Trace number 209913

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
CSPtoSAT+minisat 0.3UNSAT 19.1471 19.3282

General information on the benchmark

NameschurrLemma/
lemma-12-9-mod.xml
MD5SUM3d49d2f245dda30a731f7833344c1bf4
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 benchmark0.546916
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables12
Number of constraints30
Maximum constraint arity3
Maximum domain size9
Number of constraints which are defined in extension0
Number of constraints which are defined in intension30
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c This is CSPtoSAT+minisat version 0.3
0.10	c (c) 2006 roussel@cril.univ-artois.fr
0.10	
0.10	c This solver internally uses a modified version of MiniSat2 version 061112
0.10	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.10	
0.10	c parsing...
0.10	c ...done
0.10	c #SATvar=302 #SATclauses=564 #CSPpredicates=30
19.32	c SAT problem is solved
19.32	restarts              : 21
19.32	conflicts             : 813544         (42514 /sec)
19.32	decisions             : 933978         (1.35 % random) (48807 /sec)
19.32	propagations          : 35887188       (1875367 /sec)
19.32	conflict literals     : 8920291        (47.63 % deleted)
19.32	Memory used           : 14.99 MB
19.32	CPU time              : 19.1361 s
19.32	
19.32	s UNSATISFIABLE

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-209913-1168062482 -o ROOT/results/node76/solver-209913-1168062482 -C 1800 -M 900 /tmp/evaluation/209913-1168062482/CSPtoSAT+minisat /tmp/evaluation/209913-1168062482/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: 1.92 1.97 1.80 2/78 28410
/proc/meminfo: memFree=1591792/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=500 CPUtime=0
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 51 0 0 0 0 0 0 0 21 0 1 0 154645324 512000 37 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 4817844 0 2147483391 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 125 37 30 52 0 19 0

[startup+0.102794 s]
/proc/loadavg: 1.92 1.97 1.80 2/78 28410
/proc/meminfo: memFree=1591792/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=6924 CPUtime=0.09
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 877 0 0 0 9 0 0 0 20 0 1 0 154645324 7090176 837 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671360 0 0 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 1731 837 718 52 0 98 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6924

[startup+0.51087 s]
/proc/loadavg: 1.92 1.97 1.80 2/78 28410
/proc/meminfo: memFree=1591792/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=7316 CPUtime=0.5
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 977 0 0 0 50 0 0 0 25 0 1 0 154645324 7491584 937 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134674542 0 0 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 1829 937 718 52 0 196 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7316

[startup+1.33103 s]
/proc/loadavg: 1.92 1.97 1.80 3/78 28410
/proc/meminfo: memFree=1590320/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=7976 CPUtime=1.31
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 1135 0 0 0 131 0 0 0 25 0 1 0 154645324 8167424 1095 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134562843 0 0 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 1994 1095 718 52 0 361 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 7976

[startup+2.96835 s]
/proc/loadavg: 1.92 1.97 1.80 3/78 28410
/proc/meminfo: memFree=1589488/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=9028 CPUtime=2.93
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 1405 0 0 0 293 0 0 0 25 0 1 0 154645324 9244672 1365 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671223 0 0 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 2257 1365 718 52 0 624 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 9028

[startup+6.24899 s]
/proc/loadavg: 1.93 1.97 1.80 3/78 28410
/proc/meminfo: memFree=1587568/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=10736 CPUtime=6.19
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 1841 0 0 0 619 0 0 0 25 0 1 0 154645324 10993664 1801 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134665598 0 0 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 2684 1801 718 52 0 1051 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 10736

[startup+12.7063 s]
/proc/loadavg: 1.93 1.97 1.80 3/78 28410
/proc/meminfo: memFree=1584880/2055888 swapFree=4096420/4096564
[pid=28409] ppid=28407 vsize=13496 CPUtime=12.58
/proc/28409/stat : 28409 (CSPtoSAT+minisa) R 28407 28409 28146 0 -1 4194304 2500 0 0 0 1258 0 0 0 25 0 1 0 154645324 13819904 2460 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134671457 0 0 4096 0 0 0 0 17 0 0 0
/proc/28409/statm: 3374 2460 718 52 0 1741 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 13496

Child status: 0
Real time (s): 19.3282
CPU time (s): 19.1471
CPU user time (s): 19.1371
CPU system time (s): 0.009998
CPU usage (%): 99.0629
Max. virtual memory (cumulated for all children) (KiB): 15344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.1371
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2989
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= 440

runsolver used 0.028995 s user time and 0.046992 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Sat Jan  6 05:48:02 UTC 2007


IDJOB= 209913
IDBENCH= 4579
FILE ID= node76/209913-1168062482

PBS_JOBID= 3475568

Free space on /tmp= 66640 MiB

BENCH NAME= HOME/pub/bench/CPAI06/schurrLemma/lemma-12-9-mod.xml
COMMAND LINE= /tmp/evaluation/209913-1168062482/CSPtoSAT+minisat /tmp/evaluation/209913-1168062482/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-209913-1168062482 -o ROOT/results/node76/solver-209913-1168062482 -C 1800 -M 900  /tmp/evaluation/209913-1168062482/CSPtoSAT+minisat /tmp/evaluation/209913-1168062482/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  3d49d2f245dda30a731f7833344c1bf4

RANDOM SEED= 248101654

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:       1592336 kB
Buffers:         23156 kB
Cached:         263668 kB
SwapCached:          0 kB
Active:         136944 kB
Inactive:       264188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1592336 kB
SwapTotal:     4096564 kB
SwapFree:      4096420 kB
Dirty:            1520 kB
Writeback:           0 kB
Mapped:         128096 kB
Slab:            48084 kB
Committed_AS:  5834436 kB
PageTables:       1924 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= 66640 MiB



End job on node76 on Sat Jan  6 05:48:22 UTC 2007