Trace number 235345

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 3.0? (MO) 117.009 117.466

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/node41/watcher-235345-1168337363 -o ROOT/results/node41/solver-235345-1168337363 -C 1800 -M 900 /tmp/evaluation/235345-1168337363/VALCSP /tmp/evaluation/235345-1168337363/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: 2.10 2.14 2.00 5/74 19852
/proc/meminfo: memFree=1481728/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=4108 CPUtime=0.09
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 763 0 0 0 9 0 0 0 21 0 1 0 182135569 4206592 741 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 1027 741 64 8 0 699 0

[startup+0.210182 s]
/proc/loadavg: 2.10 2.14 2.00 5/74 19852
/proc/meminfo: memFree=1481728/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=5296 CPUtime=0.19
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 1068 0 0 0 19 0 0 0 21 0 1 0 182135569 5423104 1046 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 1324 1046 64 8 0 996 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5296

[startup+0.618215 s]
/proc/loadavg: 2.10 2.14 2.00 5/74 19852
/proc/meminfo: memFree=1481728/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=8860 CPUtime=0.6
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 1953 0 0 0 60 0 0 0 25 0 1 0 182135569 9072640 1931 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 2215 1931 64 8 0 1887 0
Current children cumulated CPU time (s) 0.6
Current children cumulated vsize (KiB) 8860

[startup+1.43929 s]
/proc/loadavg: 2.10 2.14 2.00 3/74 19852
/proc/meminfo: memFree=1469376/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=14932 CPUtime=1.42
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 3462 0 0 0 141 1 0 0 25 0 1 0 182135569 15290368 3440 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531029 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 3733 3440 64 8 0 3405 0
Current children cumulated CPU time (s) 1.42
Current children cumulated vsize (KiB) 14932

[startup+3.07643 s]
/proc/loadavg: 2.10 2.14 2.00 3/74 19852
/proc/meminfo: memFree=1459840/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=28264 CPUtime=3.06
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 6797 0 0 0 303 3 0 0 25 0 1 0 182135569 28942336 6775 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530941 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 7066 6775 64 8 0 6738 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 28264

[startup+6.35571 s]
/proc/loadavg: 2.09 2.14 2.00 3/74 19852
/proc/meminfo: memFree=1432384/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=54400 CPUtime=6.32
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 13334 0 0 0 627 5 0 0 25 0 1 0 182135569 55705600 13312 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530975 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 13600 13312 64 8 0 13272 0
Current children cumulated CPU time (s) 6.32
Current children cumulated vsize (KiB) 54400

[startup+12.8193 s]
/proc/loadavg: 2.08 2.14 2.00 3/74 19852
/proc/meminfo: memFree=1379720/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=105616 CPUtime=12.76
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 26148 0 0 0 1266 10 0 0 25 0 1 0 182135569 108150784 26126 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 2397819 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 26404 26126 64 8 0 26076 0
Current children cumulated CPU time (s) 12.76
Current children cumulated vsize (KiB) 105616

[startup+25.6414 s]
/proc/loadavg: 2.06 2.13 2.00 3/74 19852
/proc/meminfo: memFree=1282824/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=205012 CPUtime=25.54
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 51010 0 0 0 2534 20 0 0 25 0 1 0 182135569 209932288 50988 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 51253 50988 64 8 0 50925 0
Current children cumulated CPU time (s) 25.54
Current children cumulated vsize (KiB) 205012

[startup+51.2806 s]
/proc/loadavg: 2.04 2.12 2.00 3/74 19852
/proc/meminfo: memFree=1081672/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=403408 CPUtime=51.08
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 100594 0 0 0 5070 38 0 0 25 0 1 0 182135569 413089792 100572 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 100852 100572 64 8 0 100524 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 403408

[startup+102.554 s]
/proc/loadavg: 2.02 2.10 2.00 3/74 19852
/proc/meminfo: memFree=681928/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=805876 CPUtime=102.15
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 201217 0 0 0 10136 79 0 0 25 0 1 0 182135569 825217024 201195 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530257 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 201469 201195 64 8 0 201141 0
Current children cumulated CPU time (s) 102.15
Current children cumulated vsize (KiB) 805876



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+117.315 s]
/proc/loadavg: 2.01 2.09 2.00 3/74 19852
/proc/meminfo: memFree=558792/2055920 swapFree=4191892/4192956
[pid=19851] ppid=19849 vsize=922564 CPUtime=116.86
/proc/19851/stat : 19851 (VALCSP) R 19849 19851 19089 0 -1 4194304 230383 0 0 0 11596 90 0 0 25 0 1 0 182135569 944705536 230361 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/19851/statm: 230641 230361 64 8 0 230313 0
Current children cumulated CPU time (s) 116.86
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): 117.466
CPU time (s): 117.009
CPU user time (s): 115.966
CPU system time (s): 1.04284
CPU usage (%): 99.6114
Max. virtual memory (cumulated for all children) (KiB): 922564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 115.966
system time used= 1.04284
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= 6
involuntary context switches= 1279

runsolver used 0.083987 s user time and 0.347947 s system time

The end



Launcher Data (download as text)




Begin job on node41 on Tue Jan  9 10:09:23 UTC 2007


IDJOB= 235345
IDBENCH= 6761
FILE ID= node41/235345-1168337363

PBS_JOBID= 3503372

Free space on /tmp= 66561 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-1.xml
COMMAND LINE= /tmp/evaluation/235345-1168337363/VALCSP /tmp/evaluation/235345-1168337363/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-235345-1168337363 -o ROOT/results/node41/solver-235345-1168337363 -C 1800 -M 900  /tmp/evaluation/235345-1168337363/VALCSP /tmp/evaluation/235345-1168337363/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  fde0cdde80ef2d7802d8599978e8800e

RANDOM SEED= 101118663

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		: 3000.234
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		: 3000.234
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:       1482208 kB
Buffers:         70736 kB
Cached:         419012 kB
SwapCached:        396 kB
Active:         202964 kB
Inactive:       311252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1482208 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:             184 kB
Writeback:           0 kB
Mapped:          34592 kB
Slab:            44924 kB
Committed_AS:  3939780 kB
PageTables:       1840 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= 66561 MiB



End job on node41 on Tue Jan  9 10:11:21 UTC 2007