Trace number 1043857

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
casper zitoUNSAT 0.312952 0.31922

DiagnosticValue
CHECKS3366

General information on the benchmark

Namecsp/allsquaresUnsat/
normalized-squaresUnsat-29-29.xml
MD5SUM3195ec144ebbf2fbe4f6ca5dc1ee9867
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.312952
Satisfiable
(Un)Satisfiability was proved
Number of variables1682
Number of constraints2033
Maximum constraint arity29
Maximum domain size92
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1625
Global constraints used (with number of constraints)cumulative(2),weightedsum(406)

Solver Data (download as text)

0.20/0.21	c [ This is CaSPERzito (C) mvc@di.fct.unl.pt ]
0.20/0.21	c Parsing = 1
0.20/0.21	c Building = 1
0.20/0.21	c [ NumberOfVariables = 1682 ]
0.20/0.21	c [ NumberOfConstraints = 2033 ]
0.20/0.21	c [ SizeOfSearchSpace(log2) = 1986.07 ]
0.20/0.21	c SymmetrySearch = 1
0.20/0.28	c [ Found 2.8823e+17 symmetries ]
0.28/0.31	c InitialPropagation = 0
0.28/0.31	s UNSATISFIABLE
0.28/0.31	d CHECKS 3366
0.28/0.31	c [ TotalFails = 0 ]
0.28/0.31	c [ NumberOfRestarts = 0 ]
0.28/0.31	c [ TotalTime = 0.197177 secs ]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1043857-1215026406/watcher-1043857-1215026406 -o /tmp/evaluation-result-1043857-1215026406/solver-1043857-1215026406 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzito HOME/instance-1043857-1215026406.xml 1251189398 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 27797
/proc/meminfo: memFree=1790672/2055920 swapFree=4192812/4192956
[pid=27797] ppid=27795 vsize=2328 CPUtime=0
/proc/27797/stat : 27797 (casperzito) D 27795 27797 26988 0 -1 4194304 57 0 0 0 0 0 0 0 18 0 1 0 130025955 2383872 41 996147200 134512640 135472138 4294956224 18446744073709551615 12591908 0 2147483391 4096 0 18446744072099937270 0 0 17 1 0 0
/proc/27797/statm: 582 41 31 234 0 14 0

[startup+0.21094 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 27797
/proc/meminfo: memFree=1790672/2055920 swapFree=4192812/4192956
[pid=27797] ppid=27795 vsize=103504 CPUtime=0.2
/proc/27797/stat : 27797 (casperzito) R 27795 27797 26988 0 -1 4194304 2199 0 0 0 19 1 0 0 19 0 1 0 130025955 105988096 2159 996147200 134512640 135472138 4294956224 18446744073709551615 134534868 0 0 4096 0 0 0 0 17 1 0 0
/proc/27797/statm: 25876 2159 487 234 0 24578 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 103504

[startup+0.301956 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 27797
/proc/meminfo: memFree=1790672/2055920 swapFree=4192812/4192956
[pid=27797] ppid=27795 vsize=106408 CPUtime=0.28
/proc/27797/stat : 27797 (casperzito) R 27795 27797 26988 0 -1 4194304 2939 0 0 0 27 1 0 0 19 0 1 0 130025955 108961792 2899 996147200 134512640 135472138 4294956224 18446744073709551615 134666700 0 0 4096 0 0 0 0 17 1 0 0
/proc/27797/statm: 26602 2899 495 234 0 25304 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 106408

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

Child status: 0
Real time (s): 0.31922
CPU time (s): 0.312952
CPU user time (s): 0.293955
CPU system time (s): 0.018997
CPU usage (%): 98.0365
Max. virtual memory (cumulated for all children) (KiB): 106408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.293955
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2988
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= 16
involuntary context switches= 18

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node28 at 2008-07-02 21:20:06
IDJOB=1043857
IDBENCH=53754
IDSOLVER=362
FILE ID=node28/1043857-1215026406
PBS_JOBID= 7874413
Free space on /tmp= 66548 MiB

SOLVER NAME= casper zito
BENCH NAME= CPAI08/csp/allsquaresUnsat/normalized-squaresUnsat-29-29.xml
COMMAND LINE= HOME/casperzito BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1043857-1215026406/watcher-1043857-1215026406 -o /tmp/evaluation-result-1043857-1215026406/solver-1043857-1215026406 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzito HOME/instance-1043857-1215026406.xml 1251189398 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 3195ec144ebbf2fbe4f6ca5dc1ee9867
RANDOM SEED=1251189398

node28.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		: 3000.231
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		: 3000.231
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:       1791152 kB
Buffers:         20616 kB
Cached:         114296 kB
SwapCached:          0 kB
Active:         168976 kB
Inactive:        40492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1791152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3236 kB
Writeback:           0 kB
Mapped:          92956 kB
Slab:            40196 kB
Committed_AS:  1026340 kB
PageTables:       1932 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= 66544 MiB
End job on node28 at 2008-07-02 21:20:07