Trace number 2088577

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 6.26305 6.32022

DiagnosticValue
ASSIGNMENTS2

General information on the benchmark

Namecsp/subs/
normalized-scen06-sub4.xml
MD5SUMbb06c4786729b9bb95e26e13ba659421
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.070989
Satisfiable
(Un)Satisfiability was proved
Number of variables44
Number of constraints499
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension499
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.21	c Seed is 510062484
0.18/0.21	c Constructing HOME/instance-2088577-1247729453.xml  with 1475 constraints
0.18/0.21	c Solving 2 backtracks
6.23/6.31	s UNSATISFIABLE
6.23/6.31	d ASSIGNMENTS 2

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-2088577-1247729453/watcher-2088577-1247729453 -o /tmp/evaluation-result-2088577-1247729453/solver-2088577-1247729453 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 510062484 HOME/instance-2088577-1247729453.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: 2.13 2.03 2.01 4/81 16217
/proc/meminfo: memFree=1407624/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=5356 CPUtime=0
/proc/16217/stat : 16217 (pcssolve) R 16215 16217 15552 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 60008474 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 217051622047 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16217/statm: 1339 241 200 169 0 50 0
[pid=16218] ppid=16217 vsize=5356 CPUtime=0
/proc/16218/stat : 16218 (pcssolve) R 16217 16217 15552 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 60008474 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 217051622047 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16218/statm: 1339 241 200 169 0 50 0

[startup+0.111158 s]
/proc/loadavg: 2.13 2.03 2.01 4/81 16217
/proc/meminfo: memFree=1407624/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=5564 CPUtime=0.09
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 1071 662 0 0 9 0 0 0 18 0 1 0 60008474 5697536 702 996147200 134512640 135215973 4294956304 18446744073709551615 4158960033 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 1391 702 401 171 0 316 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5564

[startup+0.201174 s]
/proc/loadavg: 2.13 2.03 2.01 4/81 16217
/proc/meminfo: memFree=1407624/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=6224 CPUtime=0.18
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 1232 662 0 0 18 0 0 0 18 0 1 0 60008474 6373376 863 996147200 134512640 135215973 4294956304 18446744073709551615 134584058 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 1556 863 401 171 0 481 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6224

[startup+0.301194 s]
/proc/loadavg: 2.13 2.03 2.01 4/81 16217
/proc/meminfo: memFree=1407624/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=7052 CPUtime=0.27
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 1432 662 0 0 27 0 0 0 19 0 1 0 60008474 7221248 1063 996147200 134512640 135215973 4294956304 18446744073709551615 134583616 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 1763 1063 401 171 0 688 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7052

[startup+0.701268 s]
/proc/loadavg: 2.13 2.03 2.01 4/81 16217
/proc/meminfo: memFree=1407624/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=9376 CPUtime=0.68
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 2033 662 0 0 67 1 0 0 23 0 1 0 60008474 9601024 1664 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 2344 1664 401 171 0 1269 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 9376

[startup+1.50246 s]
/proc/loadavg: 2.13 2.03 2.01 3/82 16222
/proc/meminfo: memFree=1402240/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=10036 CPUtime=1.47
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 2177 662 0 0 146 1 0 0 25 0 1 0 60008474 10276864 1808 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 2509 1808 401 171 0 1434 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 10036

[startup+3.10173 s]
/proc/loadavg: 2.12 2.03 2.01 3/82 16222
/proc/meminfo: memFree=1401024/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=14472 CPUtime=3.05
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 3284 662 0 0 304 1 0 0 25 0 1 0 60008474 14819328 2915 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 3618 2915 401 171 0 2543 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 14472

[startup+6.30234 s]
/proc/loadavg: 2.12 2.03 2.01 3/82 16222
/proc/meminfo: memFree=1397248/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=22732 CPUtime=6.23
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 5387 662 0 0 621 2 0 0 25 0 1 0 60008474 23277568 4965 996147200 134512640 135215973 4294956304 18446744073709551615 4158960018 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 5683 4965 404 171 0 4608 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 22732

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

[startup+6.30234 s]
/proc/loadavg: 2.12 2.03 2.01 3/82 16222
/proc/meminfo: memFree=1397248/2055920 swapFree=4192812/4192956
[pid=16217] ppid=16215 vsize=22732 CPUtime=6.23
/proc/16217/stat : 16217 (pcs.big) R 16215 16217 15552 0 -1 4194304 5387 662 0 0 621 2 0 0 25 0 1 0 60008474 23277568 4965 996147200 134512640 135215973 4294956304 18446744073709551615 4158960018 0 0 4096 0 0 0 0 17 1 0 0
/proc/16217/statm: 5683 4965 404 171 0 4608 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 22732

Child status: 0
Real time (s): 6.32022
CPU time (s): 6.26305
CPU user time (s): 6.22805
CPU system time (s): 0.034994
CPU usage (%): 99.0955
Max. virtual memory (cumulated for all children) (KiB): 22732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.22805
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= 6051
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= 21
involuntary context switches= 267

runsolver used 0.009998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node59 at 2009-07-16 09:30:54
IDJOB=2088577
IDBENCH=58940
IDSOLVER=733
FILE ID=node59/2088577-1247729453
PBS_JOBID= 9521587
Free space on /tmp= 66340 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/subs/normalized-scen06-sub4.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2088577-1247729453/watcher-2088577-1247729453 -o /tmp/evaluation-result-2088577-1247729453/solver-2088577-1247729453 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 510062484 HOME/instance-2088577-1247729453.xml

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

MD5SUM BENCH= bb06c4786729b9bb95e26e13ba659421
RANDOM SEED=510062484

node59.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		: 3000.263
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		: 3000.263
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:       1408104 kB
Buffers:        107400 kB
Cached:         379548 kB
SwapCached:          0 kB
Active:         122764 kB
Inactive:       427904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1408104 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2276 kB
Writeback:           0 kB
Mapped:          84112 kB
Slab:            82092 kB
Committed_AS:   629544 kB
PageTables:       2032 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= 66340 MiB
End job on node59 at 2009-07-16 09:31:00