Trace number 269386

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) 220.426 220.715

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-7.xml
MD5SUMb7da7eeabd87a2ed31538cf45df24a02
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 benchmark0.916859
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1269
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/node29/watcher-269386-1168980583 -o ROOT/results/node29/solver-269386-1168980583 -C 1800 -M 900 /tmp/evaluation/269386-1168980583/VALCSP /tmp/evaluation/269386-1168980583/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: 0.08 0.13 0.40 3/86 3666
/proc/meminfo: memFree=1450744/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=2788 CPUtime=0
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 460 0 0 0 0 0 0 0 18 0 1 0 246453838 2854912 439 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 4564603 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 730 443 63 8 0 402 0

[startup+0.101987 s]
/proc/loadavg: 0.08 0.13 0.40 3/86 3666
/proc/meminfo: memFree=1450744/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=20868 CPUtime=0.09
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 4925 0 0 0 8 1 0 0 18 0 1 0 246453838 21368832 4903 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 5217 4903 65 8 0 4889 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20868

[startup+0.510012 s]
/proc/loadavg: 0.08 0.13 0.40 3/86 3666
/proc/meminfo: memFree=1450744/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=20868 CPUtime=0.49
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 4925 0 0 0 48 1 0 0 22 0 1 0 246453838 21368832 4903 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 5217 4903 65 8 0 4889 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 20868

[startup+1.33106 s]
/proc/loadavg: 0.23 0.16 0.40 3/86 3666
/proc/meminfo: memFree=1431288/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=20868 CPUtime=1.32
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 4925 0 0 0 131 1 0 0 25 0 1 0 246453838 21368832 4903 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 5217 4903 65 8 0 4889 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20868

[startup+2.96816 s]
/proc/loadavg: 0.23 0.16 0.40 3/86 3666
/proc/meminfo: memFree=1420216/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=32016 CPUtime=2.96
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 7706 0 0 0 293 3 0 0 25 0 1 0 246453838 32784384 7684 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 8004 7684 65 8 0 7676 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 32016

[startup+6.25037 s]
/proc/loadavg: 0.37 0.19 0.41 3/86 3666
/proc/meminfo: memFree=1387768/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=43548 CPUtime=6.24
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 10588 0 0 0 620 4 0 0 25 0 1 0 246453838 44593152 10566 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 10887 10566 65 8 0 10559 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 43548

[startup+12.7058 s]
/proc/loadavg: 0.50 0.22 0.42 3/86 3666
/proc/meminfo: memFree=1327288/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=72368 CPUtime=12.69
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 17788 0 0 0 1263 6 0 0 25 0 1 0 246453838 74104832 17766 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 18092 17766 65 8 0 17764 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 72368

[startup+25.5176 s]
/proc/loadavg: 0.73 0.28 0.44 3/86 3666
/proc/meminfo: memFree=1219704/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=123180 CPUtime=25.5
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 30503 0 0 0 2538 12 0 0 25 0 1 0 246453838 126136320 30481 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 30795 30481 65 8 0 30467 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 123180

[startup+51.1422 s]
/proc/loadavg: 1.23 0.44 0.49 3/86 3666
/proc/meminfo: memFree=987640/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=229708 CPUtime=51.12
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 57136 0 0 0 5089 23 0 0 25 0 1 0 246453838 235220992 57114 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 57427 57114 65 8 0 57099 0
Current children cumulated CPU time (s) 51.12
Current children cumulated vsize (KiB) 229708

[startup+102.385 s]
/proc/loadavg: 1.66 0.68 0.56 3/86 3666
/proc/meminfo: memFree=541880/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=437248 CPUtime=102.35
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 109014 0 0 0 10191 44 0 0 25 0 1 0 246453838 447741952 108992 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 109312 108992 65 8 0 108984 0
Current children cumulated CPU time (s) 102.35
Current children cumulated vsize (KiB) 437248

[startup+162.449 s]
/proc/loadavg: 1.92 0.93 0.65 3/86 3666
/proc/meminfo: memFree=16120/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=681136 CPUtime=162.41
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 169997 0 0 0 16173 68 0 0 25 0 1 0 246453838 697483264 169975 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 170284 169975 65 8 0 169956 0
Current children cumulated CPU time (s) 162.41
Current children cumulated vsize (KiB) 681136



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+220.562 s]
/proc/loadavg: 1.63 1.04 0.71 2/78 3757
/proc/meminfo: memFree=813432/2055920 swapFree=4161368/4192956
[pid=3665] ppid=3663 vsize=921916 CPUtime=220.27
/proc/3665/stat : 3665 (VALCSP) R 3663 3665 3426 0 -1 4194304 230191 0 0 0 21934 93 0 0 25 0 1 0 246453838 944041984 230169 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528582 0 0 4096 0 0 0 0 17 1 0 0
/proc/3665/statm: 230479 230169 65 8 0 230151 0
Current children cumulated CPU time (s) 220.27
Current children cumulated vsize (KiB) 921916

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 220.715
CPU time (s): 220.426
CPU user time (s): 219.345
CPU system time (s): 1.08183
CPU usage (%): 99.8695
Max. virtual memory (cumulated for all children) (KiB): 921916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 219.345
system time used= 1.08183
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230191
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= 4767

runsolver used 0.207968 s user time and 0.584911 s system time

The end



Launcher Data (download as text)




Begin job on node29 on Tue Jan 16 20:49:53 UTC 2007


IDJOB= 269386
IDBENCH= 6581
IDSOLVER= 90
FILE ID= node29/269386-1168980583

PBS_JOBID= 3566321

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-7.xml
COMMAND LINE= /tmp/evaluation/269386-1168980583/VALCSP /tmp/evaluation/269386-1168980583/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-269386-1168980583 -o ROOT/results/node29/solver-269386-1168980583 -C 1800 -M 900  /tmp/evaluation/269386-1168980583/VALCSP /tmp/evaluation/269386-1168980583/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  b7da7eeabd87a2ed31538cf45df24a02

RANDOM SEED= 444222189

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		: 3000.241
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		: 3000.241
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:       1472216 kB
Buffers:         51176 kB
Cached:         398276 kB
SwapCached:       2476 kB
Active:         154904 kB
Inactive:       348044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1472216 kB
SwapTotal:     4192956 kB
SwapFree:      4161368 kB
Dirty:            2328 kB
Writeback:           0 kB
Mapped:          69344 kB
Slab:            65496 kB
Committed_AS:  4902796 kB
PageTables:       2388 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 node29 on Tue Jan 16 20:53:38 UTC 2007