Trace number 2081307

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 1.73873 1.76329

DiagnosticValue
ASSIGNMENTS37550

General information on the benchmark

Namecsp/varDimacs/
normalized-hole-07_ext.xml
MD5SUMd0dfb06c2c1647e5949b7f71273b876a
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 benchmark0.12598
Satisfiable
(Un)Satisfiability was proved
Number of variables56
Number of constraints204
Maximum constraint arity7
Maximum domain size2
Number of constraints which are defined in extension204
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.17/0.21	c Seed is 1448660598
0.17/0.21	c Constructing HOME/instance-2081307-1247719461.xml  with 204 constraints
0.17/0.21	c Solving 37550 backtracks 17 restarts
1.66/1.76	s UNSATISFIABLE
1.66/1.76	d ASSIGNMENTS 37550

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-2081307-1247719461/watcher-2081307-1247719461 -o /tmp/evaluation-result-2081307-1247719461/solver-2081307-1247719461 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1448660598 HOME/instance-2081307-1247719461.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: 2.00 2.01 2.00 4/82 12219
/proc/meminfo: memFree=1247616/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=5356 CPUtime=0
/proc/12219/stat : 12219 (pcssolve) R 12217 12219 10323 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59012764 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 227848809119 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12219/statm: 1339 241 200 169 0 50 0
[pid=12220] ppid=12219 vsize=5356 CPUtime=0
/proc/12220/stat : 12220 (pcssolve) R 12219 12219 10323 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59012765 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 227848809119 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12220/statm: 1339 241 200 169 0 50 0

[startup+0.0942861 s]
/proc/loadavg: 2.00 2.01 2.00 4/82 12219
/proc/meminfo: memFree=1247616/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=5068 CPUtime=0.07
/proc/12219/stat : 12219 (pcs.small) R 12217 12219 10323 0 -1 4194304 972 807 0 0 7 0 0 0 18 0 1 0 59012764 5189632 581 996147200 134512640 135095119 4294956304 18446744073709551615 8294264 0 0 4096 0 0 0 0 17 1 0 0
/proc/12219/statm: 1267 581 379 142 0 221 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5068

[startup+0.101283 s]
/proc/loadavg: 2.00 2.01 2.00 4/82 12219
/proc/meminfo: memFree=1247616/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=5332 CPUtime=0.07
/proc/12219/stat : 12219 (pcs.small) R 12217 12219 10323 0 -1 4194304 1040 807 0 0 7 0 0 0 18 0 1 0 59012764 5459968 649 996147200 134512640 135095119 4294956304 18446744073709551615 134615498 0 0 4096 0 0 0 0 17 1 0 0
/proc/12219/statm: 1333 649 379 142 0 287 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5332

[startup+0.301305 s]
/proc/loadavg: 2.00 2.01 2.00 4/82 12219
/proc/meminfo: memFree=1247616/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=7024 CPUtime=0.27
/proc/12219/stat : 12219 (pcs.small) R 12217 12219 10323 0 -1 4194304 1545 807 0 0 27 0 0 0 19 0 1 0 59012764 7192576 1023 996147200 134512640 135095119 4294956304 18446744073709551615 134643066 0 0 4096 0 0 0 0 17 1 0 0
/proc/12219/statm: 1756 1023 379 142 0 710 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7024

[startup+0.701343 s]
/proc/loadavg: 2.00 2.01 2.00 4/82 12219
/proc/meminfo: memFree=1247616/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=10260 CPUtime=0.67
/proc/12219/stat : 12219 (pcs.small) R 12217 12219 10323 0 -1 4194304 2549 807 0 0 66 1 0 0 23 0 1 0 59012764 10506240 1833 996147200 134512640 135095119 4294956304 18446744073709551615 134578297 0 0 4096 0 0 0 0 17 1 0 0
/proc/12219/statm: 2565 1833 379 142 0 1519 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 10260

[startup+1.50142 s]
/proc/loadavg: 2.00 2.01 2.00 3/83 12225
/proc/meminfo: memFree=1239288/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=22396 CPUtime=1.47
/proc/12219/stat : 12219 (pcs.small) R 12217 12219 10323 0 -1 4194304 5628 807 0 0 145 2 0 0 25 0 1 0 59012764 22933504 4526 996147200 134512640 135095119 4294956304 18446744073709551615 8291664 0 0 4096 0 0 0 0 17 1 0 0
/proc/12219/statm: 5599 4526 379 142 0 4553 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 22396

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

[startup+1.70144 s]
/proc/loadavg: 2.00 2.01 2.00 3/83 12225
/proc/meminfo: memFree=1239288/2055920 swapFree=4192812/4192956
[pid=12219] ppid=12217 vsize=21368 CPUtime=1.66
/proc/12219/stat : 12219 (pcs.small) R 12217 12219 10323 0 -1 4194304 5709 807 0 0 164 2 0 0 25 0 1 0 59012764 21880832 4350 996147200 134512640 135095119 4294956304 18446744073709551615 134615655 0 0 4096 0 0 0 0 17 1 0 0
/proc/12219/statm: 5342 4350 379 142 0 4296 0
Current children cumulated CPU time (s) 1.66
Current children cumulated vsize (KiB) 21368

Child status: 0
Real time (s): 1.76329
CPU time (s): 1.73873
CPU user time (s): 1.70274
CPU system time (s): 0.035994
CPU usage (%): 98.6075
Max. virtual memory (cumulated for all children) (KiB): 22396

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.70274
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6532
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= 83

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node18 at 2009-07-16 06:44:21
IDJOB=2081307
IDBENCH=57386
IDSOLVER=734
FILE ID=node18/2081307-1247719461
PBS_JOBID= 9521354
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/varDimacs/normalized-hole-07_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081307-1247719461/watcher-2081307-1247719461 -o /tmp/evaluation-result-2081307-1247719461/solver-2081307-1247719461 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1448660598 HOME/instance-2081307-1247719461.xml

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

MD5SUM BENCH= d0dfb06c2c1647e5949b7f71273b876a
RANDOM SEED=1448660598

node18.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		: 3000.243
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		: 3000.243
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:       1248032 kB
Buffers:         86768 kB
Cached:         367948 kB
SwapCached:          0 kB
Active:         349964 kB
Inactive:       377920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1248032 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1724 kB
Writeback:           0 kB
Mapped:         293612 kB
Slab:            64640 kB
Committed_AS:   829192 kB
PageTables:       2316 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= 66316 MiB
End job on node18 at 2009-07-16 06:44:23