Trace number 206181

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) 87.6637 88.8766

General information on the benchmark

Namefapp/fapp36-40/fapp36/
fapp36-2000-3.xml
MD5SUMd481a9361d80c6f0d8e85c5a29d689ed
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.13076
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints18600
Maximum constraint arity2
Maximum domain size454
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18600
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-206181-1168170068 -o ROOT/results/node34/solver-206181-1168170068 -C 1800 -M 900 /tmp/evaluation/206181-1168170068/VALCSP /tmp/evaluation/206181-1168170068/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: 1.50 1.11 1.04 5/73 7972
/proc/meminfo: memFree=1638200/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=18540 CPUtime=0
/proc/7971/stat : 7971 (runsolver) R 7969 7971 7444 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 165400504 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 254195330343 0 0 4096 24578 0 0 0 17 1 0 0
/proc/7971/statm: 4635 279 244 17 0 2626 0

[startup+0.131285 s]
/proc/loadavg: 1.50 1.11 1.04 5/73 7972
/proc/meminfo: memFree=1638200/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=64992 CPUtime=0.11
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 15875 0 0 0 6 5 0 0 20 0 1 0 165400504 66551808 15853 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530192 0 0 4096 0 0 0 0 17 1 0 0
/proc/7971/statm: 16248 15853 65 8 0 15920 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 64992

[startup+0.539313 s]
/proc/loadavg: 1.50 1.11 1.04 5/73 7972
/proc/meminfo: memFree=1638200/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=68160 CPUtime=0.53
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 16686 0 0 0 47 6 0 0 24 0 1 0 165400504 69795840 16664 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/7971/statm: 17040 16664 65 8 0 16712 0
Current children cumulated CPU time (s) 0.53
Current children cumulated vsize (KiB) 68160

[startup+1.36038 s]
/proc/loadavg: 1.54 1.13 1.04 3/73 7972
/proc/meminfo: memFree=1566328/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=75288 CPUtime=1.33
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 18463 0 0 0 127 6 0 0 25 0 1 0 165400504 77094912 18441 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530193 0 0 4096 0 0 0 0 17 1 0 0
/proc/7971/statm: 18822 18441 65 8 0 18494 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 75288

[startup+3.00251 s]
/proc/loadavg: 1.54 1.13 1.04 3/73 7972
/proc/meminfo: memFree=1554872/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=91524 CPUtime=2.97
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 22530 0 0 0 289 8 0 0 25 0 1 0 165400504 93720576 22508 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530848 0 0 4096 0 0 0 0 17 1 0 0
/proc/7971/statm: 22881 22508 65 8 0 22553 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 91524

[startup+6.28378 s]
/proc/loadavg: 1.57 1.14 1.05 3/73 7972
/proc/meminfo: memFree=1521848/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=123336 CPUtime=6.23
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 30489 0 0 0 612 11 0 0 25 0 1 0 165400504 126296064 30467 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530198 0 0 4096 0 0 0 0 17 1 0 0
/proc/7971/statm: 30834 30467 65 8 0 30506 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 123336

[startup+12.7533 s]
/proc/loadavg: 1.69 1.17 1.06 4/84 8023
/proc/meminfo: memFree=1397024/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=184716 CPUtime=12.47
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 45833 0 0 0 1229 18 0 0 25 0 1 0 165400504 189149184 45811 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/7971/statm: 46179 45811 65 8 0 45851 0
Current children cumulated CPU time (s) 12.47
Current children cumulated vsize (KiB) 184716

[startup+25.579 s]
/proc/loadavg: 1.90 1.23 1.08 5/84 8023
/proc/meminfo: memFree=1038568/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=300876 CPUtime=24.87
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 74878 0 0 0 2455 32 0 0 25 0 1 0 165400504 308097024 74856 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530236 0 0 4096 0 0 0 0 17 0 0 0
/proc/7971/statm: 75219 74856 65 8 0 74891 0
Current children cumulated CPU time (s) 24.87
Current children cumulated vsize (KiB) 300876

[startup+51.2784 s]
/proc/loadavg: 1.94 1.30 1.11 3/84 8023
/proc/meminfo: memFree=523496/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=552072 CPUtime=50.35
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 137681 0 0 0 4974 61 0 0 25 0 1 0 165400504 565321728 137659 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/7971/statm: 138018 137659 65 8 0 137690 0
Current children cumulated CPU time (s) 50.35
Current children cumulated vsize (KiB) 552072



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+88.7365 s]
/proc/loadavg: 2.09 1.41 1.15 3/81 8096
/proc/meminfo: memFree=424392/2055920 swapFree=4192812/4192956
[pid=7971] ppid=7969 vsize=922464 CPUtime=87.52
/proc/7971/stat : 7971 (VALCSP) R 7969 7971 7444 0 -1 4194304 230262 0 0 0 8647 105 0 0 25 0 1 0 165400504 944603136 230240 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530978 0 0 4096 0 0 0 0 17 0 0 0
/proc/7971/statm: 230616 230240 65 8 0 230288 0
Current children cumulated CPU time (s) 87.52
Current children cumulated vsize (KiB) 922464

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 88.8766
CPU time (s): 87.6637
CPU user time (s): 86.4759
CPU system time (s): 1.18782
CPU usage (%): 98.6353
Max. virtual memory (cumulated for all children) (KiB): 922464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 86.4759
system time used= 1.18782
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230262
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= 1687

runsolver used 0.103984 s user time and 0.235964 s system time

The end



Launcher Data (download as text)




Begin job on node34 on Sun Jan  7 11:41:08 UTC 2007


IDJOB= 206181
IDBENCH= 4189
FILE ID= node34/206181-1168170068

PBS_JOBID= 3479018

Free space on /tmp= 66538 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp36-40/fapp36/fapp36-2000-3.xml
COMMAND LINE= /tmp/evaluation/206181-1168170068/VALCSP /tmp/evaluation/206181-1168170068/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-206181-1168170068 -o ROOT/results/node34/solver-206181-1168170068 -C 1800 -M 900  /tmp/evaluation/206181-1168170068/VALCSP /tmp/evaluation/206181-1168170068/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  d481a9361d80c6f0d8e85c5a29d689ed

RANDOM SEED= 238937009

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:       1638616 kB
Buffers:         31196 kB
Cached:         237540 kB
SwapCached:          0 kB
Active:         227088 kB
Inactive:       123476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1638616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2648 kB
Writeback:           0 kB
Mapped:          95516 kB
Slab:            52068 kB
Committed_AS:  2895392 kB
PageTables:       1932 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= 66540 MiB



End job on node34 on Sun Jan  7 11:42:37 UTC 2007