Trace number 2068502

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
pcs 0.3.2UNSAT 1.3318 1.44075

DiagnosticValue
ASSIGNMENTS34

General information on the benchmark

Namecsp/pseudo/primesDimacs/
normalized-bf-1355-638.xml
MD5SUMbddb728f1bba9acd4b4d127996acf647
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.658898
Satisfiable
(Un)Satisfiability was proved
Number of variables4354
Number of constraints8940
Maximum constraint arity6
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension8940
Global constraints used (with number of constraints)

Solver Data 

0.00/0.08	c has operations which may create big domains
0.00/0.08	c big-domain mode
0.01/0.12	c Seed is 413948195
0.01/0.12	c Constructing HOME/instance-2068502-1247706670.xml  with 25180 constraints
0.48/0.68	c Solving 34 backtracks 1 restarts
1.28/1.43	s UNSATISFIABLE
1.28/1.43	d ASSIGNMENTS 34

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2068502-1247706670/watcher-2068502-1247706670 -o /tmp/evaluation-result-2068502-1247706670/solver-2068502-1247706670 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 413948195 HOME/instance-2068502-1247706670.xml 

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: 1.87 1.97 1.97 4/82 12743
/proc/meminfo: memFree=1741304/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=18576 CPUtime=0
/proc/12743/stat : 12743 (runsolver) R 12741 12743 10937 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 57732182 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 249069890855 0 0 4096 24578 0 0 0 17 0 0 0
/proc/12743/statm: 4644 284 249 26 0 2626 0

[startup+0.0395771 s]
/proc/loadavg: 1.87 1.97 1.97 4/82 12743
/proc/meminfo: memFree=1741304/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=5356 CPUtime=0
/proc/12743/stat : 12743 (pcssolve) S 12741 12743 10937 0 -1 4194304 305 0 0 0 0 0 0 0 19 0 1 0 57732182 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 249069888324 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12743/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101584 s]
/proc/loadavg: 1.87 1.97 1.97 4/82 12743
/proc/meminfo: memFree=1741304/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=4336 CPUtime=0.01
/proc/12743/stat : 12743 (pcs.big) D 12741 12743 10937 0 -1 4194304 436 822 0 4 0 0 1 0 18 0 1 0 57732182 4440064 59 996147200 134512640 135215973 4294956304 18446744073709551615 11920292 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/12743/statm: 1084 59 43 171 0 13 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4336

[startup+0.301605 s]
/proc/loadavg: 1.87 1.97 1.97 4/82 12743
/proc/meminfo: memFree=1741304/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=7828 CPUtime=0.18
/proc/12743/stat : 12743 (pcs.big) R 12741 12743 10937 0 -1 4194304 1752 822 0 4 17 0 1 0 18 0 1 0 57732182 8015872 1163 996147200 134512640 135215973 4294956304 18446744073709551615 4159742256 0 0 4096 0 0 0 0 17 1 0 0
/proc/12743/statm: 1957 1163 385 171 0 882 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 7828

[startup+0.701662 s]
/proc/loadavg: 1.87 1.97 1.97 4/82 12743
/proc/meminfo: memFree=1741304/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=15716 CPUtime=0.58
/proc/12743/stat : 12743 (pcs.big) R 12741 12743 10937 0 -1 4194304 4419 822 0 4 56 1 1 0 22 0 1 0 57732182 16093184 2983 996147200 134512640 135215973 4294956304 18446744073709551615 12354022 0 0 4096 0 0 0 0 17 1 0 0
/proc/12743/statm: 3929 2983 395 171 0 2854 0
Current children cumulated CPU time (s) 0.58
Current children cumulated vsize (KiB) 15716

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

[startup+1.10669 s]
/proc/loadavg: 1.87 1.97 1.97 3/83 12749
/proc/meminfo: memFree=1726640/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=20944 CPUtime=0.98
/proc/12743/stat : 12743 (pcs.big) R 12741 12743 10937 0 -1 4194304 6220 822 0 4 95 2 1 0 25 0 1 0 57732182 21446656 3986 996147200 134512640 135215973 4294956304 18446744073709551615 134532701 0 0 4096 0 0 0 0 17 1 0 0
/proc/12743/statm: 5236 3986 409 171 0 4161 0
Current children cumulated CPU time (s) 0.98
Current children cumulated vsize (KiB) 20944

[startup+1.30171 s]
/proc/loadavg: 1.87 1.97 1.97 3/83 12749
/proc/meminfo: memFree=1726640/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=21076 CPUtime=1.18
/proc/12743/stat : 12743 (pcs.big) R 12741 12743 10937 0 -1 4194304 6281 822 0 4 115 2 1 0 25 0 1 0 57732182 21581824 4047 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/12743/statm: 5269 4047 409 171 0 4194 0
Current children cumulated CPU time (s) 1.18
Current children cumulated vsize (KiB) 21076

[startup+1.40172 s]
/proc/loadavg: 1.87 1.97 1.97 3/83 12749
/proc/meminfo: memFree=1726640/2055920 swapFree=4192812/4192956
[pid=12743] ppid=12741 vsize=21128 CPUtime=1.28
/proc/12743/stat : 12743 (pcs.big) R 12741 12743 10937 0 -1 4194304 6295 822 0 4 125 2 1 0 25 0 1 0 57732182 21635072 4060 996147200 134512640 135215973 4294956304 18446744073709551615 4159347457 0 0 4096 0 0 0 0 17 1 0 0
/proc/12743/statm: 5282 4060 409 171 0 4207 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 21128

Child status: 0
Real time (s): 1.44075
CPU time (s): 1.3318
CPU user time (s): 1.2968
CPU system time (s): 0.034994
CPU usage (%): 92.4378
Max. virtual memory (cumulated for all children) (KiB): 21128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2968
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7120
page faults= 4
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 35
involuntary context switches= 57

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node89 at 2009-07-16 03:11:10
IDJOB=2068502
IDBENCH=54871
IDSOLVER=733
FILE ID=node89/2068502-1247706670
PBS_JOBID= 9521140
Free space on /tmp= 66172 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/pseudo/primesDimacs/normalized-bf-1355-638.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2068502-1247706670/watcher-2068502-1247706670 -o /tmp/evaluation-result-2068502-1247706670/solver-2068502-1247706670 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 413948195 HOME/instance-2068502-1247706670.xml

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

MD5SUM BENCH= bddb728f1bba9acd4b4d127996acf647
RANDOM SEED=413948195

node89.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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1741784 kB
Buffers:         54488 kB
Cached:         127616 kB
SwapCached:          0 kB
Active:          93164 kB
Inactive:       147584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1741784 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5184 kB
Writeback:           0 kB
Mapped:          79036 kB
Slab:            58500 kB
Committed_AS:   547516 kB
PageTables:       1920 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= 66172 MiB
End job on node89 at 2009-07-16 03:11:12