Trace number 2091864

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
bpsolver 09SAT 0.729888 0.736605

General information on the benchmark

Namecsp/tightness0.1/
normalized-rand-2-40-8-753-100-32_ext.xml
MD5SUMe5d0981df2edfda0c1fcfa705e7f7e16
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 benchmark0.729888
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints751
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension751
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2091864-1247396840)
0.19/0.26	c Converted in 92 ms
0.19/0.29	c solving(HOME/instance-2091864-1247396840,1800000)
0.19/0.29	c solving(HOME/instance-2091864-1247396840,1800000)
0.69/0.73	c (ffc_inout)
0.69/0.73	s SATISFIABLE
0.69/0.73	v 3 1 2 5 3 7 4 5 5 2 4 1 4 7 1 1 0 3 2 0 4 3 6 2 2 7 4 0 2 1 4 0 6 6 1 4 0 4 2 5 
0.69/0.73	
0.69/0.73	c Time=465 ms Backtracks=1179
0.69/0.73

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2091864-1247396840/watcher-2091864-1247396840 -o /tmp/evaluation-result-2091864-1247396840/solver-2091864-1247396840 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2091864-1247396840 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 1.96 2.07 2.07 4/85 770
/proc/meminfo: memFree=1594872/2055912 swapFree=4192812/4192956
[pid=770] ppid=768 vsize=5356 CPUtime=0
/proc/770/stat : 770 (sh) R 768 770 362 0 -1 4194304 263 0 0 0 0 0 0 0 23 0 1 0 26748606 5484544 230 996147200 4194304 4889804 548682068864 18446744073709551615 255372754045 0 0 4100 65536 0 0 0 17 1 0 0
/proc/770/statm: 1339 230 192 169 0 50 0

[startup+0.099241 s]
/proc/loadavg: 1.96 2.07 2.07 4/85 770
/proc/meminfo: memFree=1594872/2055912 swapFree=4192812/4192956
[pid=770] ppid=768 vsize=62208 CPUtime=0.09
/proc/770/stat : 770 (bprolog) R 768 770 362 0 -1 4194304 1099 0 0 0 4 5 0 0 23 0 1 0 26748606 63700992 812 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/770/statm: 15552 812 176 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.101238 s]
/proc/loadavg: 1.96 2.07 2.07 4/85 770
/proc/meminfo: memFree=1594872/2055912 swapFree=4192812/4192956
[pid=770] ppid=768 vsize=62208 CPUtime=0.09
/proc/770/stat : 770 (bprolog) R 768 770 362 0 -1 4194304 1099 0 0 0 4 5 0 0 23 0 1 0 26748606 63700992 812 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/770/statm: 15552 812 176 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.301262 s]
/proc/loadavg: 1.96 2.07 2.07 4/85 770
/proc/meminfo: memFree=1594872/2055912 swapFree=4192812/4192956
[pid=770] ppid=768 vsize=62200 CPUtime=0.29
/proc/770/stat : 770 (bprolog) R 768 770 362 0 -1 4194304 1481 0 0 0 14 15 0 0 24 0 1 0 26748606 63692800 1191 996147200 134512640 135105188 4294956096 18446744073709551615 134809426 0 0 4096 2 0 0 0 17 1 0 0
/proc/770/statm: 15550 1191 192 144 0 15034 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62200

[startup+0.701301 s]
/proc/loadavg: 1.96 2.07 2.07 4/85 770
/proc/meminfo: memFree=1594872/2055912 swapFree=4192812/4192956
[pid=770] ppid=768 vsize=72444 CPUtime=0.69
/proc/770/stat : 770 (bprolog) R 768 770 362 0 -1 4194304 1600 0 0 0 54 15 0 0 25 0 2 0 26748606 74182656 1310 996147200 134512640 135105188 4294956096 18446744073709551615 134751446 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/770/statm: 18111 1310 198 144 0 17595 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 72444

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.736605
CPU time (s): 0.729888
CPU user time (s): 0.573912
CPU system time (s): 0.155976
CPU usage (%): 99.0881
Max. virtual memory (cumulated for all children) (KiB): 72444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.573912
system time used= 0.155976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1600
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= 5
involuntary context switches= 87

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node78 at 2009-07-12 13:07:20
IDJOB=2091864
IDBENCH=60154
IDSOLVER=770
FILE ID=node78/2091864-1247396840
PBS_JOBID= 9507363
Free space on /tmp= 126812 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/tightness0.1/normalized-rand-2-40-8-753-100-32_ext.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091864-1247396840/watcher-2091864-1247396840 -o /tmp/evaluation-result-2091864-1247396840/solver-2091864-1247396840 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2091864-1247396840 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= e5d0981df2edfda0c1fcfa705e7f7e16
RANDOM SEED=721318781

node78.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:      2055912 kB
MemFree:       1595352 kB
Buffers:         34808 kB
Cached:         124108 kB
SwapCached:          0 kB
Active:         347776 kB
Inactive:        60284 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1595352 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2020 kB
Writeback:           0 kB
Mapped:         264772 kB
Slab:            37044 kB
Committed_AS:   925000 kB
PageTables:       2276 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126812 MiB
End job on node78 at 2009-07-12 13:07:21