Trace number 2074322

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 60.5618 61.1391

DiagnosticValue
ASSIGNMENTS52611

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-15-15-2.xml
MD5SUMd253e49a50bf50fec79c621cae233451
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.40033
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints11025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11025
Global constraints used (with number of constraints)

Solver Data 

0.00/0.03	c small-domain mode
0.01/0.05	c Seed is 1523576956
0.01/0.05	c Constructing HOME/instance-2074322-1247712346.xml  with 193725 constraints
1.26/1.32	c Solving 52611 backtracks 18 restarts
60.50/61.13	s UNSATISFIABLE
60.50/61.13	d ASSIGNMENTS 52611

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-2074322-1247712346/watcher-2074322-1247712346 -o /tmp/evaluation-result-2074322-1247712346/solver-2074322-1247712346 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1523576956 HOME/instance-2074322-1247712346.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: 2.05 2.07 2.02 4/82 12990
/proc/meminfo: memFree=1470392/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=5356 CPUtime=0
/proc/12990/stat : 12990 (pcssolve) R 12988 12990 10627 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58301655 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12990/statm: 1339 241 200 169 0 50 0
[pid=12991] ppid=12990 vsize=3544 CPUtime=0
/proc/12991/stat : 12991 (fgrep) R 12990 12990 10627 0 -1 4194304 111 0 0 0 0 0 0 0 22 0 1 0 58301656 3629056 78 996147200 4194304 4274172 548682068976 18446744073709551615 252429958468 0 0 4096 0 0 0 0 17 1 0 0
/proc/12991/statm: 886 78 61 19 0 10 0
[pid=12992] ppid=12990 vsize=5356 CPUtime=0
/proc/12992/stat : 12992 (pcssolve) R 12990 12990 10627 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58301656 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12992/statm: 1339 241 200 169 0 50 0

[startup+0.031662 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12990
/proc/meminfo: memFree=1470392/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=580 CPUtime=0.01
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 376 822 0 0 0 0 1 0 24 0 1 0 58301655 593920 2 996147200 0 0 4294956699 18446744073709551615 252429528359 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 145 2 0 0 0 1 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 580

[startup+0.101657 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12990
/proc/meminfo: memFree=1470392/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=6244 CPUtime=0.07
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 1340 822 0 0 6 0 1 0 18 0 1 0 58301655 6393856 851 996147200 134512640 135095119 4294956304 18446744073709551615 4159166750 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 1561 851 374 142 0 515 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6244

[startup+0.301679 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12990
/proc/meminfo: memFree=1470392/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=11880 CPUtime=0.27
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 3016 822 0 0 25 1 1 0 19 0 1 0 58301655 12165120 2042 996147200 134512640 135095119 4294956304 18446744073709551615 4158853399 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 2970 2042 374 142 0 1924 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 11880

[startup+0.701714 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12990
/proc/meminfo: memFree=1470392/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=21408 CPUtime=0.67
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 6177 822 0 0 63 3 1 0 23 0 1 0 58301655 21921792 4372 996147200 134512640 135095119 4294956304 18446744073709551615 134840289 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 5352 4372 374 142 0 4306 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 21408

[startup+1.5018 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12996
/proc/meminfo: memFree=1447728/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=40924 CPUtime=1.46
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 12589 822 0 0 139 6 1 0 25 0 1 0 58301655 41906176 8793 996147200 134512640 135095119 4294956304 18446744073709551615 134578074 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 10231 8793 386 142 0 9185 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 40924

[startup+3.10196 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12996
/proc/meminfo: memFree=1432496/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=44936 CPUtime=3.05
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 62230 822 0 0 280 24 1 0 25 0 1 0 58301655 46014464 9754 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 11234 9754 387 142 0 10188 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 44936

[startup+6.30127 s]
/proc/loadavg: 2.04 2.07 2.02 3/83 12996
/proc/meminfo: memFree=1432048/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=45196 CPUtime=6.21
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 287386 822 0 0 522 98 1 0 25 0 1 0 58301655 46280704 9850 996147200 134512640 135095119 4294956304 18446744073709551615 134642952 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 11299 9850 387 142 0 10253 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 45196

[startup+12.7019 s]
/proc/loadavg: 2.04 2.06 2.02 3/83 12996
/proc/meminfo: memFree=1431024/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=45984 CPUtime=12.56
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 871579 822 0 0 976 279 1 0 25 0 1 0 58301655 47087616 10096 996147200 134512640 135095119 4294956304 18446744073709551615 10128816 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 11496 10096 387 142 0 10450 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 45984

[startup+25.5012 s]
/proc/loadavg: 2.03 2.06 2.02 3/83 12996
/proc/meminfo: memFree=1429360/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=47408 CPUtime=25.24
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 1862084 822 0 0 1932 591 1 0 25 0 1 0 58301655 48545792 10523 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 11852 10523 387 142 0 10806 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 47408

[startup+51.1017 s]
/proc/loadavg: 2.02 2.05 2.02 3/83 12996
/proc/meminfo: memFree=1425648/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=50356 CPUtime=50.59
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 4131162 822 0 0 3762 1296 1 0 25 0 1 0 58301655 51564544 11484 996147200 134512640 135095119 4294956304 18446744073709551615 134593540 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 12589 11484 387 142 0 11543 0
Current children cumulated CPU time (s) 50.59
Current children cumulated vsize (KiB) 50356

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

[startup+57.5014 s]
/proc/loadavg: 2.02 2.05 2.02 3/83 12996
/proc/meminfo: memFree=1424624/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=51000 CPUtime=56.93
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 4658881 822 0 0 4230 1462 1 0 25 0 1 0 58301655 52224000 11707 996147200 134512640 135095119 4294956304 18446744073709551615 134570638 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 12750 11707 387 142 0 11704 0
Current children cumulated CPU time (s) 56.93
Current children cumulated vsize (KiB) 51000

[startup+59.1025 s]
/proc/loadavg: 2.02 2.05 2.02 3/83 12996
/proc/meminfo: memFree=1424560/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=51132 CPUtime=58.51
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 4777135 822 0 0 4351 1499 1 0 25 0 1 0 58301655 52359168 11758 996147200 134512640 135095119 4294956304 18446744073709551615 134882960 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 12783 11758 387 142 0 11737 0
Current children cumulated CPU time (s) 58.51
Current children cumulated vsize (KiB) 51132

[startup+59.9016 s]
/proc/loadavg: 2.02 2.05 2.02 3/83 12996
/proc/meminfo: memFree=1424432/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=51260 CPUtime=59.31
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 4833890 822 0 0 4413 1517 1 0 25 0 1 0 58301655 52490240 11783 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 12815 11783 387 142 0 11769 0
Current children cumulated CPU time (s) 59.31
Current children cumulated vsize (KiB) 51260

[startup+60.7017 s]
/proc/loadavg: 2.02 2.05 2.02 3/83 12996
/proc/meminfo: memFree=1424304/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=51388 CPUtime=60.1
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 4894646 822 0 0 4474 1535 1 0 25 0 1 0 58301655 52621312 11810 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 12847 11810 387 142 0 11801 0
Current children cumulated CPU time (s) 60.1
Current children cumulated vsize (KiB) 51388

[startup+61.1017 s]
/proc/loadavg: 2.02 2.05 2.02 3/83 12996
/proc/meminfo: memFree=1424304/2055920 swapFree=4192812/4192956
[pid=12990] ppid=12988 vsize=43192 CPUtime=60.5
/proc/12990/stat : 12990 (pcs.small) R 12988 12990 10627 0 -1 4194304 4908508 822 0 0 4510 1539 1 0 25 0 1 0 58301655 44228608 9890 996147200 134512640 135095119 4294956304 18446744073709551615 10125310 0 0 4096 0 0 0 0 17 1 0 0
/proc/12990/statm: 10798 9890 387 142 0 9752 0
Current children cumulated CPU time (s) 60.5
Current children cumulated vsize (KiB) 43192

Child status: 0
Real time (s): 61.1391
CPU time (s): 60.5618
CPU user time (s): 45.1481
CPU system time (s): 15.4137
CPU usage (%): 99.0557
Max. virtual memory (cumulated for all children) (KiB): 51632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 45.1481
system time used= 15.4137
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4909332
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= 2476

runsolver used 0.05999 second user time and 0.225965 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-16 04:45:46
IDJOB=2074322
IDBENCH=56088
IDSOLVER=734
FILE ID=node12/2074322-1247712346
PBS_JOBID= 9521380
Free space on /tmp= 66268 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-15-15-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074322-1247712346/watcher-2074322-1247712346 -o /tmp/evaluation-result-2074322-1247712346/solver-2074322-1247712346 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1523576956 HOME/instance-2074322-1247712346.xml

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

MD5SUM BENCH= d253e49a50bf50fec79c621cae233451
RANDOM SEED=1523576956

node12.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		: 3000.240
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		: 3000.240
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:       1470872 kB
Buffers:         77192 kB
Cached:         372968 kB
SwapCached:          0 kB
Active:         129468 kB
Inactive:       374016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1470872 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3808 kB
Writeback:           0 kB
Mapped:          73712 kB
Slab:            66620 kB
Committed_AS:   579232 kB
PageTables:       1892 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= 66264 MiB
End job on node12 at 2009-07-16 04:46:48