Trace number 204414

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) 77.2943 77.5976

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/node75/watcher-204414-1168165786 -o ROOT/results/node75/solver-204414-1168165786 -C 1800 -M 900 /tmp/evaluation/204414-1168165786/VALCSP /tmp/evaluation/204414-1168165786/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+0.108812 s]
/proc/loadavg: 1.92 1.49 1.58 6/74 20931
/proc/meminfo: memFree=1685304/2055920 swapFree=4184496/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.92 1.49 1.58 6/74 20931
/proc/meminfo: memFree=1685304/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=6700 CPUtime=0.09
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 1390 0 0 0 9 0 0 0 21 0 1 0 164977974 6860800 1368 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134540271 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 1675 1368 64 8 0 1347 0

[startup+0.51685 s]
/proc/loadavg: 1.92 1.49 1.58 6/74 20931
/proc/meminfo: memFree=1685304/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=11188 CPUtime=0.5
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 2520 0 0 0 49 1 0 0 25 0 1 0 164977974 11456512 2498 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530274 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 2797 2498 64 8 0 2469 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 11188

[startup+1.33795 s]
/proc/loadavg: 1.92 1.49 1.58 3/74 20931
/proc/meminfo: memFree=1668920/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=22012 CPUtime=1.32
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 5220 0 0 0 129 3 0 0 25 0 1 0 164977974 22540288 5198 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530398 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 5503 5198 64 8 0 5175 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 22012

[startup+2.97515 s]
/proc/loadavg: 1.92 1.50 1.58 3/74 20931
/proc/meminfo: memFree=1654648/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=41416 CPUtime=2.95
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 10066 0 0 0 289 6 0 0 25 0 1 0 164977974 42409984 10044 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530293 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 10354 10044 64 8 0 10026 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 41416

[startup+6.26453 s]
/proc/loadavg: 1.92 1.50 1.58 3/74 20931
/proc/meminfo: memFree=1613432/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=80884 CPUtime=6.22
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 19948 0 0 0 611 11 0 0 25 0 1 0 164977974 82825216 19926 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 20221 19926 64 8 0 19893 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 80884

[startup+12.7223 s]
/proc/loadavg: 1.93 1.52 1.58 3/74 20931
/proc/meminfo: memFree=1528896/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=158368 CPUtime=12.65
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 39333 0 0 0 1244 21 0 0 25 0 1 0 164977974 162168832 39311 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530201 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 39592 39311 64 8 0 39264 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 158368

[startup+25.5468 s]
/proc/loadavg: 1.94 1.53 1.59 3/74 20931
/proc/meminfo: memFree=1369408/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=313600 CPUtime=25.43
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 78129 0 0 0 2503 40 0 0 25 0 1 0 164977974 321126400 78107 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/20930/statm: 78400 78107 64 8 0 78072 0
Current children cumulated CPU time (s) 25.43
Current children cumulated vsize (KiB) 313600

[startup+51.1898 s]
/proc/loadavg: 1.96 1.57 1.60 2/68 20951
/proc/meminfo: memFree=1233848/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=619852 CPUtime=50.95
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 154710 0 0 0 5016 79 0 0 25 0 1 0 164977974 634728448 154688 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530198 0 0 4096 0 0 0 0 17 1 0 0
/proc/20930/statm: 154963 154688 64 8 0 154635 0
Current children cumulated CPU time (s) 50.95
Current children cumulated vsize (KiB) 619852



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+77.4559 s]
/proc/loadavg: 1.99 1.61 1.61 3/81 21012
/proc/meminfo: memFree=784208/2055920 swapFree=4184496/4192956
[pid=20930] ppid=20928 vsize=922424 CPUtime=77.15
/proc/20930/stat : 20930 (VALCSP) R 20928 20930 19854 0 -1 4194304 230363 0 0 0 7595 120 0 0 25 0 1 0 164977974 944562176 230341 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530249 0 0 4096 0 0 0 0 17 1 0 0
/proc/20930/statm: 230606 230341 64 8 0 230278 0
Current children cumulated CPU time (s) 77.15
Current children cumulated vsize (KiB) 922424

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 77.5976
CPU time (s): 77.2943
CPU user time (s): 75.9515
CPU system time (s): 1.3428
CPU usage (%): 99.6091
Max. virtual memory (cumulated for all children) (KiB): 922424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 75.9515
system time used= 1.34279
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230363
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= 812

runsolver used 0.075988 s user time and 0.210967 s system time

The end



Launcher Data (download as text)




Begin job on node75 on Sun Jan  7 10:29:46 UTC 2007


IDJOB= 204414
IDBENCH= 4020
FILE ID= node75/204414-1168165786

PBS_JOBID= 3478644

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp16-20/fapp20/fapp20-0420-2.xml
COMMAND LINE= /tmp/evaluation/204414-1168165786/VALCSP /tmp/evaluation/204414-1168165786/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-204414-1168165786 -o ROOT/results/node75/solver-204414-1168165786 -C 1800 -M 900  /tmp/evaluation/204414-1168165786/VALCSP /tmp/evaluation/204414-1168165786/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  fd5c1eee76f4efbc6094f2ef51ebd688

RANDOM SEED= 132170678

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	: 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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1687512 kB
Buffers:         42136 kB
Cached:         108252 kB
SwapCached:       2680 kB
Active:         233928 kB
Inactive:        78512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1687512 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:             768 kB
Writeback:           0 kB
Mapped:         169180 kB
Slab:            41020 kB
Committed_AS:  3643056 kB
PageTables:       2092 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= 66555 MiB



End job on node75 on Sun Jan  7 10:31:04 UTC 2007