Trace number 2081406

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 231.426 233.633

DiagnosticValue
ASSIGNMENTS93869

General information on the benchmark

Namecsp/queenAttacking/
normalized-queenAttacking-4.xml
MD5SUM92a6a2d917f39136912f84efac51745f
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 benchmark0.053991
Satisfiable
(Un)Satisfiability was proved
Number of variables17
Number of constraints126
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension126
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has operations which may create big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 691146216
0.00/0.02	c Constructing HOME/instance-2081406-1247719556.xml 
0.00/0.03	c deduced all_different(V2,V5,V7,V11,V13,V0)
0.00/0.03	c deduced all_different(V3,V5,V7,V9,V11,V13,V15,V1)
0.00/0.03	c deduced all_different(V1,V6,V8,V10,V12,V14,V16,V4)
0.00/0.03	c  with 633 constraints
0.00/0.03	c Solving 93869 backtracks 19 restarts
231.38/233.60	s UNSATISFIABLE
231.38/233.60	d ASSIGNMENTS 93869

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-2081406-1247719556/watcher-2081406-1247719556 -o /tmp/evaluation-result-2081406-1247719556/solver-2081406-1247719556 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 691146216 HOME/instance-2081406-1247719556.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: 1.96 1.97 1.99 4/75 18975
/proc/meminfo: memFree=1499264/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=18576 CPUtime=0
/proc/18975/stat : 18975 (runsolver) R 18973 18975 17311 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 59018318 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 209560595751 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18975/statm: 4644 284 249 26 0 2626 0

[startup+0.0992559 s]
/proc/loadavg: 1.96 1.97 1.99 4/75 18975
/proc/meminfo: memFree=1499264/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=4920 CPUtime=0.08
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 954 815 0 0 8 0 0 0 25 0 1 0 59018318 5038080 563 996147200 134512640 135215973 4294956304 18446744073709551615 134589296 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 1230 563 422 171 0 155 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4920

[startup+0.101253 s]
/proc/loadavg: 1.96 1.97 1.99 4/75 18975
/proc/meminfo: memFree=1499264/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=4920 CPUtime=0.08
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 956 815 0 0 8 0 0 0 25 0 1 0 59018318 5038080 565 996147200 134512640 135215973 4294956304 18446744073709551615 134685407 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 1230 565 422 171 0 155 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4920

[startup+0.301289 s]
/proc/loadavg: 1.96 1.97 1.99 4/75 18975
/proc/meminfo: memFree=1499264/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=4920 CPUtime=0.28
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 976 815 0 0 28 0 0 0 25 0 1 0 59018318 5038080 585 996147200 134512640 135215973 4294956304 18446744073709551615 134953047 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 1230 585 422 171 0 155 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 4920

[startup+0.701357 s]
/proc/loadavg: 1.96 1.97 1.99 4/75 18975
/proc/meminfo: memFree=1499264/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=5316 CPUtime=0.67
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 1048 815 0 0 67 0 0 0 25 0 1 0 59018318 5443584 657 996147200 134512640 135215973 4294956304 18446744073709551615 4158960083 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 1329 657 422 171 0 254 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5316

[startup+1.5015 s]
/proc/loadavg: 1.96 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1497656/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=5836 CPUtime=1.46
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 1188 815 0 0 146 0 0 0 25 0 1 0 59018318 5976064 797 996147200 134512640 135215973 4294956304 18446744073709551615 134640928 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 1459 797 422 171 0 384 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 5836

[startup+3.10177 s]
/proc/loadavg: 1.96 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1496120/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=7152 CPUtime=3.05
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 1511 815 0 0 305 0 0 0 25 0 1 0 59018318 7323648 1120 996147200 134512640 135215973 4294956304 18446744073709551615 134532976 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 1788 1120 422 171 0 713 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 7152

[startup+6.30131 s]
/proc/loadavg: 1.96 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1492152/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=9620 CPUtime=6.22
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 2143 815 0 0 622 0 0 0 25 0 1 0 59018318 9850880 1719 996147200 134512640 135215973 4294956304 18446744073709551615 134598436 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 2405 1719 422 171 0 1330 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 9620

[startup+12.7014 s]
/proc/loadavg: 1.97 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1484984/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=14808 CPUtime=12.56
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 3494 815 0 0 1255 1 0 0 25 0 1 0 59018318 15163392 3037 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 3702 3037 422 171 0 2627 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 14808

[startup+25.5016 s]
/proc/loadavg: 1.97 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1470840/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=24668 CPUtime=25.24
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 6072 815 0 0 2521 3 0 0 25 0 1 0 59018318 25260032 5485 996147200 134512640 135215973 4294956304 18446744073709551615 134599858 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 6167 5485 422 171 0 5092 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 24668

[startup+51.1019 s]
/proc/loadavg: 1.98 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1440248/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=43796 CPUtime=50.6
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 11023 815 0 0 5053 7 0 0 25 0 1 0 59018318 44847104 10178 996147200 134512640 135215973 4294956304 18446744073709551615 134583707 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 10949 10178 422 171 0 9874 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 43796

[startup+102.307 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1384056/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=89752 CPUtime=101.32
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 23052 815 0 0 10117 15 0 0 25 0 1 0 59018318 91906048 21180 996147200 134512640 135215973 4294956304 18446744073709551615 4158960650 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 22438 21180 422 171 0 21363 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 89752

[startup+162.303 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1323704/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=138340 CPUtime=160.75
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 35694 815 0 0 16052 23 0 0 25 0 1 0 59018318 141660160 33309 996147200 134512640 135215973 4294956304 18446744073709551615 134532667 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 34585 33309 422 171 0 33510 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 138340

[startup+222.302 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1269496/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=182720 CPUtime=220.19
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 47276 815 0 0 21988 31 0 0 25 0 1 0 59018318 187105280 43866 996147200 134512640 135215973 4294956304 18446744073709551615 134585694 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 45680 43866 422 171 0 44605 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 182720

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

[startup+223.901 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1268408/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=183888 CPUtime=221.77
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 47586 815 0 0 22146 31 0 0 25 0 1 0 59018318 188301312 44176 996147200 134512640 135215973 4294956304 18446744073709551615 134616954 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 45972 44176 422 171 0 44897 0
Current children cumulated CPU time (s) 221.77
Current children cumulated vsize (KiB) 183888

[startup+230.301 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1262520/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=188200 CPUtime=228.1
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 48745 815 0 0 22778 32 0 0 25 0 1 0 59018318 192716800 45335 996147200 134512640 135215973 4294956304 18446744073709551615 134600390 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 47050 45335 422 171 0 45975 0
Current children cumulated CPU time (s) 228.1
Current children cumulated vsize (KiB) 188200

[startup+231.902 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1261432/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=189252 CPUtime=229.69
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 49030 815 0 0 22937 32 0 0 25 0 1 0 59018318 193794048 45620 996147200 134512640 135215973 4294956304 18446744073709551615 134907920 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 47313 45620 422 171 0 46238 0
Current children cumulated CPU time (s) 229.69
Current children cumulated vsize (KiB) 189252

[startup+232.702 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1260472/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=189904 CPUtime=230.49
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 49169 815 0 0 23016 33 0 0 25 0 1 0 59018318 194461696 45759 996147200 134512640 135215973 4294956304 18446744073709551615 134532930 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 47476 45759 422 171 0 46401 0
Current children cumulated CPU time (s) 230.49
Current children cumulated vsize (KiB) 189904

[startup+233.103 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1259384/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=190168 CPUtime=230.89
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 49245 815 0 0 23056 33 0 0 25 0 1 0 59018318 194732032 45835 996147200 134512640 135215973 4294956304 18446744073709551615 134648275 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 47542 45835 422 171 0 46467 0
Current children cumulated CPU time (s) 230.89
Current children cumulated vsize (KiB) 190168

[startup+233.503 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1259384/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=186200 CPUtime=231.28
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 49279 815 0 0 23095 33 0 0 25 0 1 0 59018318 190668800 45130 996147200 134512640 135215973 4294956304 18446744073709551615 134532667 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 46550 45130 422 171 0 45475 0
Current children cumulated CPU time (s) 231.28
Current children cumulated vsize (KiB) 186200

[startup+233.603 s]
/proc/loadavg: 1.99 1.97 1.99 3/76 18981
/proc/meminfo: memFree=1259384/2055920 swapFree=4192812/4192956
[pid=18975] ppid=18973 vsize=177792 CPUtime=231.38
/proc/18975/stat : 18975 (pcs.big) R 18973 18975 17311 0 -1 4194304 49279 815 0 0 23105 33 0 0 25 0 1 0 59018318 182059008 43788 996147200 134512640 135215973 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/18975/statm: 44448 43788 422 171 0 43373 0
Current children cumulated CPU time (s) 231.38
Current children cumulated vsize (KiB) 177792

Child status: 0
Real time (s): 233.633
CPU time (s): 231.426
CPU user time (s): 231.051
CPU system time (s): 0.374943
CPU usage (%): 99.0553
Max. virtual memory (cumulated for all children) (KiB): 190168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 231.051
system time used= 0.374943
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 50096
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= 5108

runsolver used 0.297954 second user time and 0.771882 second system time

The end

Launcher Data 

Begin job on node68 at 2009-07-16 06:45:56
IDJOB=2081406
IDBENCH=57395
IDSOLVER=734
FILE ID=node68/2081406-1247719556
PBS_JOBID= 9521429
Free space on /tmp= 66420 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/queenAttacking/normalized-queenAttacking-4.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081406-1247719556/watcher-2081406-1247719556 -o /tmp/evaluation-result-2081406-1247719556/solver-2081406-1247719556 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 691146216 HOME/instance-2081406-1247719556.xml

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

MD5SUM BENCH= 92a6a2d917f39136912f84efac51745f
RANDOM SEED=691146216

node68.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		: 3000.258
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		: 3000.258
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:       1499744 kB
Buffers:         71812 kB
Cached:         266896 kB
SwapCached:          0 kB
Active:         224416 kB
Inactive:       263432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1499744 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1740 kB
Writeback:           0 kB
Mapped:         160936 kB
Slab:            53008 kB
Committed_AS:   726076 kB
PageTables:       2204 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66416 MiB
End job on node68 at 2009-07-16 06:49:50