Trace number 200827

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) 87.2237 87.6625

General information on the benchmark

Namefapp/fapp11-15/fapp14/
fapp14-2500-10.xml
MD5SUM7da57cc6785d866f073effab049038df
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 benchmark331.113
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables2500
Number of constraints40767
Maximum constraint arity2
Maximum domain size362
Number of constraints which are defined in extension0
Number of constraints which are defined in intension40767
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/node11/watcher-200827-1168143765 -o ROOT/results/node11/solver-200827-1168143765 -C 1800 -M 900 /tmp/evaluation/200827-1168143765/VALCSP /tmp/evaluation/200827-1168143765/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: 2.00 2.01 2.00 5/88 23007
/proc/meminfo: memFree=1559600/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=3212 CPUtime=0
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 505 0 0 0 0 0 0 0 20 0 1 0 162771499 3289088 483 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134534846 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 803 483 62 8 0 475 0

[startup+0.108512 s]
/proc/loadavg: 2.00 2.01 2.00 5/88 23007
/proc/meminfo: memFree=1559600/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=75176 CPUtime=0.09
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 17973 0 0 0 2 7 0 0 20 0 1 0 162771499 76980224 17951 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 8414843 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 18794 17951 62 8 0 18466 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 75176

[startup+0.516583 s]
/proc/loadavg: 2.00 2.01 2.00 5/88 23007
/proc/meminfo: memFree=1559600/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=95668 CPUtime=0.5
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 22884 0 0 0 41 9 0 0 24 0 1 0 162771499 97964032 22862 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530881 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 23917 22862 65 8 0 23589 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 95668

[startup+1.34075 s]
/proc/loadavg: 2.00 2.01 2.00 4/88 23007
/proc/meminfo: memFree=1462320/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=103192 CPUtime=1.31
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 24773 0 0 0 121 10 0 0 25 0 1 0 162771499 105668608 24751 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530552 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 25798 24751 65 8 0 25470 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 103192

[startup+2.97807 s]
/proc/loadavg: 2.08 2.02 2.01 3/88 23007
/proc/meminfo: memFree=1452400/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=117844 CPUtime=2.95
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 28419 0 0 0 283 12 0 0 25 0 1 0 162771499 120672256 28397 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530307 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 29461 28397 65 8 0 29133 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 117844

[startup+6.26372 s]
/proc/loadavg: 2.08 2.02 2.01 3/88 23007
/proc/meminfo: memFree=1420792/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=148468 CPUtime=6.22
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 36077 0 0 0 607 15 0 0 25 0 1 0 162771499 152031232 36055 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530552 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 37117 36055 65 8 0 36789 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 148468

[startup+12.726 s]
/proc/loadavg: 2.07 2.02 2.00 3/88 23007
/proc/meminfo: memFree=1357624/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=208792 CPUtime=12.64
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 51186 0 0 0 1243 21 0 0 25 0 1 0 162771499 213803008 51164 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 52198 51164 65 8 0 51870 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 208792

[startup+25.5516 s]
/proc/loadavg: 2.06 2.02 2.00 3/88 23007
/proc/meminfo: memFree=1239864/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=331156 CPUtime=25.42
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 81762 0 0 0 2508 34 0 0 25 0 1 0 162771499 339103744 81740 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 82789 81740 65 8 0 82461 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 331156

[startup+51.1966 s]
/proc/loadavg: 2.04 2.02 2.00 4/88 23007
/proc/meminfo: memFree=990136/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=576676 CPUtime=50.93
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 143159 0 0 0 5032 61 0 0 25 0 1 0 162771499 590516224 143137 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 144169 143137 65 8 0 143841 0
Current children cumulated CPU time (s) 50.93
Current children cumulated vsize (KiB) 576676



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+87.5099 s]
/proc/loadavg: 2.02 2.02 2.00 3/88 23007
/proc/meminfo: memFree=640760/2055920 swapFree=4192812/4192956
[pid=23006] ppid=23004 vsize=921856 CPUtime=87.07
/proc/23006/stat : 23006 (VALCSP) R 23004 23006 22951 0 -1 4194304 229432 0 0 0 8612 95 0 0 25 0 1 0 162771499 943980544 229410 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530207 0 0 4096 0 0 0 0 17 1 0 0
/proc/23006/statm: 230464 229410 65 8 0 230136 0
Current children cumulated CPU time (s) 87.07
Current children cumulated vsize (KiB) 921856

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 87.6625
CPU time (s): 87.2237
CPU user time (s): 86.1249
CPU system time (s): 1.09883
CPU usage (%): 99.4995
Max. virtual memory (cumulated for all children) (KiB): 921856

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 86.1249
system time used= 1.09883
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229432
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= 2741

runsolver used 0.105983 s user time and 0.293955 s system time

The end



Launcher Data (download as text)




Begin job on node11 on Sun Jan  7 04:22:45 UTC 2007


IDJOB= 200827
IDBENCH= 3729
FILE ID= node11/200827-1168143765

PBS_JOBID= 3477869

Free space on /tmp= 66336 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp11-15/fapp14/fapp14-2500-10.xml
COMMAND LINE= /tmp/evaluation/200827-1168143765/VALCSP /tmp/evaluation/200827-1168143765/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-200827-1168143765 -o ROOT/results/node11/solver-200827-1168143765 -C 1800 -M 900  /tmp/evaluation/200827-1168143765/VALCSP /tmp/evaluation/200827-1168143765/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  7da57cc6785d866f073effab049038df

RANDOM SEED= 6651600

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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1560272 kB
Buffers:         30216 kB
Cached:         334672 kB
SwapCached:          0 kB
Active:         303380 kB
Inactive:       123672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1560272 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5972 kB
Writeback:           0 kB
Mapped:          82464 kB
Slab:            53308 kB
Committed_AS:  4738996 kB
PageTables:       2348 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= 66336 MiB



End job on node11 on Sun Jan  7 04:24:12 UTC 2007