Trace number 225265

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 11.8782 11.9396

DiagnosticValue
CHECKS128732000
NODES303

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-3_ext.xml
MD5SUMb405be014f1ccce7d38c40ecbabc7829
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 benchmark2.5996
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

11.93	s UNSATISFIABLE
11.93	d CHECKS 1.28732e+08
11.93	d NODES 303
11.93

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/node76/watcher-225265-1168271542 -o ROOT/results/node76/solver-225265-1168271542 -C 1800 -M 900 /tmp/evaluation/225265-1168271542/VALCSP /tmp/evaluation/225265-1168271542/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: 0.72 0.94 1.06 3/74 26638
/proc/meminfo: memFree=1823600/2055888 swapFree=4095388/4096564
[pid=26636] ppid=26633 vsize=1604 CPUtime=0.01
/proc/26636/stat : 26636 (VALCSP) R 26633 26636 26547 0 -1 4194304 149 0 0 0 1 0 0 0 19 0 1 0 175551303 1642496 127 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5277484 0 0 4096 0 0 0 0 17 0 0 0
/proc/26636/statm: 401 127 62 8 0 72 0

[startup+0.105777 s]
/proc/loadavg: 0.72 0.94 1.06 3/74 26638
/proc/meminfo: memFree=1823600/2055888 swapFree=4095388/4096564
[pid=26636] ppid=26633 vsize=1604 CPUtime=0.09
/proc/26636/stat : 26636 (VALCSP) R 26633 26636 26547 0 -1 4194304 152 0 0 0 9 0 0 0 19 0 1 0 175551303 1642496 130 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279708 0 0 4096 0 0 0 0 17 1 0 0
/proc/26636/statm: 401 130 62 8 0 72 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1604

[startup+0.517857 s]
/proc/loadavg: 0.72 0.94 1.06 3/74 26638
/proc/meminfo: memFree=1823600/2055888 swapFree=4095388/4096564
[pid=26636] ppid=26633 vsize=2000 CPUtime=0.5
/proc/26636/stat : 26636 (VALCSP) R 26633 26636 26547 0 -1 4194304 256 0 0 0 50 0 0 0 25 0 1 0 175551303 2048000 234 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279662 0 0 4096 0 0 0 0 17 1 0 0
/proc/26636/statm: 500 234 62 8 0 171 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 2000

[startup+1.33802 s]
/proc/loadavg: 0.72 0.94 1.06 3/86 26668
/proc/meminfo: memFree=1743248/2055888 swapFree=4095388/4096564
[pid=26636] ppid=26633 vsize=2792 CPUtime=1.31
/proc/26636/stat : 26636 (VALCSP) R 26633 26636 26547 0 -1 4194304 443 0 0 0 131 0 0 0 25 0 1 0 175551303 2859008 421 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279708 0 0 4096 0 0 0 0 17 1 0 0
/proc/26636/statm: 698 421 62 8 0 369 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 2792

[startup+2.97433 s]
/proc/loadavg: 0.72 0.94 1.06 3/86 26668
/proc/meminfo: memFree=1729424/2055888 swapFree=4095388/4096564
[pid=26636] ppid=26633 vsize=4384 CPUtime=2.94
/proc/26636/stat : 26636 (VALCSP) R 26633 26636 26547 0 -1 4194304 841 0 0 0 294 0 0 0 25 0 1 0 175551303 4489216 819 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5279628 0 0 4096 0 0 0 0 17 1 0 0
/proc/26636/statm: 1096 819 62 8 0 767 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 4384

[startup+6.25498 s]
/proc/loadavg: 0.82 0.96 1.07 3/86 26668
/proc/meminfo: memFree=1710736/2055888 swapFree=4095388/4096564
[pid=26636] ppid=26633 vsize=7440 CPUtime=6.21
/proc/26636/stat : 26636 (VALCSP) R 26633 26636 26547 0 -1 4194304 1611 0 0 0 621 0 0 0 25 0 1 0 175551303 7618560 1589 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 5277484 0 0 4096 0 0 0 0 17 1 0 0
/proc/26636/statm: 1860 1589 62 8 0 1531 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 7440

Child status: 0
Real time (s): 11.9396
CPU time (s): 11.8782
CPU user time (s): 11.8532
CPU system time (s): 0.024996
CPU usage (%): 99.4854
Max. virtual memory (cumulated for all children) (KiB): 21444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.8532
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5127
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= 7
involuntary context switches= 171

runsolver used 0.020996 s user time and 0.025996 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Mon Jan  8 15:52:22 UTC 2007


IDJOB= 225265
IDBENCH= 5841
FILE ID= node76/225265-1168271542

PBS_JOBID= 3483211

Free space on /tmp= 66642 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-3_ext.xml
COMMAND LINE= /tmp/evaluation/225265-1168271542/VALCSP /tmp/evaluation/225265-1168271542/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-225265-1168271542 -o ROOT/results/node76/solver-225265-1168271542 -C 1800 -M 900  /tmp/evaluation/225265-1168271542/VALCSP /tmp/evaluation/225265-1168271542/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  b405be014f1ccce7d38c40ecbabc7829

RANDOM SEED= 306300278

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1823808 kB
Buffers:         50704 kB
Cached:         113904 kB
SwapCached:        428 kB
Active:         102216 kB
Inactive:        82588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1823808 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            6836 kB
Writeback:           0 kB
Mapped:          29444 kB
Slab:            33112 kB
Committed_AS:  6600792 kB
PageTables:       1720 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66636 MiB



End job on node76 on Mon Jan  8 15:52:34 UTC 2007