Trace number 223795

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 9.16661 9.30445

DiagnosticValue
CHECKS299614000
NODES52486

General information on the benchmark

Nametightness/tightness0.5/
rand-2-40-25-180-500-61_ext.xml
MD5SUM189074ce2eb910bea352f8b76cce4ad2
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.16661
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables40
Number of constraints180
Maximum constraint arity2
Maximum domain size25
Number of constraints which are defined in extension180
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

9.30	s UNSATISFIABLE
9.30	d CHECKS 2.99614e+08
9.30	d NODES 52486
9.30

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/node30/watcher-223795-1168266467 -o ROOT/results/node30/solver-223795-1168266467 -C 1800 -M 900 /tmp/evaluation/223795-1168266467/VALCSP /tmp/evaluation/223795-1168266467/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: 1.22 1.89 2.06 4/82 2028
/proc/meminfo: memFree=671816/2055920 swapFree=4191880/4192956
[pid=2027] ppid=2024 vsize=18540 CPUtime=0
/proc/2027/stat : 2027 (runsolver) D 2024 2027 1927 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 175040703 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 264907582759 0 0 4096 24578 18446744071563608240 0 0 17 1 0 0
/proc/2027/statm: 4635 279 244 17 0 2626 0

[startup+0.10608 s]
/proc/loadavg: 1.22 1.89 2.06 4/82 2028
/proc/meminfo: memFree=671816/2055920 swapFree=4191880/4192956
[pid=2027] ppid=2024 vsize=1732 CPUtime=0.04
/proc/2027/stat : 2027 (VALCSP) R 2024 2027 1927 0 -1 4194304 189 0 7 0 4 0 0 0 18 0 1 0 175040703 1773568 174 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/2027/statm: 433 174 62 8 0 105 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1732

[startup+0.514099 s]
/proc/loadavg: 1.22 1.89 2.06 4/82 2028
/proc/meminfo: memFree=671816/2055920 swapFree=4191880/4192956
[pid=2027] ppid=2024 vsize=3712 CPUtime=0.44
/proc/2027/stat : 2027 (VALCSP) R 2024 2027 1927 0 -1 4194304 676 0 7 0 44 0 0 0 22 0 1 0 175040703 3801088 661 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524683 0 0 4096 0 0 0 0 17 0 0 0
/proc/2027/statm: 928 661 65 8 0 600 0
Current children cumulated CPU time (s) 0.44
Current children cumulated vsize (KiB) 3712

[startup+1.33516 s]
/proc/loadavg: 1.22 1.89 2.06 3/88 2052
/proc/meminfo: memFree=653584/2055920 swapFree=4191880/4192956
[pid=2027] ppid=2024 vsize=3712 CPUtime=1.25
/proc/2027/stat : 2027 (VALCSP) R 2024 2027 1927 0 -1 4194304 676 0 7 0 113 12 0 0 25 0 1 0 175040703 3801088 661 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524645 0 0 4096 0 0 0 0 17 0 0 0
/proc/2027/statm: 928 661 65 8 0 600 0
Current children cumulated CPU time (s) 1.25
Current children cumulated vsize (KiB) 3712

[startup+2.97226 s]
/proc/loadavg: 1.22 1.89 2.06 4/97 2062
/proc/meminfo: memFree=627016/2055920 swapFree=4191880/4192956
[pid=2027] ppid=2024 vsize=3712 CPUtime=2.88
/proc/2027/stat : 2027 (VALCSP) R 2024 2027 1927 0 -1 4194304 676 0 7 0 275 13 0 0 25 0 1 0 175040703 3801088 661 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524781 0 0 4096 0 0 0 0 17 1 0 0
/proc/2027/statm: 928 661 65 8 0 600 0
Current children cumulated CPU time (s) 2.88
Current children cumulated vsize (KiB) 3712

[startup+6.25547 s]
/proc/loadavg: 1.36 1.91 2.07 3/98 2063
/proc/meminfo: memFree=572360/2055920 swapFree=4191880/4192956
[pid=2027] ppid=2024 vsize=3712 CPUtime=6.13
/proc/2027/stat : 2027 (VALCSP) R 2024 2027 1927 0 -1 4194304 676 0 7 0 600 13 0 0 25 0 1 0 175040703 3801088 661 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524529 0 0 4096 0 0 0 0 17 1 0 0
/proc/2027/statm: 928 661 65 8 0 600 0
Current children cumulated CPU time (s) 6.13
Current children cumulated vsize (KiB) 3712

Child status: 0
Real time (s): 9.30445
CPU time (s): 9.16661
CPU user time (s): 9.03263
CPU system time (s): 0.133979
CPU usage (%): 98.5185
Max. virtual memory (cumulated for all children) (KiB): 3712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.03263
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 705
page faults= 7
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 20
involuntary context switches= 692

runsolver used 0.012998 s user time and 0.031995 s system time

The end

Launcher Data (download as text)

Begin job on node30 on Mon Jan  8 14:27:47 UTC 2007


IDJOB= 223795
IDBENCH= 5679
FILE ID= node30/223795-1168266467

PBS_JOBID= 3482861

Free space on /tmp= 66494 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.5/rand-2-40-25-180-500-61_ext.xml
COMMAND LINE= /tmp/evaluation/223795-1168266467/VALCSP /tmp/evaluation/223795-1168266467/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-223795-1168266467 -o ROOT/results/node30/solver-223795-1168266467 -C 1800 -M 900  /tmp/evaluation/223795-1168266467/VALCSP /tmp/evaluation/223795-1168266467/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  189074ce2eb910bea352f8b76cce4ad2

RANDOM SEED= 250005538

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		: 3000.234
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		: 3000.234
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:        674536 kB
Buffers:          6276 kB
Cached:        1262472 kB
SwapCached:        268 kB
Active:         815932 kB
Inactive:       509260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        674536 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            2180 kB
Writeback:           0 kB
Mapped:          74220 kB
Slab:            41312 kB
Committed_AS:  3802356 kB
PageTables:       2116 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= 66492 MiB



End job on node30 on Mon Jan  8 14:27:57 UTC 2007