Trace number 268296

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) 76.8733 77.265

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-0.xml
MD5SUMde8f2a147fa6ea5211f6e4abd9ce9f5a
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 benchmark6.68698
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints26753
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension26753
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/node23/watcher-268296-1168978509 -o ROOT/results/node23/solver-268296-1168978509 -C 1800 -M 900 /tmp/evaluation/268296-1168978509/VALCSP /tmp/evaluation/268296-1168978509/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: 1.38 1.17 0.58 4/81 4583
/proc/meminfo: memFree=1791704/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=3748 CPUtime=0
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 667 0 0 0 0 0 0 0 18 0 1 0 246245620 3837952 645 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/4582/statm: 970 653 65 8 0 642 0

[startup+0.103783 s]
/proc/loadavg: 1.38 1.17 0.58 4/81 4583
/proc/meminfo: memFree=1791704/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=61100 CPUtime=0.09
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 14859 0 0 0 3 6 0 0 18 0 1 0 246245620 62566400 14837 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528607 0 0 4096 0 0 0 0 17 1 0 0
/proc/4582/statm: 15275 14837 65 8 0 14947 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 61100

[startup+0.511795 s]
/proc/loadavg: 1.38 1.17 0.58 4/81 4583
/proc/meminfo: memFree=1791704/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=64928 CPUtime=0.49
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 15811 0 0 0 42 7 0 0 21 0 1 0 246245620 66486272 15789 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 16232 15789 65 8 0 15904 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 64928

[startup+1.33295 s]
/proc/loadavg: 1.38 1.17 0.58 3/86 4603
/proc/meminfo: memFree=1655072/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=74564 CPUtime=1.31
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 18241 0 0 0 123 8 0 0 25 0 1 0 246245620 76353536 18219 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 18641 18219 65 8 0 18313 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 74564

[startup+2.97527 s]
/proc/loadavg: 1.38 1.17 0.58 3/86 4603
/proc/meminfo: memFree=1637280/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=91988 CPUtime=2.94
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 22591 0 0 0 284 10 0 0 25 0 1 0 246245620 94195712 22569 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 22997 22569 65 8 0 22669 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 91988

[startup+6.2549 s]
/proc/loadavg: 1.43 1.18 0.58 3/86 4603
/proc/meminfo: memFree=1577440/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=128816 CPUtime=6.2
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 31799 0 0 0 606 14 0 0 25 0 1 0 246245620 131907584 31777 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528604 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 32204 31777 65 8 0 31876 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 128816

[startup+12.7202 s]
/proc/loadavg: 1.47 1.19 0.59 3/86 4603
/proc/meminfo: memFree=1460512/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=199832 CPUtime=12.64
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 49563 0 0 0 1244 20 0 0 25 0 1 0 246245620 204627968 49541 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528607 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 49958 49541 65 8 0 49630 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 199832

[startup+25.5336 s]
/proc/loadavg: 1.56 1.22 0.61 3/86 4603
/proc/meminfo: memFree=1245728/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=343712 CPUtime=25.4
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 85519 0 0 0 2506 34 0 0 25 0 1 0 246245620 351961088 85497 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528653 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 85928 85497 65 8 0 85600 0
Current children cumulated CPU time (s) 25.4
Current children cumulated vsize (KiB) 343712

[startup+51.1706 s]
/proc/loadavg: 1.73 1.29 0.65 3/86 4603
/proc/meminfo: memFree=798880/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=631604 CPUtime=50.9
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 157506 0 0 0 5029 61 0 0 25 0 1 0 246245620 646762496 157484 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 157901 157484 65 8 0 157573 0
Current children cumulated CPU time (s) 50.9
Current children cumulated vsize (KiB) 631604



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+77.1126 s]
/proc/loadavg: 1.82 1.35 0.68 4/86 4603
/proc/meminfo: memFree=343200/2055920 swapFree=4156112/4192956
[pid=4582] ppid=4580 vsize=922016 CPUtime=76.73
/proc/4582/stat : 4582 (VALCSP) R 4580 4582 4321 0 -1 4194304 230118 0 0 0 7583 90 0 0 25 0 1 0 246245620 944144384 230096 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/4582/statm: 230504 230096 65 8 0 230176 0
Current children cumulated CPU time (s) 76.73
Current children cumulated vsize (KiB) 922016

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 77.265
CPU time (s): 76.8733
CPU user time (s): 75.8315
CPU system time (s): 1.04184
CPU usage (%): 99.493
Max. virtual memory (cumulated for all children) (KiB): 922016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 75.8315
system time used= 1.04184
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230118
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= 2753

runsolver used 0.067989 s user time and 0.217966 s system time

The end



Launcher Data (download as text)




Begin job on node23 on Tue Jan 16 20:15:11 UTC 2007


IDJOB= 268296
IDBENCH= 3823
IDSOLVER= 90
FILE ID= node23/268296-1168978509

PBS_JOBID= 3566199

Free space on /tmp= 66561 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-0.xml
COMMAND LINE= /tmp/evaluation/268296-1168978509/VALCSP /tmp/evaluation/268296-1168978509/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-268296-1168978509 -o ROOT/results/node23/solver-268296-1168978509 -C 1800 -M 900  /tmp/evaluation/268296-1168978509/VALCSP /tmp/evaluation/268296-1168978509/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  de8f2a147fa6ea5211f6e4abd9ce9f5a

RANDOM SEED= 189889054

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		: 3000.265
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		: 3000.265
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:       1792248 kB
Buffers:         36388 kB
Cached:         125844 kB
SwapCached:       8040 kB
Active:          58272 kB
Inactive:       135968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1792248 kB
SwapTotal:     4192956 kB
SwapFree:      4156112 kB
Dirty:            3920 kB
Writeback:           0 kB
Mapped:          47044 kB
Slab:            54544 kB
Committed_AS:  4418496 kB
PageTables:       2124 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= 66557 MiB



End job on node23 on Tue Jan 16 20:16:30 UTC 2007