Trace number 2075873

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-restart 0.3.2UNSAT 1.67274 1.69408

DiagnosticValue
ASSIGNMENTS164

General information on the benchmark

Namecsp/modifiedRenault/
normalized-renault-mod-16_ext.xml
MD5SUM9636fb8dcf169e67c77f903dbcf6fa63
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.532918
Satisfiable
(Un)Satisfiability was proved
Number of variables111
Number of constraints149
Maximum constraint arity10
Maximum domain size42
Number of constraints which are defined in extension149
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.03	c has big domains
0.00/0.03	c big-domain mode
0.18/0.21	c Seed is 1541349639
0.18/0.21	c Constructing HOME/instance-2075873-1247713944.xml  with 273 constraints
1.17/1.22	c Solving 164 backtracks 4 restarts
1.56/1.69	s UNSATISFIABLE
1.56/1.69	d ASSIGNMENTS 164

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-2075873-1247713944/watcher-2075873-1247713944 -o /tmp/evaluation-result-2075873-1247713944/solver-2075873-1247713944 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1541349639 HOME/instance-2075873-1247713944.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: 2.04 2.02 2.00 4/72 17865
/proc/meminfo: memFree=1602800/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=5356 CPUtime=0
/proc/17865/stat : 17865 (pcssolve) R 17863 17865 17061 0 -1 4194304 273 0 0 0 0 0 0 0 22 0 1 0 58457862 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 273653754527 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17865/statm: 1339 241 200 169 0 50 0
[pid=17866] ppid=17865 vsize=5356 CPUtime=0
/proc/17866/stat : 17866 (pcssolve) R 17865 17865 17061 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 1 0 58457863 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 273653754527 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17866/statm: 1339 241 200 169 0 50 0

[startup+0.0933551 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 17865
/proc/meminfo: memFree=1602800/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=5324 CPUtime=0.07
/proc/17865/stat : 17865 (pcs.big) R 17863 17865 17061 0 -1 4194304 971 1661 0 0 6 0 1 0 18 0 1 0 58457862 5451776 602 996147200 134512640 135215973 4294956304 18446744073709551615 4775558 0 0 4096 0 0 0 0 17 1 0 0
/proc/17865/statm: 1331 602 385 171 0 256 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5324

[startup+0.102354 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 17865
/proc/meminfo: memFree=1602800/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=5324 CPUtime=0.08
/proc/17865/stat : 17865 (pcs.big) R 17863 17865 17061 0 -1 4194304 971 1661 0 0 7 0 1 0 18 0 1 0 58457862 5451776 602 996147200 134512640 135215973 4294956304 18446744073709551615 4742582 0 0 4096 0 0 0 0 17 1 0 0
/proc/17865/statm: 1331 602 385 171 0 256 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5324

[startup+0.302368 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 17865
/proc/meminfo: memFree=1602800/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=7632 CPUtime=0.27
/proc/17865/stat : 17865 (pcs.big) R 17863 17865 17061 0 -1 4194304 1332 1661 0 0 26 0 1 0 19 0 1 0 58457862 7815168 963 996147200 134512640 135215973 4294956304 18446744073709551615 134882182 0 0 4096 0 0 0 0 17 1 0 0
/proc/17865/statm: 1908 963 385 171 0 833 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7632

[startup+0.702394 s]
/proc/loadavg: 2.04 2.02 2.00 4/72 17865
/proc/meminfo: memFree=1602800/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=11444 CPUtime=0.67
/proc/17865/stat : 17865 (pcs.big) R 17863 17865 17061 0 -1 4194304 2505 1661 0 0 66 0 1 0 23 0 1 0 58457862 11718656 1698 996147200 134512640 135215973 4294956304 18446744073709551615 4775518 0 0 4096 0 0 0 0 17 1 0 0
/proc/17865/statm: 2861 1698 385 171 0 1786 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 11444

[startup+1.50145 s]
/proc/loadavg: 2.04 2.02 2.00 3/73 17870
/proc/meminfo: memFree=1595240/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=12396 CPUtime=1.46
/proc/17865/stat : 17865 (pcs.big) R 17863 17865 17061 0 -1 4194304 3347 1661 0 0 144 1 1 0 25 0 1 0 58457862 12693504 2315 996147200 134512640 135215973 4294956304 18446744073709551615 134583202 0 0 4096 0 0 0 0 17 1 0 0
/proc/17865/statm: 3099 2315 403 171 0 2024 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 12396

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

[startup+1.60145 s]
/proc/loadavg: 2.04 2.02 2.00 3/73 17870
/proc/meminfo: memFree=1595240/2055920 swapFree=4192812/4192956
[pid=17865] ppid=17863 vsize=12396 CPUtime=1.56
/proc/17865/stat : 17865 (pcs.big) R 17863 17865 17061 0 -1 4194304 3347 1661 0 0 154 1 1 0 25 0 1 0 58457862 12693504 2315 996147200 134512640 135215973 4294956304 18446744073709551615 134583202 0 0 4096 0 0 0 0 17 1 0 0
/proc/17865/statm: 3099 2315 403 171 0 2024 0
Current children cumulated CPU time (s) 1.56
Current children cumulated vsize (KiB) 12396

Child status: 0
Real time (s): 1.69408
CPU time (s): 1.67274
CPU user time (s): 1.64975
CPU system time (s): 0.022996
CPU usage (%): 98.7406
Max. virtual memory (cumulated for all children) (KiB): 15224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.64975
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5011
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= 20
involuntary context switches= 49

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node52 at 2009-07-16 05:12:24
IDJOB=2075873
IDBENCH=56355
IDSOLVER=734
FILE ID=node52/2075873-1247713944
PBS_JOBID= 9521458
Free space on /tmp= 66184 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/modifiedRenault/normalized-renault-mod-16_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2075873-1247713944/watcher-2075873-1247713944 -o /tmp/evaluation-result-2075873-1247713944/solver-2075873-1247713944 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1541349639 HOME/instance-2075873-1247713944.xml

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

MD5SUM BENCH= 9636fb8dcf169e67c77f903dbcf6fa63
RANDOM SEED=1541349639

node52.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		: 3000.236
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		: 3000.236
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:       1603344 kB
Buffers:         71540 kB
Cached:         230720 kB
SwapCached:          0 kB
Active:         155168 kB
Inactive:       228932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1603344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4700 kB
Writeback:           0 kB
Mapped:          93312 kB
Slab:            53712 kB
Committed_AS:   727240 kB
PageTables:       2024 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= 66180 MiB
End job on node52 at 2009-07-16 05:12:26