Trace number 269397

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) 217.583 217.664

General information on the benchmark

Nametaillard/
os-taillard-20/os-taillard-20-95-2.xml
MD5SUM92555cdf22aba40b17a03815dd090f8b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1229
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/node18/watcher-269397-1168980596 -o ROOT/results/node18/solver-269397-1168980596 -C 1800 -M 900 /tmp/evaluation/269397-1168980596/VALCSP /tmp/evaluation/269397-1168980596/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: 0.16 0.34 0.91 4/81 20030
/proc/meminfo: memFree=1238088/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=2920 CPUtime=0
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 470 0 0 0 0 0 0 0 18 0 1 0 246455029 2990080 448 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 8296059 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 730 452 63 8 0 402 0

[startup+0.102675 s]
/proc/loadavg: 0.16 0.34 0.91 4/81 20030
/proc/meminfo: memFree=1238088/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=20292 CPUtime=0.09
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 4775 0 0 0 7 2 0 0 18 0 1 0 246455029 20779008 4753 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 5073 4753 65 8 0 4745 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20292

[startup+0.510713 s]
/proc/loadavg: 0.16 0.34 0.91 4/81 20030
/proc/meminfo: memFree=1238088/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=20292 CPUtime=0.5
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 4775 0 0 0 48 2 0 0 22 0 1 0 246455029 20779008 4753 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 5073 4753 65 8 0 4745 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 20292

[startup+1.33179 s]
/proc/loadavg: 0.16 0.34 0.91 2/81 20030
/proc/meminfo: memFree=1219208/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=20292 CPUtime=1.32
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 4775 0 0 0 130 2 0 0 25 0 1 0 246455029 20779008 4753 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 5073 4753 65 8 0 4745 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20292

[startup+2.97295 s]
/proc/loadavg: 0.16 0.34 0.91 2/81 20030
/proc/meminfo: memFree=1213704/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=31148 CPUtime=2.96
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 7505 0 0 0 293 3 0 0 25 0 1 0 246455029 31895552 7483 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 7787 7483 65 8 0 7459 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 31148

[startup+6.24927 s]
/proc/loadavg: 0.23 0.35 0.91 2/81 20031
/proc/meminfo: memFree=1197128/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=42280 CPUtime=6.23
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 10275 0 0 0 619 4 0 0 25 0 1 0 246455029 43294720 10253 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 10570 10253 65 8 0 10242 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 42280

[startup+12.7059 s]
/proc/loadavg: 0.29 0.36 0.91 2/81 20032
/proc/meminfo: memFree=1168712/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=70652 CPUtime=12.69
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 17354 0 0 0 1262 7 0 0 25 0 1 0 246455029 72347648 17332 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 17663 17332 65 8 0 17335 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 70652

[startup+25.5171 s]
/proc/loadavg: 0.76 0.46 0.93 3/86 20094
/proc/meminfo: memFree=1109720/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=121124 CPUtime=25.48
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 29984 0 0 0 2535 13 0 0 25 0 1 0 246455029 124030976 29962 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 30281 29962 65 8 0 29953 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 121124

[startup+51.1576 s]
/proc/loadavg: 1.18 0.58 0.96 3/86 20094
/proc/meminfo: memFree=857688/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=228416 CPUtime=51.11
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 56822 0 0 0 5085 26 0 0 25 0 1 0 246455029 233897984 56800 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 57104 56800 65 8 0 56776 0
Current children cumulated CPU time (s) 51.11
Current children cumulated vsize (KiB) 228416

[startup+102.437 s]
/proc/loadavg: 1.64 0.80 1.01 3/86 20094
/proc/meminfo: memFree=642776/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=448288 CPUtime=102.37
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 111787 0 0 0 10180 57 0 0 25 0 1 0 246455029 459046912 111765 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 112072 111765 65 8 0 111744 0
Current children cumulated CPU time (s) 102.37
Current children cumulated vsize (KiB) 448288

[startup+162.542 s]
/proc/loadavg: 1.92 1.03 1.07 3/86 20094
/proc/meminfo: memFree=389400/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=695672 CPUtime=162.47
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 173620 0 0 0 16156 91 0 0 25 0 1 0 246455029 712368128 173598 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 173918 173598 65 8 0 173590 0
Current children cumulated CPU time (s) 162.47
Current children cumulated vsize (KiB) 695672



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+217.515 s]
/proc/loadavg: 2.03 1.20 1.13 3/86 20094
/proc/meminfo: memFree=159192/2055920 swapFree=4192812/4192956
[pid=20029] ppid=20027 vsize=925784 CPUtime=217.43
/proc/20029/stat : 20029 (VALCSP) R 20027 20029 19889 0 -1 4194304 231136 0 0 0 21621 122 0 0 25 0 1 0 246455029 948002816 231114 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20029/statm: 231446 231114 65 8 0 231118 0
Current children cumulated CPU time (s) 217.43
Current children cumulated vsize (KiB) 925784

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 217.664
CPU time (s): 217.583
CPU user time (s): 216.21
CPU system time (s): 1.37279
CPU usage (%): 99.9628
Max. virtual memory (cumulated for all children) (KiB): 925784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 216.21
system time used= 1.37279
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231136
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= 4607

runsolver used 0.214967 s user time and 0.567913 s system time

The end



Launcher Data (download as text)




Begin job on node18 on Tue Jan 16 20:49:58 UTC 2007


IDJOB= 269397
IDBENCH= 6592
IDSOLVER= 90
FILE ID= node18/269397-1168980596

PBS_JOBID= 3566034

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-95-2.xml
COMMAND LINE= /tmp/evaluation/269397-1168980596/VALCSP /tmp/evaluation/269397-1168980596/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-269397-1168980596 -o ROOT/results/node18/solver-269397-1168980596 -C 1800 -M 900  /tmp/evaluation/269397-1168980596/VALCSP /tmp/evaluation/269397-1168980596/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  92555cdf22aba40b17a03815dd090f8b

RANDOM SEED= 131918305

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		: 3000.231
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		: 3000.231
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:       1238504 kB
Buffers:         54752 kB
Cached:         621644 kB
SwapCached:          0 kB
Active:         227164 kB
Inactive:       509520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1238504 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1212 kB
Writeback:           0 kB
Mapped:          79248 kB
Slab:            65968 kB
Committed_AS:  7074436 kB
PageTables:       1920 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 node18 on Tue Jan 16 20:53:42 UTC 2007