Trace number 233167

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) 221.254 221.959

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-105-7.xml
MD5SUM374810fca23912defb7b4a24b5ed2d7b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.635903
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1332
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
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/node56/watcher-233167-1168324901 -o ROOT/results/node56/solver-233167-1168324901 -C 1800 -M 900 /tmp/evaluation/233167-1168324901/VALCSP /tmp/evaluation/233167-1168324901/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: 1.91 1.29 1.27 5/74 18903
/proc/meminfo: memFree=1431192/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=2660 CPUtime=0
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 403 0 0 0 0 0 0 0 20 0 1 0 180888249 2723840 381 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 665 381 62 8 0 337 0

[startup+0.108024 s]
/proc/loadavg: 1.91 1.29 1.27 5/74 18903
/proc/meminfo: memFree=1431192/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=22048 CPUtime=0.09
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 5228 0 0 0 7 2 0 0 20 0 1 0 180888249 22577152 5206 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 5512 5206 65 8 0 5184 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 22048

[startup+0.520062 s]
/proc/loadavg: 1.91 1.29 1.27 5/74 18903
/proc/meminfo: memFree=1431192/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=22048 CPUtime=0.5
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 5228 0 0 0 48 2 0 0 24 0 1 0 180888249 22577152 5206 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530236 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 5512 5206 65 8 0 5184 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 22048

[startup+1.34014 s]
/proc/loadavg: 1.91 1.29 1.27 3/74 18903
/proc/meminfo: memFree=1410520/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=22048 CPUtime=1.31
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 5228 0 0 0 129 2 0 0 25 0 1 0 180888249 22577152 5206 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 5512 5206 65 8 0 5184 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 22048

[startup+2.9763 s]
/proc/loadavg: 1.91 1.29 1.27 3/74 18903
/proc/meminfo: memFree=1404248/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=28272 CPUtime=2.94
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 6786 0 0 0 291 3 0 0 25 0 1 0 180888249 28950528 6764 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 7068 6764 65 8 0 6740 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 28272

[startup+6.25562 s]
/proc/loadavg: 1.91 1.30 1.28 3/74 18903
/proc/meminfo: memFree=1391640/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=40912 CPUtime=6.2
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 9931 0 0 0 615 5 0 0 25 0 1 0 180888249 41893888 9909 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 10228 9909 65 8 0 9900 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 40912

[startup+12.7173 s]
/proc/loadavg: 1.92 1.31 1.28 3/74 18903
/proc/meminfo: memFree=1366168/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=66384 CPUtime=12.6
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 16296 0 0 0 1252 8 0 0 25 0 1 0 180888249 67977216 16274 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 16596 16274 65 8 0 16268 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 66384

[startup+25.5285 s]
/proc/loadavg: 1.94 1.35 1.29 3/74 18903
/proc/meminfo: memFree=1315864/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=122580 CPUtime=25.32
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 30356 0 0 0 2518 14 0 0 25 0 1 0 180888249 125521920 30334 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 30645 30334 65 8 0 30317 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 122580

[startup+51.164 s]
/proc/loadavg: 1.96 1.40 1.31 3/74 18903
/proc/meminfo: memFree=1211864/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=220356 CPUtime=50.75
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 54796 0 0 0 5050 25 0 0 25 0 1 0 180888249 225644544 54774 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/18902/statm: 55089 54774 65 8 0 54761 0
Current children cumulated CPU time (s) 50.75
Current children cumulated vsize (KiB) 220356

[startup+102.451 s]
/proc/loadavg: 1.98 1.49 1.34 3/74 19599
/proc/meminfo: memFree=992480/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=430964 CPUtime=101.87
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 107461 0 0 0 10137 50 0 0 25 0 1 0 180888249 441307136 107439 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/18902/statm: 107741 107439 65 8 0 107413 0
Current children cumulated CPU time (s) 101.87
Current children cumulated vsize (KiB) 430964

[startup+162.508 s]
/proc/loadavg: 1.99 1.58 1.38 3/74 19599
/proc/meminfo: memFree=737888/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=679288 CPUtime=161.88
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 169520 0 0 0 16109 79 0 0 25 0 1 0 180888249 695590912 169498 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/18902/statm: 169822 169498 65 8 0 169494 0
Current children cumulated CPU time (s) 161.88
Current children cumulated vsize (KiB) 679288



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+221.818 s]
/proc/loadavg: 1.99 1.65 1.41 3/74 19599
/proc/meminfo: memFree=488992/2055920 swapFree=4184772/4192956
[pid=18902] ppid=18900 vsize=927588 CPUtime=221.11
/proc/18902/stat : 18902 (VALCSP) R 18900 18902 18793 0 -1 4194304 231590 0 0 0 22002 109 0 0 25 0 1 0 180888249 949850112 231568 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/18902/statm: 231897 231568 65 8 0 231569 0
Current children cumulated CPU time (s) 221.11
Current children cumulated vsize (KiB) 927588

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 221.959
CPU time (s): 221.254
CPU user time (s): 220.027
CPU system time (s): 1.22781
CPU usage (%): 99.6827
Max. virtual memory (cumulated for all children) (KiB): 927588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 220.027
system time used= 1.22781
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231590
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= 2107

runsolver used 0.311952 s user time and 0.603908 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Tue Jan  9 06:41:41 UTC 2007


IDJOB= 233167
IDBENCH= 6585
FILE ID= node56/233167-1168324901

PBS_JOBID= 3502952

Free space on /tmp= 66535 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-105-7.xml
COMMAND LINE= /tmp/evaluation/233167-1168324901/VALCSP /tmp/evaluation/233167-1168324901/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-233167-1168324901 -o ROOT/results/node56/solver-233167-1168324901 -C 1800 -M 900  /tmp/evaluation/233167-1168324901/VALCSP /tmp/evaluation/233167-1168324901/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  374810fca23912defb7b4a24b5ed2d7b

RANDOM SEED= 732529806

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		: 3000.232
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		: 3000.232
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:       1431608 kB
Buffers:         48376 kB
Cached:         416804 kB
SwapCached:       2048 kB
Active:         285740 kB
Inactive:       283068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1431608 kB
SwapTotal:     4192956 kB
SwapFree:      4184772 kB
Dirty:            1092 kB
Writeback:           0 kB
Mapped:         111668 kB
Slab:            40716 kB
Committed_AS:  4069904 kB
PageTables:       2028 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= 66535 MiB



End job on node56 on Tue Jan  9 06:45:23 UTC 2007