Trace number 268625

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) 78.1501 78.344

General information on the benchmark

Namefapp/fapp26-30/fapp26/
fapp26-2300-6.xml
MD5SUMa2bf961eebc9ad7657c99a99d45c26b9
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 benchmark7.56185
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2300
Number of constraints24253
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24253
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/node44/watcher-268625-1168979657 -o ROOT/results/node44/solver-268625-1168979657 -C 1800 -M 900 /tmp/evaluation/268625-1168979657/VALCSP /tmp/evaluation/268625-1168979657/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: 1.92 1.95 1.67 5/73 26574
/proc/meminfo: memFree=1451672/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=2268 CPUtime=0
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 293 0 0 0 0 0 0 0 20 0 1 0 246364757 2322432 271 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134533499 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 567 271 64 8 0 239 0

[startup+0.106114 s]
/proc/loadavg: 1.92 1.95 1.67 5/73 26574
/proc/meminfo: memFree=1451672/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=69240 CPUtime=0.09
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 17045 0 0 0 2 7 0 0 20 0 1 0 246364757 70901760 17023 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 11724166 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 17310 17023 64 8 0 16982 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 69240

[startup+0.514146 s]
/proc/loadavg: 1.92 1.95 1.67 5/73 26574
/proc/meminfo: memFree=1451672/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=81296 CPUtime=0.5
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 19920 0 0 0 42 8 0 0 24 0 1 0 246364757 83247104 19898 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 20324 19898 65 8 0 19996 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 81296

[startup+1.33523 s]
/proc/loadavg: 1.92 1.95 1.67 3/73 26574
/proc/meminfo: memFree=1365976/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=89216 CPUtime=1.31
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 21917 0 0 0 122 9 0 0 25 0 1 0 246364757 91357184 21895 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 22304 21895 65 8 0 21976 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 89216

[startup+2.9774 s]
/proc/loadavg: 1.92 1.95 1.67 3/73 26574
/proc/meminfo: memFree=1354264/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=107168 CPUtime=2.94
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 26405 0 0 0 283 11 0 0 25 0 1 0 246364757 109740032 26383 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 26792 26383 65 8 0 26464 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 107168

[startup+6.25574 s]
/proc/loadavg: 1.93 1.95 1.67 3/73 26574
/proc/meminfo: memFree=1319768/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=140036 CPUtime=6.2
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 34633 0 0 0 606 14 0 0 25 0 1 0 246364757 143396864 34611 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 35009 34611 65 8 0 34681 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 140036

[startup+12.7164 s]
/proc/loadavg: 1.94 1.96 1.67 3/73 26574
/proc/meminfo: memFree=1250072/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=206828 CPUtime=12.61
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 51309 0 0 0 1240 21 0 0 25 0 1 0 246364757 211791872 51287 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/26573/statm: 51707 51287 65 8 0 51379 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 206828

[startup+25.5297 s]
/proc/loadavg: 1.87 1.94 1.67 2/68 26583
/proc/meminfo: memFree=1125000/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=339620 CPUtime=25.36
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 84513 0 0 0 2502 34 0 0 25 0 1 0 246364757 347770880 84491 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528706 0 0 4096 0 0 0 0 17 0 0 0
/proc/26573/statm: 84905 84491 65 8 0 84577 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 339620

[startup+51.1503 s]
/proc/loadavg: 1.57 1.86 1.65 2/68 26621
/proc/meminfo: memFree=841032/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=620120 CPUtime=50.96
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 154633 0 0 0 5033 63 0 0 25 0 1 0 246364757 635002880 154611 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 0 0 0
/proc/26573/statm: 155030 154611 65 8 0 154702 0
Current children cumulated CPU time (s) 50.96
Current children cumulated vsize (KiB) 620120



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+78.2061 s]
/proc/loadavg: 1.34 1.78 1.63 2/68 26659
/proc/meminfo: memFree=533960/2055920 swapFree=4191892/4192956
[pid=26573] ppid=26571 vsize=922148 CPUtime=78.01
/proc/26573/stat : 26573 (VALCSP) R 26571 26573 26144 0 -1 4194304 230165 0 0 0 7707 94 0 0 25 0 1 0 246364757 944279552 230143 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528936 0 0 4096 0 0 0 0 17 0 0 0
/proc/26573/statm: 230537 230143 65 8 0 230209 0
Current children cumulated CPU time (s) 78.01
Current children cumulated vsize (KiB) 922148

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 78.344
CPU time (s): 78.1501
CPU user time (s): 77.0723
CPU system time (s): 1.07784
CPU usage (%): 99.7525
Max. virtual memory (cumulated for all children) (KiB): 922148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 77.0723
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= 230165
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= 670

runsolver used 0.087986 s user time and 0.201969 s system time

The end



Launcher Data (download as text)




Begin job on node44 on Tue Jan 16 20:34:17 UTC 2007


IDJOB= 268625
IDBENCH= 4564
IDSOLVER= 90
FILE ID= node44/268625-1168979657

PBS_JOBID= 3566158

Free space on /tmp= 66561 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp26-30/fapp26/fapp26-2300-6.xml
COMMAND LINE= /tmp/evaluation/268625-1168979657/VALCSP /tmp/evaluation/268625-1168979657/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-268625-1168979657 -o ROOT/results/node44/solver-268625-1168979657 -C 1800 -M 900  /tmp/evaluation/268625-1168979657/VALCSP /tmp/evaluation/268625-1168979657/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  a2bf961eebc9ad7657c99a99d45c26b9

RANDOM SEED= 920119134

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		: 3000.213
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		: 3000.213
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:       1452152 kB
Buffers:         47016 kB
Cached:         453196 kB
SwapCached:        268 kB
Active:         165144 kB
Inactive:       358808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1452152 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            3448 kB
Writeback:           0 kB
Mapped:          33488 kB
Slab:            65292 kB
Committed_AS:  4638228 kB
PageTables:       1712 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 node44 on Tue Jan 16 20:35:37 UTC 2007