Trace number 199792

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 15.4467 15.5854

DiagnosticValue
CHECKS499759000
NODES124701

General information on the benchmark

Namerandom/rand-2-23/
rand-23-23-253-131-54021_ext.xml
MD5SUMdb950ae5bc51adb94baca31b2655c141
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 benchmark4.64529
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables23
Number of constraints253
Maximum constraint arity2
Maximum domain size23
Number of constraints which are defined in extension253
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

15.58	s SATISFIABLE
15.58	v 15 12 17 17 4 17 15 9 4 16 13 1 0 19 0 22 18 0 3 1 5 3 3 
15.58	d CHECKS 4.99759e+08
15.58	d NODES 124701
15.58

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/node34/watcher-199792-1168136481 -o ROOT/results/node34/solver-199792-1168136481 -C 1800 -M 900 /tmp/evaluation/199792-1168136481/VALCSP /tmp/evaluation/199792-1168136481/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: 0.91 0.98 1.02 4/68 25929
/proc/meminfo: memFree=1921664/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=1468 CPUtime=0
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 109 0 0 0 0 0 0 0 18 0 1 0 162041926 1503232 87 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8180921 0 0 4096 0 0 0 0 17 1 0 0
/proc/25928/statm: 367 87 62 8 0 39 0

[startup+0.102921 s]
/proc/loadavg: 0.91 0.98 1.02 4/68 25929
/proc/meminfo: memFree=1921664/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=2524 CPUtime=0.09
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 379 0 0 0 9 0 0 0 18 0 1 0 162041926 2584576 357 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8156795 0 0 4096 0 0 0 0 17 1 0 0
/proc/25928/statm: 631 357 63 8 0 303 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2524

[startup+0.514953 s]
/proc/loadavg: 0.91 0.98 1.02 4/68 25929
/proc/meminfo: memFree=1921664/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=3184 CPUtime=0.5
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 556 0 0 0 50 0 0 0 22 0 1 0 162041926 3260416 534 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524708 0 0 4096 0 0 0 0 17 1 0 0
/proc/25928/statm: 796 534 65 8 0 468 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 3184

[startup+1.33502 s]
/proc/loadavg: 0.91 0.98 1.02 4/81 25979
/proc/meminfo: memFree=1848216/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=3184 CPUtime=1.32
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 556 0 0 0 132 0 0 0 25 0 1 0 162041926 3260416 534 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134520925 0 0 4096 0 0 0 0 17 1 0 0
/proc/25928/statm: 796 534 65 8 0 468 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 3184

[startup+2.97115 s]
/proc/loadavg: 0.91 0.98 1.02 3/74 25980
/proc/meminfo: memFree=1914832/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=3184 CPUtime=2.95
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 556 0 0 0 295 0 0 0 25 0 1 0 162041926 3260416 534 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524755 0 0 4096 0 0 0 0 17 0 0 0
/proc/25928/statm: 796 534 65 8 0 468 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 3184

[startup+6.24841 s]
/proc/loadavg: 1.00 1.00 1.02 3/74 25980
/proc/meminfo: memFree=1909584/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=3184 CPUtime=6.19
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 556 0 0 0 619 0 0 0 25 0 1 0 162041926 3260416 534 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524602 0 0 4096 0 0 0 0 17 0 0 0
/proc/25928/statm: 796 534 65 8 0 468 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 3184

[startup+12.7069 s]
/proc/loadavg: 1.08 1.01 1.03 3/74 25980
/proc/meminfo: memFree=1905168/2055920 swapFree=4192812/4192956
[pid=25928] ppid=25923 vsize=3184 CPUtime=12.58
/proc/25928/stat : 25928 (VALCSP) R 25923 25928 25858 0 -1 4194304 556 0 0 0 1258 0 0 0 25 0 1 0 162041926 3260416 534 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524683 0 0 4096 0 0 0 0 17 0 0 0
/proc/25928/statm: 796 534 65 8 0 468 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 3184

Child status: 0
Real time (s): 15.5854
CPU time (s): 15.4467
CPU user time (s): 15.4407
CPU system time (s): 0.005999
CPU usage (%): 99.11
Max. virtual memory (cumulated for all children) (KiB): 3184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.4407
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 586
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= 332

runsolver used 0.019996 s user time and 0.040993 s system time

The end

Launcher Data (download as text)

Begin job on node34 on Sun Jan  7 02:21:22 UTC 2007


IDJOB= 199792
IDBENCH= 3636
FILE ID= node34/199792-1168136481

PBS_JOBID= 3478043

Free space on /tmp= 66535 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-23/rand-23-23-253-131-54021_ext.xml
COMMAND LINE= /tmp/evaluation/199792-1168136481/VALCSP /tmp/evaluation/199792-1168136481/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-199792-1168136481 -o ROOT/results/node34/solver-199792-1168136481 -C 1800 -M 900  /tmp/evaluation/199792-1168136481/VALCSP /tmp/evaluation/199792-1168136481/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  db950ae5bc51adb94baca31b2655c141

RANDOM SEED= 175742853

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		: 3000.227
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		: 3000.227
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:       1923480 kB
Buffers:          9208 kB
Cached:          43492 kB
SwapCached:          0 kB
Active:          50060 kB
Inactive:        22752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1923480 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2624 kB
Writeback:           0 kB
Mapped:          30368 kB
Slab:            45312 kB
Committed_AS:  2617780 kB
PageTables:       1632 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= 66533 MiB



End job on node34 on Sun Jan  7 02:21:37 UTC 2007