Trace number 192014

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) 81.2446 81.2757

General information on the benchmark

Namequeens/
queens-200.xml
MD5SUMbc9638d33bc2eb3542de683de70ee98a
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 benchmark2.26565
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables200
Number of constraints19900
Maximum constraint arity2
Maximum domain size200
Number of constraints which are defined in extension0
Number of constraints which are defined in intension19900
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/node40/watcher-192014-1168096503 -o ROOT/results/node40/solver-192014-1168096503 -C 1800 -M 900 /tmp/evaluation/192014-1168096503/VALCSP /tmp/evaluation/192014-1168096503/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: 0.09 0.44 1.16 2/68 31613
/proc/meminfo: memFree=1671368/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=3388 CPUtime=0
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 472 0 0 0 0 0 0 0 18 0 1 0 158050272 3469312 450 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 7345787 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 847 450 65 8 0 519 0

[startup+0.10292 s]
/proc/loadavg: 0.09 0.44 1.16 2/68 31613
/proc/meminfo: memFree=1671368/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=4312 CPUtime=0.09
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 711 0 0 0 9 0 0 0 18 0 1 0 158050272 4415488 689 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 1078 689 65 8 0 750 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4312

[startup+0.510968 s]
/proc/loadavg: 0.09 0.44 1.16 2/68 31613
/proc/meminfo: memFree=1671368/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=9064 CPUtime=0.5
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 1906 0 0 0 50 0 0 0 21 0 1 0 158050272 9281536 1884 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530258 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 2266 1884 65 8 0 1938 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9064

[startup+1.33107 s]
/proc/loadavg: 0.09 0.44 1.16 3/68 31613
/proc/meminfo: memFree=1656904/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=18436 CPUtime=1.31
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 4256 0 0 0 130 1 0 0 25 0 1 0 158050272 18878464 4234 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530894 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 4609 4234 65 8 0 4281 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 18436

[startup+2.96729 s]
/proc/loadavg: 0.16 0.45 1.16 2/68 31613
/proc/meminfo: memFree=1644616/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=35992 CPUtime=2.95
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 8638 0 0 0 292 3 0 0 25 0 1 0 158050272 36855808 8616 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 8998 8616 65 8 0 8670 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 35992

[startup+6.24972 s]
/proc/loadavg: 0.16 0.45 1.16 2/68 31613
/proc/meminfo: memFree=1606344/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=73876 CPUtime=6.24
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 18120 0 0 0 616 8 0 0 25 0 1 0 158050272 75649024 18098 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530962 0 0 4096 0 0 0 0 17 0 0 0
/proc/31612/statm: 18469 18098 65 8 0 18141 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 73876

[startup+12.7065 s]
/proc/loadavg: 0.29 0.47 1.16 2/68 31621
/proc/meminfo: memFree=1531016/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=145288 CPUtime=12.69
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 35968 0 0 0 1254 15 0 0 25 0 1 0 158050272 148774912 35946 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530264 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 36322 35946 65 8 0 35994 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 145288

[startup+25.6082 s]
/proc/loadavg: 0.40 0.49 1.16 2/68 31622
/proc/meminfo: memFree=1393672/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=293016 CPUtime=25.58
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 72902 0 0 0 2527 31 0 0 25 0 1 0 158050272 300048384 72880 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 73254 72880 65 8 0 72926 0
Current children cumulated CPU time (s) 25.58
Current children cumulated vsize (KiB) 293016

[startup+51.2155 s]
/proc/loadavg: 0.60 0.53 1.15 2/65 31627
/proc/meminfo: memFree=1104928/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=583264 CPUtime=51.19
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 145459 0 0 0 5057 62 0 0 25 0 1 0 158050272 597262336 145437 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 145816 145437 65 8 0 145488 0
Current children cumulated CPU time (s) 51.19
Current children cumulated vsize (KiB) 583264



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+81.1234 s]
/proc/loadavg: 0.76 0.57 1.14 2/65 31627
/proc/meminfo: memFree=759584/2055920 swapFree=4192812/4192956
[pid=31612] ppid=31607 vsize=922028 CPUtime=81.09
/proc/31612/stat : 31612 (VALCSP) R 31607 31612 30790 0 -1 4194304 230167 0 0 0 8008 101 0 0 25 0 1 0 158050272 944156672 230145 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/31612/statm: 230507 230145 65 8 0 230179 0
Current children cumulated CPU time (s) 81.09
Current children cumulated vsize (KiB) 922028

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 81.2757
CPU time (s): 81.2446
CPU user time (s): 80.0828
CPU system time (s): 1.16182
CPU usage (%): 99.9618
Max. virtual memory (cumulated for all children) (KiB): 922028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 80.0828
system time used= 1.16182
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230167
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= 173

runsolver used 0.080987 s user time and 0.176973 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Sat Jan  6 15:15:05 UTC 2007


IDJOB= 192014
IDBENCH= 3085
FILE ID= node40/192014-1168096503

PBS_JOBID= 3476742

Free space on /tmp= 66539 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-200.xml
COMMAND LINE= /tmp/evaluation/192014-1168096503/VALCSP /tmp/evaluation/192014-1168096503/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-192014-1168096503 -o ROOT/results/node40/solver-192014-1168096503 -C 1800 -M 900  /tmp/evaluation/192014-1168096503/VALCSP /tmp/evaluation/192014-1168096503/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  bc9638d33bc2eb3542de683de70ee98a

RANDOM SEED= 342562068

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		: 3000.239
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		: 3000.239
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:       1671776 kB
Buffers:         26428 kB
Cached:         267128 kB
SwapCached:          0 kB
Active:         111692 kB
Inactive:       202148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671776 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7692 kB
Writeback:           0 kB
Mapped:          30432 kB
Slab:            56056 kB
Committed_AS:  3006408 kB
PageTables:       1620 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= 66544 MiB



End job on node40 on Sat Jan  6 15:16:35 UTC 2007