Trace number 2065059

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 1.15782 1.17288

DiagnosticValue
ASSIGNMENTS231

General information on the benchmark

Namecsp/fischer/
normalized-fischer-8-2-fair.xml
MD5SUM3e56d59c7d80b7d2709032b217c8cabc
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 benchmark1.15782
Satisfiable
(Un)Satisfiability was proved
Number of variables4683
Number of constraints4420
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4420
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 1809508128
0.00/0.02	c Constructing HOME/instance-2065059-1247703305.xml  with 6136 constraints
0.18/0.26	c Solving 231 backtracks 4 restarts
1.07/1.17	s UNSATISFIABLE
1.07/1.17	d ASSIGNMENTS 231

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-2065059-1247703305/watcher-2065059-1247703305 -o /tmp/evaluation-result-2065059-1247703305/solver-2065059-1247703305 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1809508128 HOME/instance-2065059-1247703305.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: 2.27 2.11 1.92 4/72 12722
/proc/meminfo: memFree=1383968/2055920 swapFree=4192812/4192956
[pid=12722] ppid=12720 vsize=18576 CPUtime=0
/proc/12722/stat : 12722 (runsolver) R 12720 12722 11915 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 57022262 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 209135922471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/12722/statm: 4644 284 249 26 0 2626 0

[startup+0.0213209 s]
/proc/loadavg: 2.27 2.11 1.92 4/72 12722
/proc/meminfo: memFree=1383968/2055920 swapFree=4192812/4192956
[pid=12722] ppid=12720 vsize=4404 CPUtime=0
/proc/12722/stat : 12722 (pcs.big) R 12720 12722 11915 0 -1 4194304 521 657 0 0 0 0 0 0 25 0 1 0 57022262 4509696 164 996147200 134512640 135215973 4294956304 18446744073709551615 11921557 0 0 4096 0 0 0 0 17 1 0 0
/proc/12722/statm: 1101 164 139 171 0 14 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4404

[startup+0.10133 s]
/proc/loadavg: 2.27 2.11 1.92 4/72 12722
/proc/meminfo: memFree=1383968/2055920 swapFree=4192812/4192956
[pid=12722] ppid=12720 vsize=6672 CPUtime=0.08
/proc/12722/stat : 12722 (pcs.big) R 12720 12722 11915 0 -1 4194304 1343 657 0 0 8 0 0 0 25 0 1 0 57022262 6832128 887 996147200 134512640 135215973 4294956304 18446744073709551615 134583674 0 0 4096 0 0 0 0 17 1 0 0
/proc/12722/statm: 1668 887 387 171 0 593 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6672

[startup+0.301349 s]
/proc/loadavg: 2.27 2.11 1.92 4/72 12722
/proc/meminfo: memFree=1383968/2055920 swapFree=4192812/4192956
[pid=12722] ppid=12720 vsize=8468 CPUtime=0.27
/proc/12722/stat : 12722 (pcs.big) R 12720 12722 11915 0 -1 4194304 1935 657 0 0 27 0 0 0 25 0 1 0 57022262 8671232 1389 996147200 134512640 135215973 4294956304 18446744073709551615 134599870 0 0 4096 0 0 0 0 17 1 0 0
/proc/12722/statm: 2117 1389 406 171 0 1042 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 8468

[startup+0.701384 s]
/proc/loadavg: 2.27 2.11 1.92 4/72 12722
/proc/meminfo: memFree=1383968/2055920 swapFree=4192812/4192956
[pid=12722] ppid=12720 vsize=10812 CPUtime=0.68
/proc/12722/stat : 12722 (pcs.big) R 12720 12722 11915 0 -1 4194304 2706 657 0 0 67 1 0 0 25 0 1 0 57022262 11071488 1793 996147200 134512640 135215973 4294956304 18446744073709551615 134584968 0 0 4096 0 0 0 0 17 1 0 0
/proc/12722/statm: 2703 1793 409 171 0 1628 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 10812

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

[startup+1.10642 s]
/proc/loadavg: 2.25 2.11 1.92 3/73 12727
/proc/meminfo: memFree=1377048/2055920 swapFree=4192812/4192956
[pid=12722] ppid=12720 vsize=10812 CPUtime=1.07
/proc/12722/stat : 12722 (pcs.big) R 12720 12722 11915 0 -1 4194304 2728 657 0 0 106 1 0 0 25 0 1 0 57022262 11071488 1815 996147200 134512640 135215973 4294956304 18446744073709551615 12391041 0 0 4096 0 0 0 0 17 1 0 0
/proc/12722/statm: 2703 1815 409 171 0 1628 0
Current children cumulated CPU time (s) 1.07
Current children cumulated vsize (KiB) 10812

Child status: 0
Real time (s): 1.17288
CPU time (s): 1.15782
CPU user time (s): 1.13983
CPU system time (s): 0.017997
CPU usage (%): 98.7166
Max. virtual memory (cumulated for all children) (KiB): 10812

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.13983
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3404
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= 18
involuntary context switches= 37

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node41 at 2009-07-16 02:15:06
IDJOB=2065059
IDBENCH=54271
IDSOLVER=733
FILE ID=node41/2065059-1247703305
PBS_JOBID= 9521228
Free space on /tmp= 65788 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/fischer/normalized-fischer-8-2-fair.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065059-1247703305/watcher-2065059-1247703305 -o /tmp/evaluation-result-2065059-1247703305/solver-2065059-1247703305 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1809508128 HOME/instance-2065059-1247703305.xml

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

MD5SUM BENCH= 3e56d59c7d80b7d2709032b217c8cabc
RANDOM SEED=1809508128

node41.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		: 3000.212
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	: 5931.00
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		: 3000.212
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:       1384448 kB
Buffers:         58740 kB
Cached:         388836 kB
SwapCached:          0 kB
Active:         186196 kB
Inactive:       407556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1384448 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2484 kB
Writeback:           0 kB
Mapped:         157668 kB
Slab:            62984 kB
Committed_AS:   583816 kB
PageTables:       1944 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= 65788 MiB
End job on node41 at 2009-07-16 02:15:07