Trace number 269506

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) 115.938 116.502

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-1.xml
MD5SUMfde0cdde80ef2d7802d8599978e8800e
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 benchmark0.154976
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size616
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
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/node13/watcher-269506-1168980843 -o ROOT/results/node13/solver-269506-1168980843 -C 1800 -M 900 /tmp/evaluation/269506-1168980843/VALCSP /tmp/evaluation/269506-1168980843/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


[startup+0.108852 s]
/proc/loadavg: 1.81 1.17 1.00 5/86 15533
/proc/meminfo: memFree=1633312/2055920 swapFree=4169400/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.81 1.17 1.00 5/86 15533
/proc/meminfo: memFree=1633312/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=4108 CPUtime=0.1
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 763 0 0 0 10 0 0 0 20 0 1 0 246479310 4206592 741 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 1027 741 64 8 0 699 0

[startup+0.520897 s]
/proc/loadavg: 1.81 1.17 1.00 5/86 15533
/proc/meminfo: memFree=1633312/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=7672 CPUtime=0.5
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 1648 0 0 0 50 0 0 0 24 0 1 0 246479310 7856128 1626 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 1918 1626 64 8 0 1590 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7672

[startup+1.34901 s]
/proc/loadavg: 1.81 1.17 1.00 3/86 15533
/proc/meminfo: memFree=1622240/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=14932 CPUtime=1.33
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 3461 0 0 0 132 1 0 0 25 0 1 0 246479310 15290368 3439 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528600 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 3733 3439 64 8 0 3405 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 14932

[startup+2.98622 s]
/proc/loadavg: 1.82 1.18 1.01 3/86 15533
/proc/meminfo: memFree=1612704/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=28264 CPUtime=2.96
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 6796 0 0 0 293 3 0 0 25 0 1 0 246479310 28942336 6774 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 7066 6774 64 8 0 6738 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 28264

[startup+6.26566 s]
/proc/loadavg: 1.82 1.18 1.01 3/86 15533
/proc/meminfo: memFree=1585248/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=54400 CPUtime=6.22
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 13333 0 0 0 616 6 0 0 25 0 1 0 246479310 55705600 13311 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 13600 13311 64 8 0 13272 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 54400

[startup+12.7335 s]
/proc/loadavg: 1.85 1.21 1.02 3/86 15533
/proc/meminfo: memFree=1532512/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=106672 CPUtime=12.66
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 26411 0 0 0 1253 13 0 0 25 0 1 0 246479310 109232128 26389 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 26668 26389 64 8 0 26340 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 106672

[startup+25.5502 s]
/proc/loadavg: 1.87 1.23 1.03 3/86 15533
/proc/meminfo: memFree=1434272/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=206464 CPUtime=25.41
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 51345 0 0 0 2516 25 0 0 25 0 1 0 246479310 211419136 51323 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529232 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 51616 51323 64 8 0 51288 0
Current children cumulated CPU time (s) 25.41
Current children cumulated vsize (KiB) 206464

[startup+51.1997 s]
/proc/loadavg: 1.91 1.29 1.05 3/86 15533
/proc/meminfo: memFree=1231648/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=407104 CPUtime=50.95
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 101514 0 0 0 5045 50 0 0 25 0 1 0 246479310 416874496 101492 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528610 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 101776 101492 64 8 0 101448 0
Current children cumulated CPU time (s) 50.95
Current children cumulated vsize (KiB) 407104

[startup+102.497 s]
/proc/loadavg: 1.96 1.40 1.10 3/86 15533
/proc/meminfo: memFree=828256/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=814324 CPUtime=101.99
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 203344 0 0 0 10097 102 0 0 25 0 1 0 246479310 833867776 203322 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 203581 203322 64 8 0 203253 0
Current children cumulated CPU time (s) 101.99
Current children cumulated vsize (KiB) 814324



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+116.353 s]
/proc/loadavg: 1.97 1.43 1.11 3/86 15533
/proc/meminfo: memFree=711328/2055920 swapFree=4169400/4192956
[pid=15532] ppid=15530 vsize=922564 CPUtime=115.79
/proc/15532/stat : 15532 (VALCSP) R 15530 15532 15259 0 -1 4194304 230382 0 0 0 11462 117 0 0 25 0 1 0 246479310 944705536 230360 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/15532/statm: 230641 230360 64 8 0 230313 0
Current children cumulated CPU time (s) 115.79
Current children cumulated vsize (KiB) 922564

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 116.502
CPU time (s): 115.938
CPU user time (s): 114.625
CPU system time (s): 1.3138
CPU usage (%): 99.5166
Max. virtual memory (cumulated for all children) (KiB): 922564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 114.625
system time used= 1.3138
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230382
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= 5
involuntary context switches= 3633

runsolver used 0.133979 s user time and 0.39394 s system time

The end



Launcher Data (download as text)




Begin job on node13 on Tue Jan 16 20:54:03 UTC 2007


IDJOB= 269506
IDBENCH= 6761
IDSOLVER= 90
FILE ID= node13/269506-1168980843

PBS_JOBID= 3566031

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-1.xml
COMMAND LINE= /tmp/evaluation/269506-1168980843/VALCSP /tmp/evaluation/269506-1168980843/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-269506-1168980843 -o ROOT/results/node13/solver-269506-1168980843 -C 1800 -M 900  /tmp/evaluation/269506-1168980843/VALCSP /tmp/evaluation/269506-1168980843/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  fde0cdde80ef2d7802d8599978e8800e

RANDOM SEED= 768594763

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		: 3000.247
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		: 3000.247
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:       1635008 kB
Buffers:         42932 kB
Cached:         168920 kB
SwapCached:       3028 kB
Active:         300188 kB
Inactive:        67412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1635008 kB
SwapTotal:     4192956 kB
SwapFree:      4169400 kB
Dirty:             304 kB
Writeback:           0 kB
Mapped:         164264 kB
Slab:            37812 kB
Committed_AS:  7059980 kB
PageTables:       2584 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 node13 on Tue Jan 16 20:56:01 UTC 2007