Trace number 2074377

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 40.5058 40.896

DiagnosticValue
ASSIGNMENTS149924

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-8-8-2.xml
MD5SUMc749bc7e0566d10272437da124749429
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 benchmark0.924859
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints784
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension784
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 210729052
0.00/0.02	c Constructing HOME/instance-2074377-1247712375.xml  with 14224 constraints
0.08/0.10	c Solving 149924 backtracks 20 restarts
40.40/40.89	s UNSATISFIABLE
40.40/40.89	d ASSIGNMENTS 149924

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-2074377-1247712375/watcher-2074377-1247712375 -o /tmp/evaluation-result-2074377-1247712375/solver-2074377-1247712375 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 210729052 HOME/instance-2074377-1247712375.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: 2.07 2.06 2.02 4/81 15143
/proc/meminfo: memFree=1491016/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=18576 CPUtime=0
/proc/15143/stat : 15143 (runsolver) R 15141 15143 14306 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 57929202 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 209135922471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15143/statm: 4644 284 249 26 0 2626 0

[startup+0.0217171 s]
/proc/loadavg: 2.07 2.06 2.02 4/81 15143
/proc/meminfo: memFree=1491016/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=4288 CPUtime=0
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 544 822 0 0 0 0 0 0 25 0 1 0 57929202 4390912 165 996147200 134512640 135095119 4294956304 18446744073709551615 11961614 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 1072 165 140 142 0 14 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4288

[startup+0.101727 s]
/proc/loadavg: 2.07 2.06 2.02 4/81 15143
/proc/meminfo: memFree=1491016/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=6504 CPUtime=0.08
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 1433 822 0 0 8 0 0 0 25 0 1 0 57929202 6660096 944 996147200 134512640 135095119 4294956304 18446744073709551615 134706689 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 1626 944 374 142 0 580 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6504

[startup+0.301747 s]
/proc/loadavg: 2.07 2.06 2.02 4/81 15143
/proc/meminfo: memFree=1491016/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=7304 CPUtime=0.27
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 1650 822 0 0 27 0 0 0 25 0 1 0 57929202 7479296 1161 996147200 134512640 135095119 4294956304 18446744073709551615 134839205 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 1826 1161 387 142 0 780 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7304

[startup+0.701783 s]
/proc/loadavg: 2.07 2.06 2.02 4/81 15143
/proc/meminfo: memFree=1491016/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=7508 CPUtime=0.67
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 1697 822 0 0 67 0 0 0 25 0 1 0 57929202 7688192 1208 996147200 134512640 135095119 4294956304 18446744073709551615 134555238 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 1877 1208 387 142 0 831 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 7508

[startup+1.50185 s]
/proc/loadavg: 2.07 2.06 2.02 3/82 15149
/proc/meminfo: memFree=1487168/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=8516 CPUtime=1.47
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 1963 822 0 0 146 1 0 0 25 0 1 0 57929202 8720384 1345 996147200 134512640 135095119 4294956304 18446744073709551615 134883043 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 2129 1345 387 142 0 1083 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8516

[startup+3.102 s]
/proc/loadavg: 2.06 2.06 2.02 3/82 15149
/proc/meminfo: memFree=1486336/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=9452 CPUtime=3.06
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 2253 822 0 0 305 1 0 0 25 0 1 0 57929202 9678848 1635 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 2363 1635 387 142 0 1317 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 9452

[startup+6.30228 s]
/proc/loadavg: 2.06 2.06 2.02 3/82 15149
/proc/meminfo: memFree=1483776/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=12148 CPUtime=6.22
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 3059 822 0 0 621 1 0 0 25 0 1 0 57929202 12439552 2151 996147200 134512640 135095119 4294956304 18446744073709551615 134577298 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 3037 2151 387 142 0 1991 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 12148

[startup+12.7018 s]
/proc/loadavg: 2.05 2.06 2.02 3/82 15149
/proc/meminfo: memFree=1480000/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=15320 CPUtime=12.56
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 4054 822 0 0 1254 2 0 0 25 0 1 0 57929202 15687680 3146 996147200 134512640 135095119 4294956304 18446744073709551615 134642903 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 3830 3146 387 142 0 2784 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 15320

[startup+25.502 s]
/proc/loadavg: 2.04 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1472464/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=23312 CPUtime=25.25
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 6443 822 0 0 2521 4 0 0 25 0 1 0 57929202 23871488 4989 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 5828 4989 387 142 0 4782 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 23312

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

[startup+31.9076 s]
/proc/loadavg: 2.04 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1468816/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=26468 CPUtime=31.58
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 7410 822 0 0 3154 4 0 0 25 0 1 0 57929202 27103232 5891 996147200 134512640 135095119 4294956304 18446744073709551615 134590379 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 6617 5891 387 142 0 5571 0
Current children cumulated CPU time (s) 31.58
Current children cumulated vsize (KiB) 26468

[startup+35.1018 s]
/proc/loadavg: 2.04 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1463760/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=35052 CPUtime=34.75
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 9671 822 0 0 3470 5 0 0 25 0 1 0 57929202 35893248 7127 996147200 134512640 135095119 4294956304 18446744073709551615 134599367 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 8763 7127 387 142 0 7717 0
Current children cumulated CPU time (s) 34.75
Current children cumulated vsize (KiB) 35052

[startup+38.3011 s]
/proc/loadavg: 2.03 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1463440/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=35052 CPUtime=37.93
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 9775 822 0 0 3787 6 0 0 25 0 1 0 57929202 35893248 7231 996147200 134512640 135095119 4294956304 18446744073709551615 134590360 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 8763 7231 387 142 0 7717 0
Current children cumulated CPU time (s) 37.93
Current children cumulated vsize (KiB) 35052

[startup+39.9013 s]
/proc/loadavg: 2.03 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1463184/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=35052 CPUtime=39.51
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 9828 822 0 0 3945 6 0 0 25 0 1 0 57929202 35893248 7284 996147200 134512640 135095119 4294956304 18446744073709551615 134643066 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 8763 7284 387 142 0 7717 0
Current children cumulated CPU time (s) 39.51
Current children cumulated vsize (KiB) 35052

[startup+40.3013 s]
/proc/loadavg: 2.03 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1463184/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=35052 CPUtime=39.91
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 9842 822 0 0 3985 6 0 0 25 0 1 0 57929202 35893248 7298 996147200 134512640 135095119 4294956304 18446744073709551615 134617311 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 8763 7298 387 142 0 7717 0
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (KiB) 35052

[startup+40.7073 s]
/proc/loadavg: 2.03 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1463056/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=35052 CPUtime=40.31
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 9854 822 0 0 4025 6 0 0 25 0 1 0 57929202 35893248 7310 996147200 134512640 135095119 4294956304 18446744073709551615 134840378 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 8763 7310 387 142 0 7717 0
Current children cumulated CPU time (s) 40.31
Current children cumulated vsize (KiB) 35052

[startup+40.8023 s]
/proc/loadavg: 2.03 2.05 2.01 3/82 15149
/proc/meminfo: memFree=1463056/2055920 swapFree=4192812/4192956
[pid=15143] ppid=15141 vsize=26976 CPUtime=40.4
/proc/15143/stat : 15143 (pcs.small) R 15141 15143 14306 0 -1 4194304 9864 822 0 0 4034 6 0 0 25 0 1 0 57929202 27623424 6037 996147200 134512640 135095119 4294956304 18446744073709551615 12388181 0 0 4096 0 0 0 0 17 1 0 0
/proc/15143/statm: 6744 6037 387 142 0 5698 0
Current children cumulated CPU time (s) 40.4
Current children cumulated vsize (KiB) 26976

Child status: 0
Real time (s): 40.896
CPU time (s): 40.5058
CPU user time (s): 40.4339
CPU system time (s): 0.071989
CPU usage (%): 99.0461
Max. virtual memory (cumulated for all children) (KiB): 39152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.4339
system time used= 0.071989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10688
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= 20
involuntary context switches= 1658

runsolver used 0.053991 second user time and 0.140978 second system time

The end

Launcher Data 

Begin job on node41 at 2009-07-16 04:46:15
IDJOB=2074377
IDBENCH=56093
IDSOLVER=734
FILE ID=node41/2074377-1247712375
PBS_JOBID= 9521473
Free space on /tmp= 65792 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-8-8-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074377-1247712375/watcher-2074377-1247712375 -o /tmp/evaluation-result-2074377-1247712375/solver-2074377-1247712375 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 210729052 HOME/instance-2074377-1247712375.xml

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

MD5SUM BENCH= c749bc7e0566d10272437da124749429
RANDOM SEED=210729052

node41.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		: 3000.212
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	: 5931.00
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		: 3000.212
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:       1491496 kB
Buffers:         70584 kB
Cached:         296888 kB
SwapCached:          0 kB
Active:         183904 kB
Inactive:       294136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1491496 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1840 kB
Writeback:           0 kB
Mapped:         130952 kB
Slab:            71384 kB
Committed_AS:   632404 kB
PageTables:       1972 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= 65792 MiB
End job on node41 at 2009-07-16 04:46:56