Trace number 218834

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
Tramontane 2006-12-04UNSAT 77.1123 77.4766

General information on the benchmark

NamechessboardColoration/
cc-20-20-2.xml
MD5SUM4bfbbbec534ab5354946c7d304aa6b6b
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.2555
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables400
Number of constraints36100
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36100
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables.............    0
0.10	c 	predicates............    0
0.10	c 	constraints........... 3.46
3.50	c Allocating memory
3.50	c 
3.50	c time limit = -1
3.50	c heuristic = dom/wdeg
3.50	c restart policy = Geometric increment
3.50	c restart base = 266
3.50	c restart factor = 1.33
3.50	c 
3.50	c Solving
3.50	c
77.34	s UNSATISFIABLE
77.34	d        UNSAT     12256 BTS        73 s

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-218834-1168253359 -o ROOT/results/node76/solver-218834-1168253359 -C 1800 -M 900 /tmp/evaluation/218834-1168253359/tramontane/bin/solver /tmp/evaluation/218834-1168253359/unknown.xml -res geom -f 3 -v 1 

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: 1.62 1.16 1.18 4/79 15447
/proc/meminfo: memFree=1758792/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=0 CPUtime=0
/proc/15446/stat : 15446 (runsolver) R 15444 15446 14712 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 173733063 0 0 18446744073709551615 0 0 0 18446744073709551615 206843737111 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15446/statm: 0 0 0 0 0 0 0

[startup+0.107456 s]
/proc/loadavg: 1.62 1.16 1.18 4/79 15447
/proc/meminfo: memFree=1758792/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=7704 CPUtime=0.09
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 987 0 0 0 9 0 0 0 20 0 1 0 173733063 7888896 956 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 4159425103 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 1926 956 702 92 0 269 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7704

[startup+0.515535 s]
/proc/loadavg: 1.62 1.16 1.18 4/79 15447
/proc/meminfo: memFree=1758792/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=9916 CPUtime=0.5
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 1565 0 0 0 50 0 0 0 25 0 1 0 173733063 10153984 1534 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 4159433771 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 2479 1534 702 92 0 822 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9916

[startup+1.3367 s]
/proc/loadavg: 1.65 1.17 1.18 3/79 15447
/proc/meminfo: memFree=1751880/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=14668 CPUtime=1.32
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 2728 0 0 0 131 1 0 0 25 0 1 0 173733063 15020032 2697 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134572476 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 3667 2697 702 92 0 2010 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 14668

[startup+2.97501 s]
/proc/loadavg: 1.65 1.17 1.18 3/79 15447
/proc/meminfo: memFree=1745480/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=23716 CPUtime=2.95
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 5012 0 0 0 292 3 0 0 25 0 1 0 173733063 24285184 4981 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 4156326543 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 5929 4981 702 92 0 4272 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 23716

[startup+6.25567 s]
/proc/loadavg: 1.65 1.17 1.18 3/79 15447
/proc/meminfo: memFree=1730696/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=34548 CPUtime=6.21
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 7706 0 0 0 617 4 0 0 25 0 1 0 173733063 35377152 7642 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134727398 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 8637 7642 715 92 0 6980 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 34548

[startup+12.7199 s]
/proc/loadavg: 1.78 1.21 1.19 3/79 15447
/proc/meminfo: memFree=1730912/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=34548 CPUtime=12.63
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 7706 0 0 0 1259 4 0 0 25 0 1 0 173733063 35377152 7642 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134727398 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 8637 7642 715 92 0 6980 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 34548

[startup+25.5424 s]
/proc/loadavg: 1.81 1.24 1.20 3/79 15447
/proc/meminfo: memFree=1731040/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=34548 CPUtime=25.4
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 7706 0 0 0 2536 4 0 0 25 0 1 0 173733063 35377152 7642 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134727398 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 8637 7642 715 92 0 6980 0
Current children cumulated CPU time (s) 25.4
Current children cumulated vsize (KiB) 34548

[startup+51.1824 s]
/proc/loadavg: 1.87 1.30 1.22 3/79 15447
/proc/meminfo: memFree=1731168/2055888 swapFree=4095388/4096564
[pid=15446] ppid=15444 vsize=34548 CPUtime=50.93
/proc/15446/stat : 15446 (solver) R 15444 15446 14712 0 -1 4194304 7706 0 0 0 5089 4 0 0 25 0 1 0 173733063 35377152 7642 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134727403 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 8637 7642 715 92 0 6980 0
Current children cumulated CPU time (s) 50.93
Current children cumulated vsize (KiB) 34548

Child status: 0
Real time (s): 77.4766
CPU time (s): 77.1123
CPU user time (s): 77.0573
CPU system time (s): 0.054991
CPU usage (%): 99.5297
Max. virtual memory (cumulated for all children) (KiB): 34548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 77.0573
system time used= 0.054991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7715
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= 12
involuntary context switches= 958

runsolver used 0.076988 s user time and 0.204968 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Mon Jan  8 10:49:20 UTC 2007


IDJOB= 218834
IDBENCH= 5259
FILE ID= node76/218834-1168253359

PBS_JOBID= 3482022

Free space on /tmp= 66627 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-20-20-2.xml
COMMAND LINE= /tmp/evaluation/218834-1168253359/tramontane/bin/solver /tmp/evaluation/218834-1168253359/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-218834-1168253359 -o ROOT/results/node76/solver-218834-1168253359 -C 1800 -M 900  /tmp/evaluation/218834-1168253359/tramontane/bin/solver /tmp/evaluation/218834-1168253359/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  4bfbbbec534ab5354946c7d304aa6b6b

RANDOM SEED= 865922312

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:       1759272 kB
Buffers:         36652 kB
Cached:         100144 kB
SwapCached:        428 kB
Active:         189652 kB
Inactive:        59492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1759272 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:           10720 kB
Writeback:           0 kB
Mapped:         122460 kB
Slab:            32872 kB
Committed_AS:  6599852 kB
PageTables:       2044 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= 66627 MiB



End job on node76 on Mon Jan  8 10:50:37 UTC 2007