Trace number 2075707

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 4.91425 4.97076

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/bmc/
normalized-bmc-ibm-07-16.xml
MD5SUM0f0b449a2eeb7946cbda6c80af844fbf
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 benchmark2.94155
Satisfiable
(Un)Satisfiability was proved
Number of variables8710
Number of constraints48484
Maximum constraint arity33
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48484
Global constraints used (with number of constraints)

Solver Data 

0.00/0.06	c has operations which may create big domains
0.00/0.06	c big-domain mode
0.07/0.10	c Seed is 1272478445
0.07/0.10	c Constructing HOME/instance-2075707-1247713833.xml  with 162606 constraints
3.44/3.59	c Solving 0 backtracks
4.82/4.96	s UNSATISFIABLE
4.82/4.96	d ASSIGNMENTS 0

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-2075707-1247713833/watcher-2075707-1247713833 -o /tmp/evaluation-result-2075707-1247713833/solver-2075707-1247713833 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1272478445 HOME/instance-2075707-1247713833.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: 2.06 2.03 2.00 4/82 16296
/proc/meminfo: memFree=1708888/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=18576 CPUtime=0
/proc/16296/stat : 16296 (runsolver) R 16294 16296 15459 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 58450249 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 212234464551 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16296/statm: 4644 284 249 26 0 2626 0

[startup+0.020321 s]
/proc/loadavg: 2.06 2.03 2.00 4/82 16296
/proc/meminfo: memFree=1708888/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=5356 CPUtime=0
/proc/16296/stat : 16296 (pcssolve) R 16294 16296 15459 0 -1 4194304 326 317 0 0 0 0 0 0 23 0 1 0 58450249 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 212234463903 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16296/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101298 s]
/proc/loadavg: 2.06 2.03 2.00 4/82 16296
/proc/meminfo: memFree=1708888/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=5364 CPUtime=0.07
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 1008 826 0 0 3 0 4 0 18 0 1 0 58450249 5492736 617 996147200 134512640 135215973 4294956304 18446744073709551615 7044209 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 1341 617 361 171 0 266 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5364

[startup+0.301329 s]
/proc/loadavg: 2.06 2.03 2.00 4/82 16296
/proc/meminfo: memFree=1708888/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=9036 CPUtime=0.28
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 1945 826 0 0 23 1 4 0 19 0 1 0 58450249 9252864 1313 996147200 134512640 135215973 4294956304 18446744073709551615 134761742 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 2259 1313 384 171 0 1184 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 9036

[startup+0.7014 s]
/proc/loadavg: 2.06 2.03 2.00 4/82 16296
/proc/meminfo: memFree=1708888/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=13436 CPUtime=0.67
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 3384 826 0 0 62 1 4 0 23 0 1 0 58450249 13758464 2364 996147200 134512640 135215973 4294956304 18446744073709551615 4158911390 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 3359 2364 386 171 0 2284 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 13436

[startup+1.50154 s]
/proc/loadavg: 2.06 2.03 2.00 4/83 16302
/proc/meminfo: memFree=1697488/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=25100 CPUtime=1.46
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 7358 826 0 0 139 3 4 0 25 0 1 0 58450249 25702400 4776 996147200 134512640 135215973 4294956304 18446744073709551615 134600344 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 6275 4776 386 171 0 5200 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 25100

[startup+3.10282 s]
/proc/loadavg: 2.06 2.03 2.00 3/83 16302
/proc/meminfo: memFree=1684432/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=52720 CPUtime=3.04
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 16359 826 0 0 293 7 4 0 25 0 1 0 58450249 53985280 10184 996147200 134512640 135215973 4294956304 18446744073709551615 4159786246 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 13180 10184 386 171 0 12105 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 52720

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

[startup+3.90196 s]
/proc/loadavg: 2.06 2.03 2.00 3/83 16302
/proc/meminfo: memFree=1668368/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=70600 CPUtime=3.84
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 24495 826 0 0 369 11 4 0 25 0 1 0 58450249 72294400 15774 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 17650 15774 402 171 0 16575 0
Current children cumulated CPU time (s) 3.84
Current children cumulated vsize (KiB) 70600

[startup+4.7011 s]
/proc/loadavg: 2.06 2.03 2.00 3/83 16302
/proc/meminfo: memFree=1633744/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=89172 CPUtime=4.62
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 30700 826 0 0 445 13 4 0 25 0 1 0 58450249 91312128 19481 996147200 134512640 135215973 4294956304 18446744073709551615 134583400 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 22293 19481 402 171 0 21218 0
Current children cumulated CPU time (s) 4.62
Current children cumulated vsize (KiB) 89172

[startup+4.90113 s]
/proc/loadavg: 2.06 2.03 2.00 3/83 16302
/proc/meminfo: memFree=1633744/2055920 swapFree=4192812/4192956
[pid=16296] ppid=16294 vsize=69768 CPUtime=4.82
/proc/16296/stat : 16296 (pcs.big) R 16294 16296 15459 0 -1 4194304 30749 826 0 0 464 14 4 0 25 0 1 0 58450249 71442432 15471 996147200 134512640 135215973 4294956304 18446744073709551615 7356485 0 0 4096 0 0 0 0 17 1 0 0
/proc/16296/statm: 17442 15471 404 171 0 16367 0
Current children cumulated CPU time (s) 4.82
Current children cumulated vsize (KiB) 69768

Child status: 0
Real time (s): 4.97076
CPU time (s): 4.91425
CPU user time (s): 4.75228
CPU system time (s): 0.161975
CPU usage (%): 98.8631
Max. virtual memory (cumulated for all children) (KiB): 89172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.75228
system time used= 0.161975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 31578
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= 23
involuntary context switches= 216

runsolver used 0.004999 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node14 at 2009-07-16 05:10:33
IDJOB=2075707
IDBENCH=56338
IDSOLVER=733
FILE ID=node14/2075707-1247713833
PBS_JOBID= 9521402
Free space on /tmp= 66448 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/bmc/normalized-bmc-ibm-07-16.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2075707-1247713833/watcher-2075707-1247713833 -o /tmp/evaluation-result-2075707-1247713833/solver-2075707-1247713833 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1272478445 HOME/instance-2075707-1247713833.xml

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

MD5SUM BENCH= 0f0b449a2eeb7946cbda6c80af844fbf
RANDOM SEED=1272478445

node14.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		: 3000.265
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		: 3000.265
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:       1709368 kB
Buffers:         73092 kB
Cached:         163276 kB
SwapCached:          0 kB
Active:         108168 kB
Inactive:       162036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1709368 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            8476 kB
Writeback:           0 kB
Mapped:          54228 kB
Slab:            61356 kB
Committed_AS:   604448 kB
PageTables:       1940 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= 66448 MiB
End job on node14 at 2009-07-16 05:10:38