Trace number 204928

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 1.75273 1.76403

DiagnosticValue
CHECKS57260500
NODES16553

General information on the benchmark

Namerandom/rand-2-30-15/
rand-2-30-15-306-230-33_ext.xml
MD5SUM60fa814020e0f9d4075bb3b09929f8a0
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 benchmark1.75273
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables30
Number of constraints229
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension229
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

1.76	s UNSATISFIABLE
1.76	d CHECKS 5.72605e+07
1.76	d NODES 16553
1.76

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/node75/watcher-204928-1168167020 -o ROOT/results/node75/solver-204928-1168167020 -C 1800 -M 900 /tmp/evaluation/204928-1168167020/VALCSP /tmp/evaluation/204928-1168167020/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: 1.41 1.88 1.82 5/81 22026
/proc/meminfo: memFree=1465176/2055920 swapFree=4184496/4192956
[pid=22025] ppid=22023 vsize=1468 CPUtime=0
/proc/22025/stat : 22025 (VALCSP) R 22023 22025 21666 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 165102117 1503232 97 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/22025/statm: 367 97 62 8 0 39 0

[startup+0.103452 s]
/proc/loadavg: 1.41 1.88 1.82 5/81 22026
/proc/meminfo: memFree=1465176/2055920 swapFree=4184496/4192956
[pid=22025] ppid=22023 vsize=2260 CPUtime=0.09
/proc/22025/stat : 22025 (VALCSP) R 22023 22025 21666 0 -1 4194304 324 0 0 0 9 0 0 0 18 0 1 0 165102117 2314240 302 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524739 0 0 4096 0 0 0 0 17 0 0 0
/proc/22025/statm: 565 302 65 8 0 237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2260

[startup+0.511504 s]
/proc/loadavg: 1.41 1.88 1.82 5/81 22026
/proc/meminfo: memFree=1465176/2055920 swapFree=4184496/4192956
[pid=22025] ppid=22023 vsize=2260 CPUtime=0.5
/proc/22025/stat : 22025 (VALCSP) R 22023 22025 21666 0 -1 4194304 324 0 0 0 50 0 0 0 22 0 1 0 165102117 2314240 302 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 0 0 0
/proc/22025/statm: 565 302 65 8 0 237 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 2260

[startup+1.3326 s]
/proc/loadavg: 1.46 1.88 1.82 3/81 22026
/proc/meminfo: memFree=1463192/2055920 swapFree=4184496/4192956
[pid=22025] ppid=22023 vsize=2260 CPUtime=1.31
/proc/22025/stat : 22025 (VALCSP) R 22023 22025 21666 0 -1 4194304 324 0 0 0 131 0 0 0 25 0 1 0 165102117 2314240 302 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134524776 0 0 4096 0 0 0 0 17 0 0 0
/proc/22025/statm: 565 302 65 8 0 237 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 2260

Child status: 0
Real time (s): 1.76403
CPU time (s): 1.75273
CPU user time (s): 1.74873
CPU system time (s): 0.003999
CPU usage (%): 99.3596
Max. virtual memory (cumulated for all children) (KiB): 2260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.74873
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 353
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= 23

runsolver used 0.003999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node75 on Sun Jan  7 10:50:22 UTC 2007


IDJOB= 204928
IDBENCH= 4089
FILE ID= node75/204928-1168167020

PBS_JOBID= 3478696

Free space on /tmp= 66556 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-2-30-15/rand-2-30-15-306-230-33_ext.xml
COMMAND LINE= /tmp/evaluation/204928-1168167020/VALCSP /tmp/evaluation/204928-1168167020/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-204928-1168167020 -o ROOT/results/node75/solver-204928-1168167020 -C 1800 -M 900  /tmp/evaluation/204928-1168167020/VALCSP /tmp/evaluation/204928-1168167020/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  60fa814020e0f9d4075bb3b09929f8a0

RANDOM SEED= 364285825

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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1465528 kB
Buffers:         43508 kB
Cached:         103344 kB
SwapCached:       2680 kB
Active:         449648 kB
Inactive:        84168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1465528 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:             268 kB
Writeback:           0 kB
Mapped:         401984 kB
Slab:            40932 kB
Committed_AS:  4258572 kB
PageTables:       2628 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= 66556 MiB



End job on node75 on Sun Jan  7 10:50:29 UTC 2007