Trace number 269394

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) 221.101 221.15

General information on the benchmark

Nametaillard/
os-taillard-20/os-taillard-20-95-4.xml
MD5SUMd4c3a845b4dc0f6fc0933440fcd2ee32
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1236
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
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/node52/watcher-269394-1168980596 -o ROOT/results/node52/solver-269394-1168980596 -C 1800 -M 900 /tmp/evaluation/269394-1168980596/VALCSP /tmp/evaluation/269394-1168980596/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: 0.08 0.57 0.71 2/65 23028
/proc/meminfo: memFree=1740472/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=2532 CPUtime=0
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 385 0 0 0 0 0 0 0 18 0 1 0 246458831 2592768 363 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 4744827 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 633 367 63 8 0 305 0

[startup+0.102241 s]
/proc/loadavg: 0.08 0.57 0.71 2/65 23028
/proc/meminfo: memFree=1740472/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=20472 CPUtime=0.1
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 4808 0 0 0 8 2 0 0 18 0 1 0 246458831 20963328 4786 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 5118 4786 65 8 0 4790 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 20472

[startup+0.510266 s]
/proc/loadavg: 0.08 0.57 0.71 2/65 23028
/proc/meminfo: memFree=1740472/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=20472 CPUtime=0.5
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 4808 0 0 0 48 2 0 0 21 0 1 0 246458831 20963328 4786 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 5118 4786 65 8 0 4790 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 20472

[startup+1.33032 s]
/proc/loadavg: 0.15 0.58 0.71 2/65 23028
/proc/meminfo: memFree=1721592/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=20472 CPUtime=1.32
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 4808 0 0 0 130 2 0 0 25 0 1 0 246458831 20963328 4786 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 5118 4786 65 8 0 4790 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20472

[startup+2.96643 s]
/proc/loadavg: 0.15 0.58 0.71 2/65 23028
/proc/meminfo: memFree=1715960/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=31428 CPUtime=2.96
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 7576 0 0 0 293 3 0 0 25 0 1 0 246458831 32182272 7554 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 7857 7554 65 8 0 7529 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 31428

[startup+6.24566 s]
/proc/loadavg: 0.22 0.58 0.71 2/65 23028
/proc/meminfo: memFree=1699512/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=42436 CPUtime=6.23
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 10319 0 0 0 619 4 0 0 25 0 1 0 246458831 43454464 10297 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 10609 10297 65 8 0 10281 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 42436

[startup+12.7001 s]
/proc/loadavg: 0.28 0.59 0.71 2/65 23028
/proc/meminfo: memFree=1671096/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=70808 CPUtime=12.69
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 17412 0 0 0 1262 7 0 0 25 0 1 0 246458831 72507392 17390 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 17702 17390 65 8 0 17374 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 70808

[startup+25.599 s]
/proc/loadavg: 0.39 0.60 0.72 2/65 23028
/proc/meminfo: memFree=1620472/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=126936 CPUtime=25.59
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 31435 0 0 0 2547 12 0 0 25 0 1 0 246458831 129982464 31413 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 31734 31413 65 8 0 31406 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 126936

[startup+51.1997 s]
/proc/loadavg: 0.63 0.64 0.73 2/65 23028
/proc/meminfo: memFree=1514936/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=232300 CPUtime=51.18
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 57780 0 0 0 5095 23 0 0 25 0 1 0 246458831 237875200 57758 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 58075 57758 65 8 0 57747 0
Current children cumulated CPU time (s) 51.18
Current children cumulated vsize (KiB) 232300

[startup+102.402 s]
/proc/loadavg: 0.84 0.69 0.74 2/65 23028
/proc/meminfo: memFree=1305080/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=441424 CPUtime=102.37
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 110077 0 0 0 10193 44 0 0 25 0 1 0 246458831 452018176 110055 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 110356 110055 65 8 0 110028 0
Current children cumulated CPU time (s) 102.37
Current children cumulated vsize (KiB) 441424

[startup+162.416 s]
/proc/loadavg: 0.94 0.75 0.75 2/65 23028
/proc/meminfo: memFree=1059192/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=681544 CPUtime=162.37
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 170084 0 0 0 16169 68 0 0 25 0 1 0 246458831 697901056 170062 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 170386 170062 65 8 0 170058 0
Current children cumulated CPU time (s) 162.37
Current children cumulated vsize (KiB) 681544



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+220.998 s]
/proc/loadavg: 0.98 0.79 0.76 2/65 23028
/proc/meminfo: memFree=813816/2055920 swapFree=4192812/4192956
[pid=23027] ppid=23025 vsize=926384 CPUtime=220.95
/proc/23027/stat : 23027 (VALCSP) R 23025 23027 22631 0 -1 4194304 231302 0 0 0 22002 93 0 0 25 0 1 0 246458831 948617216 231280 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/23027/statm: 231596 231280 65 8 0 231268 0
Current children cumulated CPU time (s) 220.95
Current children cumulated vsize (KiB) 926384

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 221.15
CPU time (s): 221.101
CPU user time (s): 220.024
CPU system time (s): 1.07784
CPU usage (%): 99.978
Max. virtual memory (cumulated for all children) (KiB): 926384

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 220.024
system time used= 1.07784
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231302
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= 343

runsolver used 0.154976 s user time and 0.444932 s system time

The end

Launcher Data (download as text)

Begin job on node52 on Tue Jan 16 20:49:58 UTC 2007


IDJOB= 269394
IDBENCH= 6589
IDSOLVER= 90
FILE ID= node52/269394-1168980596

PBS_JOBID= 3566260

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-95-4.xml
COMMAND LINE= /tmp/evaluation/269394-1168980596/VALCSP /tmp/evaluation/269394-1168980596/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-269394-1168980596 -o ROOT/results/node52/solver-269394-1168980596 -C 1800 -M 900  /tmp/evaluation/269394-1168980596/VALCSP /tmp/evaluation/269394-1168980596/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  d4c3a845b4dc0f6fc0933440fcd2ee32

RANDOM SEED= 673770664

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		: 3000.232
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		: 3000.232
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:       1741080 kB
Buffers:         29448 kB
Cached:         189036 kB
SwapCached:          0 kB
Active:          33100 kB
Inactive:       200644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1741080 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1112 kB
Writeback:           0 kB
Mapped:          25440 kB
Slab:            67084 kB
Committed_AS:  5199228 kB
PageTables:       1484 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 node52 on Tue Jan 16 20:53:46 UTC 2007