Trace number 239863

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 3.0SAT 2.16567 2.18771

DiagnosticValue
CHECKS27708200
NODES78652

General information on the benchmark

Nameqcp-qwh/QWH-20/
qwh-20-166-7_ext.xml
MD5SUM8b93529d4fb4135ef20d21fb28b0c96b
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.492924
SatisfiableYES
(Un)Satisfiability was proved
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension7600
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

2.18	s SATISFIABLE
2.18	v 0 4 17 6 13 15 16 9 18 10 5 7 3 1 8 11 2 12 19 14 18 14 7 12 0 10 5 11 13 8 1 6 9 16 2 19 17 4 3 15 3 7 6 13 12 5 14 19 10 18 11 1 8 4 17 16 0 15 2 9 16 0 5 4 18 11 7 12 1 13 17 14 19 10 9 2 8 6 15 3 4 10 14 7 19 2 8 18 17 6 13 3 0 15 11 5 9 1 16 12 2 11 4 16 1 7 19 5 15 14 3 18 6 17 0 8 12 9 13 10 9 6 12 17 11 4 13 16 14 3 10 8 5 0 7 15 18 19 1 2 7 2 11 1 16 12 0 8 5 15 6 9 10 19 4 14 13 3 17 18 19 3 0 5 7 8 15 14 11 12 4 10 1 2 13 9 16 17 18 6 5 17 1 2 6 14 9 3 19 16 15 13 12 11 10 4 7 18 8 0 13 18 3 14 9 0 2 4 12 19 16 17 11 7 15 1 5 10 6 8 8 13 18 11 2 19 1 0 3 4 12 15 7 9 6 17 14 5 10 16 10 19 16 15 5 17 18 7 0 1 9 2 13 12 3 6 4 8 14 11 1 9 15 8 3 16 4 13 6 7 2 0 17 18 19 10 11 14 12 5 11 8 10 19 15 13 12 6 7 2 18 16 4 14 5 3 1 0 9 17 17 5 19 10 8 9 6 1 2 0 14 11 18 3 12 13 15 16 4 7 14 1 13 3 17 6 10 15 16 9 7 5 2 8 18 12 19 11 0 4 12 15 2 9 14 18 17 10 4 11 8 19 16 6 1 0 3 7 5 13 15 12 9 0 10 3 11 17 8 5 19 4 14 13 16 18 6 2 7 1 6 16 8 18 4 1 3 2 9 17 0 12 15 5 14 7 10 13 11 19 
2.18	d CHECKS 2.77082e+07
2.18	d NODES 78652
2.18

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node2/watcher-239863-1168368081 -o ROOT/results/node2/solver-239863-1168368081 -C 1800 -M 900 /tmp/evaluation/239863-1168368081/VALCSP /tmp/evaluation/239863-1168368081/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: 1.85 1.97 1.99 5/88 25627
/proc/meminfo: memFree=1778888/2055920 swapFree=4180528/4192956
[pid=25626] ppid=25624 vsize=1996 CPUtime=0
/proc/25626/stat : 25626 (VALCSP) R 25624 25626 25571 0 -1 4194304 231 0 0 0 0 0 0 0 21 0 1 0 185203773 2043904 209 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134534827 0 0 4096 0 0 0 0 17 1 0 0
/proc/25626/statm: 499 209 62 8 0 171 0

[startup+0.105161 s]
/proc/loadavg: 1.85 1.97 1.99 5/88 25627
/proc/meminfo: memFree=1778888/2055920 swapFree=4180528/4192956
[pid=25626] ppid=25624 vsize=7248 CPUtime=0.09
/proc/25626/stat : 25626 (VALCSP) R 25624 25626 25571 0 -1 4194304 1526 0 0 0 9 0 0 0 21 0 1 0 185203773 7421952 1504 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134536574 0 0 4096 0 0 0 0 17 1 0 0
/proc/25626/statm: 1812 1504 64 8 0 1484 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7248

[startup+0.513236 s]
/proc/loadavg: 1.85 1.97 1.99 5/88 25627
/proc/meminfo: memFree=1778888/2055920 swapFree=4180528/4192956
[pid=25626] ppid=25624 vsize=12072 CPUtime=0.49
/proc/25626/stat : 25626 (VALCSP) R 25624 25626 25571 0 -1 4194304 2759 0 0 0 48 1 0 0 25 0 1 0 185203773 12361728 2737 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524697 0 0 4096 0 0 0 0 17 1 0 0
/proc/25626/statm: 3018 2737 66 8 0 2690 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 12072

[startup+1.33439 s]
/proc/loadavg: 1.85 1.97 1.99 3/88 25627
/proc/meminfo: memFree=1768136/2055920 swapFree=4180528/4192956
[pid=25626] ppid=25624 vsize=12072 CPUtime=1.31
/proc/25626/stat : 25626 (VALCSP) R 25624 25626 25571 0 -1 4194304 2759 0 0 0 130 1 0 0 25 0 1 0 185203773 12361728 2737 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134517193 0 0 4096 0 0 0 0 17 1 0 0
/proc/25626/statm: 3018 2737 66 8 0 2690 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12072

Child status: 0
Real time (s): 2.18771
CPU time (s): 2.16567
CPU user time (s): 2.14967
CPU system time (s): 0.015997
CPU usage (%): 98.9928
Max. virtual memory (cumulated for all children) (KiB): 12072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.14967
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2788
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= 47

runsolver used 0.002999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Jan  9 18:41:21 UTC 2007


IDJOB= 239863
IDBENCH= 7087
FILE ID= node2/239863-1168368081

PBS_JOBID= 3503813

Free space on /tmp= 66532 MiB

BENCH NAME= HOME/pub/bench/CPAI06/qcp-qwh/QWH-20/qwh-20-166-7_ext.xml
COMMAND LINE= /tmp/evaluation/239863-1168368081/VALCSP /tmp/evaluation/239863-1168368081/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-239863-1168368081 -o ROOT/results/node2/solver-239863-1168368081 -C 1800 -M 900  /tmp/evaluation/239863-1168368081/VALCSP /tmp/evaluation/239863-1168368081/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  8b93529d4fb4135ef20d21fb28b0c96b

RANDOM SEED= 222725114

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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1779368 kB
Buffers:         32560 kB
Cached:         126660 kB
SwapCached:        376 kB
Active:         141108 kB
Inactive:        84020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1779368 kB
SwapTotal:     4192956 kB
SwapFree:      4180528 kB
Dirty:             808 kB
Writeback:           0 kB
Mapped:          78328 kB
Slab:            36120 kB
Committed_AS:  5092960 kB
PageTables:       2396 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= 66532 MiB



End job on node2 on Tue Jan  9 18:41:24 UTC 2007