Trace number 269400

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) 181.528 181.664

General information on the benchmark

Nametaillard/os-taillard-15/
os-taillard-15-105-5.xml
MD5SUM806de2aa80fa49e02b821d097063d54f
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 benchmark0.288955
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size1007
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3150
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-269400-1168980602 -o ROOT/results/node44/solver-269400-1168980602 -C 1800 -M 900 /tmp/evaluation/269400-1168980602/VALCSP /tmp/evaluation/269400-1168980602/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: 0.07 0.38 0.89 5/70 27357
/proc/meminfo: memFree=1755600/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=3184 CPUtime=0
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 538 0 0 0 0 0 0 0 18 0 1 0 246459765 3260416 516 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 11716219 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 796 522 64 8 0 468 0

[startup+0.102655 s]
/proc/loadavg: 0.07 0.38 0.89 5/70 27357
/proc/meminfo: memFree=1755600/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=11012 CPUtime=0.09
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 2501 0 0 0 9 0 0 0 18 0 1 0 246459765 11276288 2479 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 2753 2479 64 8 0 2425 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11012

[startup+0.510691 s]
/proc/loadavg: 0.07 0.38 0.89 5/70 27357
/proc/meminfo: memFree=1755600/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=11012 CPUtime=0.49
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 2501 0 0 0 49 0 0 0 22 0 1 0 246459765 11276288 2479 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 2753 2479 64 8 0 2425 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 11012

[startup+1.33178 s]
/proc/loadavg: 0.07 0.38 0.89 3/73 27360
/proc/meminfo: memFree=1729264/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=14840 CPUtime=1.32
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 3450 0 0 0 131 1 0 0 25 0 1 0 246459765 15196160 3428 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 3710 3428 64 8 0 3382 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 14840

[startup+2.96894 s]
/proc/loadavg: 0.23 0.40 0.89 3/73 27360
/proc/meminfo: memFree=1718704/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=22232 CPUtime=2.96
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 5280 0 0 0 294 2 0 0 25 0 1 0 246459765 22765568 5258 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 5558 5258 64 8 0 5230 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 22232

[startup+6.25329 s]
/proc/loadavg: 0.23 0.40 0.89 3/73 27360
/proc/meminfo: memFree=1683056/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=40712 CPUtime=6.24
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 9895 0 0 0 620 4 0 0 25 0 1 0 246459765 41689088 9873 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 10178 9873 64 8 0 9850 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 40712

[startup+12.7109 s]
/proc/loadavg: 0.50 0.46 0.91 3/73 27360
/proc/meminfo: memFree=1613360/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=70676 CPUtime=12.69
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 17416 0 0 0 1263 6 0 0 25 0 1 0 246459765 72372224 17394 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 17669 17394 64 8 0 17341 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 70676

[startup+25.5203 s]
/proc/loadavg: 0.73 0.51 0.92 3/73 27360
/proc/meminfo: memFree=1489200/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=133640 CPUtime=25.5
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 33146 0 0 0 2537 13 0 0 25 0 1 0 246459765 136847360 33124 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 33410 33124 64 8 0 33082 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 133640

[startup+51.1449 s]
/proc/loadavg: 1.16 0.62 0.94 3/73 27360
/proc/meminfo: memFree=1223152/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=263396 CPUtime=51.11
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 65573 0 0 0 5085 26 0 0 25 0 1 0 246459765 269717504 65551 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 65849 65551 64 8 0 65521 0
Current children cumulated CPU time (s) 51.11
Current children cumulated vsize (KiB) 263396

[startup+102.391 s]
/proc/loadavg: 1.63 0.83 1.00 3/73 27360
/proc/meminfo: memFree=703152/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=512876 CPUtime=102.35
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 127958 0 0 0 10183 52 0 0 25 0 1 0 246459765 525185024 127936 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 128219 127936 64 8 0 127891 0
Current children cumulated CPU time (s) 102.35
Current children cumulated vsize (KiB) 512876

[startup+162.451 s]
/proc/loadavg: 1.87 1.06 1.06 3/73 27360
/proc/meminfo: memFree=48176/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=818588 CPUtime=162.39
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 204389 0 0 0 16157 82 0 0 25 0 1 0 246459765 838234112 204367 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27356/statm: 204647 204367 64 8 0 204319 0
Current children cumulated CPU time (s) 162.39
Current children cumulated vsize (KiB) 818588



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+181.519 s]
/proc/loadavg: 1.97 1.12 1.08 3/73 27399
/proc/meminfo: memFree=814496/2055920 swapFree=4191892/4192956
[pid=27356] ppid=27354 vsize=922604 CPUtime=181.38
/proc/27356/stat : 27356 (VALCSP) R 27354 27356 27272 0 -1 4194304 230383 0 0 0 18045 93 0 0 25 0 1 0 246459765 944746496 230361 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/27356/statm: 230651 230361 64 8 0 230323 0
Current children cumulated CPU time (s) 181.38
Current children cumulated vsize (KiB) 922604

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 181.664
CPU time (s): 181.528
CPU user time (s): 180.46
CPU system time (s): 1.06884
CPU usage (%): 99.9252
Max. virtual memory (cumulated for all children) (KiB): 922604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 180.46
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= 230383
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= 7
involuntary context switches= 646

runsolver used 0.157975 s user time and 0.498924 s system time

The end



Launcher Data (download as text)




Begin job on node44 on Tue Jan 16 20:50:04 UTC 2007


IDJOB= 269400
IDBENCH= 6600
IDSOLVER= 90
FILE ID= node44/269400-1168980602

PBS_JOBID= 3566380

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-105-5.xml
COMMAND LINE= /tmp/evaluation/269400-1168980602/VALCSP /tmp/evaluation/269400-1168980602/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-269400-1168980602 -o ROOT/results/node44/solver-269400-1168980602 -C 1800 -M 900  /tmp/evaluation/269400-1168980602/VALCSP /tmp/evaluation/269400-1168980602/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  806de2aa80fa49e02b821d097063d54f

RANDOM SEED= 344658376

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:       1756544 kB
Buffers:         26312 kB
Cached:         181024 kB
SwapCached:        268 kB
Active:          40192 kB
Inactive:       186628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1756544 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:             984 kB
Writeback:           0 kB
Mapped:          28412 kB
Slab:            58360 kB
Committed_AS:  4613316 kB
PageTables:       1596 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= 66564 MiB



End job on node44 on Tue Jan 16 20:53:09 UTC 2007