Trace number 233284

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) 255.363 255.522

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-105-1.xml
MD5SUM9d005d728c1360dc7f3c9368b8c3efe0
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 benchmark0.763882
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1399
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/node44/watcher-233284-1168325256 -o ROOT/results/node44/solver-233284-1168325256 -C 1800 -M 900 /tmp/evaluation/233284-1168325256/VALCSP /tmp/evaluation/233284-1168325256/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: 2.43 1.98 1.44 3/74 4555
/proc/meminfo: memFree=1445768/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=140 CPUtime=0
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 38 0 0 0 0 0 0 0 20 0 1 0 180924694 143360 23 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 11280683 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 35 23 18 8 0 2 0

[startup+0.103165 s]
/proc/loadavg: 2.43 1.98 1.44 3/74 4555
/proc/meminfo: memFree=1445768/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=23260 CPUtime=0.09
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 5537 0 0 0 7 2 0 0 20 0 1 0 180924694 23818240 5515 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 5815 5515 65 8 0 5487 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 23260

[startup+0.511193 s]
/proc/loadavg: 2.43 1.98 1.44 3/74 4555
/proc/meminfo: memFree=1445768/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=23260 CPUtime=0.49
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 5537 0 0 0 47 2 0 0 23 0 1 0 180924694 23818240 5515 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 5815 5515 65 8 0 5487 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 23260

[startup+1.33228 s]
/proc/loadavg: 2.43 1.98 1.44 3/74 4555
/proc/meminfo: memFree=1423944/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=23260 CPUtime=1.31
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 5537 0 0 0 129 2 0 0 25 0 1 0 180924694 23818240 5515 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 5815 5515 65 8 0 5487 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 23260

[startup+2.96944 s]
/proc/loadavg: 2.43 1.98 1.44 3/74 4555
/proc/meminfo: memFree=1417096/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=30164 CPUtime=2.95
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 7243 0 0 0 292 3 0 0 25 0 1 0 180924694 30887936 7221 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 7541 7221 65 8 0 7213 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 30164

[startup+6.25278 s]
/proc/loadavg: 2.48 2.00 1.45 3/74 4555
/proc/meminfo: memFree=1402888/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=44292 CPUtime=6.22
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 10779 0 0 0 617 5 0 0 25 0 1 0 180924694 45355008 10757 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 11073 10757 65 8 0 10745 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 44292

[startup+12.7114 s]
/proc/loadavg: 2.40 2.00 1.45 3/74 4555
/proc/meminfo: memFree=1381712/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=65380 CPUtime=12.65
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 16065 0 0 0 1258 7 0 0 25 0 1 0 180924694 66949120 16043 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 16345 16043 65 8 0 16017 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 65380

[startup+25.5248 s]
/proc/loadavg: 2.34 2.00 1.46 3/74 4555
/proc/meminfo: memFree=1332688/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=114316 CPUtime=25.42
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 28295 0 0 0 2530 12 0 0 25 0 1 0 180924694 117059584 28273 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530975 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 28579 28273 65 8 0 28251 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 114316

[startup+51.1513 s]
/proc/loadavg: 2.22 2.00 1.47 3/74 4555
/proc/meminfo: memFree=1241040/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=205892 CPUtime=51.03
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 51167 0 0 0 5082 21 0 0 25 0 1 0 180924694 210833408 51145 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 51473 51145 65 8 0 51145 0
Current children cumulated CPU time (s) 51.03
Current children cumulated vsize (KiB) 205892

[startup+102.403 s]
/proc/loadavg: 2.10 2.00 1.50 3/74 4555
/proc/meminfo: memFree=1060432/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=392948 CPUtime=102.27
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 97929 0 0 0 10188 39 0 0 25 0 1 0 180924694 402378752 97907 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 98237 97907 65 8 0 97909 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 392948

[startup+162.473 s]
/proc/loadavg: 2.03 2.00 1.53 3/74 4555
/proc/meminfo: memFree=847120/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=598940 CPUtime=162.32
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 149438 0 0 0 16172 60 0 0 25 0 1 0 180924694 613314560 149416 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 149735 149416 65 8 0 149407 0
Current children cumulated CPU time (s) 162.32
Current children cumulated vsize (KiB) 598940

[startup+222.536 s]
/proc/loadavg: 2.01 2.00 1.55 3/74 4555
/proc/meminfo: memFree=645392/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=807480 CPUtime=222.37
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 201576 0 0 0 22155 82 0 0 25 0 1 0 180924694 826859520 201554 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 201870 201554 65 8 0 201542 0
Current children cumulated CPU time (s) 222.37
Current children cumulated vsize (KiB) 807480



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+255.334 s]
/proc/loadavg: 2.00 2.00 1.57 3/74 4555
/proc/meminfo: memFree=521296/2055920 swapFree=4191892/4192956
[pid=4554] ppid=4552 vsize=924148 CPUtime=255.21
/proc/4554/stat : 4554 (VALCSP) R 4552 4554 4356 0 -1 4194304 230738 0 0 0 25427 94 0 0 25 0 1 0 180924694 946327552 230716 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/4554/statm: 231037 230716 65 8 0 230709 0
Current children cumulated CPU time (s) 255.21
Current children cumulated vsize (KiB) 924148

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 255.522
CPU time (s): 255.363
CPU user time (s): 254.275
CPU system time (s): 1.08783
CPU usage (%): 99.9377
Max. virtual memory (cumulated for all children) (KiB): 924148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 254.275
system time used= 1.08783
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230738
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= 512

runsolver used 0.244962 s user time and 0.671897 s system time

The end



Launcher Data (download as text)




Begin job on node44 on Tue Jan  9 06:47:36 UTC 2007


IDJOB= 233284
IDBENCH= 6591
FILE ID= node44/233284-1168325256

PBS_JOBID= 3502978

Free space on /tmp= 66543 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-105-1.xml
COMMAND LINE= /tmp/evaluation/233284-1168325256/VALCSP /tmp/evaluation/233284-1168325256/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-233284-1168325256 -o ROOT/results/node44/solver-233284-1168325256 -C 1800 -M 900  /tmp/evaluation/233284-1168325256/VALCSP /tmp/evaluation/233284-1168325256/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  9d005d728c1360dc7f3c9368b8c3efe0

RANDOM SEED= 36617226

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		: 3000.213
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		: 3000.213
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:       1446248 kB
Buffers:         60144 kB
Cached:         450640 kB
SwapCached:        304 kB
Active:         247548 kB
Inactive:       303464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1446248 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            1156 kB
Writeback:           0 kB
Mapped:          50364 kB
Slab:            44064 kB
Committed_AS:  4019640 kB
PageTables:       1776 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= 66543 MiB



End job on node44 on Tue Jan  9 06:51:52 UTC 2007