Trace number 2081218

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 13.142 13.271

DiagnosticValue
ASSIGNMENTS5631

General information on the benchmark

Namecsp/super-os/super-os-taillard-4/
normalized-super-os-taillard-4-3.xml
MD5SUM0f5cae853ceaabc1492b20d36f4c25cb
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 benchmark0.035993
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints160
Maximum constraint arity2
Maximum domain size270
Number of constraints which are defined in extension0
Number of constraints which are defined in intension160
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
0.17/0.21	c Seed is 1838250877
0.17/0.21	c Constructing HOME/instance-2081218-1247719436.xml  with 1024 constraints
0.17/0.21	c Solving 5631 backtracks 12 restarts
13.07/13.26	s UNSATISFIABLE
13.07/13.26	d ASSIGNMENTS 5631

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-2081218-1247719436/watcher-2081218-1247719436 -o /tmp/evaluation-result-2081218-1247719436/solver-2081218-1247719436 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1838250877 HOME/instance-2081218-1247719436.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: 2.15 2.03 2.01 4/82 17572
/proc/meminfo: memFree=1411016/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=5356 CPUtime=0
/proc/17572/stat : 17572 (pcssolve) R 17570 17572 16829 0 -1 4194304 265 0 0 0 0 0 0 0 20 0 1 0 59009577 5484544 233 996147200 4194304 4889804 548682068800 18446744073709551615 254195182224 0 0 4100 65536 0 0 0 17 1 0 0
/proc/17572/statm: 1339 233 194 169 0 50 0

[startup+0.076032 s]
/proc/loadavg: 2.15 2.03 2.01 4/82 17572
/proc/meminfo: memFree=1411016/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=5272 CPUtime=0.05
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 995 652 0 0 5 0 0 0 18 0 1 0 59009577 5398528 626 996147200 134512640 135215973 4294956304 18446744073709551615 134610892 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 1318 626 406 171 0 243 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5272

[startup+0.101332 s]
/proc/loadavg: 2.15 2.03 2.01 4/82 17572
/proc/meminfo: memFree=1411016/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=5272 CPUtime=0.07
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 996 652 0 0 7 0 0 0 18 0 1 0 59009577 5398528 627 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 1318 627 406 171 0 243 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5272

[startup+0.301347 s]
/proc/loadavg: 2.15 2.03 2.01 4/82 17572
/proc/meminfo: memFree=1411016/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=5400 CPUtime=0.27
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 1046 652 0 0 27 0 0 0 19 0 1 0 59009577 5529600 677 996147200 134512640 135215973 4294956304 18446744073709551615 134597665 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 1350 677 406 171 0 275 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5400

[startup+0.701376 s]
/proc/loadavg: 2.15 2.03 2.01 4/82 17572
/proc/meminfo: memFree=1411016/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=6132 CPUtime=0.67
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 1207 652 0 0 67 0 0 0 23 0 1 0 59009577 6279168 838 996147200 134512640 135215973 4294956304 18446744073709551615 134599861 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 1533 838 406 171 0 458 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6132

[startup+1.50143 s]
/proc/loadavg: 2.15 2.03 2.01 3/83 17577
/proc/meminfo: memFree=1408960/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=6908 CPUtime=1.47
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 1422 652 0 0 146 1 0 0 25 0 1 0 59009577 7073792 1020 996147200 134512640 135215973 4294956304 18446744073709551615 134532656 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 1727 1020 406 171 0 652 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 6908

[startup+3.10155 s]
/proc/loadavg: 2.15 2.03 2.01 3/83 17577
/proc/meminfo: memFree=1407616/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=8852 CPUtime=3.05
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 1937 652 0 0 304 1 0 0 25 0 1 0 59009577 9064448 1470 996147200 134512640 135215973 4294956304 18446744073709551615 134610626 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 2213 1470 406 171 0 1138 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 8852

[startup+6.30178 s]
/proc/loadavg: 2.14 2.03 2.01 3/83 17577
/proc/meminfo: memFree=1404032/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=12480 CPUtime=6.22
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 2923 652 0 0 621 1 0 0 25 0 1 0 59009577 12779520 2327 996147200 134512640 135215973 4294956304 18446744073709551615 134908123 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 3120 2327 406 171 0 2045 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 12480

[startup+12.7012 s]
/proc/loadavg: 2.13 2.03 2.01 3/83 17577
/proc/meminfo: memFree=1396352/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=20368 CPUtime=12.57
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 5061 652 0 0 1254 3 0 0 25 0 1 0 59009577 20856832 4175 996147200 134512640 135215973 4294956304 18446744073709551615 134648311 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 5092 4175 406 171 0 4017 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 20368

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

[startup+13.1013 s]
/proc/loadavg: 2.12 2.03 2.01 3/83 17577
/proc/meminfo: memFree=1395136/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=20752 CPUtime=12.97
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 5176 652 0 0 1294 3 0 0 25 0 1 0 59009577 21250048 4290 996147200 134512640 135215973 4294956304 18446744073709551615 134585409 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 5188 4290 406 171 0 4113 0
Current children cumulated CPU time (s) 12.97
Current children cumulated vsize (KiB) 20752

[startup+13.2063 s]
/proc/loadavg: 2.12 2.03 2.01 3/83 17577
/proc/meminfo: memFree=1395136/2055920 swapFree=4192812/4192956
[pid=17572] ppid=17570 vsize=20880 CPUtime=13.07
/proc/17572/stat : 17572 (pcs.big) R 17570 17572 16829 0 -1 4194304 5202 652 0 0 1304 3 0 0 25 0 1 0 59009577 21381120 4316 996147200 134512640 135215973 4294956304 18446744073709551615 134590047 0 0 4096 0 0 0 0 17 1 0 0
/proc/17572/statm: 5220 4316 406 171 0 4145 0
Current children cumulated CPU time (s) 13.07
Current children cumulated vsize (KiB) 20880

Child status: 0
Real time (s): 13.271
CPU time (s): 13.142
CPU user time (s): 13.105
CPU system time (s): 0.036994
CPU usage (%): 99.0279
Max. virtual memory (cumulated for all children) (KiB): 20880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.105
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5871
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= 19
involuntary context switches= 544

runsolver used 0.021996 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node34 at 2009-07-16 06:43:56
IDJOB=2081218
IDBENCH=57376
IDSOLVER=733
FILE ID=node34/2081218-1247719436
PBS_JOBID= 9521418
Free space on /tmp= 66308 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/super-os/super-os-taillard-4/normalized-super-os-taillard-4-3.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081218-1247719436/watcher-2081218-1247719436 -o /tmp/evaluation-result-2081218-1247719436/solver-2081218-1247719436 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1838250877 HOME/instance-2081218-1247719436.xml

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

MD5SUM BENCH= 0f5cae853ceaabc1492b20d36f4c25cb
RANDOM SEED=1838250877

node34.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		: 3000.232
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		: 3000.232
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:       1411496 kB
Buffers:        101084 kB
Cached:         318544 kB
SwapCached:          0 kB
Active:         168076 kB
Inactive:       380216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1411496 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2148 kB
Writeback:           0 kB
Mapped:         149052 kB
Slab:            81040 kB
Committed_AS:   698744 kB
PageTables:       2060 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= 66308 MiB
End job on node34 at 2009-07-16 06:44:09