Trace number 269416

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) 173.723 173.771

General information on the benchmark

Nametaillard/os-taillard-15/
os-taillard-15-105-1.xml
MD5SUMa2fec2135601327cf8139475a92a1e5b
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 benchmark0.296954
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size1005
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/node4/watcher-269416-1168980618 -o ROOT/results/node4/solver-269416-1168980618 -C 1800 -M 900 /tmp/evaluation/269416-1168980618/VALCSP /tmp/evaluation/269416-1168980618/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: 1.32 1.07 1.13 3/86 27934
/proc/meminfo: memFree=1502824/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=3184 CPUtime=0
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 554 0 0 0 0 0 0 0 18 0 1 0 246458059 3260416 532 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 796 538 64 8 0 468 0

[startup+0.102467 s]
/proc/loadavg: 1.32 1.07 1.13 3/86 27934
/proc/meminfo: memFree=1502824/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=10864 CPUtime=0.09
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 2445 0 0 0 8 1 0 0 18 0 1 0 246458059 11124736 2423 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 2716 2423 64 8 0 2388 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10864

[startup+0.510504 s]
/proc/loadavg: 1.32 1.07 1.13 3/86 27934
/proc/meminfo: memFree=1502824/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=10864 CPUtime=0.5
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 2445 0 0 0 49 1 0 0 22 0 1 0 246458059 11124736 2423 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 2716 2423 64 8 0 2388 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10864

[startup+1.33158 s]
/proc/loadavg: 1.32 1.07 1.13 3/86 27934
/proc/meminfo: memFree=1489768/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=14428 CPUtime=1.32
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 3349 0 0 0 131 1 0 0 25 0 1 0 246458059 14774272 3327 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 3607 3327 64 8 0 3279 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 14428

[startup+2.96874 s]
/proc/loadavg: 1.37 1.09 1.14 3/86 27934
/proc/meminfo: memFree=1482536/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=25516 CPUtime=2.96
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 6097 0 0 0 294 2 0 0 25 0 1 0 246458059 26128384 6075 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 6379 6075 64 8 0 6051 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 25516

[startup+6.25205 s]
/proc/loadavg: 1.37 1.09 1.14 3/86 27934
/proc/meminfo: memFree=1464552/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=43336 CPUtime=6.24
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 10560 0 0 0 620 4 0 0 25 0 1 0 246458059 44376064 10538 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 10834 10538 64 8 0 10506 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 43336

[startup+12.7117 s]
/proc/loadavg: 1.47 1.12 1.15 3/86 27934
/proc/meminfo: memFree=1432104/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=75544 CPUtime=12.69
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 18603 0 0 0 1262 7 0 0 25 0 1 0 246458059 77357056 18581 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 18886 18581 64 8 0 18558 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 75544

[startup+25.5189 s]
/proc/loadavg: 1.55 1.15 1.15 3/86 27934
/proc/meminfo: memFree=1368168/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=142732 CPUtime=25.5
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 35423 0 0 0 2536 14 0 0 25 0 1 0 246458059 146157568 35401 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 35683 35401 64 8 0 35355 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 142732

[startup+51.1423 s]
/proc/loadavg: 1.70 1.21 1.18 3/86 27934
/proc/meminfo: memFree=1232616/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=274468 CPUtime=51.12
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 68333 0 0 0 5085 27 0 0 25 0 1 0 246458059 281055232 68311 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 68617 68311 64 8 0 68289 0
Current children cumulated CPU time (s) 51.12
Current children cumulated vsize (KiB) 274468

[startup+102.388 s]
/proc/loadavg: 1.87 1.33 1.22 3/86 27934
/proc/meminfo: memFree=957608/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=549160 CPUtime=102.35
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 137024 0 0 0 10181 54 0 0 25 0 1 0 246458059 562339840 137002 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 137290 137002 64 8 0 136962 0
Current children cumulated CPU time (s) 102.35
Current children cumulated vsize (KiB) 549160

[startup+162.451 s]
/proc/loadavg: 1.95 1.46 1.27 3/86 27934
/proc/meminfo: memFree=639912/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=862396 CPUtime=162.4
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 215348 0 0 0 16153 87 0 0 25 0 1 0 246458059 883093504 215326 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 215599 215326 64 8 0 215271 0
Current children cumulated CPU time (s) 162.4
Current children cumulated vsize (KiB) 862396



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+173.619 s]
/proc/loadavg: 1.96 1.48 1.27 3/86 27934
/proc/meminfo: memFree=578856/2055920 swapFree=4182144/4192956
[pid=27933] ppid=27931 vsize=923380 CPUtime=173.57
/proc/27933/stat : 27933 (VALCSP) R 27931 27933 27734 0 -1 4194304 230567 0 0 0 17264 93 0 0 25 0 1 0 246458059 945541120 230545 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/27933/statm: 230845 230545 64 8 0 230517 0
Current children cumulated CPU time (s) 173.57
Current children cumulated vsize (KiB) 923380

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 173.771
CPU time (s): 173.723
CPU user time (s): 172.649
CPU system time (s): 1.07384
CPU usage (%): 99.9719
Max. virtual memory (cumulated for all children) (KiB): 923380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 172.649
system time used= 1.07384
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230567
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= 3911

runsolver used 0.201969 s user time and 0.427934 s system time

The end



Launcher Data (download as text)




Begin job on node4 on Tue Jan 16 20:50:23 UTC 2007


IDJOB= 269416
IDBENCH= 6625
IDSOLVER= 90
FILE ID= node4/269416-1168980618

PBS_JOBID= 3566021

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-105-1.xml
COMMAND LINE= /tmp/evaluation/269416-1168980618/VALCSP /tmp/evaluation/269416-1168980618/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-269416-1168980618 -o ROOT/results/node4/solver-269416-1168980618 -C 1800 -M 900  /tmp/evaluation/269416-1168980618/VALCSP /tmp/evaluation/269416-1168980618/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  a2fec2135601327cf8139475a92a1e5b

RANDOM SEED= 77836480

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		: 3000.223
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		: 3000.223
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:       1503304 kB
Buffers:         54028 kB
Cached:         385888 kB
SwapCached:       2220 kB
Active:         223744 kB
Inactive:       262020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503304 kB
SwapTotal:     4192956 kB
SwapFree:      4182144 kB
Dirty:             580 kB
Writeback:           0 kB
Mapped:          56416 kB
Slab:            51596 kB
Committed_AS:  7002112 kB
PageTables:       2356 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 node4 on Tue Jan 16 20:53:19 UTC 2007