Trace number 2081799

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 0.491924 0.51724

General information on the benchmark

Namecsp/rlfapScensMod/
normalized-scen3-f10.xml
MD5SUM7c031a4f0ae7f5abe8f5afc15d4bc282
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.272957
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints2760
Maximum constraint arity2
Maximum domain size34
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2760
Global constraints used (with number of constraints)

Solver Data 

0.01/0.02	c bpsolver version 6.29.2009
0.01/0.02	c converting(HOME/instance-2081799-1247374403)
0.37/0.42	c Converted in 186 ms
0.37/0.48	c solving(HOME/instance-2081799-1247374403,1800000)
0.37/0.48	c solving(HOME/instance-2081799-1247374403,1800000)
0.48/0.50	c (ffc_inout)
0.48/0.50	s SATISFIABLE
0.48/0.50	v 142 380 142 380 282 44 338 100 254 16 268 30 366 128 296 58 254 16 282 44 16 254 352 114 310 72 352 114 58 296 414 652 16 254 324 86 142 380 254 16 254 16 352 114 414 652 30 268 310 72 100 338 44 282 352 114 16 254 142 380 366 128 30 268 100 338 254 16 86 324 142 380 268 30 268 30 254 16 268 30 366 128 296 58 310 72 310 72 324 86 324 86 310 72 156 394 268 30 114 352 296 58 268 30 254 16 142 380 296 58 652 414 114 352 254 16 128 366 254 16 100 338 58 296 58 296 142 380 142 380 366 128 296 58 380 142 338 100 394 156 394 156 324 86 254 16 352 114 296 58 30 268 268 30 352 114 380 142 310 72 100 338 282 44 296 58 254 16 338 100 310 72 268 30 282 44 310 72 100 338 352 114 296 58 128 366 268 30 338 100 282 44 30 268 268 30 310 72 268 30 128 366 30 268 30 268 338 100 128 366 30 268 128 366 58 296 114 352 30 268 380 142 142 380 44 282 100 338 44 282 16 254 254 16 156 394 30 268 254 16 58 296 114 352 44 282 268 30 30 268 128 366 128 366 128 366 282 44 30 268 128 366 282 44 30 268 338 100 338 100 366 128 338 100 30 268 30 268 44 282 30 268 114 352 16 254 30 268 268 30 310 72 254 16 16 254 30 268 30 268 114 352 16 254 16 254 86 324 310 72 156 394 394 156 324 86 254 16 254 16 100 338 100 338 72 310 254 16 282 44 30 268 30 268 30 268 352 114 114 352 128 366 86 324 30 268 254 16 72 310 114 352 142 380 30 268 338 100 268 30 100 338 30 268 352 114 282 44 268 30 44 282 268 30 30 268 114 352 72 310 30 268 100 338 30 268 30 268 114 352 338 100 100 338 44 282 86 324 338 100 
0.48/0.51	
0.48/0.51	c Time=75 ms Backtracks=17
0.48/0.51

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-2081799-1247374403/watcher-2081799-1247374403 -o /tmp/evaluation-result-2081799-1247374403/solver-2081799-1247374403 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2081799-1247374403 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: 1.92 2.00 1.99 4/74 23969
/proc/meminfo: memFree=1202952/2055920 swapFree=4192812/4192956
[pid=23969] ppid=23967 vsize=18576 CPUtime=0
/proc/23969/stat : 23969 (runsolver) R 23967 23969 20092 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 24506634 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 269028486439 0 0 4096 24578 0 0 0 17 1 0 0
/proc/23969/statm: 4644 284 249 26 0 2626 0

[startup+0.0291429 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 23969
/proc/meminfo: memFree=1202952/2055920 swapFree=4192812/4192956
[pid=23969] ppid=23967 vsize=62196 CPUtime=0.01
/proc/23969/stat : 23969 (bprolog) R 23967 23969 20092 0 -1 4194304 1067 0 0 0 1 0 0 0 20 0 1 0 24506634 63688704 780 996147200 134512640 135105188 4294956096 18446744073709551615 12569501 0 0 4096 2 0 0 0 17 1 0 0
/proc/23969/statm: 15549 780 152 144 0 15033 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 62196

[startup+0.101154 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 23969
/proc/meminfo: memFree=1202952/2055920 swapFree=4192812/4192956
[pid=23969] ppid=23967 vsize=62208 CPUtime=0.08
/proc/23969/stat : 23969 (bprolog) R 23967 23969 20092 0 -1 4194304 1143 0 0 0 5 3 0 0 20 0 1 0 24506634 63700992 856 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/23969/statm: 15552 856 176 144 0 15036 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 62208

[startup+0.301184 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 23969
/proc/meminfo: memFree=1202952/2055920 swapFree=4192812/4192956
[pid=23969] ppid=23967 vsize=62208 CPUtime=0.28
/proc/23969/stat : 23969 (bprolog) R 23967 23969 20092 0 -1 4194304 1148 0 0 0 14 14 0 0 21 0 1 0 24506634 63700992 861 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/23969/statm: 15552 861 176 144 0 15036 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 62208

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

[startup+0.501221 s]
/proc/loadavg: 1.92 2.00 1.99 4/74 23969
/proc/meminfo: memFree=1202952/2055920 swapFree=4192812/4192956
[pid=23969] ppid=23967 vsize=80452 CPUtime=0.48
/proc/23969/stat : 23969 (bprolog) R 23967 23969 20092 0 -1 4194304 1963 0 0 0 27 21 0 0 23 0 2 0 24506634 82382848 1673 996147200 134512640 135105188 4294956096 18446744073709551615 134736847 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/23969/statm: 20113 1673 194 144 0 19597 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 80452

Child status: 0
Real time (s): 0.51724
CPU time (s): 0.491924
CPU user time (s): 0.278957
CPU system time (s): 0.212967
CPU usage (%): 95.1056
Max. virtual memory (cumulated for all children) (KiB): 80452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.278957
system time used= 0.212967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1986
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= 3
involuntary context switches= 443

runsolver used 0.006998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node26 at 2009-07-12 06:53:23
IDJOB=2081799
IDBENCH=57498
IDSOLVER=770
FILE ID=node26/2081799-1247374403
PBS_JOBID= 9507081
Free space on /tmp= 66240 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/rlfapScensMod/normalized-scen3-f10.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081799-1247374403/watcher-2081799-1247374403 -o /tmp/evaluation-result-2081799-1247374403/solver-2081799-1247374403 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2081799-1247374403 1800

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

MD5SUM BENCH= 7c031a4f0ae7f5abe8f5afc15d4bc282
RANDOM SEED=2091162960

node26.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		: 3000.281
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		: 3000.281
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:       1203432 kB
Buffers:         50800 kB
Cached:         442812 kB
SwapCached:          0 kB
Active:         592764 kB
Inactive:       179644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1203432 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1680 kB
Writeback:           0 kB
Mapped:         289948 kB
Slab:            64732 kB
Committed_AS:   444936 kB
PageTables:       2364 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= 66236 MiB
End job on node26 at 2009-07-12 06:53:24