Trace number 268615

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) 144.382 144.516

General information on the benchmark

Namefapp/fapp26-30/fapp28/
fapp28-2800-6.xml
MD5SUM5d642f198e16aecc13dcb273d56311fe
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 benchmark32.5501
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables2800
Number of constraints22569
Maximum constraint arity2
Maximum domain size998
Number of constraints which are defined in extension0
Number of constraints which are defined in intension22569
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-268615-1168979628 -o ROOT/results/node43/solver-268615-1168979628 -C 1800 -M 900 /tmp/evaluation/268615-1168979628/VALCSP /tmp/evaluation/268615-1168979628/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: 1.96 2.00 1.68 5/73 2027
/proc/meminfo: memFree=1625760/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=20448 CPUtime=0.01
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 4598 0 0 0 0 1 0 0 19 0 1 0 246361950 20938752 4576 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5166715 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 5112 4584 64 8 0 4784 0

[startup+0.130376 s]
/proc/loadavg: 1.96 2.00 1.68 5/73 2027
/proc/meminfo: memFree=1625760/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=97056 CPUtime=0.12
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 22951 0 0 0 4 8 0 0 20 0 1 0 246361950 99385344 22929 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5166715 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 24264 22935 64 8 0 23936 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 97056

[startup+0.538442 s]
/proc/loadavg: 1.96 2.00 1.68 5/73 2027
/proc/meminfo: memFree=1625760/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=139564 CPUtime=0.53
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 33472 0 0 0 40 13 0 0 23 0 1 0 246361950 142913536 33450 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 34891 33450 65 8 0 34563 0
Current children cumulated CPU time (s) 0.53
Current children cumulated vsize (KiB) 139564

[startup+1.35858 s]
/proc/loadavg: 1.96 2.00 1.68 3/73 2027
/proc/meminfo: memFree=1502752/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=143392 CPUtime=1.34
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 34448 0 0 0 121 13 0 0 25 0 1 0 246361950 146833408 34426 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528936 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 35848 34426 65 8 0 35520 0
Current children cumulated CPU time (s) 1.34
Current children cumulated vsize (KiB) 143392

[startup+2.99485 s]
/proc/loadavg: 1.96 2.00 1.68 3/73 2027
/proc/meminfo: memFree=1498848/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=151180 CPUtime=2.98
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 36399 0 0 0 284 14 0 0 25 0 1 0 246361950 154808320 36377 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529265 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 37795 36377 65 8 0 37467 0
Current children cumulated CPU time (s) 2.98
Current children cumulated vsize (KiB) 151180

[startup+6.27639 s]
/proc/loadavg: 1.97 2.00 1.68 3/73 2027
/proc/meminfo: memFree=1474080/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=171904 CPUtime=6.26
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 41555 0 0 0 610 16 0 0 25 0 1 0 246361950 176029696 41533 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 42976 41533 65 8 0 42648 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 171904

[startup+12.7315 s]
/proc/loadavg: 1.97 2.00 1.68 3/73 2027
/proc/meminfo: memFree=1444832/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=203056 CPUtime=12.72
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 49361 0 0 0 1252 20 0 0 25 0 1 0 246361950 207929344 49339 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 50764 49339 65 8 0 50436 0
Current children cumulated CPU time (s) 12.72
Current children cumulated vsize (KiB) 203056

[startup+25.5416 s]
/proc/loadavg: 1.97 2.00 1.69 3/73 2027
/proc/meminfo: memFree=1379680/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=270112 CPUtime=25.52
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 66130 0 0 0 2526 26 0 0 25 0 1 0 246361950 276594688 66108 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528612 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 67528 66108 65 8 0 67200 0
Current children cumulated CPU time (s) 25.52
Current children cumulated vsize (KiB) 270112

[startup+51.1558 s]
/proc/loadavg: 1.83 1.96 1.68 2/68 2064
/proc/meminfo: memFree=1232824/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=421252 CPUtime=51.11
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 103913 0 0 0 5070 41 0 0 25 0 1 0 246361950 431362048 103891 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 105313 103891 65 8 0 104985 0
Current children cumulated CPU time (s) 51.11
Current children cumulated vsize (KiB) 421252

[startup+102.374 s]
/proc/loadavg: 1.36 1.81 1.64 2/68 2133
/proc/meminfo: memFree=939912/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=713632 CPUtime=102.26
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 177007 0 0 0 10155 71 0 0 25 0 1 0 246361950 730759168 176985 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 178408 176985 65 8 0 178080 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 713632



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+144.369 s]
/proc/loadavg: 1.17 1.69 1.61 2/65 2170
/proc/meminfo: memFree=730912/2055920 swapFree=4190672/4192956
[pid=2026] ppid=2024 vsize=923512 CPUtime=144.23
/proc/2026/stat : 2026 (VALCSP) R 2024 2026 1606 0 -1 4194304 229476 0 0 0 14332 91 0 0 25 0 1 0 246361950 945676288 229454 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/2026/statm: 230878 229454 65 8 0 230550 0
Current children cumulated CPU time (s) 144.23
Current children cumulated vsize (KiB) 923512

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 144.516
CPU time (s): 144.382
CPU user time (s): 143.321
CPU system time (s): 1.06084
CPU usage (%): 99.9072
Max. virtual memory (cumulated for all children) (KiB): 923512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 143.321
system time used= 1.06084
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229476
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= 5
involuntary context switches= 450

runsolver used 0.155976 s user time and 0.352946 s system time

The end



Launcher Data (download as text)




Begin job on node43 on Tue Jan 16 20:33:48 UTC 2007


IDJOB= 268615
IDBENCH= 4554
IDSOLVER= 90
FILE ID= node43/268615-1168979628

PBS_JOBID= 3566161

Free space on /tmp= 66561 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp26-30/fapp28/fapp28-2800-6.xml
COMMAND LINE= /tmp/evaluation/268615-1168979628/VALCSP /tmp/evaluation/268615-1168979628/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-268615-1168979628 -o ROOT/results/node43/solver-268615-1168979628 -C 1800 -M 900  /tmp/evaluation/268615-1168979628/VALCSP /tmp/evaluation/268615-1168979628/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  5d642f198e16aecc13dcb273d56311fe

RANDOM SEED= 281287334

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:       1640896 kB
Buffers:         41004 kB
Cached:         284852 kB
SwapCached:        612 kB
Active:         169756 kB
Inactive:       179684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1640896 kB
SwapTotal:     4192956 kB
SwapFree:      4190672 kB
Dirty:            3252 kB
Writeback:           0 kB
Mapped:          32420 kB
Slab:            51112 kB
Committed_AS:  5103580 kB
PageTables:       1704 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= 66561 MiB



End job on node43 on Tue Jan 16 20:36:16 UTC 2007