Trace number 2084508

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 0.3.2? 106 106.842

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel7-6.xml
MD5SUMae59fd265626922afec84e7ef93d360f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables191
Number of constraints2360
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2360
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.17/0.21	c Seed is 2101011760
0.17/0.21	c Constructing HOME/instance-2084508-1247724797.xml  with 2360 constraints
0.17/0.21	c Solving 1000001 backtracks 25 restarts
105.95/106.84	s UNKNOWN
105.95/106.84	c Too many backtracks
105.95/106.84	d ASSIGNMENTS 1000001

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: UNKNOWN

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2084508-1247724797/watcher-2084508-1247724797 -o /tmp/evaluation-result-2084508-1247724797/solver-2084508-1247724797 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2101011760 HOME/instance-2084508-1247724797.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: 1.92 1.98 1.99 4/72 14122
/proc/meminfo: memFree=896368/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=5356 CPUtime=0
/proc/14122/stat : 14122 (pcssolve) R 14120 14122 14085 0 -1 4194304 270 0 0 0 0 0 0 0 20 0 1 0 59542889 5484544 238 996147200 4194304 4889804 548682068800 18446744073709551615 4455062 0 0 4100 65536 0 0 0 17 1 0 0
/proc/14122/statm: 1339 238 198 169 0 50 0

[startup+0.106766 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 14122
/proc/meminfo: memFree=896368/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=4968 CPUtime=0.08
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 953 822 0 0 8 0 0 0 18 0 1 0 59542889 5087232 562 996147200 134512640 135095119 4294956304 18446744073709551615 134603971 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 1242 562 386 142 0 196 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4968

[startup+0.201776 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 14122
/proc/meminfo: memFree=896368/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=5100 CPUtime=0.17
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 998 822 0 0 17 0 0 0 18 0 1 0 59542889 5222400 607 996147200 134512640 135095119 4294956304 18446744073709551615 134582120 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 1275 607 386 142 0 229 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 5100

[startup+0.301794 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 14122
/proc/meminfo: memFree=896368/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=5488 CPUtime=0.27
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 1114 822 0 0 27 0 0 0 19 0 1 0 59542889 5619712 657 996147200 134512640 135095119 4294956304 18446744073709551615 134589551 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 1372 657 386 142 0 326 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5488

[startup+0.701859 s]
/proc/loadavg: 1.92 1.98 1.99 4/72 14122
/proc/meminfo: memFree=896368/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=6908 CPUtime=0.67
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 1586 822 0 0 67 0 0 0 23 0 1 0 59542889 7073792 999 996147200 134512640 135095119 4294956304 18446744073709551615 134589593 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 1727 999 386 142 0 681 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6908

[startup+1.502 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 14128
/proc/meminfo: memFree=892328/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=10772 CPUtime=1.47
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 2803 822 0 0 146 1 0 0 25 0 1 0 59542889 11030528 1701 996147200 134512640 135095119 4294956304 18446744073709551615 134842758 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 2693 1701 386 142 0 1647 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 10772

[startup+3.10126 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 14128
/proc/meminfo: memFree=888424/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=17612 CPUtime=3.05
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 4959 822 0 0 303 2 0 0 25 0 1 0 59542889 18034688 3087 996147200 134512640 135095119 4294956304 18446744073709551615 134842731 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 4403 3087 386 142 0 3357 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 17612

[startup+6.3018 s]
/proc/loadavg: 1.93 1.98 1.99 3/73 14128
/proc/meminfo: memFree=874216/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=31164 CPUtime=6.22
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 9186 822 0 0 619 3 0 0 25 0 1 0 59542889 31911936 5776 996147200 134512640 135095119 4294956304 18446744073709551615 134590458 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 7791 5776 386 142 0 6745 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 31164

[startup+12.7019 s]
/proc/loadavg: 1.93 1.98 1.99 3/73 14128
/proc/meminfo: memFree=851368/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=58664 CPUtime=12.57
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 17689 822 0 0 1250 7 0 0 25 0 1 0 59542889 60071936 11205 996147200 134512640 135095119 4294956304 18446744073709551615 4159351004 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 14666 11205 386 142 0 13620 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 58664

[startup+25.503 s]
/proc/loadavg: 1.95 1.98 1.99 3/73 14128
/proc/meminfo: memFree=806248/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=113404 CPUtime=25.28
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 34435 822 0 0 2512 16 0 0 25 0 1 0 59542889 116125696 21805 996147200 134512640 135095119 4294956304 18446744073709551615 134617012 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 28351 21805 386 142 0 27305 0
Current children cumulated CPU time (s) 25.28
Current children cumulated vsize (KiB) 113404

[startup+51.1013 s]
/proc/loadavg: 1.96 1.98 1.99 3/73 14128
/proc/meminfo: memFree=718440/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=190644 CPUtime=50.67
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 59606 822 0 0 5040 27 0 0 25 0 1 0 59542889 195219456 42879 996147200 134512640 135095119 4294956304 18446744073709551615 134842304 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 47661 42879 386 142 0 46615 0
Current children cumulated CPU time (s) 50.67
Current children cumulated vsize (KiB) 190644

[startup+102.302 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14128
/proc/meminfo: memFree=618920/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=270528 CPUtime=101.48
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 90090 822 0 0 10110 38 0 0 25 0 1 0 59542889 277020672 65170 996147200 134512640 135095119 4294956304 18446744073709551615 134576415 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 67632 65170 386 142 0 66586 0
Current children cumulated CPU time (s) 101.48
Current children cumulated vsize (KiB) 270528

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

[startup+102.407 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14128
/proc/meminfo: memFree=618920/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=270656 CPUtime=101.58
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 90148 822 0 0 10120 38 0 0 25 0 1 0 59542889 277151744 65228 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 67664 65228 386 142 0 66618 0
Current children cumulated CPU time (s) 101.58
Current children cumulated vsize (KiB) 270656

[startup+104.001 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14128
/proc/meminfo: memFree=616296/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=273088 CPUtime=103.17
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 91059 822 0 0 10278 39 0 0 25 0 1 0 59542889 279642112 66139 996147200 134512640 135095119 4294956304 18446744073709551615 134617070 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 68272 66139 386 142 0 67226 0
Current children cumulated CPU time (s) 103.17
Current children cumulated vsize (KiB) 273088

[startup+105.601 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14128
/proc/meminfo: memFree=610856/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=275392 CPUtime=104.75
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 91965 822 0 0 10436 39 0 0 25 0 1 0 59542889 282001408 67045 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 68848 67045 386 142 0 67802 0
Current children cumulated CPU time (s) 104.75
Current children cumulated vsize (KiB) 275392

[startup+106.403 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14128
/proc/meminfo: memFree=610856/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=177336 CPUtime=105.55
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 92089 822 0 0 10514 41 0 0 25 0 1 0 59542889 181592064 43688 996147200 134512640 135095119 4294956304 18446744073709551615 7823475 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 44334 43688 386 142 0 43288 0
Current children cumulated CPU time (s) 105.55
Current children cumulated vsize (KiB) 177336

[startup+106.807 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14128
/proc/meminfo: memFree=703976/2055920 swapFree=4192812/4192956
[pid=14122] ppid=14120 vsize=177336 CPUtime=105.95
/proc/14122/stat : 14122 (pcs.small) R 14120 14122 14085 0 -1 4194304 92089 822 0 0 10554 41 0 0 25 0 1 0 59542889 181592064 43688 996147200 134512640 135095119 4294956304 18446744073709551615 7823475 0 0 4096 0 0 0 0 17 1 0 0
/proc/14122/statm: 44334 43688 386 142 0 43288 0
Current children cumulated CPU time (s) 105.95
Current children cumulated vsize (KiB) 177336

Child status: 0
Real time (s): 106.842
CPU time (s): 106
CPU user time (s): 105.547
CPU system time (s): 0.452931
CPU usage (%): 99.2117
Max. virtual memory (cumulated for all children) (KiB): 275648

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 105.547
system time used= 0.452931
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 92913
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= 2333

runsolver used 0.081987 second user time and 0.331949 second system time

The end

Launcher Data 

Begin job on node57 at 2009-07-16 08:13:17
IDJOB=2084508
IDBENCH=58086
IDSOLVER=734
FILE ID=node57/2084508-1247724797
PBS_JOBID= 9521541
Free space on /tmp= 66356 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel7-6.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084508-1247724797/watcher-2084508-1247724797 -o /tmp/evaluation-result-2084508-1247724797/solver-2084508-1247724797 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2101011760 HOME/instance-2084508-1247724797.xml

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

MD5SUM BENCH= ae59fd265626922afec84e7ef93d360f
RANDOM SEED=2101011760

node57.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		: 3000.261
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		: 3000.261
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:        896848 kB
Buffers:         86084 kB
Cached:         707884 kB
SwapCached:          0 kB
Active:         484740 kB
Inactive:       601848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        896848 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2280 kB
Writeback:           0 kB
Mapped:         304144 kB
Slab:            57516 kB
Committed_AS:   784520 kB
PageTables:       2284 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= 66356 MiB
End job on node57 at 2009-07-16 08:15:04