Trace number 268477

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) 95.6785 95.8162

General information on the benchmark

Namefapp/fapp36-40/fapp36/
fapp36-2000-10.xml
MD5SUMa0cfe24393aaec972ad81f1f87dd77c5
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 benchmark15.3527
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/node75/watcher-268477-1168979215 -o ROOT/results/node75/solver-268477-1168979215 -C 1800 -M 900 /tmp/evaluation/268477-1168979215/VALCSP /tmp/evaluation/268477-1168979215/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: 1.87 1.63 1.19 5/73 25920
/proc/meminfo: memFree=916064/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=1468 CPUtime=0
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 107 0 0 0 0 0 0 0 22 0 1 0 246320959 1503232 85 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7172737 0 0 4096 0 0 0 0 17 1 0 0
/proc/25919/statm: 367 85 63 8 0 39 0

[startup+0.103179 s]
/proc/loadavg: 1.87 1.63 1.19 5/73 25920
/proc/meminfo: memFree=916064/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=62708 CPUtime=0.09
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 15432 0 0 0 3 6 0 0 22 0 1 0 246320959 64212992 15410 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 0 0 0
/proc/25919/statm: 15677 15410 64 8 0 15349 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62708

[startup+0.515218 s]
/proc/loadavg: 1.87 1.63 1.19 5/73 25920
/proc/meminfo: memFree=916064/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=68160 CPUtime=0.5
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 16686 0 0 0 44 6 0 0 25 0 1 0 246320959 69795840 16664 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/25919/statm: 17040 16664 65 8 0 16712 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 68160

[startup+1.34031 s]
/proc/loadavg: 1.87 1.63 1.19 3/73 25920
/proc/meminfo: memFree=834848/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=75288 CPUtime=1.32
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 18464 0 0 0 125 7 0 0 25 0 1 0 246320959 77094912 18442 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/25919/statm: 18822 18442 65 8 0 18494 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 75288

[startup+2.97651 s]
/proc/loadavg: 1.87 1.63 1.19 3/73 25920
/proc/meminfo: memFree=817632/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=91524 CPUtime=2.94
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 22530 0 0 0 286 8 0 0 25 0 1 0 246320959 93720576 22508 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/25919/statm: 22881 22508 65 8 0 22553 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 91524

[startup+6.2539 s]
/proc/loadavg: 1.88 1.63 1.20 3/73 25920
/proc/meminfo: memFree=762080/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=122544 CPUtime=6.2
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 30286 0 0 0 609 11 0 0 25 0 1 0 246320959 125485056 30264 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/25919/statm: 30636 30264 65 8 0 30308 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 122544

[startup+12.7167 s]
/proc/loadavg: 1.81 1.62 1.19 3/73 25959
/proc/meminfo: memFree=1535000/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=180888 CPUtime=12.6
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 44859 0 0 0 1242 18 0 0 25 0 1 0 246320959 185229312 44837 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/25919/statm: 45222 44837 65 8 0 44894 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 180888

[startup+25.5292 s]
/proc/loadavg: 1.85 1.64 1.21 3/73 25959
/proc/meminfo: memFree=1310056/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=292560 CPUtime=25.41
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 72780 0 0 0 2512 29 0 0 25 0 1 0 246320959 299581440 72758 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528691 0 0 4096 0 0 0 0 17 1 0 0
/proc/25919/statm: 73140 72758 65 8 0 72812 0
Current children cumulated CPU time (s) 25.41
Current children cumulated vsize (KiB) 292560

[startup+51.1662 s]
/proc/loadavg: 1.90 1.67 1.23 3/73 25959
/proc/meminfo: memFree=838696/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=522240 CPUtime=51.04
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 130217 0 0 0 5049 55 0 0 25 0 1 0 246320959 534773760 130195 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528704 0 0 4096 0 0 0 0 17 1 0 0
/proc/25919/statm: 130560 130195 65 8 0 130232 0
Current children cumulated CPU time (s) 51.04
Current children cumulated vsize (KiB) 522240



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+95.6745 s]
/proc/loadavg: 1.95 1.71 1.26 3/73 25959
/proc/meminfo: memFree=15272/2055920 swapFree=4184548/4192956
[pid=25919] ppid=25917 vsize=922464 CPUtime=95.53
/proc/25919/stat : 25919 (VALCSP) R 25917 25919 25641 0 -1 4194304 230262 0 0 0 9456 97 0 0 25 0 1 0 246320959 944603136 230240 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528720 0 0 4096 0 0 0 0 17 1 0 0
/proc/25919/statm: 230616 230240 65 8 0 230288 0
Current children cumulated CPU time (s) 95.53
Current children cumulated vsize (KiB) 922464

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 95.8162
CPU time (s): 95.6785
CPU user time (s): 94.5696
CPU system time (s): 1.10883
CPU usage (%): 99.8563
Max. virtual memory (cumulated for all children) (KiB): 922464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 94.5696
system time used= 1.10883
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230262
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= 543

runsolver used 0.096985 s user time and 0.253961 s system time

The end



Launcher Data (download as text)




Begin job on node75 on Tue Jan 16 20:26:56 UTC 2007


IDJOB= 268477
IDBENCH= 4180
IDSOLVER= 90
FILE ID= node75/268477-1168979215

PBS_JOBID= 3566219

Free space on /tmp= 66555 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp36-40/fapp36/fapp36-2000-10.xml
COMMAND LINE= /tmp/evaluation/268477-1168979215/VALCSP /tmp/evaluation/268477-1168979215/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-268477-1168979215 -o ROOT/results/node75/solver-268477-1168979215 -C 1800 -M 900  /tmp/evaluation/268477-1168979215/VALCSP /tmp/evaluation/268477-1168979215/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  a0cfe24393aaec972ad81f1f87dd77c5

RANDOM SEED= 299058194

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:        916608 kB
Buffers:         19400 kB
Cached:         170384 kB
SwapCached:       2452 kB
Active:         897584 kB
Inactive:       176300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        916608 kB
SwapTotal:     4192956 kB
SwapFree:      4184548 kB
Dirty:            2664 kB
Writeback:           0 kB
Mapped:         891404 kB
Slab:            49040 kB
Committed_AS:  5983600 kB
PageTables:       3456 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= 66560 MiB



End job on node75 on Tue Jan 16 20:28:32 UTC 2007