Trace number 276682

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
Toolbar_MaxSat 2007-01-19? (MO) 1.09 1.14651

General information on the benchmark

Nametightness/tightness0.65/
rand-2-40-40-135-650-29_ext.xml
MD5SUMe90797268d71e6eb172828a0a7e4423c
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkMOPT
Best Number of satisfied constraints134
Best CPU time to get the best result obtained on this benchmark56.0185
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables40
Number of constraints135
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension135
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c conversion script
c 
c 

translate /tmp/evaluation/276682-1169244167/unknown.xml to /tmp/evaluation/276682-1169244167/unknown.wcsp

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node33/watcher-276682-1169244167 -o ROOT/results/node33/solver-276682-1169244167 -C 2400 -M 900 /tmp/evaluation/276682-1169244167/solver.sh /tmp/evaluation/276682-1169244167/unknown 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 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: 2.05 2.05 1.92 5/80 24929
/proc/meminfo: memFree=1562024/2055920 swapFree=4192224/4192956
[pid=24928] ppid=24926 vsize=18540 CPUtime=0
/proc/24928/stat : 24928 (runsolver) R 24926 24928 24433 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 272810589 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 210824129831 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24928/statm: 4635 279 244 17 0 2626 0

[startup+0.109435 s]
/proc/loadavg: 2.05 2.05 1.92 5/80 24929
/proc/meminfo: memFree=1562024/2055920 swapFree=4192224/4192956
[pid=24928] ppid=24926 vsize=47564 CPUtime=0.01
/proc/24928/stat : 24928 (solver.sh) S 24926 24928 24433 0 -1 4194304 876 2245 0 0 0 0 0 1 21 0 1 0 272810589 48705536 361 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 210823736154 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24928/statm: 11891 361 245 79 0 217 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47564

[startup+0.517518 s]
/proc/loadavg: 2.05 2.05 1.92 5/80 24929
/proc/meminfo: memFree=1562024/2055920 swapFree=4192224/4192956
[pid=24928] ppid=24926 vsize=47564 CPUtime=0.21
/proc/24928/stat : 24928 (solver.sh) S 24926 24928 24433 0 -1 4194304 905 2743 0 0 0 0 18 3 15 0 1 0 272810589 48705536 361 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 210823736154 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24928/statm: 11891 361 245 79 0 217 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 47564



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.12965 s]
/proc/loadavg: 2.05 2.05 1.92 3/81 24950
/proc/meminfo: memFree=1014432/2055920 swapFree=4192224/4192956
[pid=24928] ppid=24926 vsize=47564 CPUtime=0.21
/proc/24928/stat : 24928 (solver.sh) S 24926 24928 24433 0 -1 4194304 905 2743 0 0 0 0 18 3 15 0 1 0 272810589 48705536 361 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 210823736154 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24928/statm: 11891 361 245 79 0 217 0
[pid=24947] ppid=24928 vsize=881012 CPUtime=0.88
/proc/24947/stat : 24947 (toolbar) R 24928 24928 24433 0 -1 4194304 135731 3095 0 0 4 54 29 1 21 0 1 0 272810613 902156288 135697 18446744073709551615 134512640 135242688 4294956608 18446744073709551615 134580750 0 0 4096 0 0 0 0 17 1 0 0
/proc/24947/statm: 220253 135697 53 178 0 220071 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 928576

Sending SIGTERM to process tree (bottom up)

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 24928 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=183972 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=42993
CPU time returned by wait4() is 0.226965
while last known CPU time is 1.09

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 1.14651
CPU time (s): 1.09
CPU user time (s): 0.51
CPU system time (s): 0.58
CPU usage (%): 95.071
Max. virtual memory (cumulated for all children) (KiB): 928576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.183972
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3648
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= 66
involuntary context switches= 29

runsolver used 0.004999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node33 on Fri Jan 19 22:02:47 UTC 2007


IDJOB= 276682
IDBENCH= 5944
IDSOLVER= 71
FILE ID= node33/276682-1169244167

PBS_JOBID= 3589324

Free space on /tmp= 66561 MiB

SOLVER NAME= Toolbar_MaxSat 2007-01-19
BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.65/rand-2-40-40-135-650-29_ext.xml
COMMAND LINE= /tmp/evaluation/276682-1169244167/solver.sh /tmp/evaluation/276682-1169244167/unknown
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node33/convwatcher-276682-1169244167 -o ROOT/results/node33/conversion-276682-1169244167 -C 600 -M 900 /tmp/evaluation/276682-1169244167/translate /tmp/evaluation/276682-1169244167/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-276682-1169244167 -o ROOT/results/node33/solver-276682-1169244167 -C 2400 -M 900  /tmp/evaluation/276682-1169244167/solver.sh /tmp/evaluation/276682-1169244167/unknown

META MD5SUM SOLVER= f843f34905a307bcc0c6a322bc802c9d
MD5SUM BENCH=  e90797268d71e6eb172828a0a7e4423c

RANDOM SEED= 806231685

TIME LIMIT= 2400 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		: 3000.281
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		: 3000.281
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:       1562440 kB
Buffers:         43416 kB
Cached:         334600 kB
SwapCached:        268 kB
Active:         193296 kB
Inactive:       231224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1562440 kB
SwapTotal:     4192956 kB
SwapFree:      4192224 kB
Dirty:            4996 kB
Writeback:           0 kB
Mapped:          66204 kB
Slab:            54300 kB
Committed_AS:  5331036 kB
PageTables:       1876 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 node33 on Fri Jan 19 22:02:49 UTC 2007