Trace number 234538

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 3.0UNSAT 5.98209 6.0167

DiagnosticValue
CHECKS793147000
NODES322

General information on the benchmark

Nametaillard/
os-taillard-5/os-taillard-5-95-6.xml
MD5SUM1fe56784646537c7e125bf7c53b21105
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 benchmark0.024996
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size287
Number of constraints which are defined in extension0
Number of constraints which are defined in intension100
Global constraints used (with number of constraints)

Solver Data (download as text)

6.01	s UNSATISFIABLE
6.01	d CHECKS 7.93147e+08
6.01	d NODES 322
6.01

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node51/watcher-234538-1168332606 -o ROOT/results/node51/solver-234538-1168332606 -C 1800 -M 900 /tmp/evaluation/234538-1168332606/VALCSP /tmp/evaluation/234538-1168332606/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: 1.26 1.50 1.71 5/81 11200
/proc/meminfo: memFree=1729480/2055920 swapFree=4192812/4192956
[pid=11199] ppid=11197 vsize=18540 CPUtime=0
/proc/11199/stat : 11199 (runsolver) R 11197 11199 10316 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 181659170 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 235371293991 0 0 4096 24578 0 0 0 17 1 0 0
/proc/11199/statm: 4635 279 244 17 0 2626 0

[startup+0.102857 s]
/proc/loadavg: 1.26 1.50 1.71 5/81 11200
/proc/meminfo: memFree=1729480/2055920 swapFree=4192812/4192956
[pid=11199] ppid=11197 vsize=3316 CPUtime=0.09
/proc/11199/stat : 11199 (VALCSP) R 11197 11199 10316 0 -1 4194304 569 0 0 0 9 0 0 0 18 0 1 0 181659170 3395584 547 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531029 0 0 4096 0 0 0 0 17 0 0 0
/proc/11199/statm: 829 547 64 8 0 501 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3316

[startup+0.510921 s]
/proc/loadavg: 1.26 1.50 1.71 5/81 11200
/proc/meminfo: memFree=1729480/2055920 swapFree=4192812/4192956
[pid=11199] ppid=11197 vsize=9916 CPUtime=0.49
/proc/11199/stat : 11199 (VALCSP) R 11197 11199 10316 0 -1 4194304 2232 0 0 0 48 1 0 0 22 0 1 0 181659170 10153984 2210 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 0 0 0
/proc/11199/statm: 2479 2210 64 8 0 2151 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 9916

[startup+1.33206 s]
/proc/loadavg: 1.26 1.50 1.71 3/81 11200
/proc/meminfo: memFree=1705096/2055920 swapFree=4192812/4192956
[pid=11199] ppid=11197 vsize=23248 CPUtime=1.31
/proc/11199/stat : 11199 (VALCSP) R 11197 11199 10316 0 -1 4194304 5571 0 0 0 128 3 0 0 25 0 1 0 181659170 23805952 5549 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/11199/statm: 5812 5549 64 8 0 5484 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 23248

[startup+2.96935 s]
/proc/loadavg: 1.26 1.50 1.71 3/81 11200
/proc/meminfo: memFree=1695944/2055920 swapFree=4192812/4192956
[pid=11199] ppid=11197 vsize=23248 CPUtime=2.94
/proc/11199/stat : 11199 (VALCSP) R 11197 11199 10316 0 -1 4194304 5575 0 0 0 291 3 0 0 25 0 1 0 181659170 23805952 5553 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 0 0 0
/proc/11199/statm: 5812 5553 66 8 0 5484 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 23248

Child status: 0
Real time (s): 6.0167
CPU time (s): 5.98209
CPU user time (s): 5.9421
CPU system time (s): 0.039993
CPU usage (%): 99.4248
Max. virtual memory (cumulated for all children) (KiB): 23248

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.9421
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5604
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= 8
involuntary context switches= 90

runsolver used 0.010998 s user time and 0.022996 s system time

The end

Launcher Data (download as text)

Begin job on node51 on Tue Jan  9 08:50:06 UTC 2007


IDJOB= 234538
IDBENCH= 6694
FILE ID= node51/234538-1168332606

PBS_JOBID= 3503317

Free space on /tmp= 66561 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-5/os-taillard-5-95-6.xml
COMMAND LINE= /tmp/evaluation/234538-1168332606/VALCSP /tmp/evaluation/234538-1168332606/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-234538-1168332606 -o ROOT/results/node51/solver-234538-1168332606 -C 1800 -M 900  /tmp/evaluation/234538-1168332606/VALCSP /tmp/evaluation/234538-1168332606/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  1fe56784646537c7e125bf7c53b21105

RANDOM SEED= 423073160

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		: 3000.277
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		: 3000.277
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:       1730152 kB
Buffers:         27728 kB
Cached:         143088 kB
SwapCached:          0 kB
Active:         176576 kB
Inactive:        91992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3500 kB
Writeback:           0 kB
Mapped:         116792 kB
Slab:            42372 kB
Committed_AS:  4877940 kB
PageTables:       2032 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 node51 on Tue Jan  9 08:50:12 UTC 2007