Trace number 268479

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) 91.5321 91.9894

General information on the benchmark

Namefapp/fapp36-40/fapp36/
fapp36-2000-8.xml
MD5SUM7f44d72a5fa7a0f4922e4f4ea44d0317
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 benchmark15.0357
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables2000
Number of constraints18600
Maximum constraint arity2
Maximum domain size454
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18600
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/node25/watcher-268479-1168979217 -o ROOT/results/node25/solver-268479-1168979217 -C 1800 -M 900 /tmp/evaluation/268479-1168979217/VALCSP /tmp/evaluation/268479-1168979217/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: 1.83 1.69 1.22 5/86 7624
/proc/meminfo: memFree=916640/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=48320 CPUtime=0.05
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 11799 0 0 0 1 4 0 0 20 0 1 0 246314205 49479680 11778 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 4200059 0 0 4096 0 0 0 0 17 1 0 0
/proc/7623/statm: 12080 11785 64 8 0 11752 0

[startup+0.1717 s]
/proc/loadavg: 1.83 1.69 1.22 5/86 7624
/proc/meminfo: memFree=916640/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=64992 CPUtime=0.15
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 15875 0 0 0 9 6 0 0 20 0 1 0 246314205 66551808 15853 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/7623/statm: 16248 15853 65 8 0 15920 0
Current children cumulated CPU time (s) 0.15
Current children cumulated vsize (KiB) 64992

[startup+0.579766 s]
/proc/loadavg: 1.83 1.69 1.22 5/86 7624
/proc/meminfo: memFree=916640/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=68952 CPUtime=0.56
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 16889 0 0 0 49 7 0 0 24 0 1 0 246314205 70606848 16867 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 4200059 0 0 4096 0 0 0 0 17 1 0 0
/proc/7623/statm: 17238 16867 65 8 0 16910 0
Current children cumulated CPU time (s) 0.56
Current children cumulated vsize (KiB) 68952

[startup+1.40091 s]
/proc/loadavg: 1.84 1.69 1.22 3/86 7624
/proc/meminfo: memFree=837216/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=75288 CPUtime=1.37
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 18464 0 0 0 130 7 0 0 25 0 1 0 246314205 77094912 18442 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/7623/statm: 18822 18442 65 8 0 18494 0
Current children cumulated CPU time (s) 1.37
Current children cumulated vsize (KiB) 75288

[startup+3.04318 s]
/proc/loadavg: 1.84 1.69 1.22 3/86 7624
/proc/meminfo: memFree=819936/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=89940 CPUtime=3.01
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 22124 0 0 0 292 9 0 0 25 0 1 0 246314205 92098560 22102 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528600 0 0 4096 0 0 0 0 17 1 0 0
/proc/7623/statm: 22485 22102 65 8 0 22157 0
Current children cumulated CPU time (s) 3.01
Current children cumulated vsize (KiB) 89940

[startup+6.32174 s]
/proc/loadavg: 1.84 1.69 1.22 2/81 7633
/proc/meminfo: memFree=1684360/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=120168 CPUtime=6.27
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 29678 0 0 0 614 13 0 0 25 0 1 0 246314205 123052032 29656 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528624 0 0 4096 0 0 0 0 17 1 0 0
/proc/7623/statm: 30042 29656 65 8 0 29714 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 120168

[startup+12.7858 s]
/proc/loadavg: 1.79 1.69 1.23 3/86 7663
/proc/meminfo: memFree=1535264/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=180096 CPUtime=12.69
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 44656 0 0 0 1248 21 0 0 25 0 1 0 246314205 184418304 44634 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/7623/statm: 45024 44634 65 8 0 44696 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 180096

[startup+25.603 s]
/proc/loadavg: 1.82 1.70 1.24 3/86 7663
/proc/meminfo: memFree=1311144/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=298236 CPUtime=25.46
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 74200 0 0 0 2514 32 0 0 25 0 1 0 246314205 305393664 74178 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528591 0 0 4096 0 0 0 0 17 0 0 0
/proc/7623/statm: 74559 74178 65 8 0 74231 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 298236

[startup+51.2394 s]
/proc/loadavg: 1.89 1.72 1.26 3/86 7663
/proc/meminfo: memFree=835560/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=539268 CPUtime=50.97
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 134474 0 0 0 5042 55 0 0 25 0 1 0 246314205 552210432 134452 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/7623/statm: 134817 134452 65 8 0 134489 0
Current children cumulated CPU time (s) 50.97
Current children cumulated vsize (KiB) 539268



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+91.8513 s]
/proc/loadavg: 1.94 1.76 1.29 3/86 7663
/proc/meminfo: memFree=79272/2055920 swapFree=4170268/4192956
[pid=7623] ppid=7621 vsize=921672 CPUtime=91.39
/proc/7623/stat : 7623 (VALCSP) R 7621 7623 7497 0 -1 4194304 230059 0 0 0 9046 93 0 0 25 0 1 0 246314205 943792128 230037 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/7623/statm: 230418 230037 65 8 0 230090 0
Current children cumulated CPU time (s) 91.39
Current children cumulated vsize (KiB) 921672

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 91.9894
CPU time (s): 91.5321
CPU user time (s): 90.4633
CPU system time (s): 1.06884
CPU usage (%): 99.5029
Max. virtual memory (cumulated for all children) (KiB): 921672

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 90.4632
system time used= 1.06884
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230059
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= 1717

runsolver used 0.080987 s user time and 0.25696 s system time

The end



Launcher Data (download as text)




Begin job on node25 on Tue Jan 16 20:26:58 UTC 2007


IDJOB= 268479
IDBENCH= 4182
IDSOLVER= 90
FILE ID= node25/268479-1168979217

PBS_JOBID= 3566225

Free space on /tmp= 66555 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp36-40/fapp36/fapp36-2000-8.xml
COMMAND LINE= /tmp/evaluation/268479-1168979217/VALCSP /tmp/evaluation/268479-1168979217/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-268479-1168979217 -o ROOT/results/node25/solver-268479-1168979217 -C 1800 -M 900  /tmp/evaluation/268479-1168979217/VALCSP /tmp/evaluation/268479-1168979217/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  7f44d72a5fa7a0f4922e4f4ea44d0317

RANDOM SEED= 345315472

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		: 3000.279
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		: 3000.279
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:        917056 kB
Buffers:          8492 kB
Cached:         149952 kB
SwapCached:       2920 kB
Active:         929396 kB
Inactive:       137136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        917056 kB
SwapTotal:     4192956 kB
SwapFree:      4170268 kB
Dirty:            2784 kB
Writeback:           0 kB
Mapped:         918188 kB
Slab:            55472 kB
Committed_AS:  5549272 kB
PageTables:       3984 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= 66559 MiB



End job on node25 on Tue Jan 16 20:28:30 UTC 2007