Trace number 2064520

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 52.642 52.904

DiagnosticValue
ASSIGNMENTS1480

General information on the benchmark

Namecsp/bddLarge/
normalized-bdd-21-2713-15-79-26_ext.xml
MD5SUMdd3717c3e5db8d2dc488b191a384f85b
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark30.3714
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints2713
Maximum constraint arity15
Maximum domain size2
Number of constraints which are defined in extension2713
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.18/0.23	c Seed is 1573252924
0.18/0.23	c Constructing HOME/instance-2064520-1247696137.xml  with 2713 constraints
0.18/0.23	c Solving 1480 backtracks 9 restarts
52.61/52.90	s UNSATISFIABLE
52.61/52.90	d ASSIGNMENTS 1480

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-2064520-1247696137/watcher-2064520-1247696137 -o /tmp/evaluation-result-2064520-1247696137/solver-2064520-1247696137 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1573252924 HOME/instance-2064520-1247696137.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: 1.99 2.00 1.72 4/73 10294
/proc/meminfo: memFree=1543496/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=18576 CPUtime=0
/proc/10294/stat : 10294 (runsolver) R 10292 10294 9659 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 56677066 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 250968861991 0 0 4096 24578 0 0 0 17 1 0 0
/proc/10294/statm: 4644 284 249 26 0 2626 0

[startup+0.0706979 s]
/proc/loadavg: 1.99 2.00 1.72 4/73 10294
/proc/meminfo: memFree=1543496/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=5184 CPUtime=0.04
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1014 1169 0 0 4 0 0 0 18 0 1 0 56677066 5308416 623 996147200 134512640 135095119 4294956304 18446744073709551615 134945067 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1296 623 375 142 0 250 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5184

[startup+0.101702 s]
/proc/loadavg: 1.99 2.00 1.72 4/73 10294
/proc/meminfo: memFree=1543496/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=5584 CPUtime=0.07
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1072 1169 0 0 7 0 0 0 18 0 1 0 56677066 5718016 681 996147200 134512640 135095119 4294956304 18446744073709551615 4159741804 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1396 681 378 142 0 350 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5584

[startup+0.301727 s]
/proc/loadavg: 1.99 2.00 1.72 4/73 10294
/proc/meminfo: memFree=1543496/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=0.28
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1636 1169 0 0 27 1 0 0 19 0 1 0 56677066 7880704 1245 996147200 134512640 135095119 4294956304 18446744073709551615 134918227 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1924 1245 389 142 0 878 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7696

[startup+0.701765 s]
/proc/loadavg: 1.99 2.00 1.72 4/73 10294
/proc/meminfo: memFree=1543496/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=0.67
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1636 1169 0 0 66 1 0 0 23 0 1 0 56677066 7880704 1245 996147200 134512640 135095119 4294956304 18446744073709551615 134910720 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1924 1245 389 142 0 878 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 7696

[startup+1.50184 s]
/proc/loadavg: 1.99 2.00 1.72 3/74 10300
/proc/meminfo: memFree=1539968/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=1.47
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1636 1169 0 0 146 1 0 0 25 0 1 0 56677066 7880704 1245 996147200 134512640 135095119 4294956304 18446744073709551615 134617174 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1924 1245 389 142 0 878 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7696

[startup+3.102 s]
/proc/loadavg: 1.99 2.00 1.72 3/74 10300
/proc/meminfo: memFree=1539840/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=3.05
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1637 1169 0 0 304 1 0 0 25 0 1 0 56677066 7880704 1246 996147200 134512640 135095119 4294956304 18446744073709551615 134927029 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1924 1246 389 142 0 878 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 7696

[startup+6.30131 s]
/proc/loadavg: 1.99 2.00 1.72 3/74 10300
/proc/meminfo: memFree=1539776/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=6.22
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1641 1169 0 0 621 1 0 0 25 0 1 0 56677066 7880704 1250 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1924 1250 389 142 0 878 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 7696

[startup+12.7029 s]
/proc/loadavg: 1.99 2.00 1.73 3/74 10300
/proc/meminfo: memFree=1539584/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=12.56
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1645 1169 0 0 1255 1 0 0 25 0 1 0 56677066 7880704 1254 996147200 134512640 135095119 4294956304 18446744073709551615 134918198 0 0 4096 0 0 0 0 17 1 0 0
/proc/10294/statm: 1924 1254 389 142 0 878 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 7696

[startup+25.5012 s]
/proc/loadavg: 1.99 2.00 1.73 3/74 10300
/proc/meminfo: memFree=1539328/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7696 CPUtime=25.23
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1658 1169 0 0 2522 1 0 0 25 0 1 0 56677066 7880704 1267 996147200 134512640 135095119 4294956304 18446744073709551615 134918211 0 0 4096 0 0 0 0 17 0 0 0
/proc/10294/statm: 1924 1267 389 142 0 878 0
Current children cumulated CPU time (s) 25.23
Current children cumulated vsize (KiB) 7696

[startup+51.1017 s]
/proc/loadavg: 1.99 2.00 1.73 3/74 10332
/proc/meminfo: memFree=1539336/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=8148 CPUtime=50.81
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1770 1169 0 0 5080 1 0 0 25 0 1 0 56677066 8343552 1346 996147200 134512640 135095119 4294956304 18446744073709551615 134927189 0 0 4096 0 0 0 0 17 0 0 0
/proc/10294/statm: 2037 1346 389 142 0 991 0
Current children cumulated CPU time (s) 50.81
Current children cumulated vsize (KiB) 8148

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

[startup+51.9017 s]
/proc/loadavg: 1.99 2.00 1.73 3/74 10332
/proc/meminfo: memFree=1539336/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=8148 CPUtime=51.61
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1771 1169 0 0 5160 1 0 0 25 0 1 0 56677066 8343552 1347 996147200 134512640 135095119 4294956304 18446744073709551615 134926968 0 0 4096 0 0 0 0 17 0 0 0
/proc/10294/statm: 2037 1347 389 142 0 991 0
Current children cumulated CPU time (s) 51.61
Current children cumulated vsize (KiB) 8148

[startup+52.7018 s]
/proc/loadavg: 1.99 2.00 1.73 3/74 10332
/proc/meminfo: memFree=1539336/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=8148 CPUtime=52.42
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1771 1169 0 0 5241 1 0 0 25 0 1 0 56677066 8343552 1347 996147200 134512640 135095119 4294956304 18446744073709551615 134918190 0 0 4096 0 0 0 0 17 0 0 0
/proc/10294/statm: 2037 1347 389 142 0 991 0
Current children cumulated CPU time (s) 52.42
Current children cumulated vsize (KiB) 8148

[startup+52.9019 s]
/proc/loadavg: 1.99 2.00 1.73 3/74 10332
/proc/meminfo: memFree=1539336/2055920 swapFree=4192812/4192956
[pid=10294] ppid=10292 vsize=7756 CPUtime=52.61
/proc/10294/stat : 10294 (pcs.small) R 10292 10294 9659 0 -1 4194304 1771 1169 0 0 5260 1 0 0 25 0 1 0 56677066 7942144 1296 996147200 134512640 135095119 4294956304 18446744073709551615 4159337007 0 0 4096 0 0 0 0 17 0 0 0
/proc/10294/statm: 1939 1296 389 142 0 893 0
Current children cumulated CPU time (s) 52.61
Current children cumulated vsize (KiB) 7756

Child status: 0
Real time (s): 52.904
CPU time (s): 52.642
CPU user time (s): 52.613
CPU system time (s): 0.028995
CPU usage (%): 99.5047
Max. virtual memory (cumulated for all children) (KiB): 8148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.613
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2943
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= 676

runsolver used 0.06199 second user time and 0.189971 second system time

The end

Launcher Data 

Begin job on node56 at 2009-07-16 00:15:38
IDJOB=2064520
IDBENCH=54161
IDSOLVER=733
FILE ID=node56/2064520-1247696137
PBS_JOBID= 9521200
Free space on /tmp= 103076 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/bddLarge/normalized-bdd-21-2713-15-79-26_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2064520-1247696137/watcher-2064520-1247696137 -o /tmp/evaluation-result-2064520-1247696137/solver-2064520-1247696137 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1573252924 HOME/instance-2064520-1247696137.xml

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

MD5SUM BENCH= dd3717c3e5db8d2dc488b191a384f85b
RANDOM SEED=1573252924

node56.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		: 3000.209
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		: 3000.209
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:       1543976 kB
Buffers:         74192 kB
Cached:         336868 kB
SwapCached:          0 kB
Active:         180596 kB
Inactive:       251192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1543976 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4548 kB
Writeback:           0 kB
Mapped:          31252 kB
Slab:            65380 kB
Committed_AS:   453476 kB
PageTables:       1816 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= 103076 MiB
End job on node56 at 2009-07-16 00:16:31