Trace number 268395

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) 83.6863 84.1344

General information on the benchmark

Namefapp/fapp16-20/fapp20/
fapp20-0420-4.xml
MD5SUMf874a5ab86ad025cdd8a1aac040ad57b
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 benchmark2.04969
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables420
Number of constraints4737
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4737
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/node23/watcher-268395-1168978776 -o ROOT/results/node23/solver-268395-1168978776 -C 1800 -M 900 /tmp/evaluation/268395-1168978776/VALCSP /tmp/evaluation/268395-1168978776/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: 1.70 1.45 0.84 5/86 5143
/proc/meminfo: memFree=1773512/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=2260 CPUtime=0
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 297 0 0 0 0 0 0 0 20 0 1 0 246271988 2314240 275 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 565 275 64 8 0 237 0

[startup+0.106362 s]
/proc/loadavg: 1.70 1.45 0.84 5/86 5143
/proc/meminfo: memFree=1773512/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=6700 CPUtime=0.09
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 1390 0 0 0 8 1 0 0 20 0 1 0 246271988 6860800 1368 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 1675 1368 64 8 0 1347 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6700

[startup+0.5144 s]
/proc/loadavg: 1.70 1.45 0.84 5/86 5143
/proc/meminfo: memFree=1773512/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=10660 CPUtime=0.49
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 2387 0 0 0 48 1 0 0 24 0 1 0 246271988 10915840 2365 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 2665 2365 64 8 0 2337 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 10660

[startup+1.33756 s]
/proc/loadavg: 1.70 1.45 0.84 3/86 5143
/proc/meminfo: memFree=1757448/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=19900 CPUtime=1.31
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 4697 0 0 0 129 2 0 0 25 0 1 0 246271988 20377600 4675 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 4975 4675 64 8 0 4647 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 19900

[startup+2.97587 s]
/proc/loadavg: 1.73 1.46 0.84 3/86 5143
/proc/meminfo: memFree=1745480/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=36928 CPUtime=2.93
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 8967 0 0 0 289 4 0 0 25 0 1 0 246271988 37814272 8945 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 9232 8945 64 8 0 8904 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 36928

[startup+6.25551 s]
/proc/loadavg: 1.73 1.46 0.84 3/86 5143
/proc/meminfo: memFree=1710408/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=70852 CPUtime=6.19
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 17451 0 0 0 611 8 0 0 25 0 1 0 246271988 72552448 17429 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528624 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 17713 17429 64 8 0 17385 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 70852

[startup+12.7198 s]
/proc/loadavg: 1.77 1.48 0.85 3/86 5143
/proc/meminfo: memFree=1638096/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=139756 CPUtime=12.59
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 34651 0 0 0 1243 16 0 0 25 0 1 0 246271988 143110144 34629 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528604 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 34939 34629 64 8 0 34611 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 139756

[startup+25.5332 s]
/proc/loadavg: 1.80 1.49 0.87 3/86 5143
/proc/meminfo: memFree=1509904/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=272416 CPUtime=25.28
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 67832 0 0 0 2497 31 0 0 25 0 1 0 246271988 278953984 67810 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528702 0 0 4096 0 0 0 0 17 1 0 0
/proc/5142/statm: 68104 67810 64 8 0 67776 0
Current children cumulated CPU time (s) 25.28
Current children cumulated vsize (KiB) 272416

[startup+51.1772 s]
/proc/loadavg: 1.87 1.53 0.89 3/86 5181
/proc/meminfo: memFree=1179080/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=545532 CPUtime=50.76
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 136116 0 0 0 5015 61 0 0 25 0 1 0 246271988 558624768 136094 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/5142/statm: 136383 136094 64 8 0 136055 0
Current children cumulated CPU time (s) 50.76
Current children cumulated vsize (KiB) 545532



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+83.9935 s]
/proc/loadavg: 1.93 1.58 0.93 3/86 5181
/proc/meminfo: memFree=446160/2055920 swapFree=4156112/4192956
[pid=5142] ppid=5140 vsize=922820 CPUtime=83.54
/proc/5142/stat : 5142 (VALCSP) R 5140 5142 4775 0 -1 4194304 230453 0 0 0 8256 98 0 0 25 0 1 0 246271988 944967680 230431 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/5142/statm: 230705 230431 64 8 0 230377 0
Current children cumulated CPU time (s) 83.54
Current children cumulated vsize (KiB) 922820

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 84.1344
CPU time (s): 83.6863
CPU user time (s): 82.5634
CPU system time (s): 1.12283
CPU usage (%): 99.4674
Max. virtual memory (cumulated for all children) (KiB): 922820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 82.5634
system time used= 1.12283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230453
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= 1975

runsolver used 0.102984 s user time and 0.264959 s system time

The end



Launcher Data (download as text)




Begin job on node23 on Tue Jan 16 20:19:36 UTC 2007


IDJOB= 268395
IDBENCH= 4019
IDSOLVER= 90
FILE ID= node23/268395-1168978776

PBS_JOBID= 3566209

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp16-20/fapp20/fapp20-0420-4.xml
COMMAND LINE= /tmp/evaluation/268395-1168978776/VALCSP /tmp/evaluation/268395-1168978776/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-268395-1168978776 -o ROOT/results/node23/solver-268395-1168978776 -C 1800 -M 900  /tmp/evaluation/268395-1168978776/VALCSP /tmp/evaluation/268395-1168978776/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  f874a5ab86ad025cdd8a1aac040ad57b

RANDOM SEED= 413053398

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		: 3000.265
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		: 3000.265
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:       1773992 kB
Buffers:         36732 kB
Cached:         130328 kB
SwapCached:       8040 kB
Active:          71040 kB
Inactive:       141336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1773992 kB
SwapTotal:     4192956 kB
SwapFree:      4156112 kB
Dirty:             888 kB
Writeback:           0 kB
Mapped:          61176 kB
Slab:            54424 kB
Committed_AS:  4452744 kB
PageTables:       2256 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= 66563 MiB



End job on node23 on Tue Jan 16 20:21:01 UTC 2007