Trace number 2073486

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 102.579 103.566

DiagnosticValue
ASSIGNMENTS14731

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-15_ext.xml
MD5SUM9a27b31e5d394fb73a6ac3e5063f5218
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 benchmark18.3892
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints133
Maximum constraint arity18
Maximum domain size2
Number of constraints which are defined in extension133
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.01/0.04	c small-domain mode
0.01/0.05	c Seed is 340186347
0.01/0.05	c Constructing HOME/instance-2073486-1247711956.xml  with 133 constraints
0.66/0.79	c Solving 14731 backtracks 15 restarts
102.49/103.56	s UNSATISFIABLE
102.49/103.56	d ASSIGNMENTS 14731

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-2073486-1247711956/watcher-2073486-1247711956 -o /tmp/evaluation-result-2073486-1247711956/solver-2073486-1247711956 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 340186347 HOME/instance-2073486-1247711956.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: 2.00 2.02 2.05 4/81 16540
/proc/meminfo: memFree=1358416/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=18576 CPUtime=0
/proc/16540/stat : 16540 (runsolver) R 16538 16540 16386 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 58259775 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 213116316967 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16540/statm: 4644 284 249 26 0 2626 0

[startup+0.039514 s]
/proc/loadavg: 2.00 2.02 2.05 4/81 16540
/proc/meminfo: memFree=1358416/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5356 CPUtime=0.01
/proc/16540/stat : 16540 (pcssolve) S 16538 16540 16386 0 -1 4194304 367 2678 0 0 0 0 0 1 22 0 1 0 58259775 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 213116314436 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16540/statm: 1339 243 202 169 0 50 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5356

[startup+0.101549 s]
/proc/loadavg: 2.00 2.02 2.05 4/81 16540
/proc/meminfo: memFree=1358416/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5980 CPUtime=0.07
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 1053 3866 0 0 5 0 1 1 22 0 1 0 58259775 6123520 662 996147200 134512640 135095119 4294956304 18446744073709551615 134801705 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1495 662 361 142 0 449 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5980

[startup+0.301554 s]
/proc/loadavg: 2.00 2.02 2.05 4/81 16540
/proc/meminfo: memFree=1358416/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=9544 CPUtime=0.27
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 2101 3866 0 0 24 1 1 1 23 0 1 0 58259775 9773056 1710 996147200 134512640 135095119 4294956304 18446744073709551615 134681652 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 2386 1710 362 142 0 1340 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9544

[startup+0.701625 s]
/proc/loadavg: 2.00 2.02 2.05 4/81 16540
/proc/meminfo: memFree=1358416/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=14440 CPUtime=0.66
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4052 3866 0 0 62 2 1 1 25 0 1 0 58259775 14786560 2914 996147200 134512640 135095119 4294956304 18446744073709551615 134945073 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3610 2914 374 142 0 2564 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 14440

[startup+1.50178 s]
/proc/loadavg: 2.00 2.02 2.05 3/82 16546
/proc/meminfo: memFree=1348488/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=1.45
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 141 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 13760

[startup+3.10108 s]
/proc/loadavg: 2.00 2.02 2.05 3/82 16546
/proc/meminfo: memFree=1348488/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=3.04
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 300 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134927199 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 13760

[startup+6.30169 s]
/proc/loadavg: 2.00 2.02 2.05 3/82 16546
/proc/meminfo: memFree=1348424/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=6.21
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 617 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 13760

[startup+12.7019 s]
/proc/loadavg: 2.00 2.02 2.05 3/82 16546
/proc/meminfo: memFree=1348296/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=12.55
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 1251 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 3600963 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 13760

[startup+25.5013 s]
/proc/loadavg: 2.00 2.02 2.05 3/82 16546
/proc/meminfo: memFree=1348360/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=25.23
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 2519 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134918220 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 25.23
Current children cumulated vsize (KiB) 13760

[startup+51.1012 s]
/proc/loadavg: 2.00 2.01 2.05 3/82 16546
/proc/meminfo: memFree=1348424/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=50.58
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 5054 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134918227 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 50.58
Current children cumulated vsize (KiB) 13760

[startup+102.307 s]
/proc/loadavg: 2.00 2.01 2.04 3/82 16546
/proc/meminfo: memFree=1348360/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=101.3
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 10126 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134918166 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 101.3
Current children cumulated vsize (KiB) 13760

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

[startup+103.102 s]
/proc/loadavg: 2.00 2.01 2.04 3/82 16546
/proc/meminfo: memFree=1348360/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=102.09
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 10205 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134916474 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 102.09
Current children cumulated vsize (KiB) 13760

[startup+103.502 s]
/proc/loadavg: 2.00 2.01 2.04 3/82 16546
/proc/meminfo: memFree=1348360/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=13760 CPUtime=102.49
/proc/16540/stat : 16540 (pcs.small) R 16538 16540 16386 0 -1 4194304 4159 3866 0 0 10245 2 1 1 25 0 1 0 58259775 14090240 2791 996147200 134512640 135095119 4294956304 18446744073709551615 134927020 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 3440 2791 389 142 0 2394 0
Current children cumulated CPU time (s) 102.49
Current children cumulated vsize (KiB) 13760

Child status: 0
Real time (s): 103.566
CPU time (s): 102.579
CPU user time (s): 102.532
CPU system time (s): 0.046992
CPU usage (%): 99.0475
Max. virtual memory (cumulated for all children) (KiB): 14440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 102.532
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8028
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= 23
involuntary context switches= 4236

runsolver used 0.12598 second user time and 0.353946 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-16 04:39:16
IDJOB=2073486
IDBENCH=55983
IDSOLVER=734
FILE ID=node37/2073486-1247711956
PBS_JOBID= 9521431
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-15_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073486-1247711956/watcher-2073486-1247711956 -o /tmp/evaluation-result-2073486-1247711956/solver-2073486-1247711956 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 340186347 HOME/instance-2073486-1247711956.xml

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

MD5SUM BENCH= 9a27b31e5d394fb73a6ac3e5063f5218
RANDOM SEED=340186347

node37.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		: 3000.260
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		: 3000.260
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:       1358896 kB
Buffers:         83168 kB
Cached:         415680 kB
SwapCached:          0 kB
Active:         287616 kB
Inactive:       321624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1358896 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3760 kB
Writeback:           0 kB
Mapped:         130776 kB
Slab:            72880 kB
Committed_AS:   719644 kB
PageTables:       2004 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= 66392 MiB
End job on node37 at 2009-07-16 04:41:00