Trace number 202642

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 44.2383 44.5681

DiagnosticValue
CHECKS1501180000
NODES246778

General information on the benchmark

Namerandom/rand-2-40-19/
rand-2-40-19-443-230-3_ext.xml
MD5SUMda7a8729995b8c74ebc13bac43702b0f
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 benchmark44.2383
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables40
Number of constraints340
Maximum constraint arity2
Maximum domain size19
Number of constraints which are defined in extension340
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

44.56	s UNSATISFIABLE
44.56	d CHECKS 1.50118e+09
44.56	d NODES 246778
44.56

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/node44/watcher-202642-1168152982 -o ROOT/results/node44/solver-202642-1168152982 -C 1800 -M 900 /tmp/evaluation/202642-1168152982/VALCSP /tmp/evaluation/202642-1168152982/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: 1.91 1.76 1.37 5/74 2781
/proc/meminfo: memFree=1687672/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=1468 CPUtime=0
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 119 0 0 0 0 0 0 0 20 0 1 0 163697249 1503232 97 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 11719362 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 367 97 62 8 0 39 0

[startup+0.108173 s]
/proc/loadavg: 1.91 1.76 1.37 5/74 2781
/proc/meminfo: memFree=1687672/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=2788 CPUtime=0.1
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 433 0 0 0 10 0 0 0 20 0 1 0 163697249 2854912 411 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134536557 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 697 411 63 8 0 369 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2788

[startup+0.516212 s]
/proc/loadavg: 1.91 1.76 1.37 5/74 2781
/proc/meminfo: memFree=1687672/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=3316 CPUtime=0.5
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 578 0 0 0 50 0 0 0 24 0 1 0 163697249 3395584 556 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524683 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 829 556 65 8 0 501 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 3316

[startup+1.3373 s]
/proc/loadavg: 1.91 1.76 1.37 3/74 2781
/proc/meminfo: memFree=1685624/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=3316 CPUtime=1.32
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 578 0 0 0 132 0 0 0 25 0 1 0 163697249 3395584 556 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524781 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 829 556 65 8 0 501 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 3316

[startup+2.97646 s]
/proc/loadavg: 1.91 1.76 1.37 3/74 2781
/proc/meminfo: memFree=1685624/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=3316 CPUtime=2.95
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 578 0 0 0 295 0 0 0 25 0 1 0 163697249 3395584 556 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524708 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 829 556 65 8 0 501 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 3316

[startup+6.2568 s]
/proc/loadavg: 1.92 1.76 1.37 3/74 2781
/proc/meminfo: memFree=1685624/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=3316 CPUtime=6.2
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 578 0 0 0 620 0 0 0 25 0 1 0 163697249 3395584 556 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524727 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 829 556 65 8 0 501 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 3316

[startup+12.7185 s]
/proc/loadavg: 1.93 1.77 1.37 3/74 2781
/proc/meminfo: memFree=1685624/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=3316 CPUtime=12.61
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 578 0 0 0 1261 0 0 0 25 0 1 0 163697249 3395584 556 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 829 556 65 8 0 501 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 3316

[startup+25.5258 s]
/proc/loadavg: 1.94 1.78 1.38 3/74 2781
/proc/meminfo: memFree=1685624/2055920 swapFree=4191892/4192956
[pid=2780] ppid=2778 vsize=3316 CPUtime=25.33
/proc/2780/stat : 2780 (VALCSP) R 2778 2780 2217 0 -1 4194304 578 0 0 0 2533 0 0 0 25 0 1 0 163697249 3395584 556 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134520930 0 0 4096 0 0 0 0 17 1 0 0
/proc/2780/statm: 829 556 65 8 0 501 0
Current children cumulated CPU time (s) 25.33
Current children cumulated vsize (KiB) 3316

Child status: 0
Real time (s): 44.5681
CPU time (s): 44.2383
CPU user time (s): 44.2303
CPU system time (s): 0.007998
CPU usage (%): 99.2599
Max. virtual memory (cumulated for all children) (KiB): 3316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 44.2303
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 607
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= 960

runsolver used 0.032994 s user time and 0.132979 s system time

The end

Launcher Data (download as text)

Begin job on node44 on Sun Jan  7 06:56:22 UTC 2007


IDJOB= 202642
IDBENCH= 3872
FILE ID= node44/202642-1168152982

PBS_JOBID= 3478485

Free space on /tmp= 66544 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-40-19/rand-2-40-19-443-230-3_ext.xml
COMMAND LINE= /tmp/evaluation/202642-1168152982/VALCSP /tmp/evaluation/202642-1168152982/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-202642-1168152982 -o ROOT/results/node44/solver-202642-1168152982 -C 1800 -M 900  /tmp/evaluation/202642-1168152982/VALCSP /tmp/evaluation/202642-1168152982/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  da7a8729995b8c74ebc13bac43702b0f

RANDOM SEED= 225156148

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		: 3000.213
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		: 3000.213
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:       1688088 kB
Buffers:         26096 kB
Cached:         245576 kB
SwapCached:        396 kB
Active:         144348 kB
Inactive:       159300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1688088 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:             264 kB
Writeback:           0 kB
Mapped:          42052 kB
Slab:            49640 kB
Committed_AS:  3317752 kB
PageTables:       1748 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= 66544 MiB



End job on node44 on Sun Jan  7 06:57:07 UTC 2007