Trace number 2079756

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 171.048 171.97

DiagnosticValue
ASSIGNMENTS51078

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-18_ext.xml
MD5SUMd0723849d67084a75f9aabd36744eddc
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 benchmark11.2583
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints55
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension55
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data

0.00/0.02	c small-domain mode
0.00/0.03	c Seed is 39695648
0.00/0.03	c Constructing HOME/instance-2079756-1247717008.xml  with 55 constraints
0.26/0.39	c Solving 51078 backtracks 18 restarts
170.96/171.96	s UNSATISFIABLE
170.96/171.96	d ASSIGNMENTS 51078

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-2079756-1247717008/watcher-2079756-1247717008 -o /tmp/evaluation-result-2079756-1247717008/solver-2079756-1247717008 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 39695648 HOME/instance-2079756-1247717008.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: 2.18 2.07 2.02 4/82 21943
/proc/meminfo: memFree=1307808/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=18576 CPUtime=0
/proc/21943/stat : 21943 (runsolver) R 21941 21943 21166 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 58765412 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 255372881191 0 0 4096 24578 0 0 0 17 1 0 0
/proc/21943/statm: 4644 284 249 26 0 2626 0

[startup+0.061818 s]
/proc/loadavg: 2.18 2.07 2.02 4/82 21943
/proc/meminfo: memFree=1307808/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=4808 CPUtime=0.03
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 883 822 0 0 3 0 0 0 21 0 1 0 58765412 4923392 492 996147200 134512640 135095119 4294956304 18446744073709551615 10182238 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 1202 492 375 142 0 156 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4808

[startup+0.101821 s]
/proc/loadavg: 2.18 2.07 2.02 4/82 21943
/proc/meminfo: memFree=1307808/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=5340 CPUtime=0.07
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 949 822 0 0 7 0 0 0 21 0 1 0 58765412 5468160 558 996147200 134512640 135095119 4294956304 18446744073709551615 134681671 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 1335 558 375 142 0 289 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5340

[startup+0.301843 s]
/proc/loadavg: 2.18 2.07 2.02 4/82 21943
/proc/meminfo: memFree=1307808/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=8308 CPUtime=0.26
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 1337 822 0 0 26 0 0 0 23 0 1 0 58765412 8507392 946 996147200 134512640 135095119 4294956304 18446744073709551615 134769910 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2077 946 375 142 0 1031 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 8308

[startup+0.701889 s]
/proc/loadavg: 2.18 2.07 2.02 4/82 21943
/proc/meminfo: memFree=1307808/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=9668 CPUtime=0.66
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 1521 822 0 0 66 0 0 0 25 0 1 0 58765412 9900032 1130 996147200 134512640 135095119 4294956304 18446744073709551615 134918268 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2417 1130 389 142 0 1371 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 9668

[startup+1.50197 s]
/proc/loadavg: 2.18 2.07 2.02 3/83 21949
/proc/meminfo: memFree=1304728/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=9668 CPUtime=1.46
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 1525 822 0 0 146 0 0 0 25 0 1 0 58765412 9900032 1134 996147200 134512640 135095119 4294956304 18446744073709551615 134927023 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2417 1134 389 142 0 1371 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 9668

[startup+3.10114 s]
/proc/loadavg: 2.18 2.07 2.02 3/83 21949
/proc/meminfo: memFree=1304536/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=9800 CPUtime=3.05
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 1556 822 0 0 305 0 0 0 25 0 1 0 58765412 10035200 1165 996147200 134512640 135095119 4294956304 18446744073709551615 134927144 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2450 1165 389 142 0 1404 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 9800

[startup+6.30247 s]
/proc/loadavg: 2.17 2.07 2.01 3/83 21949
/proc/meminfo: memFree=1304216/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=9928 CPUtime=6.25
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 1630 822 0 0 624 1 0 0 25 0 1 0 58765412 10166272 1206 996147200 134512640 135095119 4294956304 18446744073709551615 134589675 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2482 1206 389 142 0 1436 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 9928

[startup+12.7011 s]
/proc/loadavg: 2.16 2.07 2.01 3/83 21949
/proc/meminfo: memFree=1303704/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=10316 CPUtime=12.62
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 1807 822 0 0 1261 1 0 0 25 0 1 0 58765412 10563584 1318 996147200 134512640 135095119 4294956304 18446744073709551615 134918203 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2579 1318 389 142 0 1533 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 10316

[startup+25.5015 s]
/proc/loadavg: 2.20 2.08 2.02 3/83 21949
/proc/meminfo: memFree=1303000/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=10956 CPUtime=25.36
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 2186 822 0 0 2535 1 0 0 25 0 1 0 58765412 11218944 1535 996147200 134512640 135095119 4294956304 18446744073709551615 134926990 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 2739 1535 389 142 0 1693 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 10956

[startup+51.1012 s]
/proc/loadavg: 2.13 2.07 2.02 3/83 21949
/proc/meminfo: memFree=1301336/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=12236 CPUtime=50.86
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 2944 822 0 0 5084 2 0 0 25 0 1 0 58765412 12529664 1971 996147200 134512640 135095119 4294956304 18446744073709551615 134918253 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 3059 1971 389 142 0 2013 0
Current children cumulated CPU time (s) 50.86
Current children cumulated vsize (KiB) 12236

[startup+102.306 s]
/proc/loadavg: 2.11 2.07 2.02 3/83 21949
/proc/meminfo: memFree=1297624/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=15580 CPUtime=101.85
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 4481 822 0 0 10183 2 0 0 25 0 1 0 58765412 15953920 2866 996147200 134512640 135095119 4294956304 18446744073709551615 134918253 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 3895 2866 389 142 0 2849 0
Current children cumulated CPU time (s) 101.85
Current children cumulated vsize (KiB) 15580

[startup+162.302 s]
/proc/loadavg: 2.09 2.07 2.02 3/74 22023
/proc/meminfo: memFree=1314472/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=23064 CPUtime=161.44
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 6898 822 0 0 16139 5 0 0 25 0 1 0 58765412 23617536 3968 996147200 134512640 135095119 4294956304 18446744073709551615 134918241 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 5766 3968 389 142 0 4720 0
Current children cumulated CPU time (s) 161.44
Current children cumulated vsize (KiB) 23064

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

[startup+166.301 s]
/proc/loadavg: 2.08 2.07 2.02 3/74 22023
/proc/meminfo: memFree=1314024/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=23192 CPUtime=165.4
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 6976 822 0 0 16535 5 0 0 25 0 1 0 58765412 23748608 4046 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 5798 4046 389 142 0 4752 0
Current children cumulated CPU time (s) 165.4
Current children cumulated vsize (KiB) 23192

[startup+169.502 s]
/proc/loadavg: 2.08 2.07 2.01 3/74 22023
/proc/meminfo: memFree=1313768/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=23320 CPUtime=168.58
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 7037 822 0 0 16853 5 0 0 25 0 1 0 58765412 23879680 4107 996147200 134512640 135095119 4294956304 18446744073709551615 134918253 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 5830 4107 389 142 0 4784 0
Current children cumulated CPU time (s) 168.58
Current children cumulated vsize (KiB) 23320

[startup+171.102 s]
/proc/loadavg: 2.08 2.07 2.01 3/74 22023
/proc/meminfo: memFree=1313640/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=23452 CPUtime=170.17
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 7065 822 0 0 17012 5 0 0 25 0 1 0 58765412 24014848 4135 996147200 134512640 135095119 4294956304 18446744073709551615 134918190 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 5863 4135 389 142 0 4817 0
Current children cumulated CPU time (s) 170.17
Current children cumulated vsize (KiB) 23452

[startup+171.502 s]
/proc/loadavg: 2.08 2.07 2.01 3/74 22023
/proc/meminfo: memFree=1313512/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=23452 CPUtime=170.57
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 7072 822 0 0 17052 5 0 0 25 0 1 0 58765412 24014848 4142 996147200 134512640 135095119 4294956304 18446744073709551615 134918190 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 5863 4142 389 142 0 4817 0
Current children cumulated CPU time (s) 170.57
Current children cumulated vsize (KiB) 23452

[startup+171.902 s]
/proc/loadavg: 2.08 2.07 2.01 3/74 22023
/proc/meminfo: memFree=1313512/2055912 swapFree=4192812/4192956
[pid=21943] ppid=21941 vsize=23452 CPUtime=170.96
/proc/21943/stat : 21943 (pcs.small) R 21941 21943 21166 0 -1 4194304 7080 822 0 0 17091 5 0 0 25 0 1 0 58765412 24014848 4150 996147200 134512640 135095119 4294956304 18446744073709551615 134918196 0 0 4096 0 0 0 0 17 0 0 0
/proc/21943/statm: 5863 4150 389 142 0 4817 0
Current children cumulated CPU time (s) 170.96
Current children cumulated vsize (KiB) 23452

Child status: 0
Real time (s): 171.97
CPU time (s): 171.048
CPU user time (s): 170.986
CPU system time (s): 0.06199
CPU usage (%): 99.4636
Max. virtual memory (cumulated for all children) (KiB): 27032

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 170.986
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7905
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= 22
involuntary context switches= 5036

runsolver used 0.161975 second user time and 0.470928 second system time

The end

Launcher Data

Begin job on node78 at 2009-07-16 06:03:29
IDJOB=2079756
IDBENCH=56947
IDSOLVER=734
FILE ID=node78/2079756-1247717008
PBS_JOBID= 9521479
Free space on /tmp= 126768 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-18_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2079756-1247717008/watcher-2079756-1247717008 -o /tmp/evaluation-result-2079756-1247717008/solver-2079756-1247717008 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 39695648 HOME/instance-2079756-1247717008.xml

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

MD5SUM BENCH= d0723849d67084a75f9aabd36744eddc
RANDOM SEED=39695648

node78.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		: 3000.232
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		: 3000.232
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:      2055912 kB
MemFree:       1308224 kB
Buffers:         86176 kB
Cached:         549284 kB
SwapCached:          0 kB
Active:         164008 kB
Inactive:       512396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:       1308224 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2844 kB
Writeback:           0 kB
Mapped:          61332 kB
Slab:            56108 kB
Committed_AS:   656036 kB
PageTables:       1936 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126768 MiB
End job on node78 at 2009-07-16 06:06:21