Trace number 2081989

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 28.1127 28.3796

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/rlfapScens/
normalized-scen8.xml
MD5SUMd7cebb3d1eb044a9483fdd1ea1c74095
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.556914
Satisfiable
(Un)Satisfiability was proved
Number of variables916
Number of constraints5744
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5744
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 942330442
0.00/0.02	c Constructing HOME/instance-2081989-1247720701.xml  with 16774 constraints
0.38/0.41	c Solving 0 backtracks
28.01/28.36	s UNSATISFIABLE
28.01/28.36	d ASSIGNMENTS 0

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-2081989-1247720701/watcher-2081989-1247720701 -o /tmp/evaluation-result-2081989-1247720701/solver-2081989-1247720701 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 942330442 HOME/instance-2081989-1247720701.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 2.00 2.00 4/81 13814
/proc/meminfo: memFree=1312408/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=18576 CPUtime=0
/proc/13814/stat : 13814 (runsolver) R 13812 13814 12276 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59136209 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 264907582759 0 0 4096 24578 0 0 0 17 1 0 0
/proc/13814/statm: 4644 284 249 26 0 2626 0

[startup+0.080906 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 13814
/proc/meminfo: memFree=1312408/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=8336 CPUtime=0.05
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 1710 662 0 0 5 0 0 0 23 0 1 0 59136209 8536064 1341 996147200 134512640 135215973 4294956304 18446744073709551615 134583613 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 2084 1341 385 171 0 1009 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8336

[startup+0.102906 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 13814
/proc/meminfo: memFree=1312408/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=8468 CPUtime=0.07
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 1770 662 0 0 7 0 0 0 23 0 1 0 59136209 8671232 1401 996147200 134512640 135215973 4294956304 18446744073709551615 134796285 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 2117 1401 385 171 0 1042 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 8468

[startup+0.301935 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 13814
/proc/meminfo: memFree=1312408/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=11452 CPUtime=0.27
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 2684 662 0 0 26 1 0 0 25 0 1 0 59136209 11726848 1987 996147200 134512640 135215973 4294956304 18446744073709551615 7483015 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 2863 1987 385 171 0 1788 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 11452

[startup+0.701988 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 13814
/proc/meminfo: memFree=1312408/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=14528 CPUtime=0.68
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 3732 662 0 0 66 2 0 0 25 0 1 0 59136209 14876672 2784 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 3632 2784 401 171 0 2557 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 14528

[startup+1.5011 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1300816/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=20416 CPUtime=1.47
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 5172 662 0 0 144 3 0 0 25 0 1 0 59136209 20905984 4224 996147200 134512640 135215973 4294956304 18446744073709551615 134585756 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 5104 4224 401 171 0 4029 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 20416

[startup+3.10133 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1290768/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=32900 CPUtime=3.05
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 8338 662 0 0 300 5 0 0 25 0 1 0 59136209 33689600 7337 996147200 134512640 135215973 4294956304 18446744073709551615 134583589 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 8225 7337 401 171 0 7150 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 32900

[startup+6.30181 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1266384/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=71372 CPUtime=6.22
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 18088 662 0 0 612 10 0 0 25 0 1 0 59136209 73084928 16773 996147200 134512640 135215973 4294956304 18446744073709551615 4158960050 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 17843 16773 401 171 0 16768 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 71372

[startup+12.7017 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1246288/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=71372 CPUtime=12.56
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 18121 662 0 0 1246 10 0 0 25 0 1 0 59136209 73084928 16806 996147200 134512640 135215973 4294956304 18446744073709551615 134599873 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 17843 16806 401 171 0 16768 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 71372

[startup+25.5026 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1238160/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=77972 CPUtime=25.25
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 19862 662 0 0 2514 11 0 0 25 0 1 0 59136209 79843328 18547 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 19493 18547 401 171 0 18418 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 77972

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

[startup+27.1018 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1236816/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=80216 CPUtime=26.83
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 20420 662 0 0 2672 11 0 0 25 0 1 0 59136209 82141184 19105 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 20054 19105 401 171 0 18979 0
Current children cumulated CPU time (s) 26.83
Current children cumulated vsize (KiB) 80216

[startup+27.9019 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1235216/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=81272 CPUtime=27.62
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 20701 662 0 0 2751 11 0 0 25 0 1 0 59136209 83222528 19386 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 20318 19386 401 171 0 19243 0
Current children cumulated CPU time (s) 27.62
Current children cumulated vsize (KiB) 81272

[startup+28.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13819
/proc/meminfo: memFree=1235216/2055920 swapFree=4192812/4192956
[pid=13814] ppid=13812 vsize=78540 CPUtime=28.01
/proc/13814/stat : 13814 (pcs.big) R 13812 13814 12276 0 -1 4194304 20831 662 0 0 2790 11 0 0 25 0 1 0 59136209 80424960 18826 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/13814/statm: 19635 18826 403 171 0 18560 0
Current children cumulated CPU time (s) 28.01
Current children cumulated vsize (KiB) 78540

Child status: 0
Real time (s): 28.3796
CPU time (s): 28.1127
CPU user time (s): 27.9787
CPU system time (s): 0.133979
CPU usage (%): 99.0597
Max. virtual memory (cumulated for all children) (KiB): 81668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.9787
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21495
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= 1164

runsolver used 0.036994 second user time and 0.089986 second system time

The end

Launcher Data 

Begin job on node30 at 2009-07-16 07:05:01
IDJOB=2081989
IDBENCH=57517
IDSOLVER=734
FILE ID=node30/2081989-1247720701
PBS_JOBID= 9521469
Free space on /tmp= 66284 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/rlfapScens/normalized-scen8.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081989-1247720701/watcher-2081989-1247720701 -o /tmp/evaluation-result-2081989-1247720701/solver-2081989-1247720701 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 942330442 HOME/instance-2081989-1247720701.xml

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

MD5SUM BENCH= d7cebb3d1eb044a9483fdd1ea1c74095
RANDOM SEED=942330442

node30.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		: 3000.277
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		: 3000.277
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:       1312888 kB
Buffers:         78220 kB
Cached:         369832 kB
SwapCached:          0 kB
Active:         257048 kB
Inactive:       402128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1312888 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2440 kB
Writeback:           0 kB
Mapped:         231536 kB
Slab:            68700 kB
Committed_AS:   804776 kB
PageTables:       2164 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= 66284 MiB
End job on node30 at 2009-07-16 07:05:29