Trace number 2091834

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 59.9439 60.467

DiagnosticValue
ASSIGNMENTS92603

General information on the benchmark

Namecsp/tightness0.1/
normalized-rand-2-40-8-753-100-20_ext.xml
MD5SUMb4c1cc8abc5da413e6416ff5267a7f65
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.65829
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints752
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension752
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
0.00/0.01	c Seed is 1687535815
0.00/0.01	c Constructing HOME/instance-2091834-1247733497.xml  with 3088 constraints
0.01/0.05	c Solving 92603 backtracks 19 restarts
59.87/60.46	s UNSATISFIABLE
59.87/60.46	d ASSIGNMENTS 92603

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-2091834-1247733497/watcher-2091834-1247733497 -o /tmp/evaluation-result-2091834-1247733497/solver-2091834-1247733497 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1687535815 HOME/instance-2091834-1247733497.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 2.00 2.00 4/82 15888
/proc/meminfo: memFree=1610432/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=5356 CPUtime=0
/proc/15888/stat : 15888 (pcssolve) R 15886 15888 15416 0 -1 4194304 339 317 0 0 0 0 0 0 25 0 1 0 60414931 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 270187160388 0 65536 4100 65538 0 0 0 17 1 0 0
/proc/15888/statm: 1339 242 201 169 0 50 0
[pid=15891] ppid=15888 vsize=0 CPUtime=0
/proc/15891/stat : 15891 (fgrep) Z 15888 15888 15416 0 -1 4194316 157 0 0 0 0 0 0 0 18 0 1 0 60414932 0 0 996147200 0 0 0 0 0 0 0 4096 0 18446744071563351923 0 0 17 0 0 0
/proc/15891/statm: 0 0 0 0 0 0 0
[pid=15892] ppid=15888 vsize=5356 CPUtime=0
/proc/15892/stat : 15892 (pcssolve) R 15888 15888 15416 0 -1 4194368 22 0 0 0 0 0 0 0 25 0 1 0 60414932 5484544 244 996147200 4194304 4889804 548682068800 18446744073709551615 270187162919 0 0 4096 0 0 0 0 17 0 0 0
/proc/15892/statm: 1339 244 203 169 0 50 0

[startup+0.0276369 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15888
/proc/meminfo: memFree=1610432/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=4508 CPUtime=0.01
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 847 822 0 0 1 0 0 0 25 0 1 0 60414931 4616192 456 996147200 134512640 135095119 4294956304 18446744073709551615 10388433 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 1127 456 364 142 0 81 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4508

[startup+0.101644 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15888
/proc/meminfo: memFree=1610432/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=5080 CPUtime=0.08
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 1001 822 0 0 8 0 0 0 25 0 1 0 60414931 5201920 610 996147200 134512640 135095119 4294956304 18446744073709551615 134617057 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 1270 610 378 142 0 224 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5080

[startup+0.301667 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15888
/proc/meminfo: memFree=1610432/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=5340 CPUtime=0.28
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 1064 822 0 0 28 0 0 0 25 0 1 0 60414931 5468160 640 996147200 134512640 135095119 4294956304 18446744073709551615 134589510 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 1335 640 378 142 0 289 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5340

[startup+0.701712 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15888
/proc/meminfo: memFree=1610432/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=5728 CPUtime=0.68
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 1207 822 0 0 68 0 0 0 25 0 1 0 60414931 5865472 750 996147200 134512640 135095119 4294956304 18446744073709551615 134617021 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 1432 750 378 142 0 386 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5728

[startup+1.5018 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1608568/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=6900 CPUtime=1.47
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 1578 822 0 0 147 0 0 0 25 0 1 0 60414931 7065600 991 996147200 134512640 135095119 4294956304 18446744073709551615 134636924 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 1725 991 378 142 0 679 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 6900

[startup+3.10199 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1607224/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=8320 CPUtime=3.06
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 2071 822 0 0 306 0 0 0 25 0 1 0 60414931 8519680 1355 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 2080 1355 378 142 0 1034 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 8320

[startup+6.30136 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1604216/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=11428 CPUtime=6.23
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 3109 822 0 0 623 0 0 0 25 0 1 0 60414931 11702272 2007 996147200 134512640 135095119 4294956304 18446744073709551615 134636931 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 2857 2007 378 142 0 1811 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 11428

[startup+12.7011 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1599224/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=17512 CPUtime=12.57
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 5019 822 0 0 1256 1 0 0 25 0 1 0 60414931 17932288 3147 996147200 134512640 135095119 4294956304 18446744073709551615 134641862 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 4378 3147 378 142 0 3332 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 17512

[startup+25.5016 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1594104/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=24608 CPUtime=25.26
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 7330 822 0 0 2524 2 0 0 25 0 1 0 60414931 25198592 4433 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 6152 4433 378 142 0 5106 0
Current children cumulated CPU time (s) 25.26
Current children cumulated vsize (KiB) 24608

[startup+51.1015 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1585464/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=32052 CPUtime=50.64
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 9986 822 0 0 5060 4 0 0 25 0 1 0 60414931 32821248 6576 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 8013 6576 378 142 0 6967 0
Current children cumulated CPU time (s) 50.64
Current children cumulated vsize (KiB) 32052

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

[startup+54.3019 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1584632/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=32572 CPUtime=53.81
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 10203 822 0 0 5377 4 0 0 25 0 1 0 60414931 33353728 6793 996147200 134512640 135095119 4294956304 18446744073709551615 134554977 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 8143 6793 378 142 0 7097 0
Current children cumulated CPU time (s) 53.81
Current children cumulated vsize (KiB) 32572

[startup+57.5012 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1583672/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=33220 CPUtime=56.99
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 10418 822 0 0 5694 5 0 0 25 0 1 0 60414931 34017280 7008 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 8305 7008 378 142 0 7259 0
Current children cumulated CPU time (s) 56.99
Current children cumulated vsize (KiB) 33220

[startup+59.1014 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1583352/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=33484 CPUtime=58.58
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 10525 822 0 0 5853 5 0 0 25 0 1 0 60414931 34287616 7115 996147200 134512640 135095119 4294956304 18446744073709551615 134642693 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 8371 7115 378 142 0 7325 0
Current children cumulated CPU time (s) 58.58
Current children cumulated vsize (KiB) 33484

[startup+59.9015 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1583096/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=33612 CPUtime=59.37
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 10580 822 0 0 5932 5 0 0 25 0 1 0 60414931 34418688 7170 996147200 134512640 135095119 4294956304 18446744073709551615 134642952 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 8403 7170 378 142 0 7357 0
Current children cumulated CPU time (s) 59.37
Current children cumulated vsize (KiB) 33612

[startup+60.3016 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1583096/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=33612 CPUtime=59.77
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 10606 822 0 0 5972 5 0 0 25 0 1 0 60414931 34418688 7196 996147200 134512640 135095119 4294956304 18446744073709551615 134642970 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 8403 7196 378 142 0 7357 0
Current children cumulated CPU time (s) 59.77
Current children cumulated vsize (KiB) 33612

[startup+60.4016 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15894
/proc/meminfo: memFree=1585592/2055920 swapFree=4192812/4192956
[pid=15888] ppid=15886 vsize=29512 CPUtime=59.87
/proc/15888/stat : 15888 (pcs.small) R 15886 15888 15416 0 -1 4194304 10610 822 0 0 5982 5 0 0 25 0 1 0 60414931 30220288 6452 996147200 134512640 135095119 4294956304 18446744073709551615 10354133 0 0 4096 0 0 0 0 17 0 0 0
/proc/15888/statm: 7378 6452 378 142 0 6332 0
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (KiB) 29512

Child status: 0
Real time (s): 60.467
CPU time (s): 59.9439
CPU user time (s): 59.8799
CPU system time (s): 0.06399
CPU usage (%): 99.1349
Max. virtual memory (cumulated for all children) (KiB): 33612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 59.8799
system time used= 0.06399
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11435
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= 16
involuntary context switches= 1429

runsolver used 0.051992 second user time and 0.177972 second system time

The end

Launcher Data 

Begin job on node88 at 2009-07-16 10:38:17
IDJOB=2091834
IDBENCH=60131
IDSOLVER=734
FILE ID=node88/2091834-1247733497
PBS_JOBID= 9521655
Free space on /tmp= 66076 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/tightness0.1/normalized-rand-2-40-8-753-100-20_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091834-1247733497/watcher-2091834-1247733497 -o /tmp/evaluation-result-2091834-1247733497/solver-2091834-1247733497 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1687535815 HOME/instance-2091834-1247733497.xml

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

MD5SUM BENCH= b4c1cc8abc5da413e6416ff5267a7f65
RANDOM SEED=1687535815

node88.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		: 3000.222
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		: 3000.222
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:       1610912 kB
Buffers:         61236 kB
Cached:         265776 kB
SwapCached:          0 kB
Active:         137392 kB
Inactive:       223800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1610912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1888 kB
Writeback:           0 kB
Mapped:          54556 kB
Slab:            68908 kB
Committed_AS:   617588 kB
PageTables:       1956 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= 66072 MiB
End job on node88 at 2009-07-16 10:39:18