Trace number 269527

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) 189.093 189.246

General information on the benchmark

Nameos-gp/
gp10-06-1071.xml
MD5SUM396b72f3f9ddc9f04064c40594a04fc5
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 benchmark0.271957
SatisfiableYES
(Un)Satisfiability was proved
Number of variables101
Number of constraints1000
Maximum constraint arity2
Maximum domain size1072
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1000
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/node34/watcher-269527-1168980950 -o ROOT/results/node34/solver-269527-1168980950 -C 1800 -M 900 /tmp/evaluation/269527-1168980950/VALCSP /tmp/evaluation/269527-1168980950/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+0.106594 s]
/proc/loadavg: 1.91 1.37 0.94 5/73 2637
/proc/meminfo: memFree=1564952/2055920 swapFree=4192812/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.91 1.37 0.94 5/73 2637
/proc/meminfo: memFree=1564952/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=8608 CPUtime=0.09
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 1913 0 0 0 9 0 0 0 20 0 1 0 246488707 8814592 1891 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 2152 1891 64 8 0 1824 0

[startup+0.515605 s]
/proc/loadavg: 1.91 1.37 0.94 5/73 2637
/proc/meminfo: memFree=1564952/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=8608 CPUtime=0.5
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 1913 0 0 0 50 0 0 0 23 0 1 0 246488707 8814592 1891 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 2152 1891 64 8 0 1824 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8608

[startup+1.34168 s]
/proc/loadavg: 1.91 1.37 0.94 3/73 2637
/proc/meminfo: memFree=1558616/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=13232 CPUtime=1.32
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 3038 0 0 0 131 1 0 0 25 0 1 0 246488707 13549568 3016 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 3308 3016 64 8 0 2980 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 13232

[startup+2.97881 s]
/proc/loadavg: 1.91 1.37 0.94 3/73 2637
/proc/meminfo: memFree=1549592/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=17728 CPUtime=2.96
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 4164 0 0 0 294 2 0 0 25 0 1 0 246488707 18153472 4142 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528639 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 4432 4142 64 8 0 4104 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 17728

[startup+6.25809 s]
/proc/loadavg: 1.92 1.38 0.94 3/73 2637
/proc/meminfo: memFree=1536088/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=35712 CPUtime=6.22
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 8666 0 0 0 618 4 0 0 25 0 1 0 246488707 36569088 8644 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 8928 8644 64 8 0 8600 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 35712

[startup+12.7216 s]
/proc/loadavg: 1.92 1.39 0.95 3/73 2637
/proc/meminfo: memFree=1504472/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=62692 CPUtime=12.65
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 15420 0 0 0 1258 7 0 0 25 0 1 0 246488707 64196608 15398 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 15673 15398 64 8 0 15345 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 62692

[startup+25.5346 s]
/proc/loadavg: 1.94 1.42 0.97 3/73 2637
/proc/meminfo: memFree=1441304/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=130264 CPUtime=25.41
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 32303 0 0 0 2525 16 0 0 25 0 1 0 246488707 133390336 32281 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529392 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 32566 32281 64 8 0 32238 0
Current children cumulated CPU time (s) 25.41
Current children cumulated vsize (KiB) 130264

[startup+51.1755 s]
/proc/loadavg: 1.96 1.47 0.99 3/73 2637
/proc/meminfo: memFree=1315032/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=251804 CPUtime=51.05
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 62693 0 0 0 5072 33 0 0 25 0 1 0 246488707 257847296 62671 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 62951 62671 64 8 0 62623 0
Current children cumulated CPU time (s) 51.05
Current children cumulated vsize (KiB) 251804

[startup+102.445 s]
/proc/loadavg: 1.98 1.55 1.04 3/73 2637
/proc/meminfo: memFree=1071384/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=499472 CPUtime=102.3
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 124600 0 0 0 10164 66 0 0 25 0 1 0 246488707 511459328 124578 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 124868 124578 64 8 0 124540 0
Current children cumulated CPU time (s) 102.3
Current children cumulated vsize (KiB) 499472

[startup+162.539 s]
/proc/loadavg: 1.99 1.63 1.10 3/73 2637
/proc/meminfo: memFree=773592/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=792076 CPUtime=162.39
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 197763 0 0 0 16136 103 0 0 25 0 1 0 246488707 811085824 197741 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 198019 197741 64 8 0 197691 0
Current children cumulated CPU time (s) 162.39
Current children cumulated vsize (KiB) 792076



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+189.096 s]
/proc/loadavg: 1.99 1.65 1.12 3/73 2637
/proc/meminfo: memFree=642712/2055920 swapFree=4192812/4192956
[pid=2636] ppid=2634 vsize=922692 CPUtime=188.94
/proc/2636/stat : 2636 (VALCSP) R 2634 2636 2293 0 -1 4194304 230404 0 0 0 18774 120 0 0 25 0 1 0 246488707 944836608 230382 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/2636/statm: 230673 230382 64 8 0 230345 0
Current children cumulated CPU time (s) 188.94
Current children cumulated vsize (KiB) 922692

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 189.246
CPU time (s): 189.093
CPU user time (s): 187.747
CPU system time (s): 1.3458
CPU usage (%): 99.9193
Max. virtual memory (cumulated for all children) (KiB): 922692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 187.747
system time used= 1.34579
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230404
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= 657

runsolver used 0.179972 s user time and 0.509922 s system time

The end



Launcher Data (download as text)




Begin job on node34 on Tue Jan 16 20:55:50 UTC 2007


IDJOB= 269527
IDBENCH= 6916
IDSOLVER= 90
FILE ID= node34/269527-1168980950

PBS_JOBID= 3566328

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/os-gp/gp10-06-1071.xml
COMMAND LINE= /tmp/evaluation/269527-1168980950/VALCSP /tmp/evaluation/269527-1168980950/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-269527-1168980950 -o ROOT/results/node34/solver-269527-1168980950 -C 1800 -M 900  /tmp/evaluation/269527-1168980950/VALCSP /tmp/evaluation/269527-1168980950/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  396b72f3f9ddc9f04064c40594a04fc5

RANDOM SEED= 43640076

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		: 3000.227
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		: 3000.227
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:       1566456 kB
Buffers:         30852 kB
Cached:         186680 kB
SwapCached:          0 kB
Active:         214972 kB
Inactive:       195900 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1566456 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             204 kB
Writeback:           0 kB
Mapped:         204300 kB
Slab:            63820 kB
Committed_AS:  4286520 kB
PageTables:       2048 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 node34 on Tue Jan 16 20:58:59 UTC 2007