Trace number 192094

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) 67.2318 67.2561

General information on the benchmark

Namequeens/
queens-180.xml
MD5SUMc796a276961c748e1ef388ea91350f5c
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 benchmark4.35734
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables180
Number of constraints16110
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension0
Number of constraints which are defined in intension16110
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/node43/watcher-192094-1168096610 -o ROOT/results/node43/solver-192094-1168096610 -C 1800 -M 900 /tmp/evaluation/192094-1168096610/VALCSP /tmp/evaluation/192094-1168096610/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: 0.50 0.65 1.18 5/74 15254
/proc/meminfo: memFree=1512000/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=3036 CPUtime=0
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 403 0 0 0 0 0 0 0 18 0 1 0 158061047 3108864 381 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530437 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 759 381 65 8 0 431 0

[startup+0.103264 s]
/proc/loadavg: 0.50 0.65 1.18 5/74 15254
/proc/meminfo: memFree=1512000/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=4224 CPUtime=0.09
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 727 0 0 0 9 0 0 0 18 0 1 0 158061047 4325376 705 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530198 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 1056 705 65 8 0 728 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4224

[startup+0.511331 s]
/proc/loadavg: 0.50 0.65 1.18 5/74 15254
/proc/meminfo: memFree=1512000/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=9108 CPUtime=0.51
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 1924 0 0 0 50 1 0 0 22 0 1 0 158061047 9326592 1902 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 2277 1902 65 8 0 1949 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 9108

[startup+1.33147 s]
/proc/loadavg: 0.62 0.67 1.18 3/74 15254
/proc/meminfo: memFree=1496384/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=20064 CPUtime=1.32
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 4674 0 0 0 130 2 0 0 25 0 1 0 158061047 20545536 4652 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530422 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 5016 4652 65 8 0 4688 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20064

[startup+2.96774 s]
/proc/loadavg: 0.62 0.67 1.18 3/74 15254
/proc/meminfo: memFree=1480960/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=42240 CPUtime=2.95
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 10207 0 0 0 291 4 0 0 25 0 1 0 158061047 43253760 10185 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5166715 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 10560 10185 65 8 0 10232 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 42240

[startup+6.24729 s]
/proc/loadavg: 0.73 0.69 1.18 3/74 15254
/proc/meminfo: memFree=1433856/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=88440 CPUtime=6.24
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 21759 0 0 0 616 8 0 0 25 0 1 0 158061047 90562560 21737 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530994 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 22110 21737 65 8 0 21782 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 88440

[startup+12.7024 s]
/proc/loadavg: 0.83 0.71 1.19 3/74 15254
/proc/meminfo: memFree=1340800/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=176880 CPUtime=12.69
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 43894 0 0 0 1251 18 0 0 25 0 1 0 158061047 181125120 43872 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530888 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 44220 43872 65 8 0 43892 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 176880

[startup+25.5115 s]
/proc/loadavg: 1.01 0.76 1.20 3/74 15254
/proc/meminfo: memFree=1168192/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=354384 CPUtime=25.49
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 88264 0 0 0 2511 38 0 0 25 0 1 0 158061047 362889216 88242 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531004 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 88596 88242 65 8 0 88268 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 354384

[startup+51.1277 s]
/proc/loadavg: 1.47 0.89 1.22 3/74 15256
/proc/meminfo: memFree=813184/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=704980 CPUtime=51.1
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 175938 0 0 0 5035 75 0 0 25 0 1 0 158061047 721899520 175916 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 176245 175916 65 8 0 175917 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 704980



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+67.1094 s]
/proc/loadavg: 1.59 0.94 1.24 3/74 15256
/proc/meminfo: memFree=589120/2055920 swapFree=4192812/4192956
[pid=15253] ppid=15251 vsize=922764 CPUtime=67.08
/proc/15253/stat : 15253 (VALCSP) R 15251 15253 14571 0 -1 4194304 230374 0 0 0 6609 99 0 0 25 0 1 0 158061047 944910336 230352 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530234 0 0 4096 0 0 0 0 17 1 0 0
/proc/15253/statm: 230691 230352 65 8 0 230363 0
Current children cumulated CPU time (s) 67.08
Current children cumulated vsize (KiB) 922764

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 67.2561
CPU time (s): 67.2318
CPU user time (s): 66.099
CPU system time (s): 1.13283
CPU usage (%): 99.9639
Max. virtual memory (cumulated for all children) (KiB): 922764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 66.099
system time used= 1.13283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230374
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= 151

runsolver used 0.056991 s user time and 0.19097 s system time

The end

Launcher Data (download as text)

Begin job on node43 on Sat Jan  6 15:16:55 UTC 2007


IDJOB= 192094
IDBENCH= 3090
FILE ID= node43/192094-1168096610

PBS_JOBID= 3476750

Free space on /tmp= 66480 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-180.xml
COMMAND LINE= /tmp/evaluation/192094-1168096610/VALCSP /tmp/evaluation/192094-1168096610/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-192094-1168096610 -o ROOT/results/node43/solver-192094-1168096610 -C 1800 -M 900  /tmp/evaluation/192094-1168096610/VALCSP /tmp/evaluation/192094-1168096610/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  c796a276961c748e1ef388ea91350f5c

RANDOM SEED= 308023163

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		: 3000.278
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		: 3000.278
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:       1512480 kB
Buffers:         32980 kB
Cached:         410380 kB
SwapCached:          0 kB
Active:         127712 kB
Inactive:       348252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1512480 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2748 kB
Writeback:           0 kB
Mapped:          43968 kB
Slab:            52944 kB
Committed_AS:  3107472 kB
PageTables:       1748 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= 66480 MiB



End job on node43 on Sat Jan  6 15:18:11 UTC 2007