiB) 351220

[startup+51.2506 s]
/proc/loadavg: 1.94 1.27 1.22 4/94 22810
/proc/meminfo: memFree=901032/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=608884 CPUtime=51.16
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 151195 0 0 0 5035 81 0 0 25 0 1 0 162754152 623497216 151173 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 152221 151173 65 8 0 151893 0
Current children cumulated CPU time (s) 51.16
Current children cumulated vsize (KiB) 608884



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+82.8914 s]
/proc/loadavg: 1.96 1.34 1.25 3/94 22810
/proc/meminfo: memFree=520104/2055920 swapFree=4191880/4192956
[pid=22759] ppid=22757 vsize=922780 CPUtime=82.78
/proc/22759/stat : 22759 (VALCSP) R 22757 22759 22689 0 -1 4194304 229691 0 0 0 8149 129 0 0 25 0 1 0 162754152 944926720 229669 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530859 0 0 4096 0 0 0 0 17 0 0 0
/proc/22759/statm: 230695 229669 65 8 0 230367 0
Current children cumulated CPU time (s) 82.78
Current children cumulated vsize (KiB) 922780

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 83.0316
CPU time (s): 82.9214
CPU user time (s): 81.4916
CPU system time (s): 1.42978
CPU usage (%): 99.8672
Max. virtual memory (cumulated for all children) (KiB): 922780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 81.4916
system time used= 1.42978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229691
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= 460

runsolver used 0.097985 s user time and 0.283956 s system time

The end



Launcher Data (download as text)




Begin job on node30 on Sun Jan  7 04:20:02 UTC 2007


IDJOB= 200811
IDBENCH= 3728
FILE ID= node30/200811-1168143602

PBS_JOBID= 3478127

Free space on /tmp= 66477 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp11-15/fapp14/fapp14-2500-0.xml
COMMAND LINE= /tmp/evaluation/200811-1168143602/VALCSP /tmp/evaluation/200811-1168143602/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-200811-1168143602 -o ROOT/results/node30/solver-200811-1168143602 -C 1800 -M 900  /tmp/evaluation/200811-1168143602/VALCSP /tmp/evaluation/200811-1168143602/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  48c22b4658f7e95cf77401e5a2d21209

RANDOM SEED= 57560671

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		: 3000.234
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		: 3000.234
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:       1749264 kB
Buffers:         21796 kB
Cached:         159224 kB
SwapCached:        268 kB
Active:         182620 kB
Inactive:        54992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1749264 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           14424 kB
Writeback:           0 kB
Mapped:          74540 kB
Slab:            53916 kB
Committed_AS:  3345340 kB
PageTables:       2176 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= 66477 MiB



End job on node30 on Sun Jan  7 04:21:25 UTC 2007