Trace number 2064938

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 13.031 13.1646

DiagnosticValue
ASSIGNMENTS1555

General information on the benchmark

Namecsp/fischer/
normalized-fischer-4-6-fair.xml
MD5SUMc0da7c4326183468bb45a178aa7f580c
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.51147
Satisfiable
(Un)Satisfiability was proved
Number of variables6371
Number of constraints6016
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension6016
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 720892099
0.17/0.21	c Constructing HOME/instance-2064938-1247703115.xml  with 8216 constraints
0.27/0.36	c Solving 1555 backtracks 9 restarts
12.95/13.16	s UNSATISFIABLE
12.95/13.16	d ASSIGNMENTS 1555

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-2064938-1247703115/watcher-2064938-1247703115 -o /tmp/evaluation-result-2064938-1247703115/solver-2064938-1247703115 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 720892099 HOME/instance-2064938-1247703115.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: 1.92 1.98 1.89 4/81 13491
/proc/meminfo: memFree=1452112/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=5356 CPUtime=0
/proc/13491/stat : 13491 (pcssolve) R 13489 13491 12833 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 57378426 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 269757246111 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13491/statm: 1339 241 200 169 0 50 0
[pid=13492] ppid=13491 vsize=3544 CPUtime=0
/proc/13492/stat : 13492 (fgrep) R 13491 13491 12833 0 -1 4194304 91 0 0 0 0 0 0 0 22 0 1 0 57378427 3629056 59 996147200 4194304 4274172 548682068976 18446744073709551615 269756859938 0 0 4096 0 0 0 0 17 1 0 0
/proc/13492/statm: 886 59 43 19 0 10 0

[startup+0.0903621 s]
/proc/loadavg: 1.92 1.98 1.89 4/81 13491
/proc/meminfo: memFree=1452112/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=6548 CPUtime=0.06
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 1343 657 0 0 6 0 0 0 18 0 1 0 57378426 6705152 870 996147200 134512640 135215973 4294956304 18446744073709551615 134730954 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 1637 870 385 171 0 562 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 6548

[startup+0.102361 s]
/proc/loadavg: 1.92 1.98 1.89 4/81 13491
/proc/meminfo: memFree=1452112/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=6676 CPUtime=0.07
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 1359 657 0 0 7 0 0 0 18 0 1 0 57378426 6836224 886 996147200 134512640 135215973 4294956304 18446744073709551615 134761780 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 1669 886 385 171 0 594 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6676

[startup+0.302389 s]
/proc/loadavg: 1.92 1.98 1.89 4/81 13491
/proc/meminfo: memFree=1452112/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=7884 CPUtime=0.27
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 1734 657 0 0 27 0 0 0 19 0 1 0 57378426 8073216 1228 996147200 134512640 135215973 4294956304 18446744073709551615 12312598 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 1971 1228 389 171 0 896 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7884

[startup+0.702451 s]
/proc/loadavg: 1.92 1.98 1.89 4/81 13491
/proc/meminfo: memFree=1452112/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=10776 CPUtime=0.67
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 2751 657 0 0 66 1 0 0 23 0 1 0 57378426 11034624 1946 996147200 134512640 135215973 4294956304 18446744073709551615 134600006 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 2694 1946 409 171 0 1619 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 10776

[startup+1.50155 s]
/proc/loadavg: 1.92 1.98 1.89 3/82 13496
/proc/meminfo: memFree=1444872/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=12348 CPUtime=1.46
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 3294 657 0 0 145 1 0 0 25 0 1 0 57378426 12644352 2280 996147200 134512640 135215973 4294956304 18446744073709551615 134640948 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 3087 2280 409 171 0 2012 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 12348

[startup+3.10176 s]
/proc/loadavg: 1.92 1.98 1.89 3/82 13496
/proc/meminfo: memFree=1444168/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=13356 CPUtime=3.05
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 3532 657 0 0 304 1 0 0 25 0 1 0 57378426 13676544 2518 996147200 134512640 135215973 4294956304 18446744073709551615 134587409 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 3339 2518 409 171 0 2264 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 13356

[startup+6.30118 s]
/proc/loadavg: 1.93 1.98 1.89 4/82 13496
/proc/meminfo: memFree=1441160/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=16716 CPUtime=6.22
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 4392 657 0 0 620 2 0 0 25 0 1 0 57378426 17117184 3345 996147200 134512640 135215973 4294956304 18446744073709551615 134601611 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 4179 3345 409 171 0 3104 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 16716

[startup+12.701 s]
/proc/loadavg: 1.93 1.98 1.89 3/82 13496
/proc/meminfo: memFree=1432840/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=24876 CPUtime=12.55
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 6522 657 0 0 1253 2 0 0 25 0 1 0 57378426 25473024 5410 996147200 134512640 135215973 4294956304 18446744073709551615 134640905 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 6219 5410 409 171 0 5144 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 24876

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

[startup+13.1011 s]
/proc/loadavg: 1.93 1.98 1.89 3/82 13496
/proc/meminfo: memFree=1431368/2055920 swapFree=4192812/4192956
[pid=13491] ppid=13489 vsize=25352 CPUtime=12.95
/proc/13491/stat : 13491 (pcs.big) R 13489 13491 12833 0 -1 4194304 6641 657 0 0 1293 2 0 0 25 0 1 0 57378426 25960448 5529 996147200 134512640 135215973 4294956304 18446744073709551615 134583256 0 0 4096 0 0 0 0 17 1 0 0
/proc/13491/statm: 6338 5529 409 171 0 5263 0
Current children cumulated CPU time (s) 12.95
Current children cumulated vsize (KiB) 25352

Child status: 0
Real time (s): 13.1646
CPU time (s): 13.031
CPU user time (s): 12.994
CPU system time (s): 0.036994
CPU usage (%): 98.9851
Max. virtual memory (cumulated for all children) (KiB): 25352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.994
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= 7310
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= 563

runsolver used 0.015997 second user time and 0.053991 second system time

The end

Launcher Data 

Begin job on node13 at 2009-07-16 02:11:55
IDJOB=2064938
IDBENCH=54222
IDSOLVER=733
FILE ID=node13/2064938-1247703115
PBS_JOBID= 9521283
Free space on /tmp= 66308 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/fischer/normalized-fischer-4-6-fair.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2064938-1247703115/watcher-2064938-1247703115 -o /tmp/evaluation-result-2064938-1247703115/solver-2064938-1247703115 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 720892099 HOME/instance-2064938-1247703115.xml

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

MD5SUM BENCH= c0da7c4326183468bb45a178aa7f580c
RANDOM SEED=720892099

node13.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		: 3000.241
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		: 3000.241
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:       1452592 kB
Buffers:         75876 kB
Cached:         355448 kB
SwapCached:          0 kB
Active:         255372 kB
Inactive:       266676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1452592 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2880 kB
Writeback:           0 kB
Mapped:         111156 kB
Slab:            66180 kB
Committed_AS:   600648 kB
PageTables:       2096 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 node13 at 2009-07-16 02:12:08