Trace number 268396

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) 86.4609 87.1104

General information on the benchmark

Namefapp/fapp16-20/fapp20/
fapp20-0420-2.xml
MD5SUMfd5c1eee76f4efbc6094f2ef51ebd688
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 benchmark1.91171
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/node55/watcher-268396-1168978807 -o ROOT/results/node55/solver-268396-1168978807 -C 1800 -M 900 /tmp/evaluation/268396-1168978807/VALCSP /tmp/evaluation/268396-1168978807/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


[startup+0.10576 s]
/proc/loadavg: 1.92 1.88 1.23 5/73 8681
/proc/meminfo: memFree=1487784/2055920 swapFree=4192192/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.92 1.88 1.23 5/73 8681
/proc/meminfo: memFree=1487784/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=6700 CPUtime=0.09
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 1390 0 0 0 9 0 0 0 20 0 1 0 246279014 6860800 1368 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 1675 1368 64 8 0 1347 0

[startup+0.513798 s]
/proc/loadavg: 1.92 1.88 1.23 5/73 8681
/proc/meminfo: memFree=1487784/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=10660 CPUtime=0.5
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 2387 0 0 0 49 1 0 0 24 0 1 0 246279014 10915840 2365 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528702 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 2665 2365 64 8 0 2337 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10660

[startup+1.33488 s]
/proc/loadavg: 1.92 1.88 1.23 3/73 8681
/proc/meminfo: memFree=1472040/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=20428 CPUtime=1.31
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 4824 0 0 0 130 1 0 0 25 0 1 0 246279014 20918272 4802 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528612 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 5107 4802 64 8 0 4779 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 20428

[startup+2.97204 s]
/proc/loadavg: 1.92 1.88 1.23 3/73 8681
/proc/meminfo: memFree=1459752/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=37852 CPUtime=2.94
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 9189 0 0 0 290 4 0 0 25 0 1 0 246279014 38760448 9167 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 9463 9167 64 8 0 9135 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 37852

[startup+6.25835 s]
/proc/loadavg: 1.93 1.88 1.23 3/73 8681
/proc/meminfo: memFree=1423656/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=72304 CPUtime=6.2
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 17804 0 0 0 614 6 0 0 25 0 1 0 246279014 74039296 17782 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528576 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 18076 17782 64 8 0 17748 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 72304

[startup+12.714 s]
/proc/loadavg: 1.93 1.88 1.23 3/73 8681
/proc/meminfo: memFree=1349992/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=142528 CPUtime=12.6
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 35362 0 0 0 1247 13 0 0 25 0 1 0 246279014 145948672 35340 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 35632 35340 64 8 0 35304 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 142528

[startup+25.5342 s]
/proc/loadavg: 1.95 1.89 1.25 3/73 8681
/proc/meminfo: memFree=1218088/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=278620 CPUtime=25.33
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 69379 0 0 0 2506 27 0 0 25 0 1 0 246279014 285306880 69357 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 69655 69357 64 8 0 69327 0
Current children cumulated CPU time (s) 25.33
Current children cumulated vsize (KiB) 278620

[startup+51.1737 s]
/proc/loadavg: 1.96 1.90 1.27 3/73 8681
/proc/meminfo: memFree=946344/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=546324 CPUtime=50.79
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 136332 0 0 0 5024 55 0 0 25 0 1 0 246279014 559435776 136310 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528924 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 136581 136310 64 8 0 136253 0
Current children cumulated CPU time (s) 50.79
Current children cumulated vsize (KiB) 546324



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+86.9641 s]
/proc/loadavg: 1.98 1.91 1.29 3/73 8681
/proc/meminfo: memFree=565672/2055920 swapFree=4192192/4192956
[pid=8680] ppid=8678 vsize=922160 CPUtime=86.31
/proc/8680/stat : 8680 (VALCSP) R 8678 8680 8240 0 -1 4194304 230272 0 0 0 8537 94 0 0 25 0 1 0 246279014 944291840 230250 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/8680/statm: 230540 230250 64 8 0 230212 0
Current children cumulated CPU time (s) 86.31
Current children cumulated vsize (KiB) 922160

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 87.1104
CPU time (s): 86.4609
CPU user time (s): 85.378
CPU system time (s): 1.08283
CPU usage (%): 99.2543
Max. virtual memory (cumulated for all children) (KiB): 922160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 85.378
system time used= 1.08283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230272
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= 5
involuntary context switches= 1898

runsolver used 0.090986 s user time and 0.230964 s system time

The end



Launcher Data (download as text)




Begin job on node55 on Tue Jan 16 20:20:07 UTC 2007


IDJOB= 268396
IDBENCH= 4020
IDSOLVER= 90
FILE ID= node55/268396-1168978807

PBS_JOBID= 3566145

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp16-20/fapp20/fapp20-0420-2.xml
COMMAND LINE= /tmp/evaluation/268396-1168978807/VALCSP /tmp/evaluation/268396-1168978807/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-268396-1168978807 -o ROOT/results/node55/solver-268396-1168978807 -C 1800 -M 900  /tmp/evaluation/268396-1168978807/VALCSP /tmp/evaluation/268396-1168978807/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  fd5c1eee76f4efbc6094f2ef51ebd688

RANDOM SEED= 873373072

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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1488584 kB
Buffers:         49396 kB
Cached:         415660 kB
SwapCached:        268 kB
Active:         156888 kB
Inactive:       332152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1488584 kB
SwapTotal:     4192956 kB
SwapFree:      4192192 kB
Dirty:             696 kB
Writeback:           0 kB
Mapped:          33736 kB
Slab:            63688 kB
Committed_AS:  5006200 kB
PageTables:       1684 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= 66564 MiB



End job on node55 on Tue Jan 16 20:21:35 UTC 2007