Trace number 2065246

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 0.3.2UNSAT 10.1935 10.3984

DiagnosticValue
ASSIGNMENTS131635

General information on the benchmark

Namecsp/schurrLemma/
normalized-lemma-24-3.xml
MD5SUM016bffd63bb8f844a4aee4df8a9d12cd
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 benchmark0.090985
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints132
Maximum constraint arity3
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension132
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.02	c Seed is 720892099
0.00/0.02	c Constructing HOME/instance-2065246-1247703502.xml  with 1072 constraints
0.00/0.03	c Solving 131635 backtracks 20 restarts
10.08/10.39	s UNSATISFIABLE
10.08/10.39	d ASSIGNMENTS 131635

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-2065246-1247703502/watcher-2065246-1247703502 -o /tmp/evaluation-result-2065246-1247703502/solver-2065246-1247703502 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 720892099 HOME/instance-2065246-1247703502.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 2.14 2.00 4/82 9246
/proc/meminfo: memFree=1109360/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=18576 CPUtime=0
/proc/9246/stat : 9246 (runsolver) R 9244 9246 8554 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 57417210 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 252429528359 0 0 4096 24578 0 0 0 17 1 0 0
/proc/9246/statm: 4644 284 249 26 0 2626 0

[startup+0.072646 s]
/proc/loadavg: 2.05 2.14 2.00 4/82 9246
/proc/meminfo: memFree=1109360/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=4656 CPUtime=0.04
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 892 810 0 0 4 0 0 0 22 0 1 0 57417210 4767744 501 996147200 134512640 135095119 4294956304 18446744073709551615 134555270 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 1164 501 387 142 0 118 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4656

[startup+0.101648 s]
/proc/loadavg: 2.05 2.14 2.00 4/82 9246
/proc/meminfo: memFree=1109360/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=4656 CPUtime=0.07
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 900 810 0 0 7 0 0 0 22 0 1 0 57417210 4767744 509 996147200 134512640 135095119 4294956304 18446744073709551615 134883078 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 1164 509 387 142 0 118 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4656

[startup+0.301668 s]
/proc/loadavg: 2.05 2.14 2.00 4/82 9246
/proc/meminfo: memFree=1109360/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=5180 CPUtime=0.27
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 1036 810 0 0 27 0 0 0 24 0 1 0 57417210 5304320 612 996147200 134512640 135095119 4294956304 18446744073709551615 134848873 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 1295 612 387 142 0 249 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5180

[startup+0.701709 s]
/proc/loadavg: 2.05 2.14 2.00 4/82 9246
/proc/meminfo: memFree=1109360/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=6080 CPUtime=0.67
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 1293 810 0 0 67 0 0 0 25 0 1 0 57417210 6225920 804 996147200 134512640 135095119 4294956304 18446744073709551615 134642982 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 1520 804 387 142 0 474 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6080

[startup+1.50179 s]
/proc/loadavg: 2.05 2.14 2.00 4/83 9252
/proc/meminfo: memFree=1088872/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=7628 CPUtime=1.46
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 1768 810 0 0 146 0 0 0 25 0 1 0 57417210 7811072 1150 996147200 134512640 135095119 4294956304 18446744073709551615 134617071 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 1907 1150 387 142 0 861 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7628

[startup+3.10195 s]
/proc/loadavg: 2.05 2.14 2.00 4/83 9252
/proc/meminfo: memFree=1003048/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=10852 CPUtime=2.91
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 2736 810 0 0 290 1 0 0 25 0 1 0 57417210 11112448 1861 996147200 134512640 135095119 4294956304 18446744073709551615 134583657 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 2713 1861 387 142 0 1667 0
Current children cumulated CPU time (s) 2.91
Current children cumulated vsize (KiB) 10852

[startup+6.30227 s]
/proc/loadavg: 2.12 2.15 2.00 3/83 9252
/proc/meminfo: memFree=995752/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=17304 CPUtime=6.1
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 4671 810 0 0 608 2 0 0 25 0 1 0 57417210 17719296 3283 996147200 134512640 135095119 4294956304 18446744073709551615 134617205 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 4326 3283 387 142 0 3280 0
Current children cumulated CPU time (s) 6.1
Current children cumulated vsize (KiB) 17304

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

[startup+7.90143 s]
/proc/loadavg: 2.11 2.15 2.00 3/83 9252
/proc/meminfo: memFree=993128/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=19224 CPUtime=7.68
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 5306 810 0 0 766 2 0 0 25 0 1 0 57417210 19685376 3918 996147200 134512640 135095119 4294956304 18446744073709551615 134842974 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 4806 3918 387 142 0 3760 0
Current children cumulated CPU time (s) 7.68
Current children cumulated vsize (KiB) 19224

[startup+9.50159 s]
/proc/loadavg: 2.11 2.15 2.00 3/83 9252
/proc/meminfo: memFree=991400/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=21300 CPUtime=9.29
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 5996 810 0 0 926 3 0 0 25 0 1 0 57417210 21811200 4608 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 5325 4608 387 142 0 4279 0
Current children cumulated CPU time (s) 9.29
Current children cumulated vsize (KiB) 21300

[startup+9.90663 s]
/proc/loadavg: 2.11 2.15 2.00 3/83 9252
/proc/meminfo: memFree=989416/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=21940 CPUtime=9.69
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 6174 810 0 0 966 3 0 0 25 0 1 0 57417210 22466560 4786 996147200 134512640 135095119 4294956304 18446744073709551615 10129492 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 5485 4786 387 142 0 4439 0
Current children cumulated CPU time (s) 9.69
Current children cumulated vsize (KiB) 21940

[startup+10.3017 s]
/proc/loadavg: 2.11 2.15 2.00 3/83 9252
/proc/meminfo: memFree=989416/2055920 swapFree=4192812/4192956
[pid=9246] ppid=9244 vsize=29724 CPUtime=10.08
/proc/9246/stat : 9246 (pcs.small) R 9244 9246 8554 0 -1 4194304 8153 810 0 0 1004 4 0 0 25 0 1 0 57417210 30437376 5740 996147200 134512640 135095119 4294956304 18446744073709551615 134617071 0 0 4096 0 0 0 0 17 0 0 0
/proc/9246/statm: 7431 5740 387 142 0 6385 0
Current children cumulated CPU time (s) 10.08
Current children cumulated vsize (KiB) 29724

Child status: 0
Real time (s): 10.3984
CPU time (s): 10.1935
CPU user time (s): 10.1425
CPU system time (s): 0.050992
CPU usage (%): 98.029
Max. virtual memory (cumulated for all children) (KiB): 29724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.1425
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8968
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= 158

runsolver used 0.011998 second user time and 0.032994 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-16 02:18:22
IDJOB=2065246
IDBENCH=54343
IDSOLVER=733
FILE ID=node12/2065246-1247703502
PBS_JOBID= 9521284
Free space on /tmp= 66272 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/schurrLemma/normalized-lemma-24-3.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065246-1247703502/watcher-2065246-1247703502 -o /tmp/evaluation-result-2065246-1247703502/solver-2065246-1247703502 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 720892099 HOME/instance-2065246-1247703502.xml

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

MD5SUM BENCH= 016bffd63bb8f844a4aee4df8a9d12cd
RANDOM SEED=720892099

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:       1109840 kB
Buffers:         78648 kB
Cached:         741360 kB
SwapCached:        140 kB
Active:         210960 kB
Inactive:       646356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1109840 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3536 kB
Writeback:           0 kB
Mapped:          57580 kB
Slab:            73876 kB
Committed_AS:   543792 kB
PageTables:       1868 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= 66268 MiB
End job on node12 at 2009-07-16 02:18:32