Trace number 2058955

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 1.81172 1.83418

DiagnosticValue
ASSIGNMENTS11597

General information on the benchmark

Namecsp/QCP-25/
normalized-qcp-25-264-13_ext.xml
MD5SUM449c5198a410e7a374498cb58b914070
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.81172
Satisfiable
(Un)Satisfiability was proved
Number of variables625
Number of constraints10142
Maximum constraint arity2
Maximum domain size25
Number of constraints which are defined in extension10142
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.05	c Seed is 1540309137
0.00/0.05	c Constructing HOME/instance-2058955-1247694395.xml  with 70862 constraints
0.27/0.31	c Solving 11597 backtracks 14 restarts
1.76/1.83	s UNSATISFIABLE
1.76/1.83	d ASSIGNMENTS 11597

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-2058955-1247694395/watcher-2058955-1247694395 -o /tmp/evaluation-result-2058955-1247694395/solver-2058955-1247694395 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1540309137 HOME/instance-2058955-1247694395.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: 1.89 0.89 0.34 4/72 16463
/proc/meminfo: memFree=1272184/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=5356 CPUtime=0
/proc/16463/stat : 16463 (pcssolve) R 16461 16463 16180 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 56503361 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 264840473247 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16463/statm: 1339 241 200 169 0 50 0
[pid=16464] ppid=16463 vsize=5356 CPUtime=0
/proc/16464/stat : 16464 (pcssolve) R 16463 16463 16180 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 56503362 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 264840473895 0 0 4096 0 0 0 0 17 1 0 0
/proc/16464/statm: 1339 243 202 169 0 50 0
[pid=16465] ppid=16463 vsize=5356 CPUtime=0
/proc/16465/stat : 16465 (pcssolve) R 16463 16463 16180 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 56503362 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 264840473247 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16465/statm: 1339 241 200 169 0 50 0

[startup+0.10606 s]
/proc/loadavg: 1.89 0.89 0.34 4/72 16463
/proc/meminfo: memFree=1272184/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=7432 CPUtime=0.07
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 1694 824 0 0 7 0 0 0 18 0 1 0 56503361 7610368 1076 996147200 134512640 135095119 4294956304 18446744073709551615 4159189652 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 1858 1076 367 142 0 812 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 7432

[startup+0.201071 s]
/proc/loadavg: 1.89 0.89 0.34 4/72 16463
/proc/meminfo: memFree=1272184/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=10828 CPUtime=0.17
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 2751 824 0 0 16 1 0 0 18 0 1 0 56503361 11087872 1843 996147200 134512640 135095119 4294956304 18446744073709551615 134706714 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 2707 1843 367 142 0 1661 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 10828

[startup+0.301079 s]
/proc/loadavg: 1.89 0.89 0.34 4/72 16463
/proc/meminfo: memFree=1272184/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=15904 CPUtime=0.27
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 4219 824 0 0 25 2 0 0 19 0 1 0 56503361 16285696 2733 996147200 134512640 135095119 4294956304 18446744073709551615 134706714 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 3976 2733 367 142 0 2930 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 15904

[startup+0.70112 s]
/proc/loadavg: 1.89 0.89 0.34 4/72 16463
/proc/meminfo: memFree=1272184/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=16216 CPUtime=0.66
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 4335 824 0 0 64 2 0 0 23 0 1 0 56503361 16605184 2849 996147200 134512640 135095119 4294956304 18446744073709551615 134616992 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 4054 2849 378 142 0 3008 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 16216

[startup+1.5012 s]
/proc/loadavg: 1.89 0.89 0.34 3/73 16469
/proc/meminfo: memFree=1261744/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=16572 CPUtime=1.45
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 4491 824 0 0 143 2 0 0 25 0 1 0 56503361 16969728 2972 996147200 134512640 135095119 4294956304 18446744073709551615 134837948 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 4143 2972 378 142 0 3097 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 16572

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

[startup+1.60121 s]
/proc/loadavg: 1.89 0.89 0.34 3/73 16469
/proc/meminfo: memFree=1261744/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=16700 CPUtime=1.56
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 4541 824 0 0 153 3 0 0 25 0 1 0 56503361 17100800 3022 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 4175 3022 378 142 0 3129 0
Current children cumulated CPU time (s) 1.56
Current children cumulated vsize (KiB) 16700

[startup+1.80124 s]
/proc/loadavg: 1.89 0.89 0.34 3/73 16469
/proc/meminfo: memFree=1261744/2055920 swapFree=4192812/4192956
[pid=16463] ppid=16461 vsize=17212 CPUtime=1.76
/proc/16463/stat : 16463 (pcs.small) R 16461 16463 16180 0 -1 4194304 4712 824 0 0 173 3 0 0 25 0 1 0 56503361 17625088 3128 996147200 134512640 135095119 4294956304 18446744073709551615 11712341 0 0 4096 0 0 0 0 17 1 0 0
/proc/16463/statm: 4303 3128 378 142 0 3257 0
Current children cumulated CPU time (s) 1.76
Current children cumulated vsize (KiB) 17212

Child status: 0
Real time (s): 1.83418
CPU time (s): 1.81172
CPU user time (s): 1.77173
CPU system time (s): 0.039993
CPU usage (%): 98.7758
Max. virtual memory (cumulated for all children) (KiB): 17212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.77173
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5539
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= 22
involuntary context switches= 51

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node44 at 2009-07-15 23:46:35
IDJOB=2058955
IDBENCH=53538
IDSOLVER=734
FILE ID=node44/2058955-1247694395
PBS_JOBID= 9521223
Free space on /tmp= 66280 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/QCP-25/normalized-qcp-25-264-13_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2058955-1247694395/watcher-2058955-1247694395 -o /tmp/evaluation-result-2058955-1247694395/solver-2058955-1247694395 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1540309137 HOME/instance-2058955-1247694395.xml

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

MD5SUM BENCH= 449c5198a410e7a374498cb58b914070
RANDOM SEED=1540309137

node44.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		: 3000.219
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		: 3000.219
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:       1272664 kB
Buffers:         74864 kB
Cached:         592964 kB
SwapCached:          0 kB
Active:         213788 kB
Inactive:       500188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1272664 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2684 kB
Writeback:           0 kB
Mapped:          57568 kB
Slab:            54680 kB
Committed_AS:   590784 kB
PageTables:       1800 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= 66280 MiB
End job on node44 at 2009-07-15 23:46:37