Trace number 2091878

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 0.3.2SAT 1.82772 1.84391

DiagnosticValue
ASSIGNMENTS8023

General information on the benchmark

Namecsp/tightness0.1/
normalized-rand-2-40-8-753-100-68_ext.xml
MD5SUM10e0adc83b18972b4983a38d17834c76
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.52677
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints753
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension753
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.08/0.12	c Seed is 99570877
0.08/0.12	c Constructing HOME/instance-2091878-1247733547.xml  with 3048 constraints
0.08/0.12	c Solving 8023 backtracks 13 restarts
1.77/1.84	s SATISFIABLE
1.77/1.84	c V0=7, V1=2, V2=1, V3=5, V4=4, V5=2, V6=6, V7=2, V8=0, V9=2, V10=2, V11=1, V12=0, V13=5, V14=2, V15=1, V16=4, V17=3, V18=5, V19=5, V20=7, V21=4, V22=0, V23=6, V24=5, V25=4, V26=7, V27=7, V28=0, V29=3, V30=6, V31=4, V32=1, V33=1, V34=5, V35=7, V36=4, V37=6, V38=2, V39=5, 
1.77/1.84	v 7 2 1 5 4 2 6 2 0 2 2 1 0 5 2 1 4 3 5 5 7 4 0 6 5 4 7 7 0 3 6 4 1 1 5 7 4 6 2 5 
1.77/1.84	d ASSIGNMENTS 8023

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2091878-1247733547/watcher-2091878-1247733547 -o /tmp/evaluation-result-2091878-1247733547/solver-2091878-1247733547 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 99570877 HOME/instance-2091878-1247733547.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: 1.93 1.97 1.99 4/82 19216
/proc/meminfo: memFree=1525488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=5356 CPUtime=0
/proc/19216/stat : 19216 (pcssolve) R 19214 19216 18072 0 -1 4194304 347 649 0 0 0 0 0 0 16 0 1 0 60419306 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 4600096 0 0 4100 65536 0 0 0 17 1 0 0
/proc/19216/statm: 1339 243 202 169 0 50 0

[startup+0.06476 s]
/proc/loadavg: 1.93 1.97 1.99 4/82 19216
/proc/meminfo: memFree=1525488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=5080 CPUtime=0.05
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 999 822 0 0 5 0 0 0 18 0 1 0 60419306 5201920 608 996147200 134512640 135095119 4294956304 18446744073709551615 134643026 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1270 608 378 142 0 224 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5080

[startup+0.101764 s]
/proc/loadavg: 1.93 1.97 1.99 4/82 19216
/proc/meminfo: memFree=1525488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=5080 CPUtime=0.08
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 1000 822 0 0 8 0 0 0 18 0 1 0 60419306 5201920 609 996147200 134512640 135095119 4294956304 18446744073709551615 134636924 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1270 609 378 142 0 224 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5080

[startup+0.301806 s]
/proc/loadavg: 1.93 1.97 1.99 4/82 19216
/proc/meminfo: memFree=1525488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=5340 CPUtime=0.28
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 1064 822 0 0 28 0 0 0 20 0 1 0 60419306 5468160 640 996147200 134512640 135095119 4294956304 18446744073709551615 134642869 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1335 640 378 142 0 289 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5340

[startup+0.701888 s]
/proc/loadavg: 1.93 1.97 1.99 4/82 19216
/proc/meminfo: memFree=1525488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=5732 CPUtime=0.68
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 1205 822 0 0 68 0 0 0 23 0 1 0 60419306 5869568 748 996147200 134512640 135095119 4294956304 18446744073709551615 134838291 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1433 748 378 142 0 387 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5732

[startup+1.50105 s]
/proc/loadavg: 1.94 1.97 1.99 3/83 19222
/proc/meminfo: memFree=1523488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=6896 CPUtime=1.48
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 1581 822 0 0 147 1 0 0 25 0 1 0 60419306 7061504 994 996147200 134512640 135095119 4294956304 18446744073709551615 134554976 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1724 994 378 142 0 678 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 6896

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

[startup+1.70109 s]
/proc/loadavg: 1.94 1.97 1.99 3/83 19222
/proc/meminfo: memFree=1523488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=7408 CPUtime=1.67
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 1741 822 0 0 166 1 0 0 25 0 1 0 60419306 7585792 1025 996147200 134512640 135095119 4294956304 18446744073709551615 134606993 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1852 1025 378 142 0 806 0
Current children cumulated CPU time (s) 1.67
Current children cumulated vsize (KiB) 7408

[startup+1.80111 s]
/proc/loadavg: 1.94 1.97 1.99 3/83 19222
/proc/meminfo: memFree=1523488/2055920 swapFree=4192812/4192956
[pid=19216] ppid=19214 vsize=7536 CPUtime=1.77
/proc/19216/stat : 19216 (pcs.small) R 19214 19216 18072 0 -1 4194304 1767 822 0 0 176 1 0 0 25 0 1 0 60419306 7716864 1051 996147200 134512640 135095119 4294956304 18446744073709551615 134642964 0 0 4096 0 0 0 0 17 0 0 0
/proc/19216/statm: 1884 1051 378 142 0 838 0
Current children cumulated CPU time (s) 1.77
Current children cumulated vsize (KiB) 7536

Child status: 0
Real time (s): 1.84391
CPU time (s): 1.82772
CPU user time (s): 1.80972
CPU system time (s): 0.017997
CPU usage (%): 99.122
Max. virtual memory (cumulated for all children) (KiB): 7536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.80972
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2603
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= 21
involuntary context switches= 91

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node80 at 2009-07-16 10:39:07
IDJOB=2091878
IDBENCH=60161
IDSOLVER=734
FILE ID=node80/2091878-1247733547
PBS_JOBID= 9521523
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/tightness0.1/normalized-rand-2-40-8-753-100-68_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091878-1247733547/watcher-2091878-1247733547 -o /tmp/evaluation-result-2091878-1247733547/solver-2091878-1247733547 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 99570877 HOME/instance-2091878-1247733547.xml

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

MD5SUM BENCH= 10e0adc83b18972b4983a38d17834c76
RANDOM SEED=99570877

node80.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		: 3000.285
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		: 3000.285
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1525904 kB
Buffers:         82224 kB
Cached:         327748 kB
SwapCached:          0 kB
Active:         114396 kB
Inactive:       329864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1525904 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1848 kB
Writeback:           0 kB
Mapped:          54580 kB
Slab:            70920 kB
Committed_AS:   572768 kB
PageTables:       1876 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= 66320 MiB
End job on node80 at 2009-07-16 10:39:09